Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Extending global river gauge records using satellite observations
Long-term, continuous, and real-time streamflow records are essential for understanding and managing freshwater resources. However, we find that 37% of publicly available global gauge records ( N = 45 837) are discontinuous and 77% of gauge records do not contain real-time data. Historical periods of social upheaval are associated with declines in gauge data availability. Using river width observations from Landsat and Sentinel-2 satellites, we fill in missing records at 2168 gauge locations worldwide with more than 275 000 daily discharge estimates. This task is accomplished with a river width-based rating curve technique that optimizes measurement location and rating function (median relative bias = 1.4%, median Kling-Gupta efficiency = 0.46). The rating curves presented here can be used to generate near real-time discharge measurements as new satellite images are acquired, improving our capabilities for monitoring and managing river resources.
Extending global river gauge records using satellite observations
Long-term, continuous, and real-time streamflow records are essential for understanding and managing freshwater resources. However, we find that 37% of publicly available global gauge records ( N = 45 837) are discontinuous and 77% of gauge records do not contain real-time data. Historical periods of social upheaval are associated with declines in gauge data availability. Using river width observations from Landsat and Sentinel-2 satellites, we fill in missing records at 2168 gauge locations worldwide with more than 275 000 daily discharge estimates. This task is accomplished with a river width-based rating curve technique that optimizes measurement location and rating function (median relative bias = 1.4%, median Kling-Gupta efficiency = 0.46). The rating curves presented here can be used to generate near real-time discharge measurements as new satellite images are acquired, improving our capabilities for monitoring and managing river resources.
Extending global river gauge records using satellite observations
Ryan M Riggs (Autor:in) / George H Allen (Autor:in) / Jida Wang (Autor:in) / Tamlin M Pavelsky (Autor:in) / Colin J Gleason (Autor:in) / Cédric H David (Autor:in) / Michael Durand (Autor:in)
2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Extracting Long Waves from Tide-Gauge Records
| Online Contents | 2008
Extracting Long Waves from Tide-Gauge Records
| British Library Online Contents | 2008
Global Satellite Observations of Wind and Wave Conditions
| British Library Conference Proceedings | 1997
Global ocean wave statistics obtained from satellite observations
| Online Contents | 1994
Global Satellite Observations of Wind and Wave Conditions
| British Library Conference Proceedings | 1997