Oregon Wetland Mapping Standard

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Oregon Wetland MappingStandard

• Draft Version 2.0 March 2009
• Replaces Version 1Endorsed by OGIC December 2006

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Goals

• Consistent and compatible
• Easy to integrate
• Easy to disseminate
• Does not preclude different datasets, but
  shared datasets must meet minimum OWMS.

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Why a Revision?

• FGDC Draft Federal Wetlands Mapping Standard,
  September 2008
• DSL Administrative Rules, January 2009
• OSU TWC Oregon Wetland Layer
• Oregon Explorer Wetlands Portal
• OWMS Version 1 inadequate

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Current wetland datasets in Oregon

• NWI wetlands
• NRCS -- hydric soils
• NHD -- waterbodies and springs
• OSU -- vegetation and conservation
• TWC -- conservation
• OWEB -- wetland restoration projects (OWRI)
• ODFW -- Conservation Opp Areas from WCS
• DSL fill removal, mitigation, LWIs,
  delineations
• USFS, BLM, USFWS, OPRD wetlands, vegetation,
  condition

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Enhanced NWI

• Local Wetland Inventories (LWIs)
• Miscellaneous wetland mapping
• Agencies, NGOs
• Theses, reports
• Plot data
• Wetland delineations

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• LWIs (Corvallis)
• Blue NWI, Red LWI
• Available data
• Cowardin
• HGM
• Veg
• Condition
• Conservation Status

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• Wetland Mapping
• Cowardin
• HGM code
• Vegetation
• Conservation Status
• Data Sources

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Informal Review of Draft Version 2

• DSL
• ODOT
• OWEB
• INR-ORNHIC
• TWC
• Consultants

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Basics

• Projection -- Oregon Lambert
• Source Imagery CIR min. 1m (FGDC)
• Interim NAIP _at_ 0.5 m
• Horizontal Accuracy min. 5 m (FGDC)
• Vertical Accuracy not specified (FGDC)
• TMU 0.2 ha, 0.5 ac (FGDC)
• LWIs WCPS (DSL) 0.04 ha, 0.1 ac
• Metadata -- Oregon Standard

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Minimum Attributes

• Sitename
• Data source yr
• Creator yr
• Method
• Data accuracy
• Cowardin

• Cowardin source
• HGM
• HGM source
• Poly source ID
• Field verification
• Data source type

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Optional Attributes

• Hydro barriers
• Artificial drain
• Altered flows
• Wetland mgt
• Cover type
• Veg species

• Veg condition
• Veg source yr
• LSW
• Goal 5 or 16
• SAC
• Developed