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DOI	10.1016/j.jhydrol.2019.05.021
	Assessment of terrestrial water balance using remote sensing data in South America
	Moreira, Adriana Aparecida 1; Ruhoff, Anderson Luis 1; Roberti, Debora Regina 2; Souza, Vanessa de Arruda 2; da Rocha, Humberto Ribeiro 3; Dias de Paiva, Rodrigo Cauduro 1
通讯作者	Moreira, Adriana Aparecida
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	575 页码:131-147
英文摘要	This study investigated the potential of assessing the water balance in South America, at multiple scales, using satellite remote sensing precipitation and evapotranspiration datasets, terrestrial water storage changes from Gravity Recovery and Climate Experiment (GRACE), and discharge measurements. The remote sensing precipitation datasets included those of the Tropical Rainfall Measuring Mission (TRMM) and the Multi-Source Weighted-Ensemble Precipitation (MSWEP), whilst the ET constituents included the MODIS Global Evapotranspiration Project (MOD16) and the Global Land Evaporation Amsterdam Model (GLEAM). Uncertainties in precipitation and ET were evaluated using in situ measurements of 307 rain-gauge stations and 16 eddy covariance sites, respectively. The water balance closure and uncertainties were evaluated in 50 basins for the period 2003-2014, at different spatial scales and under different climatic conditions. Overall, MSWEP precipitation and GLEAM ET provided fewer uncertainties, whilst TRMM and MOD16 yielded greater bias and more errors. Better agreements between the TWSC from GRACE and the water balance were found in the large and medium-sized basins, with a root mean squared error (RMSE) of about 42%, whilst small basins and those located in regions with subtropical humid climates, where precipitation did not present strong seasonality, had a RMSE around 130%, indicating that climate conditions can influence the water balance closure. The TWSC from GRACE and the remote sensing water balance estimations were in agreement for more than half of the evaluated basins, mainly those located in tropical climate regions. Greater bias and more errors were found in the estimations of discharge in the semi-arid basins, with low runoff coefficients. Despite the water balance based on remote sensing estimations remaining a challenge due to the large uncertainties in precipitation, ET, and TWSC, our results showed their great potential for assessing terrestrial water-cycle dynamics and understanding their spatial and temporal variability at multiple scales.
英文关键词	Evapotranspiration Precipitation Terrestrial water storage Validation Water balance
类型	Article
语种	英语
国家	Brazil
收录类别	SCI-E
WOS记录号	WOS:000488143000011
WOS关键词	LA PLATA BASIN ; WACMOS-ET PROJECT ; AMAZON BASIN ; SCALE EVAPOTRANSPIRATION ; RIVER-BASINS ; EVAPORATION ; ENERGY ; CARBON ; SOIL ; SATELLITE
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217169
作者单位	1.Univ Fed Rio Grande do Sul, Inst Hydraul Res, Porto Alegre, RS, Brazil; 2.Univ Fed Santa Maria, Dept Phys, Santa Maria, RS, Brazil; 3.Univ Sao Paulo, Dept Atmospher Sci, Sao Paulo, Brazil
推荐引用方式 GB/T 7714	Moreira, Adriana Aparecida,Ruhoff, Anderson Luis,Roberti, Debora Regina,et al. Assessment of terrestrial water balance using remote sensing data in South America[J],2019,575:131-147.
APA	Moreira, Adriana Aparecida,Ruhoff, Anderson Luis,Roberti, Debora Regina,Souza, Vanessa de Arruda,da Rocha, Humberto Ribeiro,&Dias de Paiva, Rodrigo Cauduro.(2019).Assessment of terrestrial water balance using remote sensing data in South America.JOURNAL OF HYDROLOGY,575,131-147.
MLA	Moreira, Adriana Aparecida,et al."Assessment of terrestrial water balance using remote sensing data in South America".JOURNAL OF HYDROLOGY 575(2019):131-147.