Intertidal Topographic Maps and Morphological Changes in the German Wadden Sea between 1996-1999 and 2006-2009 from the Waterline Method and SAR Images

被引:26
作者
Li, Zhen [1 ]
Heygster, Georg [1 ]
Notholt, Justus [1 ]
机构
[1] Univ Bremen, Inst Environm Phys, D-28359 Bremen, Germany
关键词
Monitoring; morphological change; sediment volume; synthetic aperture radar (SAR); tidal flats; topographic map; Wadden Sea; water level; waterline; AIRBORNE; MORPHODYNAMICS; EXTRACTION; BAY;
D O I
10.1109/JSTARS.2014.2313062
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The Dutch, German, and Danish Wadden Sea is one of the largest tidal flats in the world which has been left in a nearly natural state. Several studies generated the topography of this valuable area, but presented only single maps, which covered partial regions of the Wadden Sea. The objectives of this paper are 1) to use the waterline method to analyze SAR images in order to generate annual topographic maps of the northern parts of the German Wadden Sea for the years 1996-1999 and 2006-2009 and 2) to quantitatively estimate and monitor the development of the tidal flats. The waterlines are detected by a wavelet-based edge detection algorithm, geocoded in Gauss-Krueger coordinates, assigned with water level information, and interpolated into topographic maps. Our results show the development of the tidal flats over the 8 years and illustrate three of the most changing regions: Tertiussand, Gelbsand, and Medemsand. Their area, shape, and sediment volume have changed significantly due to the tide, wave, wind, and river discharge influences. The waterline method is an efficient and economical way to monitor large tidal flat areas, which allows an estimation of long-term morphological development. One potential application is to assimilate the results into morphodynamic models in order to give finer morphological predictions.
引用
收藏
页码:3210 / 3224
页数:15
相关论文
共 28 条
  • [1] [Anonymous], 2009, OFF TOP MAPS SCHLESW
  • [2] Brzank A., 2009, ISPRS C B8, VXXXVII, P647
  • [3] Aspects of generating precise digital terrain models in the Wadden Sea from lidar-water classification and structure line extraction
    Brzank, Alexander
    Heipke, Christian
    Goepfert, Jens
    Soergel, Uwe
    [J]. ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, 2008, 63 (05) : 510 - 528
  • [4] Improvement of morphodynamic modeling of tidal channel migration by nudging
    Chu, Kai
    Winter, Christian
    Hebbeln, Dierk
    Schulz, Michael
    [J]. COASTAL ENGINEERING, 2013, 77 : 1 - 13
  • [5] Committee of National Pharmacopoeia, 2010, PHARM PEOPL REP CHIN, P95
  • [6] De Wit F., 1665, DUCATUS BREMAE FERDA
  • [7] Use of airborne hyperspectral data and laserscan data to study beach morphodynamics along the Belgian coast
    Deronde, Bart
    Houthuys, Rik
    Debruyn, Walter
    Fransaer, Dirk
    Van Lancker, Vera
    Henriet, Jean-Pierre
    [J]. JOURNAL OF COASTAL RESEARCH, 2006, 22 (05) : 1108 - 1117
  • [8] Flood M, 1997, PHOTOGRAMM ENG REM S, V63, P327
  • [9] GALLOWAY W.E., 1975, Deltas, Models for Exploration, P87
  • [10] Greidanus H., 1999, P IEEE INT GEOSC REM, P1889