Group 3 Log Book Falmouth Field Course 2011
Michelle Barnett
Christina Rowlins
Gareth Cheele
Ben Barton
Guy Hepden
Amelia Ballisat
Ed Gow
Rob Waters
Estuarine Practical
Bill Conway – 8:30 BST
28/07/2011
Going up the Fal Estuary
Weather
Sunny, warm, heavy breeze (large waves), 4/8 cloud cover, no ppt
Tides
Low water – 10:00 BST
High water – 16:00 BST
Neaps
Wind= SE
Roles
Michelle Barnett – Team leader
Chrissy Rawlins – Filtering and Trawling
Gareth Cheel – Filtering
Ben Barton – Filtering
Guy Hebden – Rosette
Amelia Ballisat – Scribe
Edward Gow – Rosette
Rob Waters – Rosette
The Plan
-Take ADCP across mouth along with CTDP measurements
-Take CTD measurements up estuary to give idea of water column structure
- Take water samples down the estuary and do samples at every other point + take trawls at
top, bottom and middle of estuary and keep ADCP running down the estuary
- Taking ADCP at middle + head horizontally also
-1 depth profile at centre channel of estuary at top, middle + bottom
-ADCP across the mouth from time 09:31 BST
Start – 50 008 562N 005 01 068W
End – 50 08 593N 005 02 429W
-
Depth: 7.9m
Distance from shore: 150m
End time 09:45 BST
Salinity calibration -= already calibrate otherwise taken bottles and measure salinity
CTD Test
Depth = 10.9m Time = 09:14 BST
First = 50 08 584N 005 01 210W
At 0m, 4m, 8m actual N/A
Always take DO first so don’t let air in
1st CTD = Mouth edge
Lat – 50 08 602N
Long – 005 02 405W
CTD down to 6.5m actual = 6.97m
Depth = 8.3m
Sample taken at 1m
Time =09:47 BST
ADCP transect 4 = TEST = NOT NEEDED
ADCP transect 5 started 09:54 BST = not transect (just continuing)
2nd CTD
Middle mouth = Conway_6_28_109_1 (file name)
Lat – 50 08 570N
Long – 00501.586W
Depth = 12.3m
Time= 09:58 BST
Salinity = 34.6
Temperature = 13.7
CTD taken at surface, 5m and 10m (actual = 1.29m, 4.79m, 9.94m)
Zooplankton draw = 210um net
Phytoplankton = 60 um net
Location: 50 08.456N, 005 01.465W
Time = 10:27 – 10:32 BST
Depth = 22.7m
08820 = start reading
(Air in net so was redone)
Secchi disk = 50 08.470N, 005 01.536W
Time = 10.19
Depth 18.9m
Results = 9m
*Blown horizontally due to strong currents so it is possibly largely inaccurate.
Phytoplankton Trawl
In bottle 97
Lat:50 08.518N
Long: 005 01.473W
Time 10:33-10:38 BST
Depth: 18.7m
Start reading 08938 and end = 09059
Zooplankton Trawl
Bottle 1
50 08.519N, 00501.471W
Time 10:47-10:52
Depth: 20.8m
Start reading 09069, end = ?
End: 50 08.625N, 005 01.515W
CTD 3 – Edge of estuary (file: Conway_6_28_111_60)
Time: 10.58
150m from shore
50 08.558N, 005 01.053W
Depth = 6.2m
CTD down to 4m
Surface sample taken at 1.32m
CTD 4 - Mid, central estuary (messack Point) (file:Conway_6_28_1135_0)
Time – 11:30 BST
Depth – 26.8m
50 10.843N, 005 01. 711W
CTD down to : 20m
Salinity: 34.5
Temp 13.9
*No bottles taken. More saline at bottom = gone from well mixed to salt wedge = slightly
stratified
ADCP file names
1) March 17003r.000
2) March 17005r.000
CTD 5 (File:Conway_6_28_1222_5)
50 14.407N, 005 00.876W
Time = 12.17 BST
Temp = 16.2
Salinity = 31.6
Depth = 5.7
CTD to 3m
Bottle readings at 1,2,3m (actual = 3.09m, 1.95m, 1.14m)
*2m reading redone = bottle didn’t shut! Actual = 2.30m
Plankton net (same location as CTD 5)
50 14.408N, 005 00.875W
Time = 12:34-12:39 BST
Start number = 09676 End number = ?
