1 ".
. z.1
Department of
LIBRARY
Marine Science Laboratory
Ore7on State University
OCEANOGRAPHY
A Compilation of Observations
from Moored Current Meters
and Thermographs
SCHOOL OF SCIENCE
OREGON STATE UNIVERSITY
Volume Ill: Oregon Continental Shelf
May-June 1967
April-September 1968
by
R. D. Pillsbury
R. L. Smith
J. G. Pattullo
National Science Foundation
Grants GA 1435, GA 295
Office of Naval Research
Contracts 1286 (10) and N00014-67-A-0369-0007
Project 083-102
Reproduction in whole or in part is
permitted for any purpose of the United
States Government
Data Report 40
Reference 70-3
June 1970
Department of Oceanography
School of Science
Oregon State University
Corvallis, Oregon 97331
A COMPILATION OF OBSERVATIONS FROM MOORED
CURRENT METERS AND THERMOGRAPHS
VOLUME
OREGON CONTINENTAL SHELF
MAY - JUNE 1967
APRIL - SEPTEMBER 1968
by
R. D. Pillsbury
R. L. Smith
J. G. Pattullo
Data Report No. 40
National Science Foundation
Grant GA 1435
Office of Naval Research
Contracts 1286(10) and N00014-67-A-0369-0007
Project NR 083-102
Distribution of this document is unlimited
Reference 70-3
June 1970
John V. Byrne
Chairman
TABLE OF CONTENTS
Abstract
List of Figures
List of Tables
Introduction
1
Observational Program
2
Instruments
6
Temperature Spectra
6
Hydrographic Sampling Program
6
1967 Long Run, DB5 Installation Details
9
1967 Long Run, DB7 Installation Details
19
1967 Long Run DB10 Installation Details
27
1967 Short Run, DB7 Installation Details
31
1968 17 April - 27 May (Installation A) Installation Details .
37
1968 24 May-19 June (Installation B) Installation Details
47
1968 23 June-1 August (Installation C) Installation Details .
.
57
1968 1 August-11 September (Installation D) Installation Details 71
Personnel
cknowledgements
86
86
References
87
Appendix
88
Distribution List
102
ABSTRACT
A summary of one phase of a direct observational program conducted in the coastal region off Oregon is presented. The measurements
were made primarily on the continental shelf during most of the coastal
upwelling season (May and June 1967; April through September 1968).
The principal measurements were time series of horizontal current
velocity and temperature fields; these observations were made with an
array of moored, recording meters. Supplementary measurements of
hydrographic variables, wind, atmospheric pressure, and mean sea level
were also made.
LIST OF FIGURES
Figure No.
1
Caption
Page
Locations of Array and Hydrographic
Stations off Depoe Bay, Oregon, MayJune 1967; April-September 1968
3
2
Summary of Available Data from 1967
4
3
Summary of Available Data from 1968
5
LIST OF TABLES
Table No.
I
II
Title
Temperature Statistics
A.
1967
B. 1968
Changes in Temperature associated with
changes in wind components
A.
DB5, 1967
B. DB7, 1967
C. DB7, 1968
Page
7
7
83
84
85
1
INTRODUCTION
This is the third data report of a program designed to study physical
processes in the Oregon coastal regime by means of moored arrays containing recording instrumentation and by use of complementary hydrographic
and atmospheric data. Various first-order statistics and plots of errorcorrected and numerically-tapered data are presented for time series of
current velocity and temperature. Plots of numerically-tapered wind
velocity, both of geostrophic winds as calculated from atmospheric pressure
distribution and of directly observed winds are shown. The data were
collected in May and June 1966 and April through September 1968, principally on the Oregon continental shelf. The report will be presented in
two halves, one concerning the 1967 data and the other, the 1968 data.
Data reports of the first phase (Collins, Creech, and Pattullo, 1966)
and second phase (Mooers, Bogert, Smith and Pattullo, 1968) have been
compiled in similar formats. A more complete description of the mooring
system used is given in a paper by Pillsbury, Smith and Tipper (1969).
An analysis of the relationships between temperature and winds has been
given in a M. S. thesis by Fisher (1970). A comprehensive summary of
the results from the first phase of this program has been given in a Ph. D.
thesis by Collins (1968) while an excellent theoretical discussion of much
of our work is given in a Ph. D. thesis by Mooers (1969).
Rather than tabulate our "data bank", we think it is of greater
interest to display our data records in graphical and tabular forms of
first-order statistics. By pursuing this approach, we can provide feedback for subsequent measurements and calculations rather rapidly--months
to years in advance of formal publication of only the principal results.
A secondary objective is to indicate the need for "auxiliary data" of good
quality by showing the utility of that which has actually been available.
Since we think it is important to develop the descriptive art of time series
and vertical profile presentation at an intermediate stage, i. e. , preliminary
to correlation and spectral analyses, we expect to continue to experiment
with various graphical and tabular representations in the future, rather
than to adhere to a rigid format. In a data report of this nature, it will
be necessary to record some items only once, others on all occasions.
By exposing ourselves to internal and external review, we hope to stimulate constructive criticism. We believe it is also true that our work is
most useful to a broad audience of oceanographers in this intermediate
form; the subsequent, more sophisticated analyses are likely to be
chiefly of interest to dynamical or theoretical physical oceanographers.
2
OBSERVATIONAL PROGRAM
The observational program during 1967 was nearly a repeat of the
1966 program. The emphasis was on an array extending perpendicular
to the bottom contours near Depoe Bay (Fig. 1). Figure 2 gives the
available data both in terms of position and time. Again, as in 1966,
a supporting hydrographic sampling program was maintained in much
the same fashion as before. This sampling procedure included special
bottle spacing to obtain a higher definition of the complex structure as
previously observed during 1966.
In 1968 the program was oriented toward gathering a long series
of data at a single point. The station we call DB7 was selected for this
series of observations. The success of this data series can be seen in
Figure 3. While there are many blanks on the table, the currents at
50 meters were measured for over 100 days with only a minor interruption.
45°20'
400
0
45°00'
•
DB –50
•
DB-40
•
•
•
DB- 25
44°40'
Figure 1. Locations of Array and Hydrographic Stations off Depoe Bay, Oregon, May-June
1967; April-September 1968. Legend: Hydrographic Station - .
Anchor
Station - •,t
Instrument Installation - •
Depoe Bay - DB
Station numbers are given in nautical miles offshore and depth contours in meters.
MAY
7
10
10
DB-5 (20d
D -7 (20m)
DB7 (40m)
.............
THERMOGRAPH
DB-10 (20m)
DB-7(20m
DB-7(40m)
.04.1-7 (60 m)
DB-5 (20
DB-5 (60m 1
DB-7 (20m)
CURRENT
METER
DB-7 (40m
DB-10(20m)
DB-10 (60 fn
08-7 (20m)
08-7(40m)
DB-7 (60m
(NEWPORT)
HYDROGRAPH/C
( 6705 B
(DEPOE BAY)
I I I
(6706C)
(6706A)
(6706A)11
Figure 2. Summary of Available Data from 1967
(6706 B )
APR
14
21
28
MAY
5
12
19 26
JUN
2
I
9
1
16
THERMOGRAPH
23 30
JUL
7
14
21
28
AUG
4
II
18
25
SEPT
I
8
25n,
CURRENT
METER
Om
75 M"'
HYDROGRAPH/C
W/ND
J(6804C)
(6804 D)
U(6805A)
(NEWPORT)
(6805 Drn (DEPOE BAY)
1 I
U(6807A)
fl(6806C)
Figure 3. Summary of Available Data from 1968.
(6808A)
Ha(6807E )
II -
01
6
INSTRUMENTS
Current velocity in the sensor array was measured by Braincon
Type 316 Histogram Current Meters (Braincon Corporation, 1965;
Sunblad, 1965). Current observations were made continuously over 10and 20-minute periods and recorded on photographic film. Actually, one
minute of the sampling period was used for film advance so only nine
minutes of data were recorded at the 10-minute rate. Current speed was
integrated by the meter over this period. (Note: It is possible to obtain
a speed sample by taking the difference between the "arc-value" at the
beginning of the speed arc on successive film frames.) Current direction
was sampled by the meter as a quasi-frequency curve serving as a low
quality histogram which is usually sufficient to identify the extremes and
the mode of direction. The mode of direction is taken to be the "mean
direction. " The "mean direction" and the speed are then combined in a
polar coordinate format to give the mean velocity in an observational
interval, since a true vector mean is impossible to achieve with the
present recording procedure.
