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• 1. [Article] Penumbra : A Spatiotemporal Shade-Irradiance Analysis Tool with External Model Integration for Landscape Assessment, Habitat Enhancement, and Water Quality Improvement

  Several solar energy models exist, but all models must balance: computational runtime, light complexity, and model output volume. These models span the spectrum of simplistic global solar energy equation ...

  Citation × Citation Citation Abstract Copy Title: Penumbra : A Spatiotemporal Shade-Irradiance Analysis Tool with External Model Integration for Landscape Assessment, Habitat Enhancement, and Water Quality Improvement Author: Halama, Jonathan James Several solar energy models exist, but all models must balance: computational runtime, light complexity, and model output volume. These models span the spectrum of simplistic global solar energy equation sets to complex light ray-tracing models. Spatiotemporally inaccurate representations of solar energy may cause compounding simulation effects and introduce unknown modeling uncertainty. Within the current solar energy modeling spectrum was the need to advance large watershed area spatiotemporal irradiance modeling. A model utilizing methods simpler than ray-tracing that still accounted for the major environmental light reduction factors was needed. The model developed we called Penumbra. Penumbra provides solar energy reduction from topographic shadowing, forest shadowing, and cloud coverage at landscape scales. Penumbra was developed to function as a stand-alone model, but also be capable of integration within existing ecosystem models. Penumbra’s intended audience include ecosystem modelers, land owners, watershed councils, county, state, and federal entities; any group needing an enhanced understanding of how light energy impacts processes within their landscapes. The questions being asked by my intended audience regard riparian zone restoration, fish habitat restoration, and improved forest management. To address these questions, a well-functioning shade|irradiance model capable of assisting with multiyear landscape assessments was needed. Title: Penumbra : A Spatiotemporal Shade-Irradiance Analysis Tool with External Model Integration for Landscape Assessment, Habitat Enhancement, and Water Quality Improvement Author: Halama, Jonathan James Several solar energy models exist, but all models must balance: computational runtime, light complexity, and model output volume. These models span the spectrum of simplistic global solar energy equation sets to complex light ray-tracing models. Spatiotemporally inaccurate representations of solar energy may cause compounding simulation effects and introduce unknown modeling uncertainty. Within the current solar energy modeling spectrum was the need to advance large watershed area spatiotemporal irradiance modeling. A model utilizing methods simpler than ray-tracing that still accounted for the major environmental light reduction factors was needed. The model developed we called Penumbra. Penumbra provides solar energy reduction from topographic shadowing, forest shadowing, and cloud coverage at landscape scales. Penumbra was developed to function as a stand-alone model, but also be capable of integration within existing ecosystem models. Penumbra’s intended audience include ecosystem modelers, land owners, watershed councils, county, state, and federal entities; any group needing an enhanced understanding of how light energy impacts processes within their landscapes. The questions being asked by my intended audience regard riparian zone restoration, fish habitat restoration, and improved forest management. To address these questions, a well-functioning shade|irradiance model capable of assisting with multiyear landscape assessments was needed. Close

• 2. [Article] Calapooya Creek Watershed assessment and action plan

  The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information ...

  Citation × Citation Citation Abstract Copy Title: Calapooya Creek Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Calapooya Creek Watershed Analysis (USDI Bureau of Land Management, 1999), and the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Title: Calapooya Creek Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Calapooya Creek Watershed Analysis (USDI Bureau of Land Management, 1999), and the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Close

• 3. [Article] Deer Creek Watershed assessment and action plan

  The Deer Creek Watershed Assessment process has been followed by a group of local landowners. The organization of this document was constructed as a combination of the informational needs of the Deer Creek ...

  Citation × Citation Citation Abstract Copy Title: Deer Creek Watershed assessment and action plan Author: Kincaid, Heidi The Deer Creek Watershed Assessment process has been followed by a group of local landowners. The organization of this document was constructed as a combination of the informational needs of the Deer Creek landowners and