| snippet:
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Certain landslides can trigger a debris flow, these are referred to as "trigger sources". The Designated Sediment Source Areas, related to PFA prescriptions, are typically located high in the headwalls of the PFA-designated Debris Flow Traversal Area Subbasins. Trigger Sources are delineated to identify those Designated Sediment Source Areas with the greatest expected sensitivity to tree removal so that needed yarding corridors can be placed through less sensitive zones. |
| summary:
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Certain landslides can trigger a debris flow, these are referred to as "trigger sources". The Designated Sediment Source Areas, related to PFA prescriptions, are typically located high in the headwalls of the PFA-designated Debris Flow Traversal Area Subbasins. Trigger Sources are delineated to identify those Designated Sediment Source Areas with the greatest expected sensitivity to tree removal so that needed yarding corridors can be placed through less sensitive zones. |
| extent:
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[[-124.670345609487,41.963801152553],[-121.658598534967,46.2256740278539]] |
| accessInformation:
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Private Forest Accord Steep Slope Prescriptions; please refer to Appendix B: Delineating Landslide and Debris Flow Susceptibility in the Private Forest Accord (2022) Report. |
| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E308 |
| typeKeywords:
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["Data","Service","Map Service","ArcGIS Server"] |
| description:
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<div style='text-align:Left;font-size:12pt'><p><span>Hillslope areas are ranked by the potential for initiation of a landslide that triggers debris flows to fish streams that originate from within each Designated Sediment Source Area</span><span><span>. The zones containing the most susceptible fifth (20%) of these initiation sites are referred to as </span></span><span>Trigger Sources. </span></p></div> |
| licenseInfo:
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<div style='text-align:Left;font-size:12pt'><p style='margin:0 0 11 0;'><span><span>The Oregon Department of Forestry GIS data is derived from a variety of sources. The digital data and their documentation have been reviewed for accuracy and completeness, however, the Oregon Department of Forestry and its representatives make no warranty or representation, either expressed or implied, with respect to the digital data and their documentation, their quality, performance, merchantability, or fitness for a particular purpose. Digital data are distributed on “AS IS” basis and the users assume all risk as to their quality, the results obtained from their use, and the performance of the data.</span></span></p></div> |
| catalogPath:
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|
| title:
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TriggerSource |
| type:
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Map Service |
| url:
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|
| tags:
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["ODF","Oregon","Oregon Department of Forestry","PFA","Private Forest Accord","Steep Slopes","Topography","Forest Resources"] |
| culture:
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en-US |
| name:
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TriggerSource |
| guid:
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C0B87C2D-FD1F-4EDC-B779-CB28D30DA446 |
| minScale:
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0 |
| spatialReference:
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NAD_1983_Oregon_Statewide_Lambert_Feet_Intl |