Name: Flow Lines

Display Field: StreamName

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Oregon </SPAN><A href="https://www.oregon.gov:443/odf/aboutodf/documents/2022-odf-private-forest-accord-report.pdf" STYLE="text-decoration:underline;"><SPAN>Private Forest Accord</SPAN></A><SPAN> and Forest Practices Act specified the methodology to develop and maintain the Statewide Flow Line data. Initial development of these data began with using best available Digital Elevation Models (DEMs) to model a synthetic stream network. Where available, lidar DEMs were resampled to a 2 meter resolution. Where lidar was not available, the National Elevation Dataset (NED, resolution of 10 meters) was used. After streams were model the Fransen fish model (Brian R. Fransen, Steven D. Duke, L. Guy McWethy, Jason K. Walter &amp; Robert E. Bilby. 2006. A Logistic Regression Model for Predicting the Upstream Extent of Fish Occurrence Based on Geographical Information Systems Data, North American Journal of Fisheries Management, 26:4, 960-975, DOI: 10.1577/M04-187.1) was applied to predict fish presence for all streams across Oregon. Historic ODF data (maintained in the ODF Statewide Streams Fish Presence dataset) was then conflated to the synthetic streams to overwrite the fish model outputs with any valid fish survey. These data were checked by Oregon Department of Forestry (ODF) and Oregon Department of Fish &amp; Wildlife (ODFW) GIS staff to meet minimum conflation success rates. Errors were identified and documented for future updates.</SPAN></P><P><SPAN>The Flow Line data will be continuously updated with fish and flow permanence surveys, following established protocols and workflows developed by ODF and ODFW. Errors in conflation with historic data, and errors in geometry from the DEM modeling will also continue to be corrected. This data should be treated as a dynamic layer, with any export product frequently updated to ensure the most current information is being used.</SPAN></P></DIV></DIV></DIV>

Service Item Id: 43dcb923fef74001b912326a2a5112c0

Copyright Text: Oregon Department of Forestry GIS (GIS Unit and Forest Resources GIS staff); Oregon Department of Fish and Wildlife Natural Resource Information Management Program; TerrainWorks

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Spatial Reference: 102100  (3857)

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• GlobalID ( type: esriFieldTypeGlobalID, alias: GlobalID, length: 38 )
• FishPresence ( type: esriFieldTypeSmallInteger, alias: Fish Presence , Coded Values: [1: Fish] , [2: Non-Fish] , [9999: NA - No Channel] )
• FPAStreamSize ( type: esriFieldTypeSmallInteger, alias: FPA Stream Size , Coded Values: [1: Small] , [2: Medium] , [3: Large] , ...1 more... )
• FishVerificationMethod ( type: esriFieldTypeSmallInteger, alias: Fish Verification Method , Coded Values: [1: Assumed] , [2: Dphys] , [3: Survey Verified] , ...2 more... )
• FishVerificationSource ( type: esriFieldTypeSmallInteger, alias: Fish Verification Source , Coded Values: [1: ODF] , [2: ODFW] , [3: Landowner] , ...7 more... )
• Barrier ( type: esriFieldTypeSmallInteger, alias: Fish Barrier , Coded Values: [1: Culvert] , [3: Natural] , [4: None] , ...2 more... )
• BarrierYear ( type: esriFieldTypeSmallInteger, alias: Fish Barrier Year , Coded Values: [1992: 1992] , [1993: 1993] , [1994: 1994] , ...34 more... )
• FPAStreamSizeSource ( type: esriFieldTypeSmallInteger, alias: FPA Stream Size Source , Coded Values: [1: Field] , [2: DEM] , [3: Calculated] , ...1 more... )
• StreamName ( type: esriFieldTypeString, alias: Stream Name, length: 50 )
• StreamPermanence ( type: esriFieldTypeSmallInteger, alias: Stream Permanence , Coded Values: [1: Perennial] , [2: Seasonal] , [9999: NA - No Channel] )
• StreamPermanenceSource ( type: esriFieldTypeSmallInteger, alias: Stream Permanence Source , Coded Values: [1: NHD] , [2: Survey] , [3: Model] )
• DistanceToFish ( type: esriFieldTypeDouble, alias: Distance to Known Fish Presence )
• DistanceToSSBT ( type: esriFieldTypeDouble, alias: Distance to Known SSBT )
• SSBTStatus ( type: esriFieldTypeSmallInteger, alias: SSBT Status , Coded Values: [1: SSBT-CPO] , [2: SSBT-OBS] , [3: No SSBT] , ...1 more... )
• StreamTermination ( type: esriFieldTypeSmallInteger, alias: Stream Termination , Coded Values: [1: Terminal] , [2: Lateral] , [9999: None] )
• StreamWaterUse ( type: esriFieldTypeSmallInteger, alias: Stream Water Use , Coded Values: [1: Community] , [2: Domestic] , [9999: Unknown] , ...1 more... )
• GeometrySource ( type: esriFieldTypeSmallInteger, alias: Geometry Source , Coded Values: [1: Lidar] , [2: NED 10M] )
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• FishPresenceSurveyDate ( type: esriFieldTypeDate, alias: Fish Presence Survey Date, length: 8 )
• FishPresenceSurveyID ( type: esriFieldTypeString, alias: Fish Presence Survey ID, length: 50 )
• FishPresenceModDate ( type: esriFieldTypeDate, alias: Fish Presence Modification Date, length: 8 )
• BarrierModDate ( type: esriFieldTypeDate, alias: Fish Barrier Modification Date, length: 8 )
• BarrierSurveyID ( type: esriFieldTypeString, alias: Fish Barrier Survey ID, length: 50 )
• ChannelType ( type: esriFieldTypeSmallInteger, alias: Channel Type , Coded Values: [1: Channel] , [2: No Channel] , [3: Water Development] )
• StreamPermanenceModDate ( type: esriFieldTypeDate, alias: Stream Permanence Modification Date, length: 8 )
• StreamPermanenceSurveyID ( type: esriFieldTypeString, alias: Stream Permanence Survey ID, length: 50 )
• StreamPermanenceSurveyDate ( type: esriFieldTypeDate, alias: Stream Permanence Survey Date, length: 8 )
• SpeciesEdit ( type: esriFieldTypeSmallInteger, alias: Species Edit , Coded Values: [1: Fish Presence] , [2: SSBT Status] , [3: Both Fish Presence and SSBT Status] , ...1 more... )
• DEMSource ( type: esriFieldTypeString, alias: DEM Source, length: 254 )
• HUC8 ( type: esriFieldTypeString, alias: HUC8 Watershed Code, length: 8 )
• HUC8Name ( type: esriFieldTypeString, alias: HUC8 Watershed Name, length: 120 )

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