Observing the Middle Elbe Biosphere in Germany by Means of TerraSAR-X Images

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The Lower Saxonian Elbe Valley Biosphere Reserve is part of the UNESCO Biosphere Reserve “Elbe River Landscape”, and used mainly for agriculture. One of tasks of the Biosphere Reserve Administration is to develop sustainable forms of land use which requires comprehensive updated land cover maps. Land use maps are hard to produce because of surveying costs and time. Nevertheless, these large areas need to be monitored. Ter-raSAR-X images are used to establish agricultural land use maps. In this study, two areas are selected within the Elbe Biosphere Reserve situated around the oxbows Wehninger Werder and Walmsburger Werder. Multi tem-poral classification methods were used to identify the different crops using maximum likelihood classifier for the years 2010 and 2011. The crop classifications were used to evaluate the effect of the number of images, the neces-sity of polarizations, and the consequences of some missing images within the crop calendar. These classificationswere analyzed to estimate producer accuracy and Kappa index for each crop besides the overall accuracy for each agricultural land use map. The study shows that using dual polarization imagery enhances producer accu-racies for many crops over the single polarization imagery, and demonstrates the importance of using frequent images during the cultivation period.
Original languageEnglish
JournalInternational Journal of Geosciences
Volume5
Issue number2
Pages (from-to)196-205
Number of pages10
ISSN2156-8359
DOIs
Publication statusPublished - 01.01.2014

    Research areas

  • Sustainability Science - agricultural Land use, Elbe river, Multi temporal classification, TerraSAR-X, UNESCO Biosphere reserves

DOI

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