Journal article
Hydrologic Evaluation of the Global Precipitation Measurement Mission over the U.S.: Error Budget Analysis
Journal of hydrology (Amsterdam), Vol.626, 130212
11/2023
DOI: 10.1016/j.jhydrol.2023.130212
Abstract
This study investigates the hydrologic utility of satellite precipitation estimates from the Global Precipitation Measurement mission by comparing flood signals produced across the Continental United States by a ten-year span of in-situ, ground-based radar and satellite-based precipitation data. The flood characteristics generated with radar and satellite precipitation through a distributed hydrologic model are contrasted against reference stream gauge data as a method of integrated validation to assess and quantify error budgets between precipitation products by highlighting precipitation products’ accuracy, hydrologic scaling effects, and the impact of the hydrologic model. It is found that systematic and random errors associated with flood characteristics behave similarly to trends previously seen in precipitation rate errors between precipitation products, establishing a clear link through propagation of errors into the water cycle. Additionally, behaviors associated with both water balance and routing schemes within the hydrologic model were shown to affect outputs. Errors generated by water balance tend to cause overestimation of peak discharge values, while errors associated with routing tend to cause underestimation of flood durations and push flood timings earlier than the stream gauge reference.
Details
- Title: Subtitle
- Hydrologic Evaluation of the Global Precipitation Measurement Mission over the U.S.: Error Budget Analysis
- Creators
- Devon Woods - University of OklahomaPierre-Emmanuel KirstetterHumberto Vergara - Cooperative Institute for Mesoscale Meteorological StudiesJorge A. Duarte - Cooperative Institute for Mesoscale Meteorological StudiesJeffrey Basara - University of Oklahoma
- Resource Type
- Journal article
- Publication Details
- Journal of hydrology (Amsterdam), Vol.626, 130212
- DOI
- 10.1016/j.jhydrol.2023.130212
- ISSN
- 0022-1694
- eISSN
- 1879-2707
- Grant note
- DOI: 10.13039/100007926, name: University of Oklahoma; DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: 80NSSC19K0681, 80NSSC21K2045; DOI: 10.13039/100000192, name: NOAA, award: NA20OAR4590354
- Language
- English
- Electronic publication date
- 09/2023
- Date published
- 11/2023
- Academic Unit
- IIHR--Hydroscience and Engineering; Civil and Environmental Engineering
- Record Identifier
- 9984469360002771
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