H2020Индивидуална стипендия2017–2019

GrIS-Melt · Impacts of Greenland Ice Sheet melt on primary productivity and carbon cycling in Greenland coastal ecosystems

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-07-01 → 2019-08-09
Финансиране от ЕС: 200 195 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Топенето на леденото покривало на Гренландия променя състава на крайбрежните води, като например влияе върху хранителните вещества и светлината за микроорганизмите. Това помага за предвиждане на бъдещата продуктивност на морските екосистеми и риболова в региона.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Impacts of Greenland Ice Sheet melt on primary productivity and carbon cycling in Greenland coastal ecosystems

Anthropogenic climate warming is causing the Greenland Ice Sheet (GrIS) to melt at accelerating rates. This melting contributes to the increasing the freshwater content of the Arctic Ocean. Freshwater run-off from the GrIS influences circulation patterns and stratification of the water column and also introduces large fluxes of allochthonous matter into the Greenland coastal environment, both of which have the potential to influence microbial carbon cycling. Changing patterns of circulation and stratification have the potential to effect water column mixing and thus nutrient supply to primary producers, while introduction of particles and suspended sediments can limit light availability to primary producers and provide increased surface area for bacterial activity. Recent studies also documented that GrIS melt water contains significant amounts of bioavailable organic carbon, which could provide subsidies to microbial communities in the fjord, but the overall impact of this is unknown. Until now, studies have focused on quantifying the flux of allochthonous matter and nutrients in GrIS melt water to the fjords, and merely assuming its impact on carbon cycling. The aim of this study is to actually quantify the downstream impacts of GrIS melt and its constituents on primary production and carbon cycling. Primary producers are the base of the marine food web and support commercial and sustenance fisheries along the Greenland coast. Melting of the GrIS is expected to intensify in the future. Thus, this project proposes a timely effort to determine the impact of GrIS melt water on productivity and carbon cycling in the Greenland coastal ecosystem, the results of which can be used by climate scientist and fisheries managers to predict the future productivity of a locally and globally important ecosystem.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Due to recent anthropogenic climate warming, the Greenland Ice Sheet (GrIS) is melting at accelerating rates, increasing the freshwater content of the Arctic Ocean. Freshwater run-off from the GrIS influences circulation patterns and stratification of the water column and also introduces large fluxes of allochthonous organic and inorganic matter into the Greenland coastal environment, both of which have the potential to influence microbial carbon cycling. Changing patterns of circulation and stratification have the potential to effect water column mixing and thus nutrient supply to primary producers, while introduction of particles and suspended sediments can limit light availability to primary producers and provide increased surface area for bacterial activity. Recent studies also documented that GrIS melt water contains significant amounts of bioavailable organic carbon and nutrients, which could provide subsidies to the microbial community, but the impact is unknown. At present, studies have only quantified the effects of GrIS melt water on the physical and chemical environment of Greenland fjords, no studies have addressed the physicochemical effects of melt water and its allochthonous constituents on ecosystem carbon cycling, making it difficult to estimate how increased melting is altering the productivity regimes in coastal marine ecosystem around Greenland. Primary production is the base of the marine food web and supports commercial and sustenance fisheries along the Greenland coast. Melting of the GrIS is expected to intensify in the future. Thus, this project proposes a timely effort to determine the impact of GrIS melt water on productivity and carbon cycling in the Greenland coastal ecosystem, the results of which can be used by climate scientist and fisheries managers to predict the future productivity of an locally and globally important ecosystem.

Оригинален текст от CORDIS (на английски).

Участници

AARHUS UNIVERSITET · Aarhus CКоординаторДания