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SNACS Atmospheric Model: source code and configuration files



This dataset archives the SNACS Polar MM5 atmospheric model code and settings for the 50km simulations. If you uncompress and then untar the file, you'll have a directory called MM5 which will contain all of the source code and four configuration files.

Data generated by the model includes:
date (yyyy-mm-dd in *_avg.txt file and yyyy-mm-dd_hh in *_3h.txt file) (UTC)
psfc - surface pressure (mb)
slp - sea level pressure (mb)
tg - ground temperature (K)
t2m - 2m air temperature (K)
q2m - 2m water vapor mixing ratio (kg/kg)
ws10 - 10m wind speed (m/s)
wd - 10m wind direction (deg)
ust - friction velocity, u* (m/s)
lhf - latent heat flux (W/m^2)
shf - sensible heat flux (W/m^2)
grnf - ground heat flux (W/m^2)
swd - downwelling shortwave radiation at surface (W/m^2)
swu - upwelling shortwave radiation at surface (W/m^2)
alb - albedo (fraction)
lwd - downwelling longwave radiation at surface (W/m^2)
lwu - upwelling longwave radiation at surface (W/m^2)
p3h - accumulated precipitation (24h in *_avg.txt file and 3h in *_3h.txt file) (cm)
swe - snow water equivalent (mm)
cld_frac - cloud fraction (fraction)

Data access

Additional information

  • 1.0 (2008-05-19)
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Related projects
Spatial Type grid
Frequency other
Language English
ISO Topic Categories
  • climatologyMeteorologyAtmosphere
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 1957-09-01 00:00:00
End datetime 2006-12-31 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 71.87, Minimum (South) Latitude: 68.03
Minimum (West) Longitude: -158.01, Maximum (East) Longitude: -153.89

Primary point of contact information

John Cassano <>

Additional contact information


Cassano, J., Cassano, J. 2008. SNACS Atmospheric Model: source code and configuration files. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 29 May 2024.

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Ancillary information

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