JISAO data
University of Delaware global surface air temperature and precipitation climatology and monthly grids, 1950-99

Produced by Cort Willmott, Kenji Matsuura, and Michael Rawlins


Introduction | Data




Canada and continental US domain.

ENSO-related November through April surface air temperature
anomalies.




These data sets are a subset of the global and regional surface air temperature and
precipitation data sets developed at the University of
Delaware (UD).  
I downloaded selected data sets and have written them as netCDF files.
The different data sets are based on a variety of analysis techniques,
and you need to read the documentation at the UD WWW site to
understand the analysis method that is employed.  Also, I obtain data
sets as I need them, and the netCDF files may not be the latest
versions of these analyses.  Questions about
the data sets should be addressed to the authors listed in the
documentation files.


Finally, the native resolution of the data sets is
0.5-degrees latitude-longitude.  I have calculated 1-degree
longitude-latitude resolution versions of the year-month grids, and
they are sufficiently detailed for many calculations.



The data:

Global precipitation climatology (version 3.01):


  • At JISAO: /home/disk/muggy/data/willmott/rain/precipudclim.nc
    

  • The data in ASCII format
    

  • The data in netCDF format (~62 Mb)
    

  •  Documentation
    

  • Analyses for Africa and South America are available through these links.
    

  • Version
3.02 in ASCII format
    

Global precipitation monthly grids for 1950-99:
    

  •  At JISAO, these files are "precipud5099.nc.gz" and
"precipud5099.1deg.nc" on /home/disk/muggy/data/willmott/rain/
    

  • The data in ASCII format
    

  • Gzipped netCDF format (61Mb).
    

  • One-degree latitude-longitude
resolution netCDF version (~77 Mb).
    

  • Documentation
    

Arctic precipitation monthly grids for 1960-90:
    
This data set contains observations from Canada and the former Soviet
Union that are not included in the global data sets.  There
is also an Arctic climatology at the UD.
    

  •  At JISAO, these files are "preciparcticud6090.nc" and
"preciparcticud6090.1deg.nc" on /home/disk/muggy/data/willmott/rain/
    

  • The
data in ASCII format
    

  • netCDF format (48Mb).
    

  • One-degree latitude-longitude
resolution netCDF version (~12Mb).
    

  • Documentation
    

Global surface air temperature climatology (version 3.01):
    

  • At JISAO: /home/disk/muggy/data/willmott/temperature/sfctempudclim.nc
    

  • The data in ASCII format
    

  • The data in netCDF format (~62 Mb)
    

  •  Documentation
    

  • Version
3.02 in ASCII format
    

Global surface air temperature monthly grids for 1950-99:
    

  •  At JISAO, these files are "sfctempud5099.nc.gz" and
"sfctempud5099.1deg.nc" on /home/disk/muggy/data/willmott/temperature/
    

  • The data in ASCII format
    

  • Gzipped netCDF format (61Mb).
    

  • A 1-degree
latitude-longitude resolution version of this data set (78 Mb).
    

Arctic surface air temperature monthly grids for 1960-90:
    
This data set contains observations from Canada and the former Soviet
Union that are not included in the global data sets.  There
is also an Arctic climatology at the UD.
    

  •  At JISAO, these files are "sfctemparcticud6090.nc" and
"sfctemparcticud6090.1deg.nc" on /home/disk/muggy/data/willmott/temperature/
    

  • The
data in ASCII format
    

  • netCDF format (48Mb).
    

  • One-degree latitude-longitude
resolution netCDF version (~12Mb).
    

  • Documentation
    

    

    

    


    

    October 2002
    Todd Mitchell (mitchell@atmos.washington.edu)
    

JISAO  data