Secchi Disk = Same location as CTD 5
3.5m Depth
Plankton net = REDONE
Did not work off back of pontoon so then it was towed behind Conway
Start position = 50 14.403N, 005 00.892W
Time: 12:38-12:43
Start number = 09699 End number 10324
Depth = 5.1m
SOG = 1.8 knots
Bottle number 95
Zooplankton net (bottle 2)
Start 50 14.385N, 005 01.900W
Depth = 5.2m
Time = 12:50 – 12:55
Start number = 10324 End number = 11193
End 50 14.257N, 005 01.041W
SOG =2.3 knots
CTD 6 (File: Conway_6_28_1317_23)
50 13.698N, 005 00.952W
Time: 13:05
Depth – 10.7m
Readings at 1m, 4m, 8m
Actual readings: 8.18m, 3.95m, 1.00m
Temperatue = 15.4
Salinity = 32.6
*CTD depth profile redone = computer did not save the data
ADCP Transect (Transect 6 across where 2 rivers meet ) (File: March17006r.000)
Start 50 13.664N, 005 01.013W
Time = 13:21
Depth = 1.5m SOG = 1.9 knots
End 50 13.682N, 005 00.915W (25m from shores
Time = 13:23
ADCP transect 7 (File: march17007r.000) back across
Start 50 13.676N, 005 00.928W
Time = 13:23
Depth = 6.1m SOG = 3.4 knots
Salinity = 33.3
Temp = 14.8
End 50 13.524N, 005 00.842W (123m)
Time = 13:26
ADCP Continuous (transect 8)*not a transect? (File: March17008r.00)
Time = 13:27
Depth = 4.5
Salinity = 33.7
Temp = 14.5
CTD 7 – (File: Conway_6_28_1352_40)
50 12.569N, 005 01.670W
Time: 13:46
Depth = 5.4m
Salinity = 33.9m
Temperature = 14.7
Readings = 1m, 2m, 3m, 4m, 5m
Actual = 1.16m, 1.92m, 3.1m, 3.96m, 4.94m
Phytoplankton Net (same location as above)
Start number = 11199 End number = 11552
Depth =7-9m
Start 50 12.569N, 005 01.670W
Time 14:09 – 14:13
SOG = 1.6knots
End 50 12.461N, 005 01.670W
CTD 8 (File:Conway_6_28_1438_47)
50 11.272N, 005 02.380W
Time = 14:52
Depth = 23.4m
Salinity = 34.5
Temp = 14.1
Readings = 1, 5, 10, 15, 20 (m)
Actual = 1.17m, 4.6m, 9.88m, 14.95m, 20.45m
*The CTD not directly down = angled = but doesn’t affect results. Third bottle didn’t work,
BUT not redone – no results.
ADCP Transect 9 (File: March17010r.000) (Across Messick Point)
Start point = 82m
Start 50 10.943N, 005 01.595W
Time = 14:47
Salinity = 34.6
Temperature = 13.9
End 50 10.562N, 005 01.461 W
Time = 15:01
SOG = 3.3 knots, 120m from shore
CTD 9 (File:Conway_6_28_156_25)
50 10.561W, 005 02.617W
Time= 15:04
Depth = 4m
Salinity = 34.3
Temp = 14.6
3m but actual was 3.15m
sample at 1m
CTD 10 (File:Conway_6_28_1515_4)
50 10.933N, 005 01.600W
Time = 15:13
Depth – 5.5m
Salinity – 34.6
Temp – 13.9
CTD to 4m but actual = 4.06m
Sample at surface = 0.141 (didn’t close = redo)
Time 15:15
50 10.935N, 005 01.596W
CTD 11 (File:Conway_6_28_1527_57
Depth = 29.6
50 10.859N, 005 01.755W
Time = 15.20
Salinity = 34.7
Temp = 13.6
CTD to 25m
Readings: surface, 5, 10, 15, 25. Actual: 1.36m, 4.28m, 9.51m, 15.08m, 25.11m
*Been blown off to 1 side!
