change CRS in netcdf4 files

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Sri Adiyanti 2024-8-5

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移动：Walter Roberson 2024-8-6

Hi, I have a bunch of netcdf4 files and need to convert to different coordinate system.

How can we do that?

thanks.

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KSSV 2024-8-5

More inofrmation is needed....

Read the variables.
Check in what projection they are
USe certain defined transformation and convert them.

Sri Adiyanti 2024-8-6

Hi, I am familiar with netcdf4 processing (reading, define and put variables, copy and put attributes, etc.). My MATLAB license include Mapping toolbox. Original coordinates CRS is WGS84 (epsg 4326). I want to convert it to GDA2020 (epsg 7850). What is the transformation function i can use for the conversion?

Thanks.

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回答（1 个）

Walter Roberson 2024-8-6

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https://ww2.mathworks.cn/matlabcentral/answers/2142951-change-crs-in-netcdf4-files#answer_1495509

移动：Walter Roberson 2024-8-6

Use Mapping Toolbox, projcrs . It is code 7845 according to https://www.mathworks.com/help/map/coverage-maps-for-satellite-constellation.html

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Walter Roberson 2024-8-6

移动：Walter Roberson 2024-8-6

Use projfwd to convert from WGS84 to x y, then use projinv to convert the x y to GDA2020

Sri Adiyanti 2024-8-6

移动：Walter Roberson 2024-8-6

Thanks Walter, got it!

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Mathematics and Optimization Mapping Toolbox Coordinate Reference Systems

Radar Mapping Toolbox Coordinate Reference Systems

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