| DOI: | 10.1002/grl.50385
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| 论文题名: | Revisiting the hysteresis effect in surface energy budgets |
| 作者: | Sun T.; Wang Z.-H.; Ni G.-H.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9100
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| EISSN: | 1944-8831
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| 出版年: | 2013
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| 卷: | 40, 期:9 | | 起始页码: | 1741
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| 结束页码: | 1747
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| 语种: | 英语
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| 英文关键词: | Hysteresis effect
; Soil water
; Surface Energy Budgets
; Wave phase
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| Scopus关键词: | Hysteresis effect
; Outgoing longwave radiation
; Short-wave radiation
; Soil water
; Surface energy budget
; Surface partitioning
; Two control parameters
; Wave phase
; Atmospheric temperature
; Budget control
; Heat flux
; Hysteresis loops
; Interfacial energy
; Measurements
; Soil moisture
; Hysteresis
; diurnal variation
; energy budget
; heat flux
; hysteresis
; land cover
; longwave radiation
; reconstruction
; shortwave radiation
; solar radiation
; surface energy
; surface temperature
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| 英文摘要: | The hysteresis effect in diurnal cycles of net radiation Rn and ground heat flux G0 has been observed in many studies, while the governing mechanism remains vague. In this study, we link the phenomenology of hysteresis loops to the wave phase difference between the diurnal evolutions of various terms in the surface energy balance. Rn and G0 are parameterized with the incoming solar radiation and the surface temperature as two control parameters of the surface energy partitioning. The theoretical analysis shows that the vertical water flux W and the scaled ratio As*/AT* (net shortwave radiation to outgoing longwave radiation) play crucial roles in shaping hysteresis loops of Rn and G 0. Comparisons to field measurements indicate that hysteresis loops for different land covers can be well captured by the theoretical model, which is also consistent with Camuffo-Bernadi formula. This study provides insight into the surface partitioning and temporal evolution of the energy budget at the land surface. Key Points We physically characterize the hysteresis effect between Rn and G0Wave phase evolution dictates the pattern of hysteresis loopsModel predictions are consistent with field measurements and empirical models ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879090345&doi=10.1002%2fgrl.50385&partnerID=40&md5=c964d6c11470dc795642cfa5c5c4a6f3
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6364
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| Appears in Collections: | 气候减缓与适应
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作者单位: | State Key Laboratory of Hydro-Science and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China
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| Recommended Citation: | |
Sun T.,Wang Z.-H.,Ni G.-H.. Revisiting the hysteresis effect in surface energy budgets[J]. Geophysical Research Letters,2013-01-01,40(9).
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