caa a22 4500 445300582 CHVBK 20180317142556.0 cr unu---uuuuu 170323e20100401xx s 000 0 eng 10.1007/s11430-009-0171-3 doi (NATIONALLICENCE)springer-10.1007/s11430-009-0171-3 A multi-subwaveform parametric retracker of the radar satellite altimetric waveform and recovery of gravity anomalies over coastal oceans [Elektronische Daten] [JinYun Guo, YongGang Gao, CheinWay Hwang, JiaLong Sun] The quality of satellite radar altimetric data is very important in studies of geodesy, geophysics, and oceanography. Over coastal oceans, altimeter waveforms are contaminated by the terrain and physical environments so that the accuracy of altimeter data is lower than that over open oceans. Here we develop a new multi-subwaveform parametric retracker (MSPR) to improve the quality of altimeter data for the recovery of gravity anomaly in coastal oceans. The least squares collocation method is used to recover the residual gravity anomaly over the coastal water from altimetric data. The waveform data records from Geosat/GM around Taiwan Island are practically retracked with MSPR. When compared with the Taiwan geoid height, the results retracked by MSPR are more accurate than those retracked by the well-known β-5-parmeter method and from the geophysical data records (GDRs). The gravity anomalies over Taiwan coastal waters are calculated from the retracked altimeter data with the least squares collocation. When we compared gravity anomalies computed using altimeter GDRs with the ship-borne gravity data over Taiwan coastal ocean, we found that the results from retracked data are more accurate than those from GDRs. Science China Press and Springer-Verlag Berlin Heidelberg, 2010 multi-subwaveform parametric retracker nationallicence waveform retracking for radar satellite altimetry nationallicence gravity anomaly nationallicence least squares collocation nationallicence Geosat/GM nationallicence Guo JinYun College of Geodesy and Geomatics, Shandong University of Science and Technology, 266510, Qingdao, China aut Gao YongGang College of Environment and Resources, Fuzhou University, 350108, Fuzhou, China aut Hwang CheinWay Department of Civil Engineering, Chiao Tung University, 300, Hsinchu, China aut Sun JiaLong College of Geodesy and Geomatics, Shandong University of Science and Technology, 266510, Qingdao, China aut Science China Earth Sciences SP Science China Press 53/4(2010-04-01), 610-616 1674-7313 53:4<610 2010 53 11430 https://doi.org/10.1007/s11430-009-0171-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-009-0171-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guo JinYun College of Geodesy and Geomatics, Shandong University of Science and Technology, 266510, Qingdao, China aut NATIONALLICENCE 700 1- Gao YongGang College of Environment and Resources, Fuzhou University, 350108, Fuzhou, China aut NATIONALLICENCE 700 1- Hwang CheinWay Department of Civil Engineering, Chiao Tung University, 300, Hsinchu, China aut NATIONALLICENCE 700 1- Sun JiaLong College of Geodesy and Geomatics, Shandong University of Science and Technology, 266510, Qingdao, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science China Press 53/4(2010-04-01), 610-616 1674-7313 53:4<610 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer