How to use NCEP dataset to make forcing data for CLM run

[xingmelody@yahoo_com_cn]

NCEP dataset is 6hour, 00 06 12 18, while the CLM forcing data released with the code is 3hour,00 03 06 09 12 15 18 21. I wonder that if I use the 6h data of NCEP directly, not do temperal interpolation, thus constructed forcing dataset can force the run of CLM correctly, and if I must interpolate the 6hour data to 3hour or some configuration of CLM should be done to run with the 6hour forcing data.

 

[slevis]

I think that the clm can handle 6-hourly instead of 3-hourly data. Use the format that the clm expects, and hopefully everything will go smoothly. I think you will find it helpful to look inside the clm code, to see how the model reads the data and how it knows whether it's reading 3 or 6-hourly data.

Sam

 

[ckcastillo@purdue_edu]

Hi, leemx.
Were you able to get 6h data to work without interpolation?

 

[chen1718@umn_edu]

You may want to try to use the Princeton forcing data. This 50-year data set was derived from the NCEP/NCAR reanalysis. The temporal resolution is already interpolated to 3-hourly. I'm now trying to use this data.

http://hydrology.princeton.edu/data.pgf.php
Sheffield, J., G. Goteti, and E. F. Wood, 2006: Development of a 50-yr high-resolution global dataset of meteorological forcings for land surface modeling, J. Climate, 19 (13), 3088-3111

Good luck-

Ming