Table 3-4. TD-3282 Data Type Codes and Descriptions
CodePositionElementValuesDefinitions
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.



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