Phytoplankton trawl = bottle 96
Start number = 11556
End number = 11604
Start lat: 5010.814N
Start long: 005 01.672W
Time: 1528 = 5 mins = 1533 end time
Salinity = 34.6
Depth = 28.7
Temp = 13.5
End lat = 50 10.926
End long = 005 01.839
Secchi disk = 9m
Time: 1540
Lat = 50 10.894N
Long 005 01.827W
Depth = 20.8
Salinity = 34.7
Temperature = 13.7
Zooplankton = bottle 3
Start number= 11604
End value = 12073
Start lat = 50 10.863N
Start long = 005 01.816W
Time = 1541
Temp = 13.7
Depth = 25.9
Salinity = 34.7
End lat = 50 10.955
End long = 005 1.901W
Time = 1546
CTD 12 Conway_6_28_162_22
Lat= 50 09.928
Long = 005 01.789
Time = 1557
Depth = 5.7
Temperature = 14.0
Salinity = 34.6
CTD down to 4m actual 4.28
Readings
Actual
1m
1.04m
3m
3.09
CTD (File:Conway 6_28_162826) - note: CTD broke all bottles were closed when they
shouldn’t have been
Lat = 50 09.633
Long = 005 02.378
Time = 16
Depth = 14.9m
Salinity = 34.7
Temperature = 13.9
CTD down to 16m but actual = 15.97
Readings
Actual
6/5/10/15m
14.7/10.05/4.84
Plankton trawl – bottle 90
Start latitude = 50 09.648
Start longitude = 005 02.337W
Start number = 12075
Time = 1611
Salinity = 34.8
Temperature = 13.9
Depth = 24.8
SOG? = 1.5
Redone as net got twisted
Start = 12102
Time:1612
End latitude = 50 09.582
End longitude = 005 02.546
Time: 1617
End number = 12293
Redo CTD Conway ( File:6_28_1651_23)
Latitude = 50 09.608N
Longitude = 005 02.340W
Time = 1643
Depth = 16m
Salinity = 34.6
Temperature = 14
CTD lowered to 15m however actual = 15.2
10m = 9.71m
5m=4.95m
Surface = 1.13m
*CTD still broken – unsure of sample depths*
Phytoplankton trawl = bottle 96
Start number = 11556
End number = 11604
Start lat: 5010.814N
Start long: 005 01.672W
Time: 1528 = 5 mins = 1533 end time
Salinity = 34.6
Depth = 28.7
Temp = 13.5
End lat = 50 10.926
End long = 005 01.839
Secchi disk = 9m
Time: 1540
Lat = 50 10.894N
Long 005 01.827W
Depth = 20.8
Salinity = 34.7
Temperature = 13.7
Zooplankton = bottle 3
Start number= 11604
End value = 12073
Start lat = 50 10.863N
Start long = 005 01.816W
Time = 1541
Temp = 13.7
Depth = 25.9
Salinity = 34.7
End lat = 50 10.955
End long = 005 1.901W
Time = 1546
CTD 12 (File:Conway 6_28_162_22)
Lat= 50 09.928
Long = 005 01.789
Time = 1557
Depth = 5.7
Temperature = 14.0
Salinity = 34.6
CTD down to 4m actual 4.28
Readings
Actual
1m
1.04m
3m
3.09
CTD 13 (File:Conway 6_28_162826) - note: CTD broke all bottles were closed when they
shouldn’t have been
Lat = 50 09.633
Long = 005 02.378
Time = 16
Depth = 14.9m
Salinity = 34.7
Temperature = 13.9
CTD down to 16m but actual = 15.97
Readings
Actual
6/5/10/15m
14.7/10.05/4.84
Plankton trawl – bottle 90
Start latitude = 50 09.648
Start longitude = 005 02.337W
Start number = 12075
Time = 1611
Salinity = 34.8
Temperature = 13.9
Depth = 24.8
SOG? = 1.5
Redone as net got twisted
Start = 12102
Time:1612
End latitude = 50 09.582
End longitude = 005 02.546
Time: 1617
End number = 12293
Redo CTD (File:Conway_6_28_1651_23)
Latitude = 50 09.608N
Longitude = 005 02.340W
Time = 1643
Depth = 16m
Salinity = 34.6
Temperature = 14
CTD lowered to 15m however actual = 15.2
10m = 9.71m
5m=4.95m
Surface = 1.13m
*CTD still broken – unsure of sample depths*
Lat
Station
1 50 08.602
2 50 08.570
Long
005 02.405
005 01.586
3
5
50 08.558
50 14.407
005 01.053
005 00.876
6
50 13.698
005 00.952
7
50 12.569
005 01.670
8
50 11.272
9 50 10.561
10 50 10.933
11 50 10.859
005 022.380
005 02.617
005 01.600
005 01.755
12 50 09.928