The operational characteristics of the Type 316 Histogram current
meter are summarized in Mooers et al. (1968).
TEMPERATURE SPECTRA
Power spectra for the longer temperature records have been included here. These spectra cover the frequency range from 0 cycles/hour
to 1/4 cycle/hour. Of note are the statistically significant peaks, in most
of them, at about 0.083 cycles/hour and/or 0.057 cycles/hour. The
semidiurnal frequency is 0.083 cycles/hour, corresponding to a period
of 12 hours, and 0.057 cycles/hour is the inertial frequency at latitude
45 N. These oscillations can also be seen in the low-passed temperature
plots. Some of the peaks that appear at higher frequencies in the spectra
are harmonics of the semidiurnal and inertial oscillations.
HYDROGRAPHIC SAMPLING PROGRAM
Hydrographic data are also available for this period. For the 1967
data see Barstow, Gilbert, and Wyatt (February 1969) and for the 1968
hydrographic data see Barstow, Gilbert, and Wyatt (November 1969).
7
Table I. A. 1967 Temperature Statistics
Station
Depth
DB-5
20 m
20 m
Dates
7 May 67
to
3 June 67
7 May 67
to
8 June 67
40m
60 m
Mean
Temperature
Standard
Deviation
3876
8.72°C
0.56° C
4496
9.15
0.52
682
8.59
0.41
7 May 67
to
30 May 67
3282
8.53
0.24
9 June 67
to
14 June 67
683
8.02
0.10
9 June 67
to
14 June 67
681
7.46
0.15
9 June 67
to
14 June 67
DB-7
Nurnber.
of Observations
Table I. B. 1968 Temperature Statistics
25 m
DB-7
-7
50 m
17 April 68
to
27 May 68
5731
8.72° C
0. 57° C
24 May 68
to
31 May 68
1018
8.88
0.88
22 June 68
to
1 July 68
1543
7.85
0.24
24 May 68
to
1 June 68
1169
7.86
0.20
22 June 68
to
10 July 68
2487
7.64
0.08
1 Aug 68
to
10 Aug 68
1248
7.48
0.05
8
-10
-35
140
70
1
35
I
10
20
1
20m
-70
-140
-40
60m
I
(1)
Li
I
5-20. I
/
l
5-25/I
/
/
-210 tr)
1
.);
r
-280 I .
8
q■I
1
-350
-60 ■J
si
C3
i■
i
-80
3
?
25.
-100
/1
5-30
1
1
i
/
-420
1
-490
-120
5-30
6- / 1
PROGRESSIVE VECTOR DIAGRAMS
Symbols indicate 0000 GMT on successive days
DB 5: 44 50.3'N, 124 10.5'W
9
1967 LONG RUN
DB 5
Position: 44°50.3' N, 124°10.5' W
Depth of Water: 78 meters
Set at 1900 GMT, 7 May 1967 by R/V YAQUINA
Retrieved at 1600 GMT, 7 June 1967 by R/V YAQUINA
Data Interval: 1800 GMT 7 May - 1720 GMT 2 June 1967
Instrumentation
Current meters and thermographs were placed at depths
of 20 and 60 meters as follows:
Depth
20 m
60 m
Histogram Current
Meter Serial No.
3160049
3160054
Thermograph
Serial No.
1460087
Current meters and thermograph cycled every 10 minutes.
30-
DIRECTION
7 May - 1 June, 1967
20. meters
DIRECTION
7 - 17 May, 1967
60 meters
360
180
0
DIRECTION (degrees)
DIRECTION
20 May - 2 June, 1967
60 meters
0.20 -
Lu
0
180
DIRECT/ON (degrees)
360
0
180
DIRECTION (degrees)
360
10-
SPEED
7 May - 1 June, 1967
20 meters
80
SPEED (cm/sec)
SPEED
0.0820 May - 2 June, 1967
60
meters
_
N,
SPEED
7 - 17 May, 1967
60 meters
C.)
lu
-,....1—
k
Lk
0.04 -
Lu
--,_
_
Et
_,---
0.04 -
u--
_
•ct
0
1
I
20
SPEED (cm /sec)
I
I
40
Li,
et
—
0
I
I
20
SPEED (cm /sec)
i
I
40
80
0
40
0
7 Moy
1967
1
1
1
10
1
1
1
15
1
1
20
1
1
1
1
125 1
1
1
I
130
-40
7 - 31 May, 19 67
20 meters
-80-
13
,i1
0
4
J
-40
40
-40
14
0
20
-20-
Q)
(f)
20Ma
25
20 May - 1 June, 1967
6 0 meters
15
20-
TEMPERATURE
7 May - 3 June, 1967
20 meters
INIIIIMINI
10-
-1-
o
i
I
8
TEMPERATURE (°C)
TEMPERATURE
May - 2 June, 1967
20 meters
17
100
90% confidence interval
FREQUENCY (cyc/e/hd
TEMPERATURE POWER SPECTRUM
7 May - 3 June 1967
20 meters
18
35
175
I
35
-5
10
40m
5
1
5-15 .
5-8 /
20m
-10
/
-175
5-20/
-20 C.)
5-9 ••
5-25
-30
-350
5- 30 •
6_
11
6-- 5 /
-525
PROGRESSIVE VECTOR DIAGRAMS
Symbols indicate 0000 GMT on successive days
DB 7: 44 51.4'N, 124 12.01W
19
1967 LONG RUN
DB 7
Position: 44°51.4'N, 124°12.0'W
Depth of Water: 102 meters
Set at 2100 GMT 7 May 1967 by R/V YAQUINA
Retrieved at 1500 GMT 7 June 1967 by R/V YAQUINA
Data Interval: 2120 GMT 7 May - 0230 GMT 8 June 1967
Instrumentation
Current meters and thermographs were placed at depths of
20 and 40 meters as follows:
Depth
20 m
40 m
Histogram Current
Meter Serial No.
3160055
3160088
Thermograph
Serial No.
14600088
14600115
Current meters cycled every 10 minutes; thermograph cycled
every 5 minutes.
DIRECTION
7 - 9 May, 1967
20 meters
DIRECTION
7 May - 7 June, 1967
40 meters
40-
0
0
40-
0
Lu
W
0
1
180
DIRECT/ON (degrees)
360
20
0
180
DIRECT/ON (degrees)
360
21
SPEED
7 - 9 May, 1967
20 meters
30—
20-
I 0—
ri-LLE-
0
T
20
40
60
SPEED (cm/sec)
7.5—
SPEED
7 May - 7 June, 1967
40 meters
1
JU
0
20
40
SPEED (cm/sec)
60
80
01
I
I
8 May - 6 June, 1967
40 meters
23
20-
TEMPERATURE
7 May - 8 June, 1967
20 meters
10-
J
0
8
9
10
TEMPERATURE (°C)
TEMPERATURE
7 - 30 May, 1967
40 meters
20-
10-
0
7
8
TEMPERATURE (Y)
(°C)
10
TEMPERATURE
8 May - 7 June, 1967
20 meters
12
10
8
6
8
15
10
May
1
1
1
20
25
1
4
4
30 4
ilJune+
5
I
1967
TEMPERATURE
8- 30 May, 1967
40 meters
6
8 May
110
15
I
20
25
I
I
25
TEMPERATURE POWER SPECTRUM
7 May - 8 June, 1967
20 meters
100
90% confidence interval
1
10
0.I
0.01
0
0.10
0.20
FREQUENCY (cycle/ht.)
TEMPERATURE POWER SPECTRUM
7 - 30 May, 1967
40 meters
100
i
90% confidence interval
0.1
0.010
0.10
0.20
FREQUENCY (cycle/hr)
26
-25
1
100
1
50
1
251
1
5-10.f _
/
60m
-50
5-15.
