NodataWerten
NodataWerten, often written as NoData values in English, refer to missing or undefined values in raster and gridded datasets. They indicate locations where data are unavailable, irrelevant, or outside the capture extent. Rather than real numeric data, a NoData value serves as a sentinel that informs analysis and visualization routines how to treat those cells.
In raster formats such as GeoTIFF, NetCDF, or HDF, a specific value is designated as the NoData
NoData values are conceptually distinct from NaN (Not a Number) in floating-point arithmetic or from SQL NULL.
Handling NoData involves masking, data cleaning, or interpolation that respects missing data, as well as using