005 01.789
13 50 09.608
005 02.340
Depth
1
surface
5
10
DO
1
2
3
1
4
8
1
2
3
4
5
1
5
10
15
20
1
1
1
5
10
15
25
1
3
1
5
10
15
12
31
23
33
53
1
21
13
11
32
51
42
didn’t fire
43
22
41
2
no bottles
P
66
65
63
64
67
54
53
61
52
62
56
50
16
49
57
59
58
55
did
45
44
47
SI
11
12
7
22
10
20
15
13
6
21
16
19
28
3
5
26
25
30
not
27
14
18
Ch1
194
205
196
195
209
211
212
198
201
202
203
204
216
190
179
192
175
152
fire
174
151
166
Ch2
206
193
208
207
210
199
200
197
213
214
215
189
117
191
178
180
176 (dropped on floor)
164
51
41
35
42
36
38
37
43
46
39
40
29
17
9
32
23
33
2
4
1
24
8
161
160
159
157
148
173
156
184
162
169
171
149
147
158
145
146
155
185
150
186
172
170
163
183
165
Lab analysis 29/7/2011
Phosphate analysis
-
Make standard solutions with three replicates at 8 concentrations including blanks
Make reagent, make 100ml due to 78 samples
Add 1ml of reagent to each sample and mix
Leave for 1 hour
Put in U1800 spectrometer
Take 2 readings and average
Record data on sheet
Zooplankton analysis
-
Conventional methodology used to count zooplankton i.e. microscope and Bogarov
chamber to analyse 500ml samples
10ml500ml x50
Water sample = Rx0.3x0
Number m^3 = A/B
Chlorophyll analysis
The chlorophyll bottles were transferred asap to s freezer after collection aboard the Bill
Conway on the 8th June; thus preserved the samples. The following morning the samples
were ready to analyse as the action of freezing allowed the chlorophyll to be released from
the filter into the acetone solution instead of having to centrifuge the sample. Conventional
methodology was then used to calculate the concentration of the chlorophyll in each of the
samples.
To calculate the chlorophyll concentration in the water bottles:
(6/50) x value given by the flurometer where 50 was the volume of the filtered solution in ml
and 6 was the volume of acetone in ml.
NB: need to calibrate the fluorometer would normally use a known concentration of pure
chlorphyll a, approximately 90% acetone.
Offshore Boat – The Callista:
Date: 01/07/2011
Time: 7:30GMT start, 3:36GMT finish (NB all BST times converted to GMT by subtracting
an hour, and all equipment aboard The Callista worked on GMT).
Weather
Sunny, warm, calm, no precipitation and low to medium cloud cover.
Tides
Neaps, with LW at 10:26GMT, and HW at 16:13GMT.
Roles/Jobs:
Chrissy Rawlins – PSO
Michelle Barnett – Scribe and dry lab
Gareth Cheel – Equipment deployment
Ben Barton – Dry lab
Guy Hebden – Wet lab
Amelia Ballisat – Equipment deployment
Edward Gow – Wet lab
Rob Waters – Equipment deployment and shouter.
Plan:
- Using Niskin bottles on a rosette water samples were collected so DO, Silicate,
Phosphate, and Phytoplankton (Lugols) could be measured.
- Using a closing zooplankton net zooplankton samples were collected
- Using an ADCP water flow would be measured.
- Using a CTD with fluorometer and transmissometer, temperature, depth, salinity,
turbidity, and fluorescence by phytoplankton would be measured.
- Using a Secchi disk turbidity would be measured.
On the basis that a single profile using all of the above techniques to sample the water
column, would take ~45mins to complete, that Callista would travel ~10knots, and the first
station at Black Rock would take ~1hr 30mins to complete including travel from the Dock,
timings were estimated.
NB Time = Distance/Speed, where speed is in knots/nautical miles (nm) per hour, and
distance is in nm (1 nm = 1 degree of latitude).
