Lettuce Monitoring Stations
15-Minute Data File Formats
Jan 21, 2012
Dome
V.**
US95 &
5E**
18th &
F3/4**
14th & G**
Yuma Ag
Ctr***
Filename:
ls01-1.dat
Filename:
ls02-1.dat
Filename:
ls03-1.dat
Filename:
ls04-1.dat
Filename:
ls05-1.dat
Filename
ls06-1.dat
Filename
ls06-2.dat
1
SC
SC
SC
SC
SC
SC
SC
2
YR
YR
YR
YR
YR
YR
YR
3
DOY
DOY
DOY
DOY
DOY
DOY
DOY
4
TOD
TOD
TOD
TOD
TOD
TOD
TOD
5
R
R
R
R
R
R
R
6
AT2
AT2
AT2
AT2
AT2
AT2
Vn
7
ExT30
ExT30
ExT30
ExT30
ExT30
RH2
ExT30
8
AT30
AT30
AT30
AT30
AT30*
TD2
LW1
9
Tsfc
TD2
TD2
TD2
TD2
U2
LW1m
10
LW1
LW1
LW1
LW1
LW1
EA2
11
LW1m
LW2
LW2
LW2
LW2*
VPD2
12
U2
LW1m
LW1m
LW1m
LW1m
13
TD2
LW2m
LW2m
LW2m
LW2m*
14
RH2
U2
U2
U2
U2
RH2
RH2
RH2
RH2
Data Pt
#
15
Roll Lettuce
ABBREVIATIONS: 15-MINUTE DATA FILES
SC: Datalogger Scan Code
YR: Year
DOY: Day of Year
TOD: Time of Day
R: Record Number
AT2: Mean Air Temperature @ 2m, Deg. F
ExT30: Mean Exposed Temperature @ 30cm, Deg. F
AT30: Mean Sheltered Temperature @ 30cm, Deg. F
EA2: Mean Vapor Pressure @ 2m, kPa
Vn: Minimum Datalogger Battery Voltage, Volts
TD2: Mean Dew Point Temperature @ 2m, Deg. F
LW1: Mean Leaf Wetness Output @ 30 cm) , mV
LW2: Mean Leaf Wetness Output @ 30 cm) , mV
LW1m: Minutes of Leaf Wetness (Range: 0-15 Min)
LW2m: Minutes of Leaf Wetness (Range: 0-15 Min)
U2: Mean Wind Speed @ 2m, mph
RH2: Mean Relative Humidity @ 2m, %
Tsfc: Surface Temperature (IRT), Deg. F
VPD2: Mean Vapor Pressure Deficit @ 2m, kPa
Note: There are two temperature sensors installed at 30cm above ground level at most locations. One is exposed to
direct sunlight and the cold night sky (ExT30). A second sensor is housed in a radiation shelter and protected from
direct sunlight and the cold night sky (AT30).
* Indicates Sensor Not Connected (Data Are Meaningless)
** Effective Date of New Format: November 11, 2011
*** Effective Date of New Format: November 22, 2011
Lettuce Monitoring Stations
Daily Data File Formats
Jan 21, 2012
Data
Pt #
Dome
V**
US95 & 5E**
18th & F3/4**
Filename:
ls01-2.dat
Filename:
ls02-2.dat
1
SC
SC
SC
SC
SC
2
YR
YR
YR
YR
3
DOY
DOY
DOY
4
TOD
TOD
5
R
6
14th & G**
Filename: Filename: Filename: Filename:
ls02-3.dat ls03-2.dat ls03-3.dat ls04-2.dat
Yuma Ag Ctr***
Roll
Lettuce
Filename:
ls04-3.dat
Filename:
ls05-2.dat
Filename:
ls05-3.dat
Filename:
ls06-3.dat
SC
SC
SC
SC
SC
YR
YR
YR
YR
YR
YR
DOY
DOY
DOY
DOY
DOY
DOY
DOY
TOD
TOD
TOD
TOD
TOD
TOD
TOD
TOD
R
R
R
R
R
R
R
R
R
AT2x
AT2x
LW1
AT2x
LW1
AT2x
LW1
AT2x
LW1
AT2x
7
AT2n
AT2n
LW1m
AT2n
LW1m
AT2n
LW1m
AT2n
LW1m
AT2n
8
AT2
AT2
LD1m
AT2
LD1m
AT2
LD1m
AT2
LD1m
RH2x
9
ExT30x
ExT30x
LW2
ExT30x
LW2
ExT30x
LW2
ExT30x
LW2*
RH2n
10
ExT30n
ExT30n
LW2m
ExT30n
LW2m
ExT30n
LW2m
ExT30n
LW2m*
Vn
11
ExT30
ExT30
LD2m
ExT30
LD2m
ExT30
LD2m
ExT30
LD2m*
TD2x
12
AT30x
AT30x
RH2x
AT30x
RH2x
AT30x
RH2x
AT30x*
RH2x
TD2n
13
AT30n
AT30n
RH2n
