A Framework for Estimating Global River Discharge From the Surface Water and Ocean Topography Satellite Mission
A Framework for Estimating Global River Discharge From the Surface Water and Ocean Topography Satellite Mission
复制标题
估算全球河流地表水流量和海洋地形卫星任务的框架
DOI:
10.1029/2021wr031614
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发表时间:
2023
影响因子:
5.4
通讯作者:
Durand M
中科院分区:
文献类型:
--
作者:
Durand M
The Surface Water and Ocean Topography (SWOT) mission will vastly expand measurements of global rivers, providing critical new data sets for both gaged and ungaged basins. SWOT discharge products (available approximately 1 year after launch) will provide discharge for all river that reaches wider than 100 m. In this paper, we describe how SWOT discharge produced and archived by the US and French space agencies will be computed from measurements of river water surface elevation, width, and slope and ancillary data, along with expected discharge accuracy. We present for the first time a complete estimate of the SWOT discharge uncertainty budget, with separate terms for random (standard error) and systematic (bias) uncertainty components in river discharge time series. We expect that discharge uncertainty will be less than 30% for two‐thirds of global reaches and will be dominated by bias. Separate river discharge estimates will combine both SWOT and in situ data; these “gage‐constrained” discharge estimates can be expected to have lower systematic uncertainty. Temporal variations in river discharge time series will be dominated by random error and are expected to be estimated within 15% for nearly all reaches, allowing accurate inference of event flow dynamics globally, including in ungaged basins. We believe this level of accuracy lays the groundwork for SWOT to enable breakthroughs in global hydrologic science.
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影响因子:
2.4
作者:
T. Adams;S. Chen;R. Dymond
通讯作者:
R. Dymond
DOI:
--
发表时间:
2020
期刊:
Earth's Future
影响因子:
--
作者:
Aaron Whittemore;M. Ross;W. Dolan;T. Langhorst;Xiao Yang;Sayali K. Pawar;Michiel W. P. Jorissen;Eric Lawton;S. Januchowski‐Hartley;T. Pavelsky
通讯作者:
T. Pavelsky
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
R. Frasson
通讯作者:
R. Frasson
影响因子:
5.4
作者:
R. Frasson;M. Durand;K. Larnier;C. Gleason;K. Andreadis;M. Hagemann;R. Dudley;D. Bjerklie;H. Oubanas;P. Garambois;P. Malaterre;P. Lin;T. Pavelsky;J. Monnier;C. Brinkerhoff;C. David
通讯作者:
C. David
影响因子:
5.4
作者:
Ishitsuka, Yuta;Gleason, Colin J.;Pavelsky, Tamlin M.
通讯作者:
Pavelsky, Tamlin M.