Barbados

Index

Metadata file identifier
  • c4255621-b463-11e3-990b-b4b52fc6f2d2

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    Language
  • UNKNOWN

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    Contact
    Individual name
  • Diego Pedreros

  • Organisation name
  • USGS- Center for EROS

  • Position name
  • Scientist

  • Contact information
    Phone
    Voice
  • 1-805-8938322

  • Address
    Electronic mail address
  • pedreros@usgs.gov

  • Role
  • publisher

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    Metadata date stamp
  • 2013-08-22

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    Metadata standard name
  • ISO 19115 Geographic Information - Metadata

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    Metadata standard version
  • http://metadata.dgiwg.org/ISO19115/ISO19115_v0_7.htm

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    Spatial representation information
    Number of dimensions
  • 0

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    Identification Information
    Citation
    Title
  • Barbados

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Edition
  • 1

  • Cited responsible party
    Organisation name
  • Diego Pedreros. Citation: Helmer, E.H.; Kennaway, T.A.; Pedreros, D.H.; Clark, M.L.; Marcano-Vega, H.; Tieszen, L.L., Ruzycki, T.R.; Schill, S.R.; Carrington, C.M.S. 2008. Land cover and forest formation distributions for St. Kitts, Nevis, St. Eustatius, Grenada and Barbados from decision tree classification of cloud-cleared satellite imagery. Caribbean Journal of Science. 44(2): 175-198.

  • Contact information
    Online resource
    Linkage
  • http://fsgeodata.fs.fed.us/rastergateway/caribbean/

  • Role
  • originator

  • Series
    Name
  • Caribbean Land Cover Map Series

  • Abstract
  • Forest formation and land cover maps for several Caribbean islands were developed from satellite imagery as part of a multi-organizational project. For the map of Barbados (Helmer et al., 2008), we used decision tree software as the original approach to classify Landsat ETM+ images. Unfortunately the high cloud cover in the available Landsat images led to a low-quality classified map in many areas. Ikonos images for the years 2001 and 2002 where obtained and used as the basis to classify most of the island by "heads-up" digitizing. The forest classification scheme relates closely to that of Areces-Malea et al. (Areces-Mallea et al., 1999), with modifications similar to those in Helmer et al. (Helmer et al., 2002). This is version 2 of the Barbados map. In this version, the high resolution imagery viewable on Google Earth was used to interpret land cover in areas that were cloud-obscured in the original map and imagery. In addition, a projection problem was corrected. Citation: Helmer, E.H.; Kennaway, T.A.; Pedreros, D.H.; Clark, M.L.; Marcano-Vega, H.; Tieszen, L.L., Ruzycki, T.R.; Schill, S.R.; Carrington, C.M.S. 2008. Land cover and forest formation distributions for St. Kitts, Nevis, St. Eustatius, Grenada and Barbados from decision tree classification of cloud-cleared satellite imagery. Caribbean Journal of Science. 44(2):175-198. Data are posted at the FSGeodata Clearinghouse (http://svinetfc4.fs.fed.us/clearinghouse/index.html).

  • Purpose
  • Satellite image-based mapping of tropical forests is often vital to conservation planning. Standard methods for automated image classification, however, limit classification detail in complex tropical landscapes. The purpose of this map is to provide an inventory of the existing vegetation land cover of the country to help monitoring possible changes.

  • Credit
  • Citation: Helmer, E.H.; Kennaway, T.A.; Pedreros, D.H.; Clark, M.L.; Marcano-Vega, H.; Tieszen, L.L., Ruzycki, T.R.; Schill, S.R.; Carrington, C.M.S. 2008. Land cover and forest formation distributions for St. Kitts, Nevis, St. Eustatius, Grenada and Barbados from decision tree classification of cloud-cleared satellite imagery. Caribbean Journal of Science. 44(2):175-198.

