Application of retracked satellite altimetry for inland hydrologic studies

ISI Document Delivery No.: 634XC Times Cited: 7 Cited Reference Count: 22 Cited References: Alsdorf D, 2001, GEOPHYS RES LETT, V28, P2671, DOI 10.1029/2001GL012962 BAMBER JL, 1994, INT J REMOTE SENS, V15, P925 BENVENISTE J, 2002, POTNESRRA0050 EUR SP Berry PAM, 2005, GEOPHYS RES LETT, V32, DOI 10.1029/2005GL022814 Birkett CM, 2002, J GEOPHYS RES-ATMOS, V107, DOI 10.1029/2001JD000609 BIRKETT CM, 1995, J GEOPHYS RES, V100, P179 Birkett CM, 2000, REMOTE SENS ENVIRON, V72, P218, DOI 10.1016/S0034-4257(99)00105-4 Birkett CM, 1998, WATER RESOUR RES, V34, P1223, DOI 10.1029/98WR00124 Birkett C.M., 1995, J GEOPHYS RES, V100 BIRKETT CM, 1995, JGR OCEANS, V100, P25 BROWN GS, 1977, IEEE T ANTENN PROPAG, V25, P67, DOI 10.1109/TAP.1977.1141536 Calmant S, 2008, SURV GEOPHYS, V29, P247, DOI 10.1007/s10712-008-9051-1 Coe M. T., 2004, Water Resources Research, V40, pW10205, DOI 10.1029/2003WR002543 Davis CH, 1997, IEEE T GEOSCI REMOTE, V35, P974, DOI 10.1109/36.602540 Enjolras VM, 2009, IEEE T GEOSCI REMOTE, V47, P1869, DOI 10.1109/TGRS.2008.2006365 Frappart F, 2006, REMOTE SENS ENVIRON, V100, P252, DOI 10.1016/j.rse.2005.10.027 Hess LL, 2003, REMOTE SENS ENVIRON, V87, P404, DOI 10.1016/j.rse.2003.04.001 Kruizinga G., 1997, THESIS U TEXAS AUSTI Lee H, 2008, J GEODYN, V46, P182, DOI 10.1016/j.jog.2008.05.001 Lee H, 2009, MAR GEOD, V32, P284, DOI 10.1080/01490410903094767 Papa F, 2003, REMOTE SENS ENVIRON, V87, P136, DOI 10.1016/S0034-4257(03)00136-6 YI Y, 2000, 495 OH STAT U Zhang, Manman Lee, Hyongki Shum, C. K. Alsdorf, Doug Schwartz, Frank Tseng, Kuo-Hsin Yi, Yuchan Kuo, Chung-Yen Tseng, Hong-Zeng Braun, Alexander Calmant, Stephane Filizola, Naziano Seyler, Frederique Annual Fall American-Geophysical-Union Meeting DEC 13-14, 2008 San Francisco, CA Amer Geophys Union, Mineralog Soc Amer, Dept Energy SEYLER, Frederique/D-5518-2011 NSF; NGA; Ohio State University Climate, Water and Carbon Program This research is funded by grants from NSF's Hydrology program, NGA's NURI program, and the Ohio State University Climate, Water and Carbon Program. We acknowledge NASA and CNES for providing the TOPEX/POSEIDON (GDR and Satellite-based observations of hydrological processes 3927 Downloaded By: [Thomson Scientific] At: 22:11 25 August 2010 SDR) data products; LEGOS, USDA and NASA/GSFC for providing high-level radar altimetry data products; ANA Brazil and Environment Canada for providing the river stage gauge data used for the study. We thank Mike Durand, the guest editor, and an anonymous reviewer for the constructive comments which improved the manuscript. 7 TAYLOR & FRANCIS LTD ABINGDON INT J REMOTE SENSWe explored the application of satellite radar altimetry for the monitoring of small inland bodies of water and hydrologic studies using a water-detection algorithm, optimally retracked TOPEX/POSEIDON data at 10-Hz sampling, and investigated the use of radar backscatter to improve land cover classification. The procedure was demonstrated over Manitoba and south-western (SW) Ontario, and the Amazon River Basin study regions. Compared with an L-band synthetic aperture radar data generated water-land cover mask, the water-detection algorithm detected more water points over the Amazon basin. High correlation of 0.98 between the retracked 10-Hz altimetry and the gauge measurements in Manitoba confirmed that the retracked TOPEX data are more accurate than the non-retracked data, and with higher along-track spatial resolution by virtue of its higher sampling at 10 Hz