Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016
The Arctic freshwater budget is critical for understanding the climate in the northern regions. However, the hydrology of the Arctic circumpolar tundra region (ACTR) and the largest pan-Arctic rivers are still not well understood. In this paper, we analyze the spatiotemporal variations in the terres...
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ftird:oai:ird.fr:fdi:010073115 2023-05-15T14:22:43+02:00 Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016 Suzuki, K. Matsuo, K. Yamazaki, D. Ichii, K. Iijima, Y. Papa, Fabrice Yanagi, Y. Hiyama, T. ARCTIQUE 2018 text/pdf http://www.documentation.ird.fr/hor/fdi:010073115 EN eng http://www.documentation.ird.fr/hor/fdi:010073115 oai:ird.fr:fdi:010073115 Suzuki K., Matsuo K., Yamazaki D., Ichii K., Iijima Y., Papa Fabrice, Yanagi Y., Hiyama T. Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016. Remote Sensing, 2018, 10 (3), p. art. 402 [20 p.]. Arctic hydrological cycle terrestrial water storage satellite gravimetry observation permafrost distribution global land data assimilation system text 2018 ftird 2020-08-21T06:49:48Z The Arctic freshwater budget is critical for understanding the climate in the northern regions. However, the hydrology of the Arctic circumpolar tundra region (ACTR) and the largest pan-Arctic rivers are still not well understood. In this paper, we analyze the spatiotemporal variations in the terrestrial water storage (TWS) of the ACTR and three of the largest pan-Arctic river basins (Lena, Mackenzie, Yukon). To do this, we utilize monthly Gravity Recovery and Climate Experiment (GRACE) data from 2002 to 2016. Together with global land reanalysis, and river runoff data, we identify declining TWS trends throughout the ACTR that we attribute largely to increasing evapotranspiration driven by increasing summer air temperatures. In terms of regional changes, large and significant negative trends in TWS are observed mainly over the North American continent. At basin scale, we show that, in the Lena River basin, the autumnal TWS signal persists until the spring of the following year, while in the Mackenzie River basin, the TWS level in the autumn and winter has no significant impact on the following year. As expected global warming is expected to be particularly significant in the northern regions, our results are important for understanding future TWS trends, with possible further decline. Text Arctic Arctic Arctique* Global warming lena river Mackenzie river permafrost Tundra Yukon IRD (Institute de recherche pour le développement): Horizon Arctic Yukon Mackenzie River |
institution |
Open Polar |
collection |
IRD (Institute de recherche pour le développement): Horizon |
op_collection_id |
ftird |
language |
English |
topic |
Arctic hydrological cycle terrestrial water storage satellite gravimetry observation permafrost distribution global land data assimilation system |
spellingShingle |
Arctic hydrological cycle terrestrial water storage satellite gravimetry observation permafrost distribution global land data assimilation system Suzuki, K. Matsuo, K. Yamazaki, D. Ichii, K. Iijima, Y. Papa, Fabrice Yanagi, Y. Hiyama, T. Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016 |
topic_facet |
Arctic hydrological cycle terrestrial water storage satellite gravimetry observation permafrost distribution global land data assimilation system |
description |
The Arctic freshwater budget is critical for understanding the climate in the northern regions. However, the hydrology of the Arctic circumpolar tundra region (ACTR) and the largest pan-Arctic rivers are still not well understood. In this paper, we analyze the spatiotemporal variations in the terrestrial water storage (TWS) of the ACTR and three of the largest pan-Arctic river basins (Lena, Mackenzie, Yukon). To do this, we utilize monthly Gravity Recovery and Climate Experiment (GRACE) data from 2002 to 2016. Together with global land reanalysis, and river runoff data, we identify declining TWS trends throughout the ACTR that we attribute largely to increasing evapotranspiration driven by increasing summer air temperatures. In terms of regional changes, large and significant negative trends in TWS are observed mainly over the North American continent. At basin scale, we show that, in the Lena River basin, the autumnal TWS signal persists until the spring of the following year, while in the Mackenzie River basin, the TWS level in the autumn and winter has no significant impact on the following year. As expected global warming is expected to be particularly significant in the northern regions, our results are important for understanding future TWS trends, with possible further decline. |
format |
Text |
author |
Suzuki, K. Matsuo, K. Yamazaki, D. Ichii, K. Iijima, Y. Papa, Fabrice Yanagi, Y. Hiyama, T. |
author_facet |
Suzuki, K. Matsuo, K. Yamazaki, D. Ichii, K. Iijima, Y. Papa, Fabrice Yanagi, Y. Hiyama, T. |
author_sort |
Suzuki, K. |
title |
Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016 |
title_short |
Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016 |
title_full |
Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016 |
title_fullStr |
Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016 |
title_full_unstemmed |
Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016 |
title_sort |
hydrological variability and changes in the arctic circumpolar tundra and the three largest pan-arctic river basins from 2002 to 2016 |
publishDate |
2018 |
url |
http://www.documentation.ird.fr/hor/fdi:010073115 |
op_coverage |
ARCTIQUE |
geographic |
Arctic Yukon Mackenzie River |
geographic_facet |
Arctic Yukon Mackenzie River |
genre |
Arctic Arctic Arctique* Global warming lena river Mackenzie river permafrost Tundra Yukon |
genre_facet |
Arctic Arctic Arctique* Global warming lena river Mackenzie river permafrost Tundra Yukon |
op_relation |
http://www.documentation.ird.fr/hor/fdi:010073115 oai:ird.fr:fdi:010073115 Suzuki K., Matsuo K., Yamazaki D., Ichii K., Iijima Y., Papa Fabrice, Yanagi Y., Hiyama T. Hydrological variability and changes in the Arctic circumpolar tundra and the three largest pan-Arctic river basins from 2002 to 2016. Remote Sensing, 2018, 10 (3), p. art. 402 [20 p.]. |
_version_ |
1766295250794446848 |