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Back to the catalogueData qualityCase 10 of 14
Raster no-data values
Sentinel no-data pixels (e.g. -9999) corrupt aggregates if not masked.
Class
Case to account for
Affects
1 conversion
01
Detection
Pixel equals the declared nodata value.
02
Mitigation
01
Mask nodata before aggregation
02
Record coverage fraction of valid pixels per cell
03
Affected conversions
RasterH3
OPENChapter
Raster To H3More in Data quality
Accuracy-radius attritionAxis-order reversal (lat/lng swap)Coastal / mixed pixelsConfidence-convention mismatchDuplicated region IDsGeocoding uncertaintyIncomplete geometryMissing CRS declarationMissing polygonsRaster/cell resolution mismatchRounded / truncated coordinatesWrong CRS assumedZero-island coordinates