DOI: 10.1002/grl.50173
论文题名: A new method for rainfall estimation through soil moisture observations
作者: Brocca L. ; Moramarco T. ; Melone F. ; Wagner W.
刊名: Geophysical Research Letters
ISSN: 0094-9273
EISSN: 1944-9004
出版年: 2013
卷: 40, 期: 5 起始页码: 853
结束页码: 858
语种: 英语
英文关键词: in situ measurements
; rainfall
; remote sensing
; soil moisture
Scopus关键词: Balance equations
; Catchment scale
; Climatic conditions
; Correlation coefficient
; In-situ measurement
; Land surface models
; Rainfall estimations
; Time evolutions
; Catchments
; Rain gages
; Remote sensing
; Soil moisture
; Surface measurement
; Rain
; analytical framework
; climate conditions
; estimation method
; land surface
; precipitation intensity
; rainfall
; reliability analysis
; soil moisture
; soil water
; time series
; water budget
; France
; Italy
; Spain
英文摘要: Rainfall and soil moisture, SM, are two important quantities for modeling the interaction between the land surface and the atmosphere. Usually, rainfall observations are used as input data for modeling the time evolution of SM within hydrological and land surface models. In this study, by inverting the soil-water balance equation, a simple analytical relationship for estimating rainfall accumulations from the knowledge of SM time series is obtained. In situ and satellite SM observations from three different sites in Italy, Spain, and France are used to test the reliability of the proposed approach in contrasting climatic conditions. The results show that the model is able to satisfactorily reproduce daily rainfall data when in situ SM observations are employed (correlation coefficient, R, nearly equal to 0.9). Furthermore, also by using satellite data reasonable results are obtained in reproducing 4 day rainfall accumulations with R-values close to 0.8. Based on these preliminary results, the proposed approach can be adopted conveniently to improve rainfall estimation at a catchment scale and as a supplementary source of data to estimate rainfall at a global scale. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876814604&doi=10.1002%2fgrl.50173&partnerID=40&md5=66c81030dd3c2bb3758da76c2ac3712e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6537
Appears in Collections: 气候减缓与适应
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作者单位: Research Institute for Geo-Hydrological Protection, National Research Council, Perugia, Italy
Recommended Citation:
Brocca L.,Moramarco T.,Melone F.,et al. A new method for rainfall estimation through soil moisture observations[J]. Geophysical Research Letters,2013-01-01,40(5).