New data, new techniques and new challenges for updating the state of Svalbard glaciers (SvalGlac)статья Глава в книге

Дата последнего поиска статьи во внешних источниках: 17 июня 2020 г.

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1. Полный текст полный текст главы SESS_2019_04_SvalGlac_1.pdf 1,4 МБ 28 января 2020 [GlazovskyAF]

[1] New data, new techniques and new challenges for updating the state of svalbard glaciers (svalglac) / T. V. Schuler, A. Glazovsky, J. O. Hagen et al. // SESS report 2019, Svalbard Integrated Arctic Earth Observing System. — Longyearbyen, 2019. — P. 108–134. Glaciers and ice caps are among the most eye-catching indicators documenting changes in the global climate. Svalbard holds only a tiny fraction of the glacier area in the Arctic, but represents a wide range of glacier types. All reported pan-Svalbard estimates show a decrease in glacier mass balance, likely as a result of atmospheric and oceanic warming. Fast glacial retreat in Svalbard causes expansion of fjords and proglacial areas, and increases freshwater input into marine environments, influencing regional albedo and energy balance. Collaborative research programmes across (and outside) the glaciological community are required to better assess the future evolution of glacier cover. Long-term in situ measurements and models focus on surface ablation. Frontal ablation, however, is understudied. Estimates of ablation processes at the glacier front – calving and submarine melting – have hitherto been forced to rely on outdated information and low-resolution methods. Long-term trends and changes in seasonal calving patterns can be now observed in near real-time with cryoseismological monitoring. Expansion of the seismological network and integration of seismic observations with other monitoring methods are expected to provide a more accurate and more complete quantification of the global warming footprint on Svalbard’s cryosphere.

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