Siberian Lena River hydrologic regime and recent change
[1] The long-term (1935–1999) monthly records of temperature, precipitation, stream flow, river ice thickness, and active layer depth have been analyzed in this study to examine Lena River hydrologic regime and recent change. Remarkable hydrologic changes have been identified in this study. During t...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.649.6751 2023-05-15T16:37:36+02:00 Siberian Lena River hydrologic regime and recent change The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.649.6751 http://stephenschneider.stanford.edu/Publications/PDF_Papers/YangEtAl2002.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.649.6751 http://stephenschneider.stanford.edu/Publications/PDF_Papers/YangEtAl2002.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://stephenschneider.stanford.edu/Publications/PDF_Papers/YangEtAl2002.pdf hydrologic regime climate change Lena River text ftciteseerx 2016-01-08T16:17:58Z [1] The long-term (1935–1999) monthly records of temperature, precipitation, stream flow, river ice thickness, and active layer depth have been analyzed in this study to examine Lena River hydrologic regime and recent change. Remarkable hydrologic changes have been identified in this study. During the cold season (October–April), significant increases (25–90%) in stream flow and decrease in river ice thickness have been found due to warming in Siberia. In the snowmelt period (May–June), strong warming in spring leads to an advance of snowmelt season into late May and results in a lower daily maximum discharge in June. During summer months (July–September) the changes in stream flow hydrology are less significant in comparison to those for winter and spring seasons. A slight stream flow increase is discovered for both July and August, mainly owing to precipitation increase in May and June. Discharge in September has a slight downward trend due to precipitation decrease and temperature increase in August. The magnitudes of changes in stream flow and river ice thickness identified in this study are large enough to alter the hydrologic regime. Investigation into the hydrologic response of the Lena River to climate change and variation reveals strong linkages of stream flow with temperature and precipitation. We therefore believe that Lena River hydrologic regime changes are mainly the consequence of recent climate warming over Siberia and also closely related to changes in permafrost condition. INDEX TERMS: 1823 Hydrology: Text Ice lena river permafrost Siberia Unknown |
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English |
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hydrologic regime climate change Lena River |
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hydrologic regime climate change Lena River Siberian Lena River hydrologic regime and recent change |
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hydrologic regime climate change Lena River |
description |
[1] The long-term (1935–1999) monthly records of temperature, precipitation, stream flow, river ice thickness, and active layer depth have been analyzed in this study to examine Lena River hydrologic regime and recent change. Remarkable hydrologic changes have been identified in this study. During the cold season (October–April), significant increases (25–90%) in stream flow and decrease in river ice thickness have been found due to warming in Siberia. In the snowmelt period (May–June), strong warming in spring leads to an advance of snowmelt season into late May and results in a lower daily maximum discharge in June. During summer months (July–September) the changes in stream flow hydrology are less significant in comparison to those for winter and spring seasons. A slight stream flow increase is discovered for both July and August, mainly owing to precipitation increase in May and June. Discharge in September has a slight downward trend due to precipitation decrease and temperature increase in August. The magnitudes of changes in stream flow and river ice thickness identified in this study are large enough to alter the hydrologic regime. Investigation into the hydrologic response of the Lena River to climate change and variation reveals strong linkages of stream flow with temperature and precipitation. We therefore believe that Lena River hydrologic regime changes are mainly the consequence of recent climate warming over Siberia and also closely related to changes in permafrost condition. INDEX TERMS: 1823 Hydrology: |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
Siberian Lena River hydrologic regime and recent change |
title_short |
Siberian Lena River hydrologic regime and recent change |
title_full |
Siberian Lena River hydrologic regime and recent change |
title_fullStr |
Siberian Lena River hydrologic regime and recent change |
title_full_unstemmed |
Siberian Lena River hydrologic regime and recent change |
title_sort |
siberian lena river hydrologic regime and recent change |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.649.6751 http://stephenschneider.stanford.edu/Publications/PDF_Papers/YangEtAl2002.pdf |
genre |
Ice lena river permafrost Siberia |
genre_facet |
Ice lena river permafrost Siberia |
op_source |
http://stephenschneider.stanford.edu/Publications/PDF_Papers/YangEtAl2002.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.649.6751 http://stephenschneider.stanford.edu/Publications/PDF_Papers/YangEtAl2002.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766027901932666880 |