Oregon Wetland MappingStandard

Draft Version 2.0 March 2009

Replaces Version 1Endorsed by OGIC December 2006

Goals

• Consistent and compatible

• Easy to integrate

• Easy to disseminate

• Does not preclude different datasets, but shared datasets must meet minimum OWMS.

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

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

“Enhanced NWI”• Local Wetland

Inventories (LWIs)

• Miscellaneous wetland mapping – Agencies, NGOs– Theses, reports– Plot data

• Wetland delineations

LWIs (Corvallis)

Blue = NWI, Red = LWI

Available data:– Cowardin– HGM– Veg– Condition– Conservation Status

Wetland Mapping

• Cowardin

• HGM code

• Vegetation

• Conservation Status

• Data Sources

Informal Review of Draft Version 2

• DSL

• ODOT

• OWEB

• INR-ORNHIC

• TWC

• Consultants

Basics

• Projection -- Oregon Lambert

• Source Imagery – CIR min. 1m (FGDC)– Interim: NAIP @ 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

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

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