WRF and Iris
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Thomas Green
Mar 5, 2014, 5:39:43 PM3/5/14
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Iris world,
I have been looking at how Iris can be used with NetCDF files from WRF. I managed to convert the information in the WRF NetCDF file to something which Iris can understand - the main issue was creating the correct coordinate (in my case lambert). This at least plotted the data correctly and was the bare minimum.
I have been thinking how best to proceed with this - I am currently using a callback to perform the conversion but I see there is some information how to support new formats - e.g. http://scitools.org.uk/iris/docs/latest/examples/graphics/custom_file_loading.html#custom-file-loading. Also spotted http://foehn.colorado.edu/wrfout_to_cf/ which might contain more information how to convert WRF output to CF compliance.
Anyone else looked into this? Happy to work together on this.
Tom
I have been looking at how Iris can be used with NetCDF files from WRF. I managed to convert the information in the WRF NetCDF file to something which Iris can understand - the main issue was creating the correct coordinate (in my case lambert). This at least plotted the data correctly and was the bare minimum.
I have been thinking how best to proceed with this - I am currently using a callback to perform the conversion but I see there is some information how to support new formats - e.g. http://scitools.org.uk/iris/docs/latest/examples/graphics/custom_file_loading.html#custom-file-loading. Also spotted http://foehn.colorado.edu/wrfout_to_cf/ which might contain more information how to convert WRF output to CF compliance.
Anyone else looked into this? Happy to work together on this.
Tom
ScottHosking
Mar 6, 2014, 7:20:24 AM3/6/14
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Hi Tom,
I am also interested in using Iris to analyse WRF files. All I've done so far with regards to reading and plotting can be seen in this post https://groups.google.com/forum/#!topic/scitools-iris/O7IRIhMomWc
Scott
I am also interested in using Iris to analyse WRF files. All I've done so far with regards to reading and plotting can be seen in this post https://groups.google.com/forum/#!topic/scitools-iris/O7IRIhMomWc
Scott
ScottHosking
Apr 23, 2014, 8:33:10 AM4/23/14
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Thomas Green
Aug 30, 2014, 5:44:17 PM8/30/14
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Scott,
Sorry for the (very) late reply. For some reason this group appeared dead to me (which I thought was strange) for a good month after I posted this so I have not checked regularly.
Your links look familiar. I think I understand why WRF likes to store coordinate information explicitly (e.g. lat/lon of every point) since I think if I understand WRF correctly the grid can change with weather features (such as hurricanes).
I am working with another researcher at Cardiff University who uses the UM and WRF so it would be good to get a consistent post-processing for them. Will have to take another look at this since its been a while.
Tom Green
Sorry for the (very) late reply. For some reason this group appeared dead to me (which I thought was strange) for a good month after I posted this so I have not checked regularly.
Your links look familiar. I think I understand why WRF likes to store coordinate information explicitly (e.g. lat/lon of every point) since I think if I understand WRF correctly the grid can change with weather features (such as hurricanes).
I am working with another researcher at Cardiff University who uses the UM and WRF so it would be good to get a consistent post-processing for them. Will have to take another look at this since its been a while.
Tom Green
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