Depart → 7:30 GMT
Arrive at Black Rock (station 1) → 7:45 GMT
Depart from Black Rock → 9:00 GMT
Arrive East Cardinal (station 2) → 9:30 GMT
Leave East Cardinal → 10:15 GMT
Arrive at station 3 (around 49o57N, 004o55W) → 10:45 GMT
Leave station 3 → 11:30 GMT
Arrive at station 4 (around 50o57N, 005o05W) → 12:00 GMT
Leave station 4 → 12:45 GMT
Arrive at station 5 (around 50o55N, 005o12W – off Lizard Point) → 13:15 GMT
Leave station 5 → 14:00 GMT
Back to Falmouth Dock → 15:30 GMT
The Aim of the survey was to find fronts offshore of Falmouth, therefore as a general rule of
thumb would have to travel ~4knots, and ultimately to answer the following question:
' How do vertical mixing processes in the waters off Falmouth affect, directly and indirectly,
the structure and functional properties of plankton communities?'
Station 1: Black Rock
Time: 7:47 GMT
Depth: 32.8m
Salinity: 35.2 PSU
Temperature: 13.9oC
Latitude: 50o08.677N
Longitude: 005o01.464W
CTD
Time: 8:02 GMT
Depth: 32.8m
Water Bottle Samples
Depth (m)
Surface
15
30
Depth (+ Niskin
bottle no.)
1.53 (8)
14.7 (6)
32.8 (2)
Niskin Bottle
Number Fired
8
6
2
Lugols
19
8
3
Actual Depth
(m)
1.53
14.70
32.70
DO
113
95
85
Salinity (PSU)
35.19
35.20
35.24
Bottle Numbers
P
Si
48
3
20
2
63
1
Temperature
oC
13.80
13.07
13.60
Chl 1
100
77
124
Chl 2
88
136
112
ADCP 1
Time: 7:47GMT start, 8:39GMT finish
Latitude: 50o08.677N to 50o08.428N
Longitude: 005o01.464W to 005o01.441W
NB: The ADCP was kept running while sampling station 1, but latitude and longitude
changed over the sampling time of station 1 due to the boat drifting – this applied to all other
stations.
File Name: Data_000r.000
Secchi Disk
Time: 8:30GMT
Depth: 9m
Latitude: 50o08.621N
Longitude: 005o01.478W
Zooplankton – Bottle 1
Time: 8:33GMT
Depth: 20m to the surface
Latitude: 50o08.621N
Longitude: 005o01.478W
NB: Mesh used was 200µm in size, and had an opening diameter of 60cm
NB2: The net was hosed down after brought onboard to displace plankton from the net into
the bottle.
ADCP 2 Transect 1
Time: 8:39GMT start, 9:19GMT finish
Latitude: 50o08.428N to 50o01.965N
Longitude: 005o01.441W to 005o00.775W
File Name: Data_001r.000
Station 2
Time: 9:19 GMT
Depth: 66.5 m
Salinity: 35.3 PSU
Temperature: 15.0oC
Latitude: 50o01.965N
Longitude: 005o00.775W
CTD
Time: 9:23 GMT
Depth: 63.0m
Water Bottle Samples
Depth (m)
Surface
20
35
Depth (+ Niskin
bottle no.)
1.42 (8)
19.67 (4)
34.36 (2)
Niskin Bottle
Number Fired
8
4
2
Lugols
95
11
28
Actual Depth
(m)
1.42
19.67
34.36
DO
76
87
112
ADCP 3
Time: 8:39GMT start, 9:56GMT finish
Latitude: 50o01.965N
Longitude: 005o00.775W
File Name: Data_002r.000
Secchi Disk
Time: 9:45GMT
Depth: 11m
Latitude: 50o01.641N
Longitude: 005o00.893W
Zooplankton – Bottle 2
Time: 9:47GMT
Depth: 10m to the surface
Latitude: 50o01.594N
Longitude: 005o00.964W
Zooplankton – Bottle 3
Time: 9:51GMT
Depth: 30m to 10m
Latitude: 50o01.594N
Longitude: 005o00.964W
ADCP 4 Transect 2
Time: 9:59GMT start, 10:16GMT finish
Latitude: 50o01.010N to 49o58.509N
Longitude: 005o01.383W to 005o01.135W
File Name: Data_003r.000
Salinity (PSU)
35.20
35.30
35.20
Bottle Numbers
P
Si
1
6
11
5
40
4
Temperature
oC
14.70
13.20
12.03
Chl 1
89
137
125
Chl 2
90
101
130
In Between Station 2 and 3 (CTD ONLY)
NB: on CTD data file each of the ‘inbetween’ stations were classed as separate stations i.e.
this station was classed as station 3.