-100
5-20/
/
I
-
-150 (r)
J
5-25 1
/
5- 30
-200 C)
-250
6- /
-300
6-5/
-350
PROGRESSIVE VECTOR DIAGRAM
Symbols indicate 0000 GMT on successive days
DB 10: 44 50.6'N, 124 17.2'W
27
1967 LONG RUN
DB 10
Position: 44° 50. 6' N, 124° 17. 2' W
Depth of Water: 140 meters
Set at 2400 GMT 7 May 1967 by R/V YAQUINA
Retrieved at 1400 GMT 8 June 1967 by R/V YAQUINA
Data Interval: 0010 GMT 8 May - 1310 GMT 8 June 1967
Instrumentation
Current meters and a thermograph were set at depths of
20 and 60 meters as follows:
Depth
20 m
60 m
Histogram Current
Meter Serial No.
3160089
3160090
Thermograph
Serial No.
1460087
Current meter at 60 meters cycled every 10 minutes; current
meter at 20 meters and thermograph didn't run.
28
30-
DIRECTION
8 May - 3 June, 1967
60 meters
T-
0
360
180
DIRECTION (degrees)
7.5 -
SPEED
8 May - 8 June, 1967
60 meters
0
SPEED (cm/sec)
40
-40.-
8 May - 8 June, 1967
60 meters
30
60m
10
10
6-10 1 0
)
•
20
PROGRESSIVE VECTOR DIAGRAM
Symbols indicate 0000 GMT on successive days
DB 7: 44 50.9'N, 124 17.3'W
31
1967 SHORT RUN
DB 7
Position: 44°50. 9'N, 124°17. 3' W
Depth of Water: 104 meters
Set at 2300 GMT 9 June 1967 by R/V YAQUINA
Retrieved at 1700 GMT 14 June 1967 by R/V YAQUINA
Data Interval: 2310 GMT 9 June - 1620 GMT 14 June 1967
Instrumentation
Current meters and thermographs were placed at depths
of 20, 40, and 60 meters as follows:
Histogram Current
Depth
20 m
40 m
60 m
Meter Serial No.
3160088
3160089
3160090
Thermograph
Serial No.
14600115
14600088
14600087
Current meter and thermograph at 60 meters cycled every
10 minutes; thermographs at 20 and 40 meters cycled every
5 minutes; current meters at 20 and 40 meters didn't run.
32
DIREC TION
9 - 14 June, 1967
60 meters
30-
360
180
DIRECT/ON (degrees)
SPEED
9 - 14 June, 1967
60 meters
0
10
20
SPEED (cm/sec)
30
TEMPERATURE
9 - 14 June, 1967
20 meters
TEMPERATURE
9 - 14 June, 1967
40 meters
TEMPERATURE
9 - 14 June, 1967
60 meters
10
0
8
9
TEMPERATURE (°C)
10
7
9
TEMPERATURE (CC)
0
6
7
r
1
8
TEMPERATURE (°C)
TEMPE RATURE
10 - 14 June, 1967
20 meters
TEMPERATURE
10 - 14 June, 1967
40 meters
TEMPERATURE
10 - 14 June, 1967
60 meters
I0
ce
ci 8
14.1
Lki
6
10 Jun?
1967
I
I
I
6
10 Jun e
1967
I
I
I
6
I0June
1
1967
1
1
1
36
175
1
1
1
1
35
1
1
—10
35
10
50
4-20/
25
m
/
/ -
50m
4-251
-175
-50
4-30•
5-5 •
/
-350
-100
5-10/
5-/5/
525
5-20.
PROGRESSIVE VECTOR DIAGRAMS
Symbols indicate 0000 GMT on successive days
DB 7: 44 50.5'N, 124 13.8'W
-150
37
1968 INSTALLATION A
Position: 44°50.5' N, 124°13.8' W, DB 7
Depth of Water: 99 meters
Set at 2000 GMT 17 April 1968 by R/V YAQUINA
Retrieved at 1500 GMT 27 May 1968 by R/V YAQUINA
Data Interval: 2020 GMT 17 April - 1520 GMT 27 May 1968
Instrumentation
Current meters and a thermograph were placed at depths
of 25 and 50 meters as follows:
Depth
25 m
50 m
Histogram Current
Meter Serial No.
3160088
3160055
Thermograph
Serial No.
14600115
Current meters and thermograph cycled every 10 minutes.
DIREC TION
17 - 27 April, 1968
50 meters
DIREC TION
17 April - 20 May, 1968
25 meters
40
40
30
et
20
10-
10
r-
0
180
DIRECTION (degrees)
360
0
180
DIRECT/ON (degrees)
360
39
SPEED
17 April - 20 May, 1968
25 meters
30-
SPEED
17 - 27 April, 1968
50 meters
0
I
20
40
SPEED (cm/sec)
I
60
80-
01
1
I
1
1
I
I
1
I
I
1
f
I
I
I
40
cb
-40
-80
1
5
130 ilMAYI
25
1
1
1
1
I
1
4--
1
41
80
0
0
-40
120
17 A p r.
0
1
1968
1
1
1-
25
I
I
I
I
I
17 - 27 April, 1968
50 meters
TEMPERATURE
17 April - 27 May, 1968
25 meters
9
10
TEMPERATURE (°C)
II
12
TEMPERATURE
18 April - 1 May, 196 8
25 meters
10
8
6
18 Apr.
1
1968
I
20
I
1
I
1
1
25
1
I
1
I
1
30 I May
1
1
TEMPERATURE
1 - 25 May, 1968
25 meters
12
6
I May
1968
I
1
I
i
5
1
I
10
1
I
1
1
I
I
I
1
15
1
I
I
I
1
20
3
1
1
i
I
25
1
44
100
90% confidence interval
I0
0.1
0.010
0.10
0.20
FREQUENCY (cycle/hr)
TEMPERATURE POWER SPECTRUM
17 - 27 April 1968
25 meters
.PA\
-40
C
6-5.
6-561.
-20
/
40- 116-5
40
T
5-3/1
-
20- „
20
50 m
40
60
20
I
4
LL1
I
..
5-25
40
20
I
5-26
(
10
10
i
5-26
)
m-
25 m
-20
20
6_0/
69
40
-40
6-15?
60
(
PROGRESSIVE VECTOR DIAGRAMS
Symbols indicate 0000 GMT on successive days
DB 7: 44 52.4'N, 124 13.0'W
60
so
20
75 m
47
1968 INSTALLATION B
Position: 44°52.4'N, 124°13.0'W, DB 7
Depth of Water: 100 meters
Set at 2000 GMT 24 May 1968 by R/V YAQUINA
Retrieved at 2130 GMT 23 June 1968 by R/V YAQUINA
Data Interval: 2040 GMT 24 May - 0040 GMT 19 June 1968
Instrumentation
Current meters and thermographs were placed at depths
of 25, 50 and 75 meters as follows:
Depth
25 m
50 m
75 m
Histogram Current
Meter Serial No.
3160049
3160054
3160090
Thermograph
Serial No.
14600087
14600089
Current meters and thermographs cycled every 10 minutes.
30-
DIREC TION
24 May - 9 June,
25 meters
180
1968
360
DIRECTION (degrees)
30-
DIREC TION
24 May - 19 June, 1968
50 meters
15-
-‘))
■-
DIREC TION
25 May - 6 June, 1968
75 meters
-L
20Lk'
Lk,
I 0
10-
Lk)
Q
360
DIRECTION (degrees)
0
180
DIRECTION (degrees)
360
49
30-
SPEED
24 May - 9 June, 1968
25 meters
0
26
40
SPEED (crn/sec)
SPEED
24 May - 19 June, 1968
50 meters
0
20
40
60
SPEED (cm/sec)
10
SPEED
25 May - 6 June, 1968
75 meters
5
60
SPEED (cm/sec)
50
80
1
J
I
0
40-
n
I
-4040
• A
24Ma)\
2June i
'‘.
