v0.9.3

New features

• GeoTIFF/COG reader and writer with GPU acceleration and datum transforms (#1035) (#1062)
• nvJPEG GPU acceleration for JPEG-compressed GeoTIFFs (#1050) (#1055)
• LZ4 and LERC compression codecs for GeoTIFF (#1063)
• Dask-native out-of-core reproject and merge module (#1031)
• MCDA module for spatial multi-criteria decision analysis (#1030) (#1058)
• Edge detection filters: Sobel, Laplacian, Prewitt (#1042)
• Focal variety statistic (#1040) (#1043)
• NDSI, NDBI, BAI, MSAVI2, and OSAVI spectral indices (#1044)
• Northness and eastness aspect functions (#1039) (#1041)
• Rescale and standardize normalization utilities (#1028)
• Morphological gradient, white top-hat, and black top-hat operators (#1026)
• D-inf and MFD variants of flow_path, watershed, and HAND (#1020)
• D-infinity flow length computation (#1012) (#1013)
• MFD flow length computation (#1011)
• Vegetation-aware flood modeling: roughness, curve number, and depth from land cover (#1029)
• Lightweight CRS parser, removes hard pyproj dependency (#1072)
• plot() accessors for DataArray and Dataset (#1074)
• fused_overlap and multi_overlap dask graph utilities (#1071)
• rechunk_no_shuffle utility (#1068)

Bug fixes and improvements

• Fix D-inf flow direction odd facet decomposition per Tarboton 1997 (#1005)
• Fix CuPy uint8 overflow and CUDA cubic NaN fallback (#1054) (#1064)
• Fix stale full pipeline benchmark numbers in README (#1077) (#1079)
• Fix duplicate prefix numbers in user guide notebooks (#1076) (#1078)
• Memory-safe rechunk, preview chunk budget, plot improvements (#1075)
• Reduce dask graph size for large raster reprojection (#1065)
• Speed up cost_distance iterative tile Dijkstra 2-4x (#1023)
• Faster polygonize: single-pass tracing, JIT merge helpers, batch shapely (#1010)
• Rename GeoTIFF API to xarray conventions (#1047) (#1061)
• Section index in README feature matrix (#1033) (#1034)
• Dask example for reproject (#1066)
• Porto taxi trajectory rasterization example (#1022)
• Polygonize benchmark comparing xrspatial vs rasterio (#1006) (#1007)