Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan Plateau
Glacier albedo plays a critical role in surface-atmosphere energy exchange, the variability of which influences glacier mass balance as well as water resources. Dongkemadi glacier in central Tibetan Plateau was selected as study area; this research used field measurements to verify Landsat TM-derive...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2015/852098 |
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| author | Jie Wang Yuhuan Cui Xiaobo He Jian Zhang Shijiang Yan |
| author_facet | Jie Wang Yuhuan Cui Xiaobo He Jian Zhang Shijiang Yan |
| author_sort | Jie Wang |
| collection | DOAJ |
| description | Glacier albedo plays a critical role in surface-atmosphere energy exchange, the variability of which influences glacier mass balance as well as water resources. Dongkemadi glacier in central Tibetan Plateau was selected as study area; this research used field measurements to verify Landsat TM-derived albedo and MOD10A1 albedo product and then analyzed the spatiotemporal variability of albedo over the glacier according to them, as well as its influence factors and the relationship with glacier mass balance. The spatial distribution of glacier albedo in winter did not vary with altitude and was determined by terrain shield, whereas, in summer, albedo increased with altitude and was only influenced by terrain shield at accumulation zone. During 2000–2009, albedo in summer decreased at a rate of 0.0052 per year and was influenced by air temperature and precipitation levels, whereas albedo in winter increased at a rate of 0.0045 per year, influenced by the level and frequency of precipitation. The annual variation of albedo in summer during 2000–2012 has the high relative to that of glacier mass balance measurement, which indicates that glacier albedo in the ablation period can be considered as a proxy for glacier mass balance. |
| format | Article |
| id | doaj-art-92a7b3a8a67b44d8bf9c52664f3ed473 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-92a7b3a8a67b44d8bf9c52664f3ed4732025-02-03T05:57:48ZengWileyAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/852098852098Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan PlateauJie Wang0Yuhuan Cui1Xiaobo He2Jian Zhang3Shijiang Yan4School of Resources and Environmental Engineering, Anhui University, Hefei 230601, ChinaSchool of Science, Anhui Agriculture University, Hefei 230601, ChinaState Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, ChinaState Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, ChinaSchool of Resources and Environmental Engineering, Anhui University, Hefei 230601, ChinaGlacier albedo plays a critical role in surface-atmosphere energy exchange, the variability of which influences glacier mass balance as well as water resources. Dongkemadi glacier in central Tibetan Plateau was selected as study area; this research used field measurements to verify Landsat TM-derived albedo and MOD10A1 albedo product and then analyzed the spatiotemporal variability of albedo over the glacier according to them, as well as its influence factors and the relationship with glacier mass balance. The spatial distribution of glacier albedo in winter did not vary with altitude and was determined by terrain shield, whereas, in summer, albedo increased with altitude and was only influenced by terrain shield at accumulation zone. During 2000–2009, albedo in summer decreased at a rate of 0.0052 per year and was influenced by air temperature and precipitation levels, whereas albedo in winter increased at a rate of 0.0045 per year, influenced by the level and frequency of precipitation. The annual variation of albedo in summer during 2000–2012 has the high relative to that of glacier mass balance measurement, which indicates that glacier albedo in the ablation period can be considered as a proxy for glacier mass balance.http://dx.doi.org/10.1155/2015/852098 |
| spellingShingle | Jie Wang Yuhuan Cui Xiaobo He Jian Zhang Shijiang Yan Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan Plateau Advances in Meteorology |
| title | Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan Plateau |
| title_full | Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan Plateau |
| title_fullStr | Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan Plateau |
| title_full_unstemmed | Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan Plateau |
| title_short | Surface Albedo Variation and Its Influencing Factors over Dongkemadi Glacier, Central Tibetan Plateau |
| title_sort | surface albedo variation and its influencing factors over dongkemadi glacier central tibetan plateau |
| url | http://dx.doi.org/10.1155/2015/852098 |
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