I
1
1\,
-40
24 May - 9 June, 1968
25 meters
40
-40
40
-40
52
80
40-
v
-40-
25 May - 5 June, 1968
75 meters
53
20-
TEMPERATURE
24 - 31 May, 1968
25 meters
10-
8
9
10
11
12
TEMPERATURE (°C)
40-
TEMPERATURE
24 May - 1 June, 1968
50 meters
30-
20-
10-
0
7
8
TEMPERATURE (°C)
9
54
TEMPERATURE
25 - 31 May, 1968
25 meters
TEMPERATURE
25 May - 1 June. 1968
50 meters
25 Ma ly
1968
130
30
1
I
I
II June
I
55
100
90% confidence interval
10
0.1
0.01
0
0.10
0.20
FREQUENCY (cyc/e/hr)
TEMPERATURE POWER SPECTRUM
24 May - 1 June 1968
50 meters
56
10
10
20
1
1
1
25 m
0)
ki
?
_.1
L .-A
(
s !
10
I
6-30
1
( ) •
6-30 A.( 1 if
1
..1•'
6-25 .1.- i 7-n- - .;7-.25
7-5
I
.-•
M
.
50
I
f-•1
20-
40
I
.08_/
1. i
)
•7-5
50 m
I
(r)
4.,
7-15
7-4.4
1
,, 100
Q
C.)
,_
f■
5
i
.37-20
)
7- .7..N.
/ \:•44
20-
<
-
6-30n/
tr)
44 10
.T'
Z.4 1
. C
20
40
/
(.:
6-25 \
75 m
?
•7-25
10 -
10
10
10
7-25
)8-/
20
PROGRESSIVE VECTOR DIAGRAMS
Symbols indicate 0000 GMT on successive days
DB 7: 44 49.9'N, 124 13.0'W
57
1968 INSTALLATION C
Position: 44°49.9'N, 124°13.0'W, DB 7
Depth of Water: 100 meters
Set at 2000 GMT 23 June 1968 by R/V YAQUINA
Retrieved at 1645 GMT 1 August 1968 by R/V YAQUINA
Data Interval: 1940 GMT 23 June - 1620 GMT 1 August 1968
Instrumentation
Current meters and thermographs were placed at depths
of 25, 50, and 75 meters as follows:
Depth
25 m
50 m
75 m
Histogram Current
Meter Serial No.
3160089
3160088
3160055
Thermograph
Serial No.
14600115
14600088
Current meters cycled every 20 minutes; thermographs
cycled every 10 minutes.
58
20-
DIRECTION
23 June - 1 August, 1968
25 meters
0
180
360
DIRECTION (degrees)
10-
DIRECT ION
23 June - 1 August, 1968
50 meters
5-
0
1130
1
D/RECrioN (degrees)
360
59
30-
DIRECTION
23 June - 9 July, 1968
75 meters
20
W
10-
r
0
360
180
D/RECT/ON (degrees)
30-
DIRECTION
22 July - 1 August, 1968
75 meters
o
L) 20-
W
LAJ
0
180
D/RECT/ON (degrees)
360
60
7.5]
SPEED
23 June - 1 August, 1968
25 meters
0
SPEED (cm/sec)
10-
SPEED
23 June - 1 August, 1968
50 meters
LLI
5—
14.1
111
Ll
10
n
20
SPEED (cm/sec)
30
80-
0
4
40
236r
-40-
25
50 ,IJUL
rn
00
63
30
SPEED
23 June - 9 July, 1968
75 meters
0
10
20
30
SPEED (cm/sec)
30-
SPEED
22 July - 1 August, 1968
75 meters
0
1
10
1
SPEED (cm/sec)
1
20
40
64
I
I
I
I
1
I
I
-40
23 June - 8 July, 1968
75 meters
65
►
40
-40
40
►
4
23 July - 31 July, 1968
75 meters
-40
66
40-
TEMPERATURE
22 June - 3 July, 1968
25 meters
30-
O
20-
Lu
10-
6
-17
TEMPERATURE (°C)
60-
TEMPERATURE
22 June - 10 July, 1968
50 meters
20-
0
9
6
TEMPERATURE (°C)
TEMPERATURE
23 June - 3 July, 1968
25 meters
I0
6
23 Ju?e
1968
1 25 1
1
1 30 1 1July 1
TEMPERATURE
23 June - 9 July, 1968
50 meters
6
23 Ju e
1968
1
25
1
3
1
1July
1
68
TEMPERATURE POWER SPEC TRUM
22 June - 3 July, 1968
25 meters
100
90% confidence interval
I
10
0.1
0.01
0
0.20
0:10
FREQUENCY (cyc/e/hd
TEMPERATURE POWER SPEC TRUM
22 June - 10 July, 1968
50 meters
10
90% confidence interval
10
q)
N
0
0.1
0.010
0.10
0.20
FREQUENCY (cyc/e/hr)
70
9-/O •
150 -
9-5
9-/
10
1
1
25 m
/ 8-25
50-
••8-20
50 m
50-
50
PROGRESSIVE VECTOR DIAGRAMS
Symbols indicate 0000 GMT on successive days
DB 7: 44 50.9'N, 124 12.9'W
71
1968 INSTALLATION D
Position: 44°50. 9'N, 124°12.9'W, DB 7
Depth of Water: 100 meters
Set at 1530 GMT 1 August 1968 by R/V YAQUINA
Retrieved at 2130 GMT 11 September 1968 by R/V CAYUSE
Data Interval: 1530 GMT 1 August - 1840 GMT 11 September 1968
Instrumentation
Current meters and a thermograph were placed at depths
of 25, 50, and 75 meters as follows:
Depth
25 m
50 m
75 m
Histogram Current
Thermograph
Meter Serial No.
Serial No.
3160090
3160054
3810019'
5310057
14600089
Current meters cycled every 20 minutes; thermographs cycled
every 10 minutes. Speed and direction calibration for current
meter at 75 meters is in question.
72
10-
DIRECTION
1 - 20 August, 1968
25 meters
1
0
-f
180
I
I
360
DIRECT/ON (degrees)
20-
DIREC TION
1 August - 11 September, 1968
50 meters
Y.-
0
180
D/RECT/ON (degrees)
360
73
10-
SPEED
1 - 20 August, 1968
25 meters
5-
0
10
SPEED (cm/sec)
7.5-
SPEED
1 August. - 11 September, 1968
50 meters
r
0
F
20
SPEED (cm/sec)
40
74
1
)
\
v
-40-
1 - 19 August, 1968
25 meters
80-
0
40
V
Ct
o
-40
4
-40
1 August - 10 September, 1968
50 meters
76
801MM,
60-
TEMPERATURE
1 - 10 August, 1968
50 meters
<.)
40-
•••••■
u 20k
L
6
I
7
I
8
TEMPERATURE (°C)
9
TEMPERATURE
2 - 9 August, 1968
50 meters
10
6
2 Aug.,
1968
78
I00
90% confidence interval
I0
0.1
0.01
00.10
0.20
FREQUENCY (cyc/e/hr)
TEMPERATURE POWER SPECTRUM
1 - 10 August 1968
50 meters
79
WINDS
Two kinds of wind data have been included here: observed winds
measured at the United States Coast Guard observation tower north of
the entrance to Yaquina Bay, and geostrophic winds. The geostrophic
winds were calculated from pressure charts prepared by the Northwest
Regional Forecast Center of the U. S. Weather Bureau. Calculations
were made for the region near 45°N, 125' W, at six-hour intervals. The
Yaquina Bay winds were measured every four hours. The graphs shown
here coincide in time with the 1967 and 1968 current meter installations,
and were made by filtering the original wind series through a low-pass
taper with a half-power point at 36 hours.
Also included are tables that show changes in water temperature
and associated changes in the geostrophic wind. The temperatures
were recorded at 20 meters in 1967, and at 25 meters in 1968.
Both the tables and the wind plots were taken from Fisher (1970).
