Shelf sea extent rasters (SLW140 2019)
Global paleoreconstruction of shelf sea extent for every 500 yr time period using the global bathymetric model (GEBCO 2019) and a state-of-the-art global spatiotemporal sea level curve. The global sea level curve was generated using the software SELEN4 (10.5281/zenodo.3520451) and raster DEMSRE3a (10.5281/zenodo.1637816).
0 = > 0 m BPSL (Below Past Sea Level)
1 = Between 0 and -140 m BPSL
MAPPED NA VALUES:
No Data = < -140 m BPSL
The spatial resolution of the dataset is a factor 8 of the original GEBCO.
A reconstruction is made for every 500 years from 0 BP to 26000 BP.
The dataset is provided in two formats:
1. TILED IN ASCII (SLW_tiles.zip):
53 tiles of 10x10 degrees per folder each representing shallow water for a 500 yr time period.
description: Tile with shelf sea extent from 0 to 10 degrees latitude, and 10 to 20 degrees longitude, for 500 yr BP.
2. MOSAIC IN TIF (SLW_mosaic.zip):
53 global maps each presenting shallow water for a 500 yr time period.
description: Global shelf sea extent map for 500 yr BP.