MADIS Surface Variables - 1-minute ASOS
Numeric
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Code Name Units Max Notes Database
QC Level FSL AWIPS*
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TD dewpoint temperature K 3 1,6 X
RH relative humidity % 3 1,6 X
Q specific humidity kg/kg 3 1,6 X
DPD dewpoint depression K 3 1,6 X
AH absolute humidity g/(m**3) 3 1,6 X
ALTSE altimeter Pa 3 2 X
DENSALT density altitude m 0 X
WVMR water vapor mixing ratio kg/kg 3 1,6 X
P station pressure Pa 3 2 X
T air temperature K 3 4 X
TV virtual temperature K 3 4,6 X
DD wind direction deg 3 5 X
FF wind speed m/s 3 5 X
U u wind component m/s 3 5 X
V v wind component m/s 3 5 X
VIS visibility m 1 X
ELEV elevation m 0 X
LAT latitude deg N 0 X
LON longitude deg E 0 X
PLATTYP data platform type code 0 6 X
PCP1H accumulated precip - 1h m 1 7,6 X
PCPRATE precipitation rate kg/(m**2)/s 1 7 X
SKYCVLB sky cover layer base m 0 10 X
FFGUST wind gust m/s 1 6 X
RVRID runway ID deg 0 23 X
RVRLOC location of RVR runway 23 X
RVRTYPE runway visual range distance type 23 X
RVRVR runway visual range distance m 0 23 X
ALERT1 alert data 1 24 X
ALERT2 alert data 2 24 X
ARMKST automated remarks status 34 X
DDSS wind direction sensor status 35 X
FFSS wind speed sensor status 35 X
FRZRSS freezing rain sensor status 35 X
PCPASS precip accumulation sensor status 35 X
PCPTSS precip occurrence and type sensor status 35 X
PSS pressure sensor status 35 X
RVRSS runway visual range sensor status 35 X
SCLBSS sky cover layer base sensor status 35 X
TDSS dewpoint sensor status 35 X
TSS temperature sensor status 35 X
VISSS visibility sensor status 35 X
OPSTAT operating status 36 X
PARACT parameter activation status 37 X
Character
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Code Name Character Notes Database
Size FSL AWIPS
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PRESWEA present weather 25 20 X
SKYCOV sky cover 3x8 10 X
STALOC station location 51 21 X
AUTORMK automated remarks 80 34 X
OPERRMK operator remarks 80 34 X
*The 1-minute ASOS dataset is only available with the FSL database.
Last updated 15 March 2017
