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Historic coastline age raster (AGE 2019)

dataset
posted on 12.07.2022, 13:39 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 paleo drowning map indicating the most recent 500 yr time period a pixel was land. The reconstruction was done 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).

MAPPED CATEGORIES:

from 0 to 260 in bins of 5 (e.g., 0, 5, 10, 15, 20, ..., 260; each bin corresponds to 500 yr)

0 = 0 yr BP
5 = 500 yr BP
10 = 1000 yr BP
...
...
100 = 10000 yr BP
...
...
200 = 20000 yr BP
...
...
260 = 26000 yr BP

MAPPED NA VALUES:

No Data = pixel has always been Below (Past) Sea Level since 26000 BP.

SPATIAL RESOLUTION:

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

TEMPORAL RESOLUTION:

Temporal mapping resolution is 500 yr.


DIRECTORY STRUCTURE:

The dataset is provided in two formats:

1. TILED IN ASCII (AGE_tiles.zip):

tiles of 10x10 degrees each representing the drowning age.

File naming:
structure: AGE--.asc
example: AGE-10-010-020.asc
description: Tile with drowning age from 0 to 10 degrees latitude, and 10 to 20 degrees longitude.

2. MOSAIC IN TIF (AGE_mosaic.tif):

Global drowning map.

File naming:
structure: AGE.tif
example: AGE.tif
description: Global drowning map

History

Retention period

15/07/2032