g2subset (grib2 subset) allows you to subset (time, field, level, or region) a GRIB2 file and sends you the result Directory:   /gdas.20250707/18/atmos
**NEW** Select one file only (size in bytes)
gdas.t18z.pgrb2.0p25.f000 (478743410) gdas.t18z.pgrb2.0p25.f001 (509115768) gdas.t18z.pgrb2.0p25.f002 (509924425) gdas.t18z.pgrb2.0p25.f003 (512172066) gdas.t18z.pgrb2.0p25.f004 (510550998) gdas.t18z.pgrb2.0p25.f005 (511844957) gdas.t18z.pgrb2.0p25.f006 (510944751) gdas.t18z.pgrb2.0p25.f007 (506183607) gdas.t18z.pgrb2.0p25.f008 (509815614) gdas.t18z.pgrb2.0p25.f009 (509332790) GRIB Filter
Extract Levels and Variables You may select some or all levels and variables. The selections below represent common choices which may or may not be relevant to the files that you have selected. For example choosing RH (relative humidity) would be pointless in file of sea-surface temperatures. In addition, not all possibilities are allowed. For example, suppose you only want the virtual temperature at the tropopause at 01Z. In this case you'd have to transfer the entire file.
For GRIB-2 data only.
Select the levels desired: all 0.01 mb 0-0.1 m below ground 0.02 mb 0.04 mb 0.07 mb 0.1-0.4 m below ground 0.1 mb 0.2 mb 0.33-1 sigma layer 0.4-1 m below ground 0.44-0.72 sigma layer 0.44-1 sigma layer 0.4 mb 0.72-0.94 sigma layer 0.7 mb 0.995 sigma level 0C isotherm 1000 m above ground 1000 mb 100 m above ground 100 mb 10 m above ground 10 m above mean sea level 10 mb 1-2 m below ground 150 mb 15 mb 180-0 mb above ground 1829 m above mean sea level 1 hybrid level 1 mb 200 mb 20 m above ground 20 mb 250 mb 255-0 mb above ground 2743 m above mean sea level 2 hybrid level 2 m above ground 2 mb 3000-0 m above ground 300 mb 30-0 mb above ground 30 m above ground 30 mb 350 mb 3658 m above mean sea level 3 mb 4000 m above ground 400 mb 40 m above ground 40 mb 450 mb 500 mb 50 m above ground 50 mb 550 mb 5 mb 6000-0 m above ground 600 mb 650 mb 700 mb 70 mb 750 mb 7 mb 800 mb 80 m above ground 850 mb 900 mb 90-0 mb above ground 925 mb 950 mb 975 mb boundary layer cloud layer cloud ceiling convective cloud bottom level convective cloud layer convective cloud top level entire atmosphere entire atmosphere (considered as a single layer) high cloud bottom level high cloud layer high cloud top level highest tropospheric freezing level low cloud bottom level low cloud layer low cloud top level max wind mean sea level middle cloud bottom level middle cloud layer middle cloud top level planetary boundary layer PV=-2e-06 (Km^2/kg/s) surface PV=2e-06 (Km^2/kg/s) surface surface top of atmosphere tropopause
Select the variables desired: all 4LFTX ABSV ACPCP ALBDO APCP CAPE CFRZR CICEP CIN CLWMR CNWAT CPOFP CPRAT CRAIN CSNOW CWAT CWORK DLWRF DPT DSWRF DZDT FLDCP FRICV GFLUX GRLE GUST HCDC HGT HINDEX HLCY HPBL ICAHT ICEC ICEG ICETK ICETMP ICMR LAND LCDC LFTX LHTFL MCDC MSLET O3MR PEVPR PLPL POT PRATE PRES PRMSL PWAT REFC REFD RH RWMR SFCR SHTFL SNMR SNOD SOILL SOILW SOTYP SPFH SUNSD TCDC TMAX TMIN TMP TOZNE TSOIL UFLX UGRD U-GWD ULWRF USTM USWRF VEG VFLX VGRD V-GWD VIS VRATE VSTM VVEL VWSH WATR WEASD WILT
File transfer times can be reduced by only transferring a subregion. You can use this section to extract a geographic subsection from a most GRIB files. Use negative numbers for south and west.
Show the URL only for web programming
Don't forget to pause before resubmitting requests.
NCEP NOMADS Version 1.2