From land to fjords: The review of Svalbard hydrology from 1970 to 2019 (SvalHydro)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00122818" target="_blank" >RIV/00216224:14310/21:00122818 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.5281/zenodo.4294063" target="_blank" >https://doi.org/10.5281/zenodo.4294063</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5281/zenodo.4294063" target="_blank" >10.5281/zenodo.4294063</a>

Jazyk výsledku

angličtina

Název v původním jazyce

From land to fjords: The review of Svalbard hydrology from 1970 to 2019 (SvalHydro)

Popis výsledku v původním jazyce

Svalbard was long seen as a canary in the coalmine for climate change. Now this early warning system has suffered irreparable damage. Svalbard has warmed 2-6 times faster than the rest of the world, and we can expect further increase in air temperature (by 4–7°C), precipitation (by 45–65%) and more frequent heavy rainfall and floods. Contrary to predictions from regional climate models, freshwater fluxes from some glacierised catchments have steadily decreased for over a decade. Yet in rainfall dominated watersheds, water discharge has been increasing. To understand the implications, we must improve hydrological research in Svalbard. Ground newly uncovered by receding glaciers develops permafrost when exposed to harsh Arctic winters. Simultaneously, permafrost thaw produces new water sources and flowpaths. Current hydrogeological models do not account for such complexity. The boundaries of the hydrological year have shifted due to earlier onset of snowmelt, and later freeze up. Other weaknesses in hydrological research come from scarcity of long-term monitoring, outdated methods and data for evaporation and condensation and a lack of data on precipitation change with elevation. As every new broken record reminds us, it is more urgent than ever to understand Svalbard’s hydrology.

Název v anglickém jazyce

From land to fjords: The review of Svalbard hydrology from 1970 to 2019 (SvalHydro)

Popis výsledku anglicky

Svalbard was long seen as a canary in the coalmine for climate change. Now this early warning system has suffered irreparable damage. Svalbard has warmed 2-6 times faster than the rest of the world, and we can expect further increase in air temperature (by 4–7°C), precipitation (by 45–65%) and more frequent heavy rainfall and floods. Contrary to predictions from regional climate models, freshwater fluxes from some glacierised catchments have steadily decreased for over a decade. Yet in rainfall dominated watersheds, water discharge has been increasing. To understand the implications, we must improve hydrological research in Svalbard. Ground newly uncovered by receding glaciers develops permafrost when exposed to harsh Arctic winters. Simultaneously, permafrost thaw produces new water sources and flowpaths. Current hydrogeological models do not account for such complexity. The boundaries of the hydrological year have shifted due to earlier onset of snowmelt, and later freeze up. Other weaknesses in hydrological research come from scarcity of long-term monitoring, outdated methods and data for evaporation and condensation and a lack of data on precipitation change with elevation. As every new broken record reminds us, it is more urgent than ever to understand Svalbard’s hydrology.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

10501 - Hydrology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

SESS Report 2020 – The State of Environmental Science in Svalbard – an annual report

ISBN

9788269152890

Počet stran výsledku

26

Strana od-do

176-201

Počet stran knihy

284

Název nakladatele

Svalbard Integrated Arctic Earth Observing System (SIOS)

Místo vydání

Longyearbyen

Kód UT WoS kapitoly

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