  • Point of contact
    Individual name
  • Diego Pedreros

  • Organisation name
  • USGS, Center for Eros

  • Position name
  • Geospatial Scientist

  • Contact information
    Phone
    Voice
  • 1-805-8938322

  • Address
    Electronic mail address
  • pedreros@usgs.gov

  • Role
  • Point of contact

  • Resource maintenance
    Maintenance and update frequency
  • notPlanned

  • Graphic overview
    File name
  • IITF_CJS44_barbados_landcov_browse.gif

  • File description
  • Barbados land cover and forest formations

  • File type
  • GIF - Graphic Interchange Format

  • Descriptive keywords
    Keyword
  • land cover

  • Type
  • theme

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Descriptive keywords
    Keyword
  • land use

  • Type
  • theme

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Descriptive keywords
    Keyword
  • forest formation

  • Type
  • theme

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Descriptive keywords
    Keyword
  • forest type

  • Type
  • theme

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Descriptive keywords
    Keyword
  • Caribbean

  • Type
  • place

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Descriptive keywords
    Keyword
  • Barbados

  • Type
  • place

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Descriptive keywords
    Keyword
  • 2001

  • Type
  • temporal

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Descriptive keywords
    Keyword
  • 2002

  • Type
  • temporal

  • Thesaurus name
    Title
  • None

  • Date
    Date
  • 0001-01-01

  • Date Type
  • publication

  • Spatial representation type
  • grid

  • Language
  • eng

  • Environment description
  • Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.0.3035

  • Extent
    Geographic element
    West bound longitude
  • -59.666003

  • East bound longitude
  • -59.400282

  • South bound latitude
  • 13.031261

  • North bound latitude
  • 13.351630

  • Supplemental information
  • The map for Barbados was developed by Diego Pedreros with collaboration from Eileen Helmer, Mathew Clark, Tom Albright, John Walkey, Carrintong, S. and Larry Tieszen, as part of a joint project between the USFS - International Institute of Tropical Forestry, USGS - Center for EROS, The Nature Conservancy, NASA, CSU - CEMML, USAID - Caribbean Program Office. With the collaboration of the Ministry of Energy and the Environment of Barbados. Landsat imagery provided by NASA - GOFC, USGS - Center for EROS, and IITF. Marie Held and Thomas Ruzycki of the Center for Environmental Management of Military Lands (CML) of Colorado State University made the corrections and additions that resulted in version 2 of the Barbados map. 0 Ocean 1 High-Medium Density Urban or Built-up Land 2 Low Density Built-up Land (Rural or Residential) 3 Sugar cane 4 Minor crops 5 Mixed and Woody agriculture 6 Pasture, Hay or Inactive Agriculture (e.g. abandoned sugar cane) 7 Pasture, Hay or other Grassy Areas (e.g. soccer fields) 8 Golf course 9 Drought Deciduous Woodland 10 Deciduous, Evergreen Coastal and Mixed Forest or Shrubland and Drought Deciduous Forest/Shrub 11 Drought Deciduous Forest/Shrub 12 Semi-Deciduous and Drought Deciduous Forest on Limestone (includes Semi-Evergreen Forest) 13 Semi-Deciduous and Drought Deciduous Forest (includes Semi-Evergreen Forest) 14 Seasonal Evergreen Forest 15 Emergent Wetland 16 Mangrove 17 Quarries 18 Coastal Sand, Rock, Cliffs or Bare Ground 19 Bare Soil (including bulldozed land) 20 Water - Permanent 21 Clouds in imagery

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    Content information
    Included with dataset
  • false

  • Feature types
  • VAT_barbados_WM

  • Feature catalogue citation
    Title
  • unknown

  • Date
    Date
  • 0001-01-01

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    Data quality information
    Lineage
    Process step
    Description
  • The only two Landsat scenes available for Barbados, at the time, were utilized to run the C5 classification process. Due to the large cloud cover the result was a low-quality classified map, mainly for the Northern and Eastern part of the island. Ikonos images for the year 2001-2 were acquired and utilized to fill-in the gaps in the decision tree product. The Ikonos images were registered to the existing Landsat images with difficulty due to the cloud cover, in some areas. There where areas, in the decision tree product, that needed to be completely replaced with classification from Ikonos. For those areas, the Ikonos image was resampled to 30 m to match the resolution of Landsat, the individual classes were identified by a process of elimination, and the final edits were done by "heads-up" digitizing over the Ikonos original image. Individual classes such as forest, grassland, urban, etc. were identified by running an unsupervised classification with 100 classes, then the first 5 to 10 classes were selected, depending on how much they would represent a single main class. The process was run many times until a main class was obtained. These pixels representing a single class were taken away from the Ikonos image. The process was run for each main class. After having all the individual classes for an image, classes were merged with the C5 product. (see final report)

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    Application schema information
    Schema ASCII
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