80
40—
20
-20
U- Component of Geostrophic Wind
-40—
O
V- Component of Geostrophic Wind
40 —
20
U - Component of Observed Wind
-40 —
40—
V - Component
-40 —
I
4
May
1
7
1
10
13
I
16
19
22
25
I
28
of Observed Wind
31
3
June
6
9
12
15
18
21
Tapered Wind Components (May - June 1967)
24
27
30
V- Component of Geostrophic Wind
40
20
Alk.41e, 46.a. 1►/&,,,,,
lir A ,
ilia
-20
40—
0000
I-1
April
V - Component of Observed Wind
I
4
I
7
I
10
I
13
I
16
I
19
I
22
I
25
1
28
i
1
May
i
4
I
7
I
10
I
13
I
16
i
19
I
22
I
25
I
28
I
31
I
i
3
June
I
6
Tapered Wind Components (April - June 1968)
I
9
I
12
1
15
i
18
I
20
I
24
I
27
I
30
V - Component of Geostrophic Wind
V- Component of Observed Wind
480o 0
-
1
I
I
3
July
6
1
9
12
15
18
21
24
27
30
2
August
5
--I–
8
t
11
+
14
--f
17
20
23
26
29
I
4
September
7
Tapered Wind Components (July - September 1968)
10
13
16
19
22
25
28
30
TABLE II-A
Changes in Temperature Associated with Changes in Wind Components
DB 5 1967
Period of Temperature Change
Beginning Date
and
Duration (Days)
Description
Period of Major Wind Change
U.
Direotcon and
Maximum Velocity
Beginning Date
and
Duration (Day s)
V.
DirectTon and
Maximum Velocity
Temperature Profile
Beginning Date
and
Duration (Days)
Date
Description
1910
May 7 4*
(3)
Slightly
Decreasing
East
7 kte.
0000
May 1
(8 1/2)
North
20 kts.
0000
May 1
(9 3/4)
0245
May 10
Small vertical temperature
gradient. No thermoclina.
1900
May 10
(2)
Increasing
West
13 kts.
1200
May 9
(4 1/3)
South
8 kte.
1800
May 10
(11/12)
1528
May 12
Thermocline from
surface to 35 s.
1800
May 12
(13 3/4)
Decreasing
East
12 kts.
2000
May 13
(6 1/6)
North
17 kts.
1600
May 11
(8 1/3)
1200
May 26
(2 1/2)
Slightly
Increasing
West
3 kts.
0000
May 20
(4 5/8)
South
6 kts.
0000
May 20
(2 5/8)
0000
May 29
(3/4)
Slightly
Decreasing
East
14 kts.
1500
May 24
(1 3/4)
North
22 kts.
1500
May 22
(4 1/4)
1800
May 29
(1 1/2)
Increasing
West
21 kts.
0900
May 26
(5 1/8)
South
21 kts.
2000
May 26
(3 5/12)
0600
May 31
(3 1/2)
Decreasing
East
5 its.
1200
May 31
(1 1/2)
North
27 its.
0600
May 30
(3 1/6)
2140
June 2
1700
June 3 .
End of
Temperature
Record
0000
June 2
1000
June 2
* Tapered temperature record does not include this time.
Description is made of untapered temperature record.
Thermooline from
surface to 10 m. Small vertical
temperature gradient below 10 e.
TABLE II-B
Changes in Temperature Associated with Changes in Wind Components
DB 7 1967
Period of Ne;cor Wind Change
Period of Temperature Change
Beginning Date
and
Duration (Days),
Description
Ug
Direction and
Maximum Velocity
Beginning Date
and
Duration (Days)
V
Direction and
Maximum Velocilz
Temperature Profile
noginning Date
and
Duration (Days)
2120
May 7•
(2 7/8)
Slightly
Decreasing
East
7 kta.
0000
May 1
(8 1/2)
North
20 kts.
0000
1800
May 10
(3)
Increasing
West
13 kts.
1200
May 9
(4 1/3)
South
8 kts.
1800
(8 1/2)
May 13
Slightly
Decreasing
East
12 kts.
2000
May 13
(6 1/6)
North
17 kta.
1600
0600
May 22
(1)
Slightly
Increasing
West
3 kts.
0000
May 20
(1 5/12)
South
6 kts.
0000
0600
May 23
(1 1/4)
Slightly
Decreasing
East
10 kts.
1000
May 21
(1 7/12)
North
23 kts.
0000
May 21
(1 5/8)
1200
May 24
(3/4)
Slightly
Increasing
West
1 kt.
0000
May 23
(1 5/8)
North
Minimum 9 kts.
1500
May 22
(2 7/8)
0600
May 25
(1)
slichtiv
Decreasing
East
14 Eta.
1500
May 24
(1 3/4)
North
22 kts.
1200
May 25
(1 1/3)
0600
May 26
(4 1/2)
Increasing
West
21 kta.
0900
May 26
(5 1/8)
South
11 kts.
2000
May 26
(3 5/12)
1800
May 30
(4)
Decreasing
Fast
1200
Nay 31
(1 1/2)
North
27 kts.
0600
Ma y 30
(3 1/6)
1800
June 3
(4 1/3)
Increasing
West
10 kts.
0000
June 2
(1 1/6)
1000
June 2
(1 5/6)
0400
June 3
0600
June 4
1800
0230
June 8•
5 kts.
End s,,
TemperatIre
Record
• Tapered temperature record does not include this time.
Description is made of untapered temperature record.
North
Minimum 2 kts.
May 1
(9 3/4)
May 10
(11/12)
Date
Description
0153
May 10
Small vertical temperature
gradient. No thermocline.
1645
May 12
Weak thermocline from
surface to 20 m.
2222
June 2
Shallow thermocline,
surface to 15 m. Small vertical
temperature gradient below 15 m.
May 11
(8 1/3)
May
(1)
20
Period
TABLE II-C
Changes in Temperature Associated with Changes in Wind Components
DB 7 1968
of
Temperature
Be g innin g Date
and
Duration (Days)
Period of rialor "Wind Chancre
Change
U7
Description
Direction and
Maximum Velocity
Variable
West 20 kts.
East 16 kts.
Temperature Profile
Seginning Date
and
Duration (Days)
17
Direction and
Maximum Velocity
0000 April 17
(25)
North
24 kts.
2100 April 4
Beginning Date
and
Duration (Days)
2020
Apri1.17.
(32 1/6)
Slightly
Decreasing
0000
May 20
(1 1/2)
Slightly
Increasinp
West
16 kts.
0000
May 12
(4 5/12)
South
14 kts.
2000
May 12
1200
May 21
Slightly
Decreasing
Fast
6 kts.
1000
May 16
(2 7/8)
North
10 kts.
2000
May 16
(2)
0600
May 22
(2 1/4)
Increasing
West
13 kts.
0700
May 19
(2 3/4)
SoutO
13 kts.
2000
May 18
(4 1/6)
1200
May 24
Slightly
Decreasing
Mast
10 kts.
1200
May 24
(11/12)
South
Minimum 5 kts.
0000
(3/4)
May 23
(1 1/4)
0600
May 25
(1/2)
Slightly
Increasing
West
6 kts.
1000
May 25
(3/4)
South
8 kts.
0600
May 24
1800
May 25
(1 1/4)
Decreasing
Mast
6 kts.
0400
May 26
" (3/4)
North
13 kts.
0300
May 25
(1)
0000
May 27
(3/4)
Slightly
Increasing
West
13 kts.
2200
May 26
(1 1/3)
South
0 kts.
0400
May 26
(1 5/8)
1800
May 27
(1)
Decreasing
East
5 kts.
0600
ray 28
(2 1/12)
North
22 kts,
1900
May 27
(2 1/2)
1800
May 28
Ptsi of
Temperature
Becord
0800
May 20
0800
Say 30
(3/4)
(38)
Description
Date
Small vertical
temperature gradient.
0720
April 19
0315
May 25
Thermocline from
10 m. to 50 m.
1356
May 27
Strong thermocline from 10 m.
to 30 m. Small vertical
temp erature gradient below 30 m.
(4)
(7/8)
86
PERSONNEL
Drs. June G. Pattullo and Robert L. Smith were the principal
investigators for this project. Mr. R. Dale Pillsbury was responsible
for instrument preparation, installation, and recovery. Data processing
and first-order analysis operations were performed by Miss Lillie Muller,
Mr. Nathan Keith, Mr. Mark Ebersole, and Mr. Joseph Bottero. Mr.
David Cutchin assisted with instrument calibration and preparation, and
wrote the error-detection computer programs. The smoothed plots of
temperature and current velocity were made with a low-pass filter
designed by Dr. C. N.K. Mooers, who also devised the prediction equation
used in the error detection programs. The figures were drafted by Mr.
