I'm trying to extract certain climatic variables such as precipitation and temperature from RCM CORDEX data set for my study area in the south Indian region. The downloaded netcdf data files are in rotated polar coordinate system with grid_north_pole_longitude, latitude = -123.34, 79.95 and rlon =193; rlat=130. Now I have to transform this data set into WGS 1984 UTM zone. How can I transform the coordinate by using MATLAB or R language?
http://home.hiwaay.net/~taylorc/toolbox/geography/geoutm.html
then with CTRL+U you can view the source code of the web page where there is the javascript code of the conversion formula.
Translating this code in matlab or R should be quite simple
https://stackoverflow.com/questions/19438638/rotation-of-labels-to-follow-x-axis-in-ggplot2-polar-projection
Hi, how i can get CORDEX data !! and in what environment can I do the treatment! ( for exeple R or Matlab..)
For extracting data from CORDEX netcdf files, you should convert your regular coordinate to rotated coordinate by bellow tool and then extract your data by using rotated coordinate and rlat/rlon variables in your file. You can extract data by any language programming or you can use "Netcdf-Extractor" in this website.
Search "Rotation of Coordinates Based On CORDEX Domains" in google to find the converter tool. or "Netcdf-Extractor" for find the extractor
and you can see this:
https://www.researchgate.net/project/CORDEX-Data-Extractor?_sg=IFBFyGKOmWpKcmVC-oUyY-ambgYXZ8FeJmKnGIb6Pl186txc49we6zCF-2yltMbROERoa4p8UxbPTRpMRmSiktNHCnnNBJybqt8R
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