Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Hi Robert: I have seen WRF files where the projection parameters are incorrectly specified. No one noticed because they only use the lat/lon (XLAT,XLON?) variables. However, interpreting the parameters correctly is difficult. Can you send me the file (or http/ftp URL) and i'll have a look. Robert B. Schmunk wrote:
John, To follow up on my e-mail of a week ago, I have been able to use the NJ22 libraries to get into several sample WRF datasets and not only extract the data but also the coordinate transform information. Things seem to work beautifully with three different datasets that use Lambert conformal conic grids (centered at different locations), and I've even been able to doublecheck that by comparing plot made with my own code for the L.c.c. projection. However, one problem I am still encountering is with a dataset that is on a transverse Mercator grid. The data extract and plot easily enough, but an eyeball check of how certain variables compare to coastline locations suggests that something is awry. See for example attached image of HGT (height) and notice how the Mediterranean coastline is a mess. Unfortunately, I have no idea whether this indicates a potential bug in NJ22 or if the dataset is just not gridded as the parameters claim it is gridded. Are you aware of any specific issues between NJ22 and WRF data on a transverse Mercator grid? rbs ------------------------------------------------------------------------ -- Robert B. Schmunk, rschmunk@xxxxxxxxxxxxx NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025
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