AT30n
RH2n
AT30n
RH2n
AT30n*
RH2n
U2
14
AT30
AT30
RH2
AT30
RH2
AT30
RH2
AT30*
RH2
U2x
15
SfcTx
U2x
Vn
U2x
Vn
U2x
Vn
U2x
Vn
EA2
16
SfcTn
U2
U2
U2
U2
ExT30n
17
SfcT
TD2x
TD2x
TD2x
TD2x
LW1m
18
LW1
TD2n
TD2n
TD2n
TD2n
19
LW1m
TD2
TD2
TD2
TD2
20
LD1m
21
U2x
22
U2
23
TD2x
24
TD2n
25
TD2
26
LW2m
27
RH2x
28
RH2n
29
RH2
30
Vn
ABBREVIATIONS: DAILY DATA FILES
SC: Datalogger Scan Code
YR: Year
DOY: Day of Year
TOD: Time of Day
R: Record Number
AT2x: Maximum Air Temperature for Day @ 2m, Deg. F
AT2n: Minimum Air Temperature for Day @ 2m, Deg. F
AT2: Mean Air Temperature for Day @ 2m, Deg. F
ExT30x: Maximum Exposed Temperature for Day @ 30cm, Deg. F
ExT30n: Minimum Exposed Temperature for Day @ 30cm, Deg. F
ExT30: Mean Exposed Temperature for Day @ 30cm, Deg. F
EA2: Mean Vapor Pressure @ 2m, kPa
AT30x: Maximum Air Temperature for Day @ 30cm, Deg. F
AT30n: Minimum Air Temperature for Day @ 30cm, Deg. F
AT30: Mean Air Temperature for Day @ 30cm, Deg. F
SfcTx: Maximum Surface Temperature (IRT), Deg. F
SfcTn: Minimum Surface Temperature (IRT), Deg. F
SfcT: Mean Surface Temperature (IRT), Deg. F
U2x: Maximum Wind Speed for Day @ 2m, mph
U2: Mean Wind Speed for Day @ 2m, mph
TD2x: Maximum Dew Point Temperature for Day @ 2m, Deg. F
TD2n: Minimum Dew Point Temperature for Day @ 2m, Deg. F
TD2: Mean Dew Point Temperature for Day @ 2m, Deg. F
RH2x: Maximum Relative Humidity for Day @ 2m, %
RH2n: Minimum Relative Humidity for Day @ 2m, %
RH2: Mean Relative Humidity for Day @ 2m, %
LW1: Mean Leaf Wetness Output (Sensor 1 @ 30cm), mV
LW2: Mean Leaf Wetness Output (Sensor 2 @ 30cm), mV
LW1m: Minutes of Leaf Wetness (Sensor 1; Maximum=1440)
LD1m: Minutes of Dry Foliage (Sensor 1; Maximum=1440)
LW2m: Minutes of Leaf Wetness (Sensor 2; Maximum=1440)
LD2m: Minutes of Dry Foliage (Sensor 2; Maximum=1440)
Vn: Minimum Datalogger Battery Voltage, Volts
* Indicates Sensor Not Connected (Data Are Meaningless)
** Effective Date of New Format: November 11, 2011
*** Effective Date of New Format: November 22, 2011
Note_1: There are two temperature sensors installed at 30cm above ground level at most locations.
One is exposed to direct sunlight and the cold night sky (ExT30). A second sensor is housed in a
radiation shelter and protected from direct sunlight and the cold night sky (AT30).
Note_2: A day is defined as the 24-hour period ending at midnight. Because midnight marks the
beginning of the next day, day of year can be misinterpreted in these files. For example, a daily data
record for midnight on day of year 306 contains the daily data summary for the previous 24 hour
period (day of year 305). Users should subtract 1 from the day of year listed to properly align the
data and the date. The only exception occurs on December 31st when day of year will be reported
as 1 (New Year’s Day).