Time: 10:16 GMT
Depth: 74.0 m
Salinity: 35.4 PSU
Temperature: 15.3oC
Latitude: 49o58.509N
Longitude: 005o01.135W
CTD
Time: 10:19 GMT
Depth: 70.0m
ADCP 5
Time: 10:16GMT start, 10:32GMT finish
Latitude: 49o58.509N to 49o58.143N
Longitude: 005o01.135W to 005o01.550W
File Name: Data_004r.000
Secchi Disk
Time: 10:28GMT
Depth: 14m
Latitude: 49o58.207N
Longitude: 005o01.540W
ADCP 6, Transect 3
Time: 10:17GMT start, 10:52GMT finish
Latitude: 49o58.509N to 49o55.268N
Longitude: 005o01.135W to 005o01.115W
File Name: Data_005r.000
Station 3
Time: 10:52 GMT
Depth: 79.4 m
Salinity: 35.4 PSU
Temperature: 15.9oC
Latitude: 49o55.268N
Longitude: 005o01.115W
CTD
Time: 11:02 GMT
Depth: 75.0m
Latitude: 49o54.861N
Longitude: 005o01.326W
NB: Latitude and Longitude taken again for deployment of CTD as Callista moved after
primary stop for station 3.
Water Bottle Samples
Depth (m)
Surface
25
35
Depth (+ Niskin
bottle no.)
1.68 (6)
24.30 (4)
34.20 (2)
Niskin Bottle
Number Fired
6
4
2
Lugols
5
1
4
Actual Depth
Temperature
Salinity (PSU)
oC
(m)
1.68
35.24
14.90
24.30
35.30
12.29
34.20
35.30
11.80
Bottle Numbers
DO
P
Si
Chl 1
Chl 2
48
29
9
78
166
97
45
8
126
140
86
31
7
114
102
ADCP 7
Time: 10:53GMT start, 11:35GMT finish
Latitude: 49o55.268N
Longitude: 005o01.115W
File Name: Data_006r.000
Secchi Disk
Time: 11:17GMT
Depth: 12m
Latitude: 49o54.647N
Longitude: 005o01.774W
Zooplankton – Bottle 4 Dude
Time: 11:24GMT
Depth: 20m to the surface
Latitude: 49o54.532N
Longitude: 005o02.015W
Zooplankton – Bottle 5 Dudettte
Time:11:29GMT
Depth: 31m to 20m
Latitude: 49o54.532N
Longitude: 005o02.015W
ADCP transect 4 (8)
Time: 11:35GMT start, 12:01GMT finish
Latitude: 49o54.451N to 49o56.301N
Longitude: 005o02.415W to 005o06.200W
File Name: Data_007r.000
Station 4
Time: 12:02 GMT
Depth: 74.6 m
Salinity: 35.4 PSU
Temperature: 15.6oC
Latitude: 49o56.265N
Longitude: 005o06.284W
CTD
Time: 12:05 GMT
Depth: 70.7m
Water Bottle Samples
Depth (m)
Surface
10
22
40
Depth (+ Niskin
bottle no.)
1.50 (8)
9.40 (6)
21.10 (4)
39.10 (2)
Niskin Bottle
Number Fired
8
6
4
2
Lugols
6
22
23
20
Actual Depth
(m)
1.50
9.40
21.10
39.10
DO
108
98
66
101
ADCP (9)
Time: 12:02GMT start, 12:27GMT finish
Latitude: 49o56.301N
Longitude: 005o06.200W
File Name: Data_008r.000
Salinity (PSU)
35.40
35.20
35.30
35.30
Bottle Numbers
P
Si
6
13
54
12
67
11
56
10
Temperature
oC
14.70
14.40
12.08
11.60
Chl 1
167
162
115
214
Chl 2
128
103
175
178
Secchi Disk
Time: 12:18GMT
Depth: 10m
Latitude: 49o56.105N
Longitude: 005o06.776W
Zooplankton – Bottle 6 Bob
Time: 12:25GMT
Depth: 25m to 10m
Latitude: 49o56.062N
Longitude: 005o06.982W
ADCP transect 5 (10)
Time: 12:02GMT start, 12:56GMT finish
Latitude: 49o56.301N to 49o57.149N
Longitude: 005o06.200W to 005o10.396W
File Name: Data_009r.000
In Between Station 4 and 5 (CTD ONLY)
Time: 12:56 GMT
Depth: 41.6 m
Salinity: 35.4 PSU
Temperature: 14.6oC
Latitude: 49o57.145N
Longitude: 005o10.400W
CTD
Time: 12:59 GMT
Depth: 32.0m
ADCP 11
Time: 12:56GMT start, 13:17GMT finish
Latitude: 49o57.149N to 49o57.708N
Longitude: 005o10.396W to 005o10.295W
File Name: Data_010r.000
FRONT: location - 49o57.123N, 005o10.337W?
