Hydroclimate and cryospheric changes in the Russian High Arctic
The High Arctic is assumed to be the last reserve of a stable cryosphere. Recent publications from the Canadian High Arctic indicate, however, that changes are currently happening much faster than expected, and the future trajectory is unknown. The rate and magnitude of recent climate warming has im...
Main Authors: | , , , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
Reports of Polar and Marine Research 762
2022
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/56270/ https://hdl.handle.net/10013/epic.81338b07-538c-4637-81ee-6d749b889b2b |
id |
ftawi:oai:epic.awi.de:56270 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:56270 2023-05-15T14:23:28+02:00 Hydroclimate and cryospheric changes in the Russian High Arctic Meyer, Hanno Opel, Thomas Tessendorf, Tabea Arctic Century, team 2022 https://epic.awi.de/id/eprint/56270/ https://hdl.handle.net/10013/epic.81338b07-538c-4637-81ee-6d749b889b2b unknown Reports of Polar and Marine Research 762 Meyer, H. orcid:0000-0003-4129-4706 , Opel, T. orcid:0000-0003-1315-8256 , Tessendorf, T. and Arctic Century, t. (2022) Hydroclimate and cryospheric changes in the Russian High Arctic , 8th International Polar Conference, Potsdam, Germany, 1 May 2022 - 5 May 2022 . hdl:10013/epic.81338b07-538c-4637-81ee-6d749b889b2b EPIC38th International Polar Conference, Potsdam, Germany, 2022-05-01-2022-05-05Potsdam, Germany, Reports of Polar and Marine Research 762 Conference notRev 2022 ftawi 2022-06-19T23:12:19Z The High Arctic is assumed to be the last reserve of a stable cryosphere. Recent publications from the Canadian High Arctic indicate, however, that changes are currently happening much faster than expected, and the future trajectory is unknown. The rate and magnitude of recent climate warming has implications for the stability of ice, especially in the far north. Moreover, air temperatures at unprecedently high levels lead to drastic retreat in sea ice extent, larger and longer ice-free shelf seas, which now may act as a “new Arctic” moisture source with clear impact on the regional hydrological and cryospheric processes. Terrestrial ice (glaciers and ice caps, ice fraction in permafrost) in the high Russian Arctic is expected to change. This terrestrial ice is a freshwater inventory on land or that has been preserved in a stable state for hundreds of years. It contains unique information about past and present climate changes which is stored in the terrestrial ice to be studied, i.e. with stable isotope methods. In this presentation, we focus on the stable hydrogen and oxygen isotopes as a unifying proxy employed for addressing cryospheric, atmospheric, marine and terrestrial research questions In the framework of the Arctic Century 2021 expedition, we addressed the hydroclimate situation of High Arctic Islands, by studying firn/ice cores from three visited ice caps. Here, Windy Ice Dome (WD, Franz-Josef-Land) and Akademii Nauk ice cap (AN, Severnaya Zemlya) have been revisited and cored after more than 20 years, now complementing earlier longer ice cores. The University ice cap (UN, Severnaya Zemlya) has been cored for the first time. Key observations were intensive near-surface melt processes inducing the percolation of meltwater, numerous thick melt layers (reaching up to 80 cm), as well as liquid water in the borehole at AN and UN ice caps complicated drilling. The ice-coring program (5 cores, 27.2 m of core) has been accompanied by snow sampling (N=126) and an extensive hydrological program including 170 ... Conference Object Arctic Arctic Franz Josef Land Ice Ice cap permafrost Sea ice Severnaya Zemlya Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Franz Josef Land ENVELOPE(55.000,55.000,81.000,81.000) Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The High Arctic is assumed to be the last reserve of a stable cryosphere. Recent