Antarctic Snowfall & Ice Mass Balance Explorer

Climate Science Workbench • 2021–2023 Analysis

Atmospheric & Ice Shelf Dynamic Simulator

Net Accumulation Gain
Physics Model: Warm sea surface anomalies drive atmospheric rivers toward the polar vortex, amplifying precipitation over the continental plateau. Meanwhile, marine-terminating glaciers discharge ice through calving and basal melting along the coastal edge.
SCENARIO PRESETS

Balance Controls & Mass Budget

Tropical Warmth Anomaly +1.4 °C
Higher anomalies warm low-latitude oceans and evaporate more atmospheric vapor.
Moisture Transport Rate Multiplier 1.25x
Atmospheric circulation efficiency pushing moisture over the transantarctic interior.
Annual Glacier Discharge & Calving 2155 Gt/yr
Ice lost to icebergs and basal ocean shelf melt (e.g. Thwaites & Pine Island glaciers).
NET ANNUAL MASS BALANCE
+695 Gt
Continent is storing ice, mitigating sea-level rise
Annual Snowfall 2850 Gt Surface mass accumulation
Glacier Discharge 2155 Gt Calving & sub-shelf melting
Sea Level Equivalent -1.92 mm Global ocean level impact
Equilibrium Offset +32.2 % Above baseline discharge