| Code | Position | Element | Values | Definitions |
|---|---|---|---|---|
| ETRH | 0XXXX | Extraterrestrial Horizontal
Radiation | 0000 - 1415 | Amount of solar radiation in Wh/m2
received on a horizontal surface at the top of the atmosphere. |
| ETRN | 0XXXX | Extraterrestrial Direct
Normal Radiation | 0000 - 1415 | Amount of solar radiation in Wh/m2
received on a surface normal to the sun at the top of the atmosphere. |
| GRAD | 0XXXX | Global Horizontal
Radiation | 0000 - 1415 | Total amount of direct and diffuse
solar radiation in Wh/m2 received on a horizontal surface. 99999 = missing data. |
| DRAD | 0XXXX | Direct Normal Radiation | 0000 - 1415 | Amount of solar radiation in Wh/m2
received within a 5.7o field of view centered on the sun. 99999 = missing data. |
| SRAD | 0XXXX | Diffuse Horizontal
Radiation | 0000 - 1415 | Amount of solar radiation in Wh/m2
received on a horizontal surface from the sky (excluding the solar disk). 99999 = missing data. |
| TSKC | 0XXYY | Total Sky Cover = XX Opaque Sky Cover = YY | 00 - 10 00 - 10 | Amount of sky dome (in tenths)
covered by clouds. 999 = missing data. Amount of sky dome (in tenths) covered by clouds that prevent observing the sky or higher cloud layers. 99 = missing data. |
| TMPD | 00XXX | Dry Bulb Temperature
| 000 to 600 | Dry bulb temperature in oC and
tenths. 600 = 60.0 oC. 99999 = missing data. |
| DPTP | 00XXX | Dew Point Temperature | 000 to 600 | Dew point temperature in oC and
tenths. 600 = 60.0 oC. 99999 = missing data. |
| RHUM | 00XXX | Relative Humidity | 000 - 100 | Relative humidity in percent.
99999 = missing data. |
| PRES | 0XXXX | Atmospheric Pressure | 0700 - 1100 | Atmospheric pressure in millibars.
99999 = missing data. |
| WIND | XXYYY | Wind Direction = XX Wind Speed = YYY | 00 - 36 000 - 990 | Wind direction in increments of 10
degrees. ( N = 00 or 36). 99 = missing data. Wind speed in m/s (in tenths). 000 - 990 = 0.0 - 99.0 m/s. 999 = missing data. |
| HZVS | 0XXXX | Visibility | 0000 -1609 | Horizontal visibility in hectometers.
0000 - 1609 = 0.0 - 160.9 km. 7777 = unlimited visibility. 99999 = missing data. |
| CLHT | 0XXXX | Ceiling Height | 0000 - 3045 | Ceiling height in decameters.
7777 = unlimited ceiling height. 8888 = cirroform. 99999 = missing data. |
| PWX1 | XXXXX | Present Weather for the
First Five Weather Elements | See
Appendix D | Present weather conditions for the
first five weather elements. See Appendix D for an explanation of weather elements. |
| PWX2 | XXXXX | Present Weather for the
Second Five Weather Elements | See
Appendix D | Present weather conditions for the
last five weather elements. See Appendix D for an explanation of weather elements. |
| PH2O | 00XXX | Precipitable Water | 000 - 100 | Precipitable water in millimeters.
99999 = missing data. |
| TURB | 00XXX | Broadband Aerosol Optical Depth | 000 - 900 | Broadband aerosol optical depth
(broadband turbidity ) in thousandths. 000 - 900 = 0.0 - 0.900 99999 = missing data. |
| SNOW | XXXYY | Snow Depth = XXX Days Since Last Snowfall = YY | 000 - 900 00 - 88 | Snow depth in centimeters.
999 = missing data. Number of days since last snowfall. 88 = 88 or greater days. 99 = missing data. |