Observed Energy Forcing Fields
These hourly meteorological data for 8 basins in the DMIP
domains are derived from the 1/8 degree gridded data files
developed at the University of Washington. These files are
named xxxxxxxx.dat, where xxxxxxxx are the 8-digit USGS
basin ID. The correspondence between basin names and USGS
ID are as follows:
03069500 CHEAT RIVER NEAR PARSONS, WV
07194800 ILLINOIS RIVER AT SAVOY, ARK.
07195500 ILLINOIS RIVER NEAR WATTS, OK
07196000 FLINT CREEK NEAR KANSAS, OK
07196500 ILLINOIS RIVER NEAR TAHLEQUAH
07196973 PEACHEATER CREEK AT CHRISTIE, OK (no data for this basins)
07197000 BARON FORK AT ELDON, OK
07189000 ELK RIVER NEAR TIFF CITY, MO
07332500 BLUE RIVER NEAR BLUE, OK
The data are hourly (one row for each hour) beginning January 1, 1992,
and continuing through July 31, 2000.
Each file contains 9 columns of data:
1) date and hour (in yyyymmddhh format)
2) precipitation (mm) (see note below)
3) air temperature (C)
4) incoming shortwave radiation (W/m^2)
5) incoming longwave radiation (W/m^2)
6) atmospheric density (kg/m^3)
7) atmospheric pressure (kPa)
8) atmospheric vapor pressure (kPa)
9) wind speed (m/s)
Note: The precipitation data provided here are different from the
NEXRAD data. It is recommended that NEXRAD data be used for DMIP.
For a more complete description of the source of these data, please see:
Brief descriptions of the data:
2) NCDC Cooperative Observer station data, gridded to the grid cell
Each daily precipitation total, for this dataset, is simply divided
24 equal increments.
3) Maximum and minimum air temperature is also from NCDC Cooperative
stations, with an asymmetric hermite polynomial fitted through these
estimate hourly temperature.
4) Incoming shortwave is parameterized from the daily max/min
and dew point, following Thornton and Running (1999)
5) Incoming longwave is calculated following Bras (1990), using air
humidity, and atmospheric transmissivity (produced in 3).
6) Atmospheric density is estimated according to Shuttleworth (1993)
7) Atmospheric pressure is assumed constant here.
8) Vapor pressure is estimated iteratively using Kimball (1997) and
9) Wind speed is the average daily 10m wind speed from NCEP/NCAR
(resultant of u- and v-wind components), interpolated to the 1/8
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