GREON Meteorological Data
There are two types of meteorological data files from GREON:
1. MetData
– A csv file containing 15 minute interval values for the parameters listed below in Table 1.
2. MetData24hr
– A csv file containing a 24 hour summary of the daily meteorological parameters. The values
are recorded at 23:59 each night.
1. MetData
In Table 1, I’ve listed the parameters found in the MetData file. In the “GLTG Display” column, I have
indicated which parameters should be displayed in a graphical format on the GLTGVO. See the
spreadsheet “GREON - 04_MetData.xls” for examples of how the graphs will look. Typically, this type of
15 minute interval is shown for the most recent one to two week due to the amount of data points, but
if data storage and retrieval is not a problem, then we could display data for longer periods of time.
Table 1. MetData parameters.
GLTG Data file label
GLTGVO label
Units1
Display
X
TIMESTAMP
Date and Time
RECORD
Y
PAR_Density_Avg
Average PAR
µmol/s/m2
PAR_Raw_mV_Avg
Y
WindSpd_mph
Wind Speed
mph (m/s)
Y
WindDir
Wind Direction
Degrees
Y
WindSpd_mph_Max
Max. Wind Speed
Mph (m/s)
Y
AirTempF_Avg
Air Temperature
°F (°C)
Y
RhPct_Avg
Relative Humidity
%
Y
BaroPress_inHg_Avg
Barometric Pressure
Inches Hg (mmHg)
Y
RainIn_Tot
Rainfall
Inches (mm)
HailHits_Tot
Hail Hits
Hits (hits/cm2)
CompassAve
Average Compass
1
Units are shown for the current settings. Preferably, we should use the units shown in parenthesis. I
think we can use the Loggernet software to change these units.
Comments:
1. A graph of WindDir might be hard to interpret. You would need to fix the Y-axis scale at 0 to 360
and use 90 as the major interval. (0/360=North, 90=East, 180=South, 270=West)
2. RainIn_Tot would probably be better displayed as a bar (column) chart because most of the time it
will be zero except for during rainfall events.
2. MetData24hr
Table 2 is a list of all the parameters found in the MetData24hr file. In the “GLTG Display” column, I
have indicated which parameters should be included in a table display on the GLTGVO. Table 3 is an
example of the type of table we could show on the GLTGVO. We could remove some parameters from
Table 3 if we feel there is too much to display. For example, for temperature, relative humidity, and
barometric pressure, it would probably be sufficient to show only the Max and Min values (i.e., not the
average). You can also see this table on the “Formatted” tab in the “GREON – 02_MetData24hr.xls” file.
Table 2. Twenty-four hour summary of meteorological data.
GLTG Parameter
Display
X
TIMESTAMP
RECORD
X
PAR_DailyTotal_Tot
X
WindSpd_mph
X
WindDir
X
WindSpd_mph_Max
X
AirTempF_Avg
X
AirTempF_Max
X
AirTempF_Min
X
RhPct_Avg
X
RhPct_Max
X
RhPct_Min
X
BaroPress_inHg_Avg
X
BaroPress_inHg_Max
X
BaroPress_inHg_Min
X
RainIn_Tot
X
HailHits_Tot
GLTBVO label
Solar Radiation
Wind Speed – Avg
Wind Direction
Wind Speed – Max
Air Temperature – Avg
Air Temperature – Max
Air Temperature – Min
Humidity – Avg
Humidity – Max
Humidity – Min
Pressure – Avg
Pressure – Max
Pressure – Min
Units
Table 3. Daily summary of weather data.
Date
10/1/2014
Solar
Radiation
(mmol/m2)
Wind
Direction
(degrees)
Wind Speed
(mph)
Air Temperature
(°F)
Humidity
(%)
Barometric Pressure
(inHg)
Avg
Max
Avg
Max
Min
Avg
Max
Min
Avg
Max
Min
Rain
(in)
Hail
Hits
(Total)
31,873
115.40
8.19
21.70
72.29
84.50
60.60
68.31
89.20
45.00
29.41
29.47
29.32
0.07
0
10/2/2014
14,832
114.00
7.16
24.20
68.82
74.60
65.80
86.30
92.10
71.60
29.35
29.45
29.20
2.86
0
10/3/2014
12,509
279.30
15.54
33.80
58.52
66.00
48.50
76.73
92.10
51.40
29.39
29.58
29.12
0.34
0
10/4/2014
34,141
265.00
12.03
31.40
47.98
54.60
43.30
62.40
82.60
40.80
29.49
29.55
29.45
0.03
0
10/5/2014
32,703
172.00
5.98
27.90
55.24
71.20
42.90
62.23
84.50
35.90
29.32
29.45
29.19
0.00
0
10/6/2014
30,323
244.30
7.02
30.70
61.42
69.80
54.60
62.23
85.90
34.20
29.26
29.34
29.21
0.09
0
10/7/2014
30,108
231.00
7.44
29.50
63.21
74.30
54.80
69.75
87.90
35.60
29.33
29.50
29.25
0.13
0
10/8/2014
33,069
277.20
3.54
12.50
60.79
71.70
49.40
67.57
90.30
32.20
29.59
29.66
29.50
0.00
0
10/9/2014
9,394
65.10
6.57
16.10
58.80
61.70
55.00
78.43
91.40
61.50
29.59
29.66
29.54
1.00
0
10/10/2014
5,613
30.22
6.42
15.60
54.54
58.40
52.10
79.67
90.30
63.10
29.61
29.67
29.56
0.30
0
10/11/2014
9,805
47.76
5.48
12.60
52.87
57.20
48.30
70.94
84.10
53.90
29.68
29.75
29.63
0.01
0
10/12/2014
5,713
118.70
6.64
13.50
55.67
60.80
50.90
84.90
92.50
71.40
29.48
29.65
29.37
0.01
0
10/13/2014
3,807
136.40
8.33
30.40
64.05
68.10
58.60
88.90
93.60
81.90
29.20
29.39
29.02
0.76
0
10/14/2014
6,757
262.00
13.43
26.00
56.48
63.10
54.50
87.20
90.50
81.00
29.09
29.23
28.99
0.02
0
10/15/2014
7,218
304.40
11.12
21.90
55.03
56.80
53.00
81.50
90.10
70.30
29.34
29.42
29.23
0.03
0
10/16/2014
30,666
172.30
4.00
13.70
62.04
71.00
50.50
65.01
90.10
35.40
29.36
29.46
29.29
0.00
0