نتایج جستجو برای: topex poseidon

تعداد نتایج: 644  

Journal: :Eos, Transactions American Geophysical Union 1996

Journal: :Environmental monitoring and assessment 2006
Jiqun Zhang Kaiqin Xu Yonghui Yang Lianhui Qi Seiji Hayashi Masataka Watanabe

Although satellite radar altimetry was developed and optimized for open oceans, it has been used to monitor variations in the level of inland water-bodies such as lakes and rivers. Here, for the first time, we have further used the altimetry-derived variation of water level for estimating the fluctuation of water storage as an addition to the present in situ water storage estimation systems to ...

2000
P Moore

Applications involving multi-satellite altimetry (such as from ERS, TOPEX/Poseidon and, in the near future GFO) require that any differences between the altimetric databases are either negligible, resolvable by simple spatial approximations or eliminated by enhancement through dual satellite crossovers. Although orbit error for satellites such as ERS-2 has been considerably reduced over the yea...

2004
Yessy Arvelyna Masaki Oshima

This research deals with internal waves observation around southwest coast of Japan by using ERS-1/2 SAR and Topex/Poseidon (T/P) images during 1993-2002 period. Proposed method consisting of Symlet wavelet analysis and Canny edge detector can detect internal wave in SAR image. Internal waves were detected with higher wavelet coefficient than sea surface on horizontal and vertical detail coeffi...

2008
Hyongki Lee C. K. Shum Chung-Yen Kuo Yuchan Yi Alexander Braun

This study demonstrates the use of satellite radar altimetry to detect solid Earth deformation signals such as Glacial Isostatic Adjustment (GIA). Our study region covers moderately flat land surfaces seasonally covered by snow/ice/vegetation. The maximum solid Earth uplift of ~10 mm yr-1 is primarily due to the incomplete glacial isostatic rebound that occurs around Hudson Bay, North America. ...

2009
HYONGKI LEE C. K. SHUM YUCHAN YI MOTOMU IBARAKI JIN-WOO KIM ALEXANDER BRAUN CHUNG-YEN KUO ZHONG LU

Previous studies using satellite radar altimetry to observe inland river and wetland water level changes usually spatially average high-rate (10-Hz for TOPEX, 18-Hz for Envisat) measurements. Here we develop a technique to apply retracking of TOPEX waveforms by optimizing the estimated retracked gate positions using the Offset Center of Gravity retracker. This study, for the first time, utilize...

رضا اردکانیان سید حامد آلمحمد

افزایش تراز آب دریاها در دهه گذشته روند رو به رشدی داشته است. اطلاعات تراز آب دریاهاامروزه به کمک اندازهگیریهای ماهوارهای دقت بسیار بالایی دارد. اندازهگیریهای انجام شده در1میلیمتر در سال را در 50 سال گذشته برای تراز آب دریاها /8±0/ ایستگاههای ساحلی روند افزایشی 3و TOPEX/Poseidon نشان میدهند در حالی که اندازهگیریهای انجام شده توسط ماهوارههای3 میلیمتر در سال را برای سالهای 1993 به بعد گزارش میدهن...

Journal: :Proceedings of the International Association of Hydrological Sciences 2015

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