Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades
Trends in the duration or extent of snow cover are expected to feedback to temperature trends. We analyzed trends in dates of onset and termination of snow cover in relation to temperature over the past 27 years (1980–2006) from over 636 meteorological stations in the Northern Hemisphere. Different...
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Format: | Article |
Language: | English |
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IOP Publishing
2013-01-01
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Series: | Environmental Research Letters |
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Online Access: | https://doi.org/10.1088/1748-9326/8/1/014008 |
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author | Shushi Peng Shilong Piao Philippe Ciais Pierre Friedlingstein Liming Zhou Tao Wang |
author_facet | Shushi Peng Shilong Piao Philippe Ciais Pierre Friedlingstein Liming Zhou Tao Wang |
author_sort | Shushi Peng |
collection | DOAJ |
description | Trends in the duration or extent of snow cover are expected to feedback to temperature trends. We analyzed trends in dates of onset and termination of snow cover in relation to temperature over the past 27 years (1980–2006) from over 636 meteorological stations in the Northern Hemisphere. Different trends in snow duration are observed over North America and Eurasia. Over North America, the termination date of snow cover remained stable during the 27 years, whereas over Eurasia it has advanced by 2.6 ± 5.6 d decade ^−1 . Earlier snow cover termination is systematically correlated on a year-to-year basis with a positive temperature anomaly during the snowmelt month with a sensitivity of −0.077 °C d ^−1 . These snow feedbacks to air temperature are more important in spring, because high net radiation is coupled with thin snow cover. |
first_indexed | 2024-03-12T16:06:02Z |
format | Article |
id | doaj.art-e4c3087749e74aacae95fd98fbe63307 |
institution | Directory Open Access Journal |
issn | 1748-9326 |
language | English |
last_indexed | 2024-03-12T16:06:02Z |
publishDate | 2013-01-01 |
publisher | IOP Publishing |
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series | Environmental Research Letters |
spelling | doaj.art-e4c3087749e74aacae95fd98fbe633072023-08-09T14:24:06ZengIOP PublishingEnvironmental Research Letters1748-93262013-01-018101400810.1088/1748-9326/8/1/014008Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decadesShushi Peng0Shilong Piao1Philippe Ciais2Pierre Friedlingstein3Liming Zhou4Tao Wang5Department of Ecology, College of Urban and Environmental Sciences, Peking University , Beijing 100871, People’s Republic of ChinaDepartment of Ecology, College of Urban and Environmental Sciences, Peking University , Beijing 100871, People’s Republic of China; Institute of Tibetan Plateau Research, Chinese Academy of Sciences , Beijing 100085, People’s Republic of ChinaLSCE, UMR CEA-CNRS-UVSQ, CEA , L’Orme des Merisiers, F-91191 Gif-sur-Yvette, FranceQUEST/Department of Earth Sciences, University of Bristol , Bristol BS8 1RJ, UKDepartment of Atmospheric and Environmental Sciences, State University of New York , Albany, NY 12222, USALSCE, UMR CEA-CNRS-UVSQ, CEA , L’Orme des Merisiers, F-91191 Gif-sur-Yvette, FranceTrends in the duration or extent of snow cover are expected to feedback to temperature trends. We analyzed trends in dates of onset and termination of snow cover in relation to temperature over the past 27 years (1980–2006) from over 636 meteorological stations in the Northern Hemisphere. Different trends in snow duration are observed over North America and Eurasia. Over North America, the termination date of snow cover remained stable during the 27 years, whereas over Eurasia it has advanced by 2.6 ± 5.6 d decade ^−1 . Earlier snow cover termination is systematically correlated on a year-to-year basis with a positive temperature anomaly during the snowmelt month with a sensitivity of −0.077 °C d ^−1 . These snow feedbacks to air temperature are more important in spring, because high net radiation is coupled with thin snow cover.https://doi.org/10.1088/1748-9326/8/1/014008climate changeclimate feedbackglobal warmingsnow phenology |
spellingShingle | Shushi Peng Shilong Piao Philippe Ciais Pierre Friedlingstein Liming Zhou Tao Wang Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades Environmental Research Letters climate change climate feedback global warming snow phenology |
title | Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades |
title_full | Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades |
title_fullStr | Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades |
title_full_unstemmed | Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades |
title_short | Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades |
title_sort | change in snow phenology and its potential feedback to temperature in the northern hemisphere over the last three decades |
topic | climate change climate feedback global warming snow phenology |
url | https://doi.org/10.1088/1748-9326/8/1/014008 |
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