Controversy Project
Software version: arcmap104.1
NC (NetCDF) is a set of machine-independent software libraries that enable the creation, access, and sharing of array-oriented data format scientific data, and it is also the community standard for sharing scientific data. (Excerpted from the official website of unidata), which is widely used in the fields of atmosphere, ocean, hydrology, etc., and is a type of data that we often come into contact with in our daily study and work. So, once we have the data, how do we convert it to the TIF format that we commonly use? Let's use the ArcGIS platform as an example today.
Note: The dataset we use here is the 1km monthly potential evapotranspiration dataset (1990-2022) from the National Tibetan Plateau Data Center.
1.First of all, after we have the best data, the data is generally in compressed package format, and it is decompressed first.
2.When we open ArcMap, we can see that we can't browse NC data directly in ArcMap.
3.Open ArcToolbox and load the tool following the following path: Multidimension Tools-Make NetCDF Raster Layer Tool.
Set the input data to the NC file, add the variable name and x,y information automatically, customize the output file name, and select band as time (the data is a month-by-month data set, and each year file contains 12 months of data).
4.Open ArcToolbox and load the tools following the following path: data management-tools-layers and table views
Set the input raster to the file we generated earlier, set the file name, and select the corresponding option in the band (since the dataset is month-by-month data, there are 12 bands, here we select the January data, so we choose 1).
5.Export the layer file to TIF format.
Note: The operation of different datasets is slightly different, and the detailed information can be adjusted according to the actual situation according to the metadata. Due to the large amount of data involved and cumbersome operation, batch processing tools can be used, and only the processing ideas are shown here, so no relevant demonstrations will be made.