William Gilbert and Mr. Ronald Hill. This data report was assembled
and written by Miss Marilynne Hakanson, Joseph Bottero, and Dale
Pillsbury.
ACKNOWLEDGEMENTS
This work was begun under Grant GA 331 and has been continued
under Grant GA 1435, both from the National Science Foundation. The
National Science Foundation provided ship support under Grant GA 295.
It also provided five full-time assistants: one, March 1967 to the
present; one, March through September 1967; one, September 1967
through June 1968, September 1968, and April through June 1969; one,
August and September 1968 and June 1969; and one, September 1969 to
the present. Assistance in computer programming was furnished
April 1968 through September 1969. A boat operator for data collection
was supported March 1967 through February 1968. The National Science
Foundation also provided three students working on an hourly basis:
one, April 1967, August 1967 through May 1968, and March 1969; one,
June 1967 through May 1968; and one, September 1969 to the present.
This research was also supported by the Office of Naval Research
through contract 1286(10) and N00014-67-A-0369-0007 under Project
NR 083-102.
87
REFERENCES
Barstow, Dennis, William Gilbert, and Bruce Wyatt, February 1969.
Hydrographic Data from Oregon Waters 1967. Data Report #35,
Dept. of Oceanography Ref. 69-3, Oregon State University.
Barstow, Dennis, William Gilbert, and Bruce Wyatt, November 1969.
Hydrographic Data from Oregon Waters 1968. Data Report #36,
Dept. of Oceanography Ref. 69-6, Oregon State University.
Braincon Corporation, 1965. Type 316 Histogram Current Meter,
Instruction Bulletin.
Collins, C. A. , 1968. A description of measurements of current velocity
and temperature over the Oregon continental shelf, July 1965 February 1966. Ph. D. Thesis, Oregon State University, Corvallis.
Collins, C. A. , H. C. Creech and June G. Pattullo, 1966. A Compilation
of Observations from Moored Current Meters and Thermographs;
Volume I: Oregon Continental Shelf, July 1965 - February 1966.
Data Report #23, Dept. of Oceanography Ref. 66-11, Oregon State
University.
Fisher, C. W. , 1970. A Statistical study of winds and sea water temperatures during Oregon coastal upwelling. M. S. Thesis. Oregon
State University.
Mooers, C. N. K. , 1970. The Interaction of an internal tide with the
frontal zone of a coastal upwelling region. Ph. D. Thesis. Oregon
State University.
Mooers, C. N. K. , L. M. Bogert, R. L. Smith, and June G. Pattullo, 1968.
A Compilation of Observations from Moored Current Meters and
Thermographs (and of Complementary Oceanographic and Atmospheric Data); Volume II: Oregon Continental Shelf, August - September
1966. Data Report #30, Dept. of Oceanography Ref. 68-5, Oregon
State University.
Pillsbury, R. D. , R. L. Smith, and R. C. Tipper, 1969. A Reliable lowcost Mooring System for Oceanographic Instrumentation. Limnol.
Oceanogr. 14: 307-311.
Sunblad, Robert L. , 1965. The Histogram Current Meter. Instrument
Society of America Conference Reprint, 6 pp.
88
APPENDIX
PROCESSING THE DATA
The data processing operation is divided into two phases: error
detection, and data presentation. All of the thermograph and current
meter data collected by the Coastal Oceanography Group are routinely
subjected to both phases. The procedure has been automated and much
of the work is done by the computer. The error detection routines will
be described in some detail below. The data presentation phase will be
sketched briefly.
Error Detection
Both the thermographs and the current meters record on photographic
film. The measurements are set down in analog form, as lines or arcs
of circles or dots whose characteristics indicate speed, temperature,
direction, etc. Reading the film is the most time-consuming portion of
the processing. Most of the 1967-68 data were read "by hand": that is,
the human film reader measured each quantity of interest by eye, and
recorded the measurements with pencil and paper. These numbers were
then punched onto cards and read into the computer. A few of the current
records were digitized automatically with the aid of a device that allows
the film reader to enter the measurements directly into magnetic disk
storage.
Once digitized, the data were checked for smoothness. Each measured
value was compared with a predicted value based on the behavior of the
record near the point in question. The underlying philosophy is that the
ocean and its measurable characteristics are basically continuous and
that discontinuities and unusually high rates of change are to be regarded
with suspicion. Isolated values in the current meter and thermograph
records can sometimes be traced to equipment malfunctions or to errors
in reading the filth. In other cases, no apparent cause can be discovered
and a decision must be made whether to accept the record as it stands,
or change it. If the anomaly is large, the decision is often to smooth the
record. The prediction process itself, by which anomalous points are
located, and the derivation of the prediction equation, are described in
Appendix II of Mooers et al. (1968).
The smoothness test is the only error test applied to thermograph
records. Current meter records offer several additional opportunities
for checks of internal consistency. An example is the comparison of the
length of the speed arc with the distance between successive beginnings
of arc. This test, together with several others performed on the current
records, serves mainly to detect film-reading errors.
89
Figure A-1 shows the initial processing and error detection procedure for current meter data. This figure is followed by a series of
computer program descriptions. The programs are those used during the
processing. The descriptions were originally prepared as standard program documentation, and are included here for the light they shed on the
error detection procedure.
Figure A-2, which follows the program descriptions, shows the
initial processing and error detection procedure for thermograph data.
The smoothness test is performed by a computer program very much
like SERDET 5 (which checks the smoothness of current records) and no
separate description of it has been included here.
Data Presentation
The final product of the error detection process is a "clean" data
file, which is permanently stored on magnetic tape. Two files are
produced for each current record: a raw file and a processed file. The
raw file contains the analog quantities recorded by the meter: arc lengths,
beginnings of arc, etc. Each line of the processed file contains a speed
in cm/sec, a direction, the corresponding U and V components, the date
and hour at which the measurements were made, and assorted useful
numbers. Both files are "clean"; that is, both have been subjected to
error detection procedures. Only one data file is produced for each
thermograph record; each line of this file contains a temperature and
the date and hour at which it was recorded.
To make the data accessible, a series of notebooks have been prepared, one for each temperature or current record. The temperature
notebooks each contain
1.
A line-by-line printout of the "clean" data file.
2.
A temperature frequency histogram.
3.
A plot of temperature versus time.
4.
A plot of low-passed temperature versus time.
Each current notebook contains
1.
A line-by-line printout of the (error free) raw data file.
2.
A printout of the processed data file.
90
3.
Frequency histograms for speed and direction.
4.
A progressive vector diagram.
5.
Plots of U and V versus time.
6.
Plots of low-passed speed, U, and V versus time.
All the items listed were produced by the computer, including the
plots. Most of the low-pass plots were made with the 121-point CosineLanczos filter described in Appendix III of Mooers et al. (1968). The
characteristics of this filter and the other filters used are such that in
the low-passed series, frequency components with periods greater than
about 8 hours have been preserved undiminished. Those with periods
between 8 and 4 hours have been attenuated, and those with periods
shorter than 4 hours have been excluded entirely.
91
Log book
Read the film and store the
digitized raw data on magnetic
disk storage.
Error detection: Compare observed
arc with computed arc, check smoothness of arc length. Programs:
GOOF6 and SERDET5.
V
Check film,
correct data
•
Error detection: Check for angles
greater than 360°, compare observed
with computed arc length, and check
the sequence of pseudo-velocity
vectors for smoothness. Programs:
CUMSAD7 and SERDET4.
If
V
Check film,
correct data
necessary
V
Error detection and finalization:
Repeat the tests of the preceding
stage. Convert arc length into speed,
U and V. Programs: CUMSAD4,
SERDET4.
"Clean" data
ready for analysis
Figure A-1. Error detection procedure for current meter data.
92
TITLE:
GOOF6
SOURCE LANGUAGE: FORTRAN IV
SOFTWARE:
OS-3
ORIGINATOR:
D. Cutchin
ABSTRACT:
This is an error detection routine for digitized
current meter data. Two items are checked: the
difference between observed arc length and computed
arc length, and the smoothness of the sequence of
unadjusted computed arc lengths. (Current speed,
as measured by the current meter, is registered
as an arc of a circle on photographic film. The
length of the arc is an indication of the current speed.
