Supporting data for region-shared coordinate decoding in polyhedral discrete global grids

This dataset supports the study "Region-shared coordinate decoding for polyhedral discrete global grids through spatial consistency of decoding states" and is compatible with the RSCD implementation at https://gitee.com/guhua-pig/RSCD (revision 4331ec2d842bede5c0fd6b9c49e5b1811442142d). Version 2 contains 84 input datasets in RSCDDG1 version 1 format, with the .rscd extension. Every input stores its shared and special-region partition for direct use by the current decoder. Complete global ISEA4H, ISEA4D and RTEA4R grids at levels 5–12: 24 files. Complete Amazon basin ISEA4H selections at levels 7–12: 6 files. Compact and fragmented ISEA4H inputs at fixed level 11, with six sizes and three seeds: 36 files. Six irregular query shapes at level 11, with three layouts each: 18 files. The archive also contains four measurement summary tables and 2,640 individual formal observations: 1,950 decoding observations, 220 repeated-GPU observations, 50 memory-limited complete-output observations and 420 data-preparation observations. Each condition has five formal observations; warm-ups are excluded. File manifests provide cell and region counts, SHA-256 checksums and portable mappings between inputs and observations. English and Chinese usage instructions are included. The Amazon basin selection uses HydroBASINS South America level 3, version 1c, basin identifier 6030007000, in EPSG:4326. Cells are selected by centres strictly inside the basin. Source: HydroBASINS; Lehner and Grill (2013), doi:10.1002/hyp.9740.