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Biosurvey News The Newsletter of the Oklahoma Biological Survey Spring 2012 Systematic inventories and standardized classifications of the nation's biological resources are prerequisites to efficient natural resource stewardship. Resource professionals in Oklahoma, representing federal, state and nonprofit entities, have identified the need for a contemporary, scalable land cover dataset. Such a land cover dataset has an assortment of potential utilities for resource management, from habitat assessment to climate change monitoring. The last statewide land cover dataset for Oklahoma was released in 2001. However, it was based on Landsat TM satellite imagery from 1991 to1993. In addition to the age of the source material, an accuracy assessment indicated the data suffers from poor land cover predictability. Moreover, the vegetation classification was based upon an older schema (UNESCO 1973), predating more recent efforts to standardize land cover classification by the Federal Geographic Data Committee's National Vegetation Classification Standard (FGDC 1997; 2008) or the recently devised Ecological Systems classification by NatureServe. The true shortcoming of many state-level vegetation land cover maps produced in the 1980s and 1990s due to lack of classification standardization became evident when attempts were made to join each state into a seamless national map. To reconcile the need for an updated land cover map, the Oklahoma Geographic Information Council formed an ad hoc Landcover Workgroup in January 2010. Working group members include federal, state, and tribal agencies and non-governmental organizations. Participating organizations include the Oklahoma Biological Survey, U.S. Fish and Wildlife Service, U.S. Geological Survey, Oklahoma Office of Geographic Information, Oklahoma Water Resources Board, Oklahoma Chapter of the Nature Conservancy, Natural Resources Conservation Service, Center for Spatial Analysis at the University of Oklahoma, Playa Lakes Joint Venture, and Chickasaw Nation. Together, they collaborated to establish project priorities and methodologies, to identify data availability, and to discuss potential funding opportunities. Representatives from the Oklahoma Biological Survey volunteered to take the lead on attempting to secure funding and the creation of the new land cover dataset. Continued on page 4 An Updated Land Cover Map for Oklahoma The phase 1 classification area in relationship to Omernik's Level III ecoregions. Map courtesy of Todd Fagin.
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Title | Biosurvey_News_Spring_2012 1 |
Full text | Biosurvey News The Newsletter of the Oklahoma Biological Survey Spring 2012 Systematic inventories and standardized classifications of the nation's biological resources are prerequisites to efficient natural resource stewardship. Resource professionals in Oklahoma, representing federal, state and nonprofit entities, have identified the need for a contemporary, scalable land cover dataset. Such a land cover dataset has an assortment of potential utilities for resource management, from habitat assessment to climate change monitoring. The last statewide land cover dataset for Oklahoma was released in 2001. However, it was based on Landsat TM satellite imagery from 1991 to1993. In addition to the age of the source material, an accuracy assessment indicated the data suffers from poor land cover predictability. Moreover, the vegetation classification was based upon an older schema (UNESCO 1973), predating more recent efforts to standardize land cover classification by the Federal Geographic Data Committee's National Vegetation Classification Standard (FGDC 1997; 2008) or the recently devised Ecological Systems classification by NatureServe. The true shortcoming of many state-level vegetation land cover maps produced in the 1980s and 1990s due to lack of classification standardization became evident when attempts were made to join each state into a seamless national map. To reconcile the need for an updated land cover map, the Oklahoma Geographic Information Council formed an ad hoc Landcover Workgroup in January 2010. Working group members include federal, state, and tribal agencies and non-governmental organizations. Participating organizations include the Oklahoma Biological Survey, U.S. Fish and Wildlife Service, U.S. Geological Survey, Oklahoma Office of Geographic Information, Oklahoma Water Resources Board, Oklahoma Chapter of the Nature Conservancy, Natural Resources Conservation Service, Center for Spatial Analysis at the University of Oklahoma, Playa Lakes Joint Venture, and Chickasaw Nation. Together, they collaborated to establish project priorities and methodologies, to identify data availability, and to discuss potential funding opportunities. Representatives from the Oklahoma Biological Survey volunteered to take the lead on attempting to secure funding and the creation of the new land cover dataset. Continued on page 4 An Updated Land Cover Map for Oklahoma The phase 1 classification area in relationship to Omernik's Level III ecoregions. Map courtesy of Todd Fagin. |
Date created | 2012-06-29 |
Date modified | 2012-06-29 |