2015_DFO_floodextent_v1

Index

Metadata file identifier
  • 2015_DFO_floodextent_v1

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    Language
  • gmd:LanguageCode:

    eng

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    Contact
    Individual name
  • Albert Kettner

  • Organisation name
  • CSDMS, INSTAAR, Univ. of Colorado

  • Position name
  • Co-Director DFO

  • Contact information
    Phone
    Voice
  • +1-303-735-5486

  • Facsimile
  • +1-303-492-6388

  • Address
    Delivery point
  • Boulder, CO, 80309, USA

  • City
  • Colorado, USA

  • Postal code
  • P.O. Box 450

  • Country
  • USA

  • Electronic mail address
  • albert.kettner@gmail.com

  • Role
  • principalInvestigator

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    Metadata date stamp
  • 2015-01-01

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    Metadata standard name
  • ISO 19115

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    Metadata standard version
  • ISO19115:2003/Cor 1 2006

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    Reference System information
    Reference system identifier
    Authority
    Title
  • WGS 1984 Web Mercator Auxiliary Sphere, Projection: Mercator Auxiliary Sphere

  • Date
    Date
  • 2015-01-05

  • Date Type
  • publication

  • Code
  • 4326

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    Identification Information
    Citation
    Title
  • 2015_DFO_floodextent_v1

  • Date
    Date
  • 2015-01-05

  • Date Type
  • creation

  • Abstract
  • The 2015_DFO_floodextent_v1 dataset is reflecting the accumulation of the daily MODIS Surface Water detection product “3D3OT” of 2015 that is provided by the NASA’s MODIS Near Real-Time Global Flood Mapping Project, implementing the water detection algorithm of Dartmouth Flood Observatory (DFO). The applied daily 3D3OT product is a moving 3 day composite of 6 MODIS images (3 by Terra and 3 by Aqua satellite). Water will be only be marked as surface water when: 1) for this moving 3day composite, 3 or more images indicate water at a certain location; 2) for two adjacent 3day composite files (reflecting two adjacent days) only the intersecting surface water cells that consist of 3 or more adjacent grid cells (each 250m2 large). The 3D3OT product includes a first order approach by NASA to filter out terrain shadows, this is further enhanced by applying above mentioned filter. However, accumulating daily output over a year still tends to reflect incorrect surface water extents for mountainous regions. The 2015_DFO_floodextent_v1, version 1 dataset is a shapefile composite reflecting flood water extents for 2015 for South and Middle America.

  • Spatial representation type
  • vector

  • Language
  • gmd:LanguageCode:

    eng

  • Extent
    Geographic element
    West bound longitude
  • -3862984.404631 m

  • East bound longitude
  • -13814786.856099 m

  • South bound latitude
  • -7557344.666082 m

  • North bound latitude
  • 4865942.278922 m

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    Distribution information
    Distribution format
    Name
  • SHP - ArcView ShapeFile

  • Version
  • V1

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