Historic coastline age raster (AGE 2019)

  • Johannes De Groeve (Contributor)
  • Buntarou Kusumoto (Contributor)
  • Erik Koene (Contributor)
  • W. Daniel Kissling (Contributor)
  • Arie C. Seijmonsbergen (Contributor)
  • Bert Hoeksema (Contributor)
  • Moriaki Yasuhara (Contributor)
  • Sietze J. Norder (Contributor)
  • Sri Yudawati Cahyarini (Contributor)
  • Alexandra van der Geer (Contributor)
  • Hanneke J. M. Meijer (Contributor)
  • Yasuhiro Kubota (Contributor)
  • Kenneth F. Rijsdijk (Contributor)

Dataset

Description

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
Date made available12-Jul-2022
PublisherUniversiteit van Amsterdam

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