In Between Station 4 and 5 (CTD ONLY)
Time: 13:14 GMT
Depth: 16.2 m
Salinity: 35.4 PSU
Temperature: 14.3oC
Latitude: 49o57.679N
Longitude: 005o10.325W
CTD 2
Time: 13:15 GMT
Depth: 15.2m
ADCP 12
Time: 11:17GMT start, 14:09GMT finish
Latitude: 49o57.679N to 49o59.845N
Longitude: 005o10.325W to 005o07.421W
File Name: Data_011r.000
Station 5
Time: 13:47 GMT
Depth: 30.2 m
Salinity: 35.4 PSU
Temperature: 14.4oC
Latitude: 49o59.945N
Longitude: 005o07.937W
CTD
Time: 13:50 GMT
Depth: 26.3m
Water Bottle Samples
Niskin Bottle
Actual Depth
Temperature
Salinity (PSU)
oC
Number Fired
(m)
Surface
8
1.30
35.20
13.80
5
4
4.50
35.20
13.16
15
2
14.60
35.30
12.97
NB: Niskin bottle 2 failed, but a sample for this depth was NOT repeated, and water bottle 6
was first fired for the surface but the CTD was out of the water at that time so the CTD was
lowered and bottle 8 was fired instead.
Depth (m)
Depth (+ Niskin
bottle no.)
Lugols
DO
Bottle Numbers
P
Si
Chl 1
Chl 2
1.30 (8)
4.50 (4)
14.60 (2)
97
12
-
47
120
-
10
9
-
15
14
-
161
199
-
151
209
-
Secchi Disk
Time: 14:06GMT
Depth: 8.5m
Latitude: 49o59.845N
Longitude: 005o07.421W
Zooplankton – Bottle 7 Roger
Time: 14:07GMT
Depth: 20m to 10m
Latitude: 49o59.845N
Longitude: 005o07.421W
ADCP transect (13)
Time: 14:09GMT start, 15:35GMT finish
Latitude: 49o59.845N to 50o09.503N
Longitude: 005o07.421W to 005o03.977W
File Name: Data_012r.000
FRONT: location - 50o01.394N, 005o02.815W?
Geophysics Boat
Date : 5/7/2011
Time: 06.45 GMT
Weather : light rain, SSW winds, cloudy
Tides: Springs, HW: 0729 GMT, LW:1520 GMT
Tech specs
- FD Marine Ltd – Multipurpose vessel Grey Bear (shallow draft workboat)
- Dimensions: 15mx6.1mx1.1m
- 10 passengers and 2 crew
- Load: 20 tonnes cargo and equipment
- Speed: 7.5 knots
- 2 cranes (star and stern)
- 2 winches (3x5 tonne, stern and deck)
- Bow roller
- Bow ramp
Used for: anchor handling, cargo transportation, civil engineers, diving support, moorings,
salvage, cable laying/recovery, pollution control, ROV operations, surveying and sampling
Tow Fish measurements
Rope behind boat – 2.4m
Boat-sensor distance – 4.63m
Transect 1
Start
time(GMT)
9.44.45
9.45.45
9.47.00
9.48.00
9.49.00
9.50.00
9.51.00
9.52.00
9.53.00
9.54.00
End
easting
183690
183720
183774
183797
183818
183853
183890
183922
183944
183967
northing
33310
33446
33640
33711
33813
33934
34040
34151
34286
34358
lat (N)
50 09 60
50 09 695
50 09 781
50 09 821
50 09 877
50 09 942
50 10 006
50 10 083
50 10 137
50 10 214
long (W)
005 01 81
005 01 769
005 01 738
005 01 724
005 01 707
005 01 685
005 01 656
005 01 625
005 01 615
005 01 594
Transect 2
Start
End
time(GMT)
9.57.22
9.58.00
9.59.00
10.00.00
10.01.00
10.02.00
10.03.00
10.04.00
10.05.00
10.06.00
easting northing
183934 34411
183886 34826
183852 34205
183833 34090
183792 33961
