Dataset Identification:
Resource Abstract:
- description: National Vegetation Classification (NVC) map for Fish Springs National Wildlife Refuge. NVC provides a standardized
hierarchical approach to classifying vegetation and this standard is being implemented by federal, state, tribal, and non-profit
organizations throughout the United States. In order to maximize the efficiency and usefulness of the Refuges mapping project
in support of management needs, mapping was completed to the NVC Alliance level (dominant species). Mapping took place in
the following 8 stages: (1) Site visits were conducted and 16 NVC Alliances that best fit dominate vegetation cover at Fish
Springs NWR were selected; (2) 14 Project Codes (PCs) were defined to meet managements mapping needs in conditions that do
not meet a published NVC Alliance; (3) Prior to heading into the field, an initial digitization effort was completed where
recognizable stands of dominant vegetation were digitized using a 2006 NAIP aerial image; (4) The initial digitizing effort
was improved upon through a ground-truthing process in the field using established mapping standards and diagnostic criteria;
(5) Once all vegetation mapping across the Refuge was completed, a re-verification effort in the field was conducted, and
corrections were made where needed; (6) A digital editing review was completed to identify any potential digital mapping errors,
and if needed sites were revisited; (7) A stratified random sampling method was utilized to assess map accuracy, and any identified
errors were corrected; (8) The baseline NVC vegetation map (alliance level) was then utilized to create additional classification
categories of broader habitat types and water regimes.Of the available 30 mapping categories (Alliances and PCs) established
for the mapping effort, 28 were utilized within the final NVC vegetation map. A total of 819 randomly selected assessment
points were visited for the final accuracy assessment, resulting in a final map accuracy of 96.7%.; abstract: National Vegetation
Classification (NVC) map for Fish Springs National Wildlife Refuge. NVC provides a standardized hierarchical approach to classifying
vegetation and this standard is being implemented by federal, state, tribal, and non-profit organizations throughout the United
States. In order to maximize the efficiency and usefulness of the Refuges mapping project in support of management needs,
mapping was completed to the NVC Alliance level (dominant species). Mapping took place in the following 8 stages: (1) Site
visits were conducted and 16 NVC Alliances that best fit dominate vegetation cover at Fish Springs NWR were selected; (2)
14 Project Codes (PCs) were defined to meet managements mapping needs in conditions that do not meet a published NVC Alliance;
(3) Prior to heading into the field, an initial digitization effort was completed where recognizable stands of dominant vegetation
were digitized using a 2006 NAIP aerial image; (4) The initial digitizing effort was improved upon through a ground-truthing
process in the field using established mapping standards and diagnostic criteria; (5) Once all vegetation mapping across the
Refuge was completed, a re-verification effort in the field was conducted, and corrections were made where needed; (6) A digital
editing review was completed to identify any potential digital mapping errors, and if needed sites were revisited; (7) A stratified
random sampling method was utilized to assess map accuracy, and any identified errors were corrected; (8) The baseline NVC
vegetation map (alliance level) was then utilized to create additional classification categories of broader habitat types
and water regimes.Of the available 30 mapping categories (Alliances and PCs) established for the mapping effort, 28 were utilized
within the final NVC vegetation map. A total of 819 randomly selected assessment points were visited for the final accuracy
assessment, resulting in a final map accuracy of 96.7%.
Citation
- Title Fish Springs National Wildlife Refuge National Vegetation Classification (NVC) map.
-
- creation Date
2018-05-19T08:13:34.305624
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-07T00:48:08Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-07T00:48:08Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:ea2a95dc-6e48-4a45-ab9b-b0d593730ba1
Metadata record format is ISO19139 XML (MD_Metadata)