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Shelf sea extent rasters (SLW140 2021)

dataset
posted on 12.07.2022, 12:35 authored by Johannes De GroeveJohannes De Groeve, Buntarou KusumotoBuntarou Kusumoto, Erik Koene, W.D. KisslingW.D. Kissling, A.C. SeijmonsbergenA.C. Seijmonsbergen, Bert W. Hoeksema, Moriaki YasuharaMoriaki Yasuhara, Sietze Johannes Norder, Sri Yudawati Cahyarini, Alexandra van der GeerAlexandra van der Geer, Hanneke J. M. Meijer, Yasuhiro Kubota, Kenneth F Rijsdijk

DESCRIPTION:  


Global paleoreconstruction of shelf sea extent for every 500 yr time period using the global bathymetric model (GEBCO 2021) 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). 


MAPPED CATEGORIES:  


0 = > 0 m BPSL (Below Past Sea Level) 

1 = Between 0 and -140 m BPSL  


MAPPED NA VALUES:  


No Data = < -140 m BPSL  


SPATIAL RESOLUTION:  


The spatial resolution of the dataset is a factor 8 of the original GEBCO.  


TEMPORAL RESOLUTION:  


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.  


Directory naming: 

structure: //SLW..asc 

example: 10/010-020/SLW.005.asc 

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.  


File naming: 

structure: SLW.tif 

example: SLW005.tif 

description: Global shelf sea extent map for 500 yr BP.  



History

Retention period

15/07/2032