Observed arc length is the actual length, in degrees,
of the indicator arc as it appears on the film; computed arc length is the adjusted difference, in degrees,
between the beginnings of successive arcs. The
nature of the adjustment is described below.) If the
absolute value of (observed length) - (computed
length) is larger than a computed criterion, an error
message is given. The smoothness test is optional
and is performed by the subroutine SERDET5, which
is described elsewhere. GOOF6 is run from the
teletype.
INPUTS: The program is conversational, and the items listed below in
all capitals are questions asked by the teletype.
SMOOTHNESS TEST REQUIRED? Enter 0 for no, 1 for yes.
INPUT LUN, Enter the number of the logical unit to which the data
file has been equipped. Each data record should contain,
in this order, Date, Hour, Observed arc length, and
Beginning of arc.
INPUT FORMAT Enter 40 or fewer characters, including right
and left parentheses.
OUTPUT LUN
WINDOW This is the test criterion for the first 4 points. If the
absolute value of (observed arc length) - (computed arc length)
is greater than WINDOW, an error message results on the
93
output lun. After the first 4 points the criterion for each
succeeding point is one-half the average of the 3 preceding
observed arc lengths.
FUDGE Computed arc length is set equal to B 2 - B 1 + A + FUDGE,
where B 1 and B 2 are two successive beginnings of arc, A
is an adjustment related to film advance effects, and FUDGE
accounts for systematic bias, if any, introduced by the
person who read the film. The unadjusted computed arc
length (which is optionally checked for smoothness by
SERDET5) is just B 2 - B1.
OUTPUT: Each time the test criterion is exceeded, one line of information
is written on the output lun. This line contains all of the inputs
for the point in question, as well as the computed arc length
and the test criterion. The output of SERDET5 is described
elsewhere.
94
TITLE:
SERDET5
SOURCE LANGUAGE: FORTRAN IV
SOFTWARE:
OS-3
ORIGINATOR:
D. Cutchin
ABSTRACT:
SERDET5 is a subroutine called by GOOF6. Its
purpose is to test a sequence of unadjusted computed arc lengths for smoothness. Unadjusted
computed arc length is the quantity AB B 2 - B1,
where B1 and B2 are two successive beginnings
of arc, measured in degrees. Smoothness is tested
by comparing each actual value of AB with a predicted value. The predicted value is a weighted
average of the 3 preceding and 3 succeeding actual
values:
+ AB. )
+ OB.
B. ) - 0.3(AB.
= 0.75(AB.
1+2
1-2
1-1
1+1
L AB. +)
+ 0. 05(AB.
13
1-3
If the absolute value of (predicted) - (actual) is
greater than a computed criterion, an error message
results on the teletype. The criterion, which
changes from point to point and depends on the
variability of the sequence itself, is described
below.
INPUTS: The program is conversational, and the items listed below in
all capitals are questions asked by the teletype.
FENSTER This is the test criterion for the first 31 points.
NUMBER OF STANDARD ERRORS Suppose N is entered for this
input. Then for all points after the 31st the test criterion is
N times C, where C is the average value of the 25 immediately
preceding differences. That is,
25
1
(predicted) - (actual)
=
—
C
i
25
j=1
OUTPUT: Each error message contains the date, the hour, the actual and
predicted values (of unadjusted computed arc length), and the
quantity C defined above.
95
TITLE:
CUMSAD7
SOURCE LANGUAGE: FORTRAN IV
SOFTWARE:
OS-3
ORIGINATORS:
D. Cutchin, L. Muller
ABSTRACT:
This is an error detection routine for digitized
current meter records. The meter records current
speed on photographic film as an arc of a circle; the
length of the arc indicates speed. Current direction
is also recorded as an arc; in this case the midpoint
of the arc (or its brightest point if there is one) is
taken as the direction of the current. In addition,
meter tilt is recorded. The present program reads
tilt magnitude, tilt direction, the min, mid, and
max current direction values, the length of the speed
arc (in degrees), and the value of 0 at the beginning
of the speed arc (0 is measured counterclockwise
from the bottom of each film frame). Each of these
is checked for possible errors. If the tilt direction is
greater than 360°, or if any of the three current
direction values is greater than 360°, or if the speed
beginning-of-arc is greater than 360°, an error
message results. An error message is also given
if the length of the direction arc is greater than 360°.
The observed and computed lengths of the speed arc
are compared, just as in GOOF6 (q.v.), and an error
message results if their difference is too large.
Finally, pseudo-U and pseudo-V current components
are calculated. (They are pseudo because the individual meter calibration parameters and scale factors
are not used.) The subroutine SERDET4 (q. v.) then
analyzes the pseudo-vectors for smoothness and gives
an error message if they are not smooth enough.
CUMSAD7 is run from the teletype.
INPUTS: The program is conversational, and the items listed below in all
capitals are questions asked by the teletype.
INPUT LUN The data file equipped to this lun should be terminated
by an end-of-file. Each line should contain, in order, the date,
hour, tilt magnitude, tilt direction, min, mid (or brightest),
and max current directions, speed arc length, and speed
beginning-of-arc.
96
ERROR MESSAGE ON LUN Enter the number of the logical unit
that is to receive the error messages.
FUDGE Computed arc length is set equal to B 2 - B 1 + A + FUDGE,
where B 1 and B 2 are two successive beginnings of arc, A is
an adjustment related to film advance effects, and FUDGE
accounts for systematic bias, if any, introduced during the
film reading process.
FORMAT INDICATOR This parameter selects an input format.
Enter 1 if the data were hand-read, 2 if they were read with
the automatic digitizer, and 3 otherwise. If 1 or 2 is entered
a special, wired-in format will be used. If 3 is entered the
next question is asked.
FORMAT Skip one space and enter the input format, using 40 or
fewer characters. This question is not asked unless the
answer to the preceding question is 3.
OUTPUT: Each. error message contains the date and hour of the suspect
point, its value, certain other parameters in some cases, and
in some cases a diagnostic label that indicates the nature of
the error.
97
TITLE:
SERDET4
SOURCE LANGUAGE: FORTRAN IV
SOFTWARE:
OS-3
ORIGINATORS:
D. Cutchin, L. Muller
ABSTRACT:
SERDET4 is a subroutine called by programs of the
CUMSAD series. Its purpose is to check a sequence
of current velocity vectors for smoothness. The
principal inputs to the routine are speed, U, and V.
(U and V are, respectively, the eastward and northward components of the velocity vector; speed is
its modulus.) At each data point predicted values
for U, V, and speed are computed by taking a
weighted average of the 3 preceding and 3 succeeding
values. The predicted value of U is
U.
0. 75(U.
+ U. ) - 0.3(U.
+ U. )
1-1
1+1
1-2
1+2
+ O. 05(U.
+ U. )
1+3
1-3
and similarly for V and speed. The modulus of the
vector difference between the observed and predicted
velocities is then computed, and if it is larger than
a calculated criterion, an error message results.
An error message is also given if the difference between predicted and measured speed is too great.
INPUTS: The program is run from the teletype. The items listed below in
all capitals are questions asked by the teletype.
FENSTER IN CM PER SEC No error detection is done on the first
3 points of the series. For points 4 through 28 the error
criterion is FENSTER: if (predicted) - (observed)
FENSTER, an error message is printed.
NUMBER OF STANDARD ERRORS Suppose N is entered for this input. The error criterion for the 29th and all subsequent points
is N times C, where C is the average of the 25 preceding
differences:
\25
Ci=25
i=1
(predicted) - (observed) . .
i-j
98
OUTPUT: Each speed error generates a line of output containing the
date, hour, observed speed, the absolute value of predicted
speed minus observed speed, and the criterion value. Each
vector error produces a line containing the date, hour, observed speed, observed direction (an input to SERDET4 from
the calling program), the modulus of the difference between
the observed and predicted vectors, and the criterion value.
These are written on an output lun specified by the calling
program.
