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Parameters produced at NOAA/NESDISGEWEX DAILY FILE RECORD FORMAT: 970418 GH
EACH DAILY FILE CONTAINS ALL HOURS FOR THAT DAY.
EACH HOUR CONSISTS OF 5661 RECORDS (51 LATS, 111 LONS).
EACH RECORD IS 71 REAL*4 WORDS FOR ONE LAT/LON FIELD (.5x.5 DEG).
GOES-8 INSOLATION PARAMETERS
1 LAT Deg TARGET LATITUDE
2 MNAL MEAN ALBEDO OF CHANNEL 1
3 LON Deg TARGET LONGITUDE
4 MNT2 DEG K MEAN TEMPERATURE OF CHANNEL 2
5 DAY YYDDD YEAR AND JULIAN DAY (YYDDD)
6 TIME HMS TIME (GMT HHMMSS)
7 MNT3 DEG K MEAN TEMPERATURE OF CHANNEL 3
8 MNT4 DEG K MEAN TEMPERATURE OF CHANNEL 4
9 SKNT DEG K SKIN TEMPERATURE
10 MNT5 DEG K MEAN TEMPERATURE OF CHANNEL 5
11 OLR W/M**2 OUTGOING LONGWAVE RADIATION
12 R1 W/(M**2 sr micrometer) CHANNEL 1 RADIANCE
13 R2 W/(M**2 sr cm**-1 ) CHANNEL 2 RADIANCE
14 R3 W/(M**2 sr cm**-1 ) CHANNEL 3 RADIANCE
15 R4 W/(M**2 sr cm**-1 ) CHANNEL 4 RADIANCE
16 R5 W/(M**2 sr cm**-1 ) CHANNEL 5 RADIANCE
17 MNCL W/(M**2 sr micrometer) MEAN CLEAR VISIBLE RADIANCE
18 MNCD W/(M**2 sr micrometer) MEAN CLOUDY VISIBLE RADIANCE
19 CCCR W/(M**2 sr micrometer) CLEAR SKY COMPOSITE RADIANCE FOR UMD MODEL
20 NCL NUMBER OF CLEAR PIXELS
21 NCD NUMBER OF CLOUDY PIXELS
22 PCPT CM PRECIPITABLE WATER (FROM FORECAST)
23 SNWD IN./10 SNOW depth (TENTHS OF INCHES)
24 SZA Deg. SOLAR ZENITH ANGLE
25 STZA Deg. SATELLITE ZENITH ANGLE
26 RZA Deg. RELATIVE AZIMUTH ANGLE
27 SNC % SNOW COVER
28 OPAE AEROSOL OPTICAL DEPTH AT .55 MICRONS
29 OPCD CLOUD OPTICAL DEPTH AT .55 MICRONS
30 TMP1 K TEMPERATURE 1ST LEVEL ABOVE SFC
31 TMP2 K TEMPERATURE 2ND LEVEL ABOVE SFC
32 SDAL STANDARD DEVIATION OF CH. 1 ALBEDO
33 Q1 Rel Hum MOISTURE 1ST LEVEL ABOVE SFC
34 Q2 Rel Hum MOISTURE 2ND LEVEL ABOVE SFC
35 SDT2 STANDARD DEVIATION OF CH. 2 TEMPERATURE
36 WD1 M/S WIND SPEED 1ST LEVEL ABOVE SFC
37 WD2 M/S WIND SPEED 2ND LEVEL ABOVE SFC
38 SDT3 STANDARD DEVIATION OF CH. 3 TEMPERATURE
39 TOAD W/M**2 TOP OF ATM DOWN-FLUX(CLR+CLDY)
40 TOAU W/M**2 TOP OF ATM UP-FLUX(CLR+CLDY)
41 SRFD W/M**2 SFC DOWN-FLUX (CLR+CLDY)
42 SRFU W/M**2 SFC UP-FLUX (CLR+CLDY)
43 TAUA W/M**2 TOP OF ATM UP-FLUX (CLR)
44 SFDA W/M**2 SFC DOWN-FLUX (CLR)
45 SFUA W/M**2 SFC UP-FLUX (CLR)
46 SFDD W/M**2 DIFFUSE SFC-DOWN FLUX (CLR+CLDY)
47 DFPR W/M**2 DIFFUSE P. A. R.
48 GLPR W/M**2 GLOBAL (DIRECT+DIFFUSE) P. A. R.
49 LUSE LAND USE (MATHEWS)
50 NPC NUMBER OF PARTLY CLOUDY PIXELS
51 CV14 COVARIANCE BETWEEN CHANNELS 1 AND 4
52 STD1 STANDARD DEVIATION OF CHANNEL 1
53 STD2 STANDARD DEVIATION OF CHANNEL 2
54 STD3 STANDARD DEVIATION OF CHANNEL 3
55 STD4 STANDARD DEVIATION OF CHANNEl 4
56 STD5 STANDARD DEVIATION OF CHANNEL 5
57 CSD1 CLEAR STANDARD DEVIATION OF CHANNEL 1
58 CSD4 CLEAR STANDARD DEVIATION OF CHANNEL 4
59 FTIM HH.H FORECAST TIME (INTERPOLATED)
60 SDT4 STANDARD DEVIATION OF CH. 4 TEMPERATURE
61 SDT5 STANDARD DEVIATION OF CH. 5 TEMPERATURE
62 CCR2 CLEAR COMPOSITE RADIANCE FOR CLOUD DETECTION
63 SFCP MB SURFACE PRESSURE
64 CLT2 DEGK MEAN CLEAR TEMPERATURE OF CHANNEL 2
65 CLT3 DEGK MEAN CLEAR TEMPERATURE OF CHANNEL 3
66 CLT4 DEGK MEAN CLEAR TEMPERATURE OF CHANNEL 4
67 CLT5 DEGK MEAN CLEAR TEMPERATURE OF CHANNEL 5
68 CDT2 DEGK MEAN CLOUDY TEMPERATURE OF CHANNEL 2
69 CDT3 DEGK MEAN CLOUDY TEMPERATURE OF CHANNEL 3
70 CDT4 DEGK MEAN CLOUDY TEMPERATURE OF CHANNEL 4
71 CDT5 DEGK MEAN CLOUDY TEMPERATURE OF CHANNEL 5
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Data sources:
All of the forecast information (words 20, 30-38, 59, 63) is from the
closest two ETA model forecasts in time. The forecasts are time
interpolated to the satellite observation time and interpolated to the
center of the target. The .5 by .5 degree target is centered on the
latitude/longitude coordinates given in words 1 and 3.
Snow cover information is read from the Air Force snow depth analysis.
A location is considered to have snow cover if the depth is at least
one inch. Percentage of the target covered is the percentage of
Airforce analysis points within the target which are snow covered.
Radiation budget parameters are generated from the Univ. of Md algorithm.
More information on the algorithm is located in file INSOL.DOC. Data
output by the algorithm includes words 39-48, 23, and 49.
The ASOS information is currently not being added to the record.
All other data (excluding file information) is generated from GOES
imager information.
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Key for selected parameters:
Satellite ID: 8 - GOES 8
Land Use: 1 - Ocean
2 - Land
3 - Desert
4 - Snow/Ice
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Forecast time (FTIM) - The forecast data is time interpolated from
the two forecasts bracketing the hour being
processed. This time refers to the
extrapolated valid time.
Current areal coverage: maximum latitude 50.0 degrees north
mininum latitude 25.0 degrees north
maximum longitude 125.0 degrees west
minimum longitude 70.0 degrees west
Last modified on Feb 4, 2000 |
