Branco River Stage Gradient Determination and Amazon Hydrologic Studies Using GPS Water Level Measurements

K. C. Cheng S. Calmant 1 C. Y. Kuo H. Z. Tseng C. K. Shum Frédérique Seyler J. S. da Silva
1 GOHS
LEGOS - Laboratoire d'études en Géophysique et océanographie spatiales
Abstract : This study presents the result of a demonstration of Global Positioning System (GPS) hydrologic studies in a remote area. A GPS campaign was conducted using a GPS-equipped vessel and a GPS buoy to measure water level along Rio Branco, a tributary of the Amazon. The GPS water level data agree well with river gauge data and with ENVISAT radar altimeter measurements. The GPS-estimated river stage gradient of Rio Branco is 5.75 +/- 0.48 cm/km with 99% confidence, which is higher than previous estimates. This result also agrees well with ENVISAT altimetry results.
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Submitted on : Wednesday, May 14, 2014 - 2:47:13 PM
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K. C. Cheng, S. Calmant, C. Y. Kuo, H. Z. Tseng, C. K. Shum, et al.. Branco River Stage Gradient Determination and Amazon Hydrologic Studies Using GPS Water Level Measurements. Marine Geodesy, Taylor & Francis, 2009, 32 (3), pp.267-283. ⟨10.1080/01490410903094460⟩. ⟨hal-00990964⟩

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