99
TITLE:
CUMSAD4
SOURCE LANGUAGE: FORTRAN IV
SOFTWARE:
OS-3
ORIGINATOR:
D. Cutchin
ABSTRACT:
CUMSAD4 is used during the final stages of the
basic processing of current meter data. It is
largely an error detection routine and performs
all the tests described for CUMSAD7 (see the
description of CUMSAD7). It differs from CUMSAD7
in that the vector smoothness test (performed by
the subroutine SERDET4) operates on actual current
vectors rather than pseudo-vectors. Current speed
is calculated from a linear calibration relation of
the form Speed = a + bx where a and b are calibration
constants and x is the unadjusted computed arc
length (see the description of SERDET5 for a definition
of this term). Current direction is set equal to the
measured direction plus an input compass correction.
In addition to writing error messages, CUMSAD4
provides a final output file containing (at each point
of the series) speed, U, V, direction, and several
other useful quantities. The program is run from
the teletype.
INPUTS: The program is conversational, and the items listed below in
all capitals are questions asked by the teletype.
SERIES NUMBER Enter an arbitrary interger to identify the job
or the data file. It will appear in each line of the final output
file.
INPUT LUN The input lun must be equipped to a file containing date,
hour, tilt magnitude, tilt direction, min, mid, and max
current directions, speed arc length, and beginning of arc.
OUTPUT LUN This is the lun for the final output file.
ERROR MESSAGE LUN A separate lun must be equipped to receive
the error messages.
SMOOTHNESS TEST REQUIRED? Enter 0 for no, 1 for yes. The
smoothness test is performed by the subroutine SERDET4.
100
DELTA TIME Enter the time interval, in minutes, between data
points.
COMPASS CORRECTION Enter the angle (in degrees) between true
north and magnetic north. This input rotates the axes with
respect to which U and V are computed. If g is entered, the
axes are rotated 8 degrees counterclockwise from magnetic
north, a feature that permits resolution into components other
than north-south, east-west - for example, longshore and
offshore.
GEAR Enter the step-down gear ratio of the speed sensor.
FUDGE This is a correction factor that accounts for systematic
errors in film-reading. See the description of GOOF6.
FORMAT INDICATOR This parameter selects an input format.
Enter 1 if the data were hand-read, 2 if they were read with
the automatic digitizer, and 3 otherwise. If 1 or 2 is entered
a special, wired-in format will be used. If 3 is entered the
next question is asked.
FORMAT Skip one space and enter the input format, using 40 or
fewer characters. This question is not asked unless the
answer to the preceding question is 3.
OUTPUT: Each error message contains the date and hour of the suspect
point, its value, and in some cases various other useful numbers.
The output file contains (for every data point) date, hour, speed,
U, V, direction, the length of the direction arc, tilt magnitude,
tilt direction, the file or job ID number, sum U, sum V, beginning of arc, and a line number. Sum U and sum V at the
ith point are
U.
(sum U).
i=1
i
(sum V) =>
V.
i =1
These are used subsequently in making progressive vector
diagrams.
101
Log book
Read the film and store the
digitized raw data on magnetic
disk storage
Error detection: Check the temperature series for smoothness.
Program: SERDET.
no
yes
"Clean" data
ready for analysis
Figure A-2. Error detection procedure for thermograph data.
102
DISTRIBUTION LIST (INITIAL)
Gross
YAQUINA
OSU Oceanography:
Biologists
Chemists
Internal to OSU
Pillsbury, Dale Mr.
Plank, William Mr.
Plutchak, Noel B. Mr.
Pittock, Henry Lt.
Pond, Steven Dr.
Quinn, William Dr.
Sakou, Tashitsugu Dr.
Small, Larry F. Dr.
Smith, Robert Dr.
Wyatt, Bruce Mr.
Zaneveld, Ronald Mr.
Barstow, Dennis Mr.
Beardsley, George Dr.
Bodvarsson, Gunnar Dr.
Bottero, Joseph Mr.
Bourke, Robert Mr.
Burt, Wayne V. Dr.
External to OSU
Caldwell, Douglas Dr.
Bowden, K. F.
Couch, Richard Dr.
Cartwright, D. E. Mr.
Curl, Herbert C., Jr. Dr.
Collins, Curtis A. Dr.
Cutchin, David Mr.
Cox, Charles S.
Cutshall, Norman Dr.
Csanady, C. S. Dr.
Detweiler, John Mr.
Denner, Warren Dr.
Dymond, Jack Dr.
Dobson, Hugh Mr.
Earle, Marshall Mr.
Dodimead, A. J. Dr.
Elliott, William P. Dr.
Duxbury, A. Dr.
Enfield, David Mr.
Fisher, Carl Lt.
Evans, Richard Mr.
Fofonoff, N. P. Dr.
Fowler, Gerald Dr.
Green,
Thomas Dr.
Frolander, Herbert F. Dr.
Griswold, Gale M,
Gilbert, William Mr.
Hopkins, Thomas Mr.
Gordon, Louis Mr.
Laurs, Michael R. Dr.
Hasse, Lutz Dr.
Longuet-Higgins, M. S. Dr.
Hakanson, Marilynne Miss
Maloney,
William Mr.
Heath, G. Ross Dr.
Morse, Betty-Ann Miss
Ho, A. Michael Mr.
Mortimer, C. H.
Iverson, Richard Mr.
Mysak, Lawrence Dr.
Kulm, L. D. Dr.
0' Brien, James J.
Marine Science Center (Weather Bureau)
Reid, R. D. Dr.
Mesecar, Roderick Dr
Stevenson, Merrit R. Dr.
Mueller, James Mr.
Stewart, R. W.
Muller, Lillie Miss
Still, Robert
Neshyba, S. N. Dr.
Swanson, Larry F. LCDR
Pattullo, June G. Dr.
Webster, Ferris Dr.
Pearcy, William Dr.
NSF
Themis- Computer Center (3 copi
UNCLASSIFIED
Security Classification
DOCUMENT CONTROL DATA - R & D
(Security classification of title, body of abstract and indexing annotation must be entered when the overall report is classified)
1. ORIGINATING ACTIVITY
28. REPORT SECURITY CLASSIFICATION
(Corporate author)
Unclassified
Department of Oceanography
Oregon State University
Corvallis, Oregon 97331
3.
2b. GROUP
REPORT TITLE
A compilation of observations from moored current meters and thermographs,
Volume III: Oregon continental shelf, May-June 1967; April-September 1968
4. DESCRIPTIVE NOTES (Type of report and inclusive dates)
Date Report - summary of 1967, 1968 current meter and thermograph data
5. AU THOR(S) (First name, middle initial, last name)
R. Dale Pillsbury, Robert L. Smith, June G. Pattullo
6. REPORT DATE
7a. TOTAL NO. OF PAGES
June 1970
102
8a. CONTRACT OR GRANT NO.
ONR 1286(10)
ONR N00014-67-A-0369-0007
6. PROJECT NO.
c.
7b. NO. OF REFS
10
9a. ORIGINATOR'S REPORT NUMBER(S;
Data Report No. 40
NR 083-102
96. OTHER REPORT NO(S) (Any other numbers that may be assigned
this report)
Reference 70-3
d.
10. DISTRIBUTION STATEMENT
Unlimited
11. SUPPLEMENTARY NOTES
12. SPONSORING MILITARY ACTIVITY
Ocean Science and Technology
Office of Naval Research, Code 481
Washington, D. C.
13. ABSTRACT
Time series of currents and temperatures taken by fixed arrays of selfrecording instruments moored on the Oregon continental shelf are presented
in graphical form. The data represent the periods from 6 May - 14 June 1967
and 1 April - 30 June 1968. Also included in this report are the observed and
geostrophic winds for the same period of time.
DD
FORM
1F
S/N 0101-807-6801
(PAGE
1)
UNCLASSIFIED
Security Classification
UNCLASSIFIED'
Securit y Classification
14
KEY
WORDS
LINK B
LINK A
R
ROLE
WT
ROLE
WT
Current meter data
Temperature data
Oregon waters
DDFO.RM661 4 7 3 ( BACK)
(PAGE 2)
UNCLASSIFIED
Security Classification
LINK C
ROLE
WT