This would greatly improve the retention systems ability to retain the majority or full volume of spring melt runoff.
In all cases, glaciers will recede but net glacier melt runoff will reach peak in about 2040.
Compared to a baseline run without assimilation, the SWE assimilation improved discharge for five of the seven study sites, in particular for high discharge magnitudes associated with snow melt runoff.
As each ice sheet melted, runoff and increased rainfall filled many of the region's closed basins, forming large pluvial lakes.
Glacier and snow cover changes with related impacts on melt runoff can seriously affect human societies which are depending on fresh water from cryospheric sources.
Prediction of snow-cover depletion and spring-melt runoff in arctic basins is particularly challenging due to the spatial heterogeneity of the snow-cover as a result of topographic and vegetation effects on snow accumulation, wind redistribution, and ablation processes.
Conversely, an unusually light winter snowfall causes older firn and ice of lower albedo to be exposed earlier in the summer, producing increased melt and runoff.
The last six summers since have seen successive record warmth and surface melt and runoff of that meltwater signalling increased mass loss from the ice sheet.
Seasonal ice velocity is influenced by several key components of the ice sheet-ocean-climate system, including the subglacial environment, surface melt and runoff, and ice-ocean interaction at the ice front (terminus) [ Joughin et al., 2012; Carr et al., 2013].
High erosion rate of seasonal thawed soils by snow- and ice-melting runoff in the high altitude and latitude cold regions has great impacts on ecological systems, industries, agriculture and various manmade infrastructures as well as people's lives.
