Table 1 Summary of the climate forcing scenarios. Each forcing scenario was constructed by combining one of the two proxy-based air temperature records (PA and MA1)28,29 with one of the two proxy-based precipitation records (MA1 and TML1)29,30. Initial glacier volume (Vice) is presented relative to the combined modern volumes of the HPS19, Penguin, and Europa glaciers (308 km3; 100%) as simulated in our default model initialization step (Methods “model initialization”).

From: Precipitation drives western Patagonian glacier variability and may curb future ice mass loss

Simulation

Temperature record

Precipitation record

Initial conditions (at 4.2 kyr b2k)

   

∆Tt (°C)

∆Pt

Vice (km3)

#1

MA1 stalagmite record

MA1 stalagmite record

-1.04

0.94

305 (99%)

#2

MA1 stalagmite record

TML1 lake-sediment record

-1.04

1.24

342 (111%)

#3

PA chironomid record

MA1 stalagmite record

+ 2.20

0.94

205 (67%)

#4

PA chironomid record

TML1 lake-sediment record

+ 2.20

1.24

295 (96%)