干旱区生态环境知识资源中心(Arid): Implications of model selection: a comparison of publicly available, conterminous US-extent hydrologic component estimates

Arid

DOI	10.5194/hess-25-1529-2021
	Implications of model selection: a comparison of publicly available, conterminous US-extent hydrologic component estimates
	Saxe, Samuel; Farmer, William; Driscoll, Jessica; Hogue, Terri S.
通讯作者	Saxe, S (corresponding author), US Geol Survey, Anal & Predict Branch, Lakewood, CO 80225 USA. ; Saxe, S (corresponding author), Colorado Sch Mines, Hydrol Sci & Engn, Golden, CO 80401 USA.
来源期刊	HYDROLOGY AND EARTH SYSTEM SCIENCES
ISSN	1027-5606
EISSN	1607-7938
出版年	2021
卷号	25 期号:3 页码:1529-1568
英文摘要	Spatiotemporally continuous estimates of the hydrologic cycle are often generated through hydrologic modeling, reanalysis, or remote sensing (RS) methods and are commonly applied as a supplement to, or a substitute for, in situ measurements when observational data are sparse or unavailable. This study compares estimates of precipitation (P), actual evapotranspiration (ET), runoff (R), snow water equivalent (SWE), and soil moisture (SM) from 87 unique data sets generated by 47 hydrologic models, reanalysis data sets, and remote sensing products across the conterminous United States (CONUS). Uncertainty between hydrologic component estimates was shown to be high in the western CONUS, with median uncertainty (measured as the coefficient of variation) ranging from 11% to 21% for P, 14% to 26% for ET, 28% to 82% for R, 76% to 84% for SWE, and 36% to 96% for SM. Uncertainty between estimates was lower in the eastern CONUS, with medians ranging from 5% to 14% for P, 13% to 22% for ET, 28% to 82% for R, 53% to 63% for SWE, and 42% to 83% for SM. Interannual trends in estimates from 1982 to 2010 show common disagreement in R, SWE, and SM. Correlating fluxes and stores against remote-sensing-derived products show poor overall correlation in the western CONUS for ET and SM estimates. Study results show that disagreement between estimates can be substantial, sometimes exceeding the magnitude of the measurements themselves. The authors conclude that multi-model ensembles are not only useful but are in fact a necessity for accurately representing uncertainty in research results. Spatial biases of model disagreement values in the western United States show that targeted research efforts in arid and semiarid water-limited regions are warranted, with the greatest emphasis on storage and runoff components, to better describe complexities of the terrestrial hydrologic system and reconcile model disagreement.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000635420400002
WOS关键词	SOIL-MOISTURE ; GROUNDWATER DEPLETION ; GLOBAL PRECIPITATION ; WATER-BUDGET ; EVAPOTRANSPIRATION ; CLIMATE ; CIRCULATION ; METEOROLOGY ; REANALYSIS ; DATASET
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368027
作者单位	[Saxe, Samuel; Farmer, William; Driscoll, Jessica] US Geol Survey, Anal & Predict Branch, Lakewood, CO 80225 USA; [Saxe, Samuel; Hogue, Terri S.] Colorado Sch Mines, Hydrol Sci & Engn, Golden, CO 80401 USA; [Hogue, Terri S.] Colorado Sch Mines, Dept Civil & Environm Engn, Golden, CO 80401 USA
推荐引用方式 GB/T 7714	Saxe, Samuel,Farmer, William,Driscoll, Jessica,et al. Implications of model selection: a comparison of publicly available, conterminous US-extent hydrologic component estimates[J]. United States Geological Survey,2021,25(3):1529-1568.
APA	Saxe, Samuel,Farmer, William,Driscoll, Jessica,&Hogue, Terri S..(2021).Implications of model selection: a comparison of publicly available, conterminous US-extent hydrologic component estimates.HYDROLOGY AND EARTH SYSTEM SCIENCES,25(3),1529-1568.
MLA	Saxe, Samuel,et al."Implications of model selection: a comparison of publicly available, conterminous US-extent hydrologic component estimates".HYDROLOGY AND EARTH SYSTEM SCIENCES 25.3(2021):1529-1568.