Fig. 1: Input data layers used to run the physiography model.
From: Physiography, foraging mobility, and the first peopling of Sahul
a Sahul topography around 65 ka obtained from regional and global-scale digital elevation models9 assuming a coastline at −85 m isobath. The inset map shows modern coastlines superimposed on the coastline of Sahul during the approximate time of first human arrival (PNG: Papua New Guinea, NT: Northern Territory, WA: Western Australia, QLD: Queensland, SA: South Australia, NSW: New South Wales, VIC: Victoria). Archaeological sites older than 35 ka9 with their site ID (defined in Supplementary Tab. 1 – BHP: Bird’s Head Peninsula, NGCC: New Guinea Central Cordillera, OSR: Owen Stanley Range, LC: Lake Carpentaria, AL: Arnhem Land, K: Kimberley, LE: Lake Eyre, MDRS: Murray-Darling River system, GAB: Great Australian Bight). b Sahul precipitation distribution from 75 to 35 ka and averaged from the multiple time slices (available every 2 kyr) based on the HadCM3 climate model36. c Distribution of precipitation anomalies for each archaeological site (Supplementary Tab. 1) over the simulated time interval. All data are available under Creative Commons Attribution 4.0 International Licence (http://creativecommons.org/licenses/). The open-source python interface for the Generic Mapping Tools (https://www.pygmt.org) is used for visualisation.
