Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil Surface
Abstract Land surface albedo is a significant parameter for maintaining a balance in surface energy. It is also an important parameter of bare soil surface albedo for developing land surface process models that accurately reflect diurnal variation characteristics and the mechanism behind the solar s...
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| Language: | English |
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American Geophysical Union (AGU)
2017-12-01
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| Series: | Journal of Advances in Modeling Earth Systems |
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| Online Access: | https://doi.org/10.1002/2017MS001109 |
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| author | Zhiyuan Zheng Zhigang Wei Zhiping Wen Wenjie Dong Zhenchao Li Xiaohang Wen Xian Zhu Dong Ji Chen Chen Dongdong Yan |
| author_facet | Zhiyuan Zheng Zhigang Wei Zhiping Wen Wenjie Dong Zhenchao Li Xiaohang Wen Xian Zhu Dong Ji Chen Chen Dongdong Yan |
| author_sort | Zhiyuan Zheng |
| collection | DOAJ |
| description | Abstract Land surface albedo is a significant parameter for maintaining a balance in surface energy. It is also an important parameter of bare soil surface albedo for developing land surface process models that accurately reflect diurnal variation characteristics and the mechanism behind the solar spectral radiation albedo on bare soil surfaces and for understanding the relationships between climate factors and spectral radiation albedo. Using a data set of field observations, we conducted experiments to analyze the variation characteristics of land surface solar spectral radiation and the corresponding albedo over a typical Gobi bare soil underlying surface and to investigate the relationships between the land surface solar spectral radiation albedo, solar elevation angle, and soil moisture. Based on both solar elevation angle and soil moisture measurements simultaneously, we propose a new two‐factor parameterization scheme for spectral radiation albedo over bare soil underlying surfaces. The results of numerical simulation experiments show that the new parameterization scheme can more accurately depict the diurnal variation characteristics of bare soil surface albedo than the previous schemes. Solar elevation angle is one of the most important factors for parameterizing bare soil surface albedo and must be considered in the parameterization scheme, especially in arid and semiarid areas with low soil moisture content. This study reveals the characteristics and mechanism of the diurnal variation of bare soil surface solar spectral radiation albedo and is helpful in developing land surface process models, weather models, and climate models. |
| format | Article |
| id | doaj-art-d2c9fc54dde24bd3a266d7474177e4d3 |
| institution | Kabale University |
| issn | 1942-2466 |
| language | English |
| publishDate | 2017-12-01 |
| publisher | American Geophysical Union (AGU) |
| record_format | Article |
| series | Journal of Advances in Modeling Earth Systems |
| spelling | doaj-art-d2c9fc54dde24bd3a266d7474177e4d32025-08-20T03:47:24ZengAmerican Geophysical Union (AGU)Journal of Advances in Modeling Earth Systems1942-24662017-12-01983069308110.1002/2017MS001109Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil SurfaceZhiyuan Zheng0Zhigang Wei1Zhiping Wen2Wenjie Dong3Zhenchao Li4Xiaohang Wen5Xian Zhu6Dong Ji7Chen Chen8Dongdong Yan9Center for Monsoon and Environment ResearchGuangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat‐Sen UniversityGuangzhou ChinaCenter for Monsoon and Environment ResearchGuangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat‐Sen UniversityGuangzhou ChinaCenter for Monsoon and Environment ResearchGuangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat‐Sen UniversityGuangzhou ChinaCenter for Monsoon and Environment ResearchGuangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, School of Atmospheric Sciences, Sun Yat‐Sen UniversityGuangzhou ChinaKey Laboratory of Land Surface Process and Climate Change in Cold and Arid RegionsNorthwest Institute of Eco‐Environment and Resources, Chinese Academy of SciencesLanzhou ChinaZhuhai Joint Innovative Center for Climate‐Environment‐EcosystemKey Laboratory of Urban Climate and Ecodynamics, Future Earth Research Institute, Beijing Normal UniversityZhuhai ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical ScienceBeijing Normal UniversityBeijing ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical ScienceBeijing Normal UniversityBeijing ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical ScienceBeijing Normal UniversityBeijing ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical ScienceBeijing Normal UniversityBeijing ChinaAbstract Land surface albedo is a significant parameter for maintaining a balance in surface energy. It is also an important parameter of bare soil surface albedo for developing land surface process models that accurately reflect diurnal variation characteristics and the mechanism behind the solar spectral radiation albedo on bare soil surfaces and for understanding the relationships between climate factors and spectral radiation albedo. Using a data set of field observations, we conducted experiments to analyze the variation characteristics of land surface solar spectral radiation and the corresponding albedo over a typical Gobi bare soil underlying surface and to investigate the relationships between the land surface solar spectral radiation albedo, solar elevation angle, and soil moisture. Based on both solar elevation angle and soil moisture measurements simultaneously, we propose a new two‐factor parameterization scheme for spectral radiation albedo over bare soil underlying surfaces. The results of numerical simulation experiments show that the new parameterization scheme can more accurately depict the diurnal variation characteristics of bare soil surface albedo than the previous schemes. Solar elevation angle is one of the most important factors for parameterizing bare soil surface albedo and must be considered in the parameterization scheme, especially in arid and semiarid areas with low soil moisture content. This study reveals the characteristics and mechanism of the diurnal variation of bare soil surface solar spectral radiation albedo and is helpful in developing land surface process models, weather models, and climate models.https://doi.org/10.1002/2017MS001109bare soil surface albedosolar elevation anglesoil moistureparameterization scheme |
| spellingShingle | Zhiyuan Zheng Zhigang Wei Zhiping Wen Wenjie Dong Zhenchao Li Xiaohang Wen Xian Zhu Dong Ji Chen Chen Dongdong Yan Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil Surface Journal of Advances in Modeling Earth Systems bare soil surface albedo solar elevation angle soil moisture parameterization scheme |
| title | Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil Surface |
| title_full | Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil Surface |
| title_fullStr | Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil Surface |
| title_full_unstemmed | Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil Surface |
| title_short | Inclusion of Solar Elevation Angle in Land Surface Albedo Parameterization Over Bare Soil Surface |
| title_sort | inclusion of solar elevation angle in land surface albedo parameterization over bare soil surface |
| topic | bare soil surface albedo solar elevation angle soil moisture parameterization scheme |
| url | https://doi.org/10.1002/2017MS001109 |
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