183763 33860
183744 33750
183111 33634
183683 33514
183634 33308
lat (N)
50 10 210
50 10 159
50 10 112
50 10 052
50 09 787
50 09 923
50 09 845
50 09 781
50 09 715
50 09 604
long (W)
005 031 6
005 01 668
005 01 857
005 01 696
005 01 724
005 01 748
005 01 767
005 01 781
005 01 810
005 01 842
Transect 3
Start
time(GMT)
10.10.15
10.11.00
10.12.00
10.13.00
10.14.00
easting
183578
183594
183625
183666
183709
northing
33283
33357
33478
33584
33704
lat (N)
50 09 603
50 09 649
50 09 715
50 09 772
50 09 836
long (W)
005 01 881
005 01 874
005 01 848
005 01 817
005 01 789
10.15.00
10.16.00
10.17.00
10.18.00
10.19.00
10.19.44
End
183730
183748
183790
183824
183839
183857
33825
33947
34066
34187
34301
34422
50 09 900
50 09 967
50 09 031
50 09 100
50 09 160
50 09 222
005 01 777
005 01 764
005 01 733
005 01 710
005 01 701
005 01 689
Transect 4
Start
End
time(GMT)
10.23.26
10.25.00
10.26.00
10.27.00
10.28.00
10.29.00
10.30.00
10.31.00
10.32.00
10.33.00
easting northing
lat (N)
long (W)
183833 34444 50.10.223 005.01.717
183771 34281 50.10.130 005.01.760
183747 34160 50.10.067 005.01.777
183714 34044 50.10.002 005.01.801
183679 33910 50.09.922 005.01.825
183662 33800 50.09.873 005.01.835
183633 33682 50.09.802 005.01.855
183612 33555 50.09.738 005.01.869
183576 33445 50.09.679 005.01.898
183535 33352 50.09.929 005.01.929
Transect 5
Start
End
time(GMT)
10.43.25
10.45.00
10.46.00
10.47.00
10.48.00
10.49.00
10.50.00
10.51.00
10.52.00
10.53.00
easting
183451
183547
183565
183602
183622
183659
183686
183708
183745
183783
northing
33341
33502
33611
33728
33847
33964
34085
34206
34328
34454
lat (N)
50.09.19
50.09.720
50.09.781
50.09.496
50.09.097
50.09.981
50.10.042
50.10.108
50.10.172
50.10.244
video transect 1
lat (N)
50.09.810
video Transect 2
lat (N)
start
end
(GMT
(GMT)
005.02.975 11.38.14 11.53.48
long (W)
long (W)
start
end
long (W)
005.01.941
005.02.919
005.01.902
005.01.879
005.01.867
005.01.371
005.01.822
005.01.807
005.01.780
005.01.751
50.09.839
(GMT
(GMT)
005.01.805 12.15.56 12.21.23
video transect 3
lat (N)
50.09.831
start
end
(GMT
(GMT)
005.01.730 12.31.35 12.46.17
long (W)
Grab 1
Cancer pagurus – edible crab x2
Golfingia (vulgaris) x3
Maerl
A brittlestar - Ophiura ophiura
Amphipod (sand hopper)
Carcinus maenas – common shore crab
Grab 2
Common shore crab - Carcinus maenas x5
Phaeophyceae (brown algae)
Cancer pagurus – edible crab
Rhodophyceae – red algae
Maerl
Amphipod (sand hopper)
Capitella capitata
Crangon crangon – common shrimp
Grab 3
Maerl
Cancer pagurus – edible crab x2
Pilumnus hirtellus – hairy crab
Infraorder Anomura – galathea
Galathea diespersa x3
Carcinus maenas - Common shore crab
Pisidia longicornis – long clawed porcelain crab x2
Crangon crangon – common shrimp x2
Hermione hystrix
Polinicies polianus - Gastropod
Sponges
Hydrobia ulvae