publications from the Canadian High Arctic indicate, however, that changes are currently happening much faster than expected, and the future trajectory is unknown. The rate and magnitude of recent climate warming has implications for the stability of ice, especially in the far north. Moreover, air temperatures at unprecedently high levels lead to drastic retreat in sea ice extent, larger and longer ice-free shelf seas, which now may act as a “new Arctic” moisture source with clear impact on the regional hydrological and cryospheric processes. Terrestrial ice (glaciers and ice caps, ice fraction in permafrost) in the high Russian Arctic is expected to change. This terrestrial ice is a freshwater inventory on land or that has been preserved in a stable state for hundreds of years. It contains unique information about past and present climate changes which is stored in the terrestrial ice to be studied, i.e. with stable isotope methods. In this presentation, we focus on the stable hydrogen and oxygen isotopes as a unifying proxy employed for addressing cryospheric, atmospheric, marine and terrestrial research questions In the framework of the Arctic Century 2021 expedition, we addressed the hydroclimate situation of High Arctic Islands, by studying firn/ice cores from three visited ice caps. Here, Windy Ice Dome (WD, Franz-Josef-Land) and Akademii Nauk ice cap (AN, Severnaya Zemlya) have been revisited and cored after more than 20 years, now complementing earlier longer ice cores. The University ice cap (UN, Severnaya Zemlya) has been cored for the first time. Key observations were intensive near-surface melt processes inducing the percolation of meltwater, numerous thick melt layers (reaching up to 80 cm), as well as liquid water in the borehole at AN and UN ice caps complicated drilling. The ice-coring program (5 cores, 27.2 m of core) has been accompanied by snow sampling (N=126) and an extensive hydrological program including 170 ... |
format |
Conference Object |
author |
Meyer, Hanno Opel, Thomas Tessendorf, Tabea Arctic Century, team |
spellingShingle |
Meyer, Hanno Opel, Thomas Tessendorf, Tabea Arctic Century, team Hydroclimate and cryospheric changes in the Russian High Arctic |
author_facet |
Meyer, Hanno Opel, Thomas Tessendorf, Tabea Arctic Century, team |
author_sort |
Meyer, Hanno |
title |
Hydroclimate and cryospheric changes in the Russian High Arctic |
title_short |
Hydroclimate and cryospheric changes in the Russian High Arctic |
title_full |
Hydroclimate and cryospheric changes in the Russian High Arctic |
title_fullStr |
Hydroclimate and cryospheric changes in the Russian High Arctic |
title_full_unstemmed |
Hydroclimate and cryospheric changes in the Russian High Arctic |
title_sort |
hydroclimate and cryospheric changes in the russian high arctic |
publisher |
Reports of Polar and Marine Research 762 |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/56270/ https://hdl.handle.net/10013/epic.81338b07-538c-4637-81ee-6d749b889b2b |
long_lat |
ENVELOPE(55.000,55.000,81.000,81.000) ENVELOPE(98.000,98.000,79.500,79.500) |
geographic |
Arctic Franz Josef Land Severnaya Zemlya |
geographic_facet |
Arctic Franz Josef Land Severnaya Zemlya |
genre |
Arctic Arctic Franz Josef Land Ice Ice cap permafrost Sea ice Severnaya Zemlya |
genre_facet |
Arctic Arctic Franz Josef Land Ice Ice cap permafrost Sea ice Severnaya Zemlya |
op_source |
EPIC38th International Polar Conference, Potsdam, Germany, 2022-05-01-2022-05-05Potsdam, Germany, Reports of Polar and Marine Research 762 |
op_relation |
Meyer, H. orcid:0000-0003-4129-4706 , Opel, T. orcid:0000-0003-1315-8256 , Tessendorf, T. and Arctic Century, t. (2022) Hydroclimate and cryospheric changes in the Russian High Arctic , 8th International Polar Conference, Potsdam, Germany, 1 May 2022 - 5 May 2022 . hdl:10013/epic.81338b07-538c-4637-81ee-6d749b889b2b |
_version_ |
1766296017029824512 |