• antarctic ice sheet: Transient simulation of Antarctic ice-sheet over past 784,000 years using Penn State Ice-sheet model and LOVECLIM transient climate forcing.
  • antarctic ice sheet control 784k 40km: This is the same simulation as the full 784k simulation entitled ‘antarctic-ice-sheet’, but performed at 40km resolution instead of 20km, for more direct comparison against the sensitivity runs.
  • antarctic ice sheet dtocn-1 784k 40km: For this simulation, the two-dimensional ocean temperature forcing was replaced with the time series of zonal average temperatures at 55ºS.
  • antarctic ice sheet dtocn-2 784k 40km: For this 784k simulation, the two-dimensional ocean temperature forcing was replaced with the time series of zonal average temperatures at 55ºS, multiplied by a factor of two.
  • antarctic ice sheet dtocn-5 784k 40km: For this 784k simulation, the two-dimensional ocean temperature forcing was replaced with the time series of zonal average temperatures at 55ºS, multiplied by a factor of five.
  • antarctic ice sheet dtocn-10 784k 40km: For this 784k simulation, the two-dimensional ocean temperature forcing was replaced with the time series of zonal average temperatures at 55ºS, multiplied by a factor of ten.
  • antarctic ice sheet forcepleist 408k 40km: For this 408k simulation, the climate forcing from LOVECLIM (atmospheric temperature, precipitation, ocean temperature) was replaced with the parameterized climate forcing originally used in Pollard & DeConto (2009), and later updated in Pollard & DeConto (2012).
  • antarctic ice sheet ot 408k 40km: For this 408k simulation, only the ocean temperature component of the full forcing was used to drive the ice sheet model.
  • antarctic ice sheet sc 408k 40km: For this 408k simulation, only the surface climate (atmospheric temperature and precipitation) component of the full forcing was used to drive the ice sheet model.
  • antarctic ice sheet sc+ot 408k 40km: For this 408k simulation, only the surface climate (atmospheric temperature and precipitation) and ocean temperature components of the full forcing were used to drive the ice sheet model.
  • antarctic ice sheet sl 408k 40km: For this 408k simulation, only the sea level component of the full forcing was used to drive the ice sheet model.
  • antarctic ice sheet sl+ot 408k 40km: For this 408k simulation, only the sea level and ocean temperature components of the full forcing were used to drive the ice sheet model.
  • antarctic ice sheet sl+sc 408k 40km: For this 408k simulation, only the sea level and surface climate (atmospheric temperature and precipitation) components of the full forcing were used to drive the ice sheet model.
  • arrival time: Time (ka) since last continuous human settlement for time-varying climate conditions following the transient scenario A simulation (early exit scenario)
  • climate forcing: Climate forcing for Human Dispersal Model over the past 125 ka
  • human density: 1000 year snapshots of the simulated evolution of human density (individuals per 100 km^2) over the past 125 thousand years using the parameters of scenario A (early exit) experiment