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      Spatial analysis of marine categorical information using indicator kriging applied to georeferenced video mosaics of the deep-sea Håkon Mosby Mud Volcano.

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      General Information:

      Citation:
      Jerosch, K. , Pesch, R. and Schlüter, M. (2006): Spatial analysis of marine categorical information using indicator kriging applied to georeferenced video mosaics of the deep-sea Håkon Mosby Mud Volcano. , Ecological Informatics, 1 (4), pp. 391-406 . doi: 10.1016/j.ecoinf.2006.05.003
      Cite this page as:
      hdl:10013/epic.25277
      DOI:
      10.1016/j.ecoinf.2006.05.003
      Official URL:
      10.1016/j.ecoinf.2006.05.003
      Contact Email:
      Kerstin.Jerosch@awi.de
      Related Data:

      Platform/Expeditions:
      • ARK-XIX/3B
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      Cite this document as:
      hdl:10013/epic.25277.d001
      Abstract:

      The exact area calculation of irregularly distributed data is in the focus of all territorial geochemical balancing methods or definition of protection zones. Especially in the deep sea environment the interpolation of measurements into surfaces represents an important gain of information, because of cost- and time-intensive data acquisition.The geostatistical interpolation method indicator kriging therefore is applied for an accurate mapping of the spatial distribution of benthic communities following a categorical classification scheme at the deep-sea submarine Håkon Mosby Mud Volcano. Georeferenced video mosaics were obtained during several dives by the Remotely Operated Vehicle Victor6000 in a water depth of 1260 m. Mud volcanoes are considered as significant source locations for methane indicated by unique chemoautotrophic communities as Beggiatoa mats and pogonophoran tube worms. For the detection and quantification of their spatial distribution 2840 georeferencedvideo mosaics were analysed by visual inspection. Polygons, digitised on the georeferenced images within a GIS, build the data basis for geostatistically interpolated mono-parametric surface maps. Indicator kriging is applied to the centroids of the polygons calculating surfacemaps.The quality assessment of the surface maps is conducted by leave-one-out cross-validation evaluating the fit of the indicator kriging variograms by using statistical mean values. Furthermore, the estimate was evaluated by a validation dataset of the visual inspection of 530 video mosaics not included within the interpolation, thus, proving the interpolated surfaces independently. With regard to both validating mechanisms, we attained satisfying results and we provided each category applied for the identification of biogeochemical habitats with apercentage probability value of occurrence.

      Further Details:

      Item Type:
      Article
      Authors:
      Jerosch, Kerstin ; Pesch, R. ; Schlüter, Michael
      Divisions:
      AWI Organizations > Geosciences > Marine Geochemistry
      AWI Organizations > Biosciences > Ecological Chemistry
      Programs:
      Helmholtz Research Programs > MARCOPOLI (2004-2008) > POL-MARCOPOLI
      Helmholtz Research Programs > MARCOPOLI (2004-2008) > POL7-From permafrost to deep sea in the Arctic
      Eprint ID:
      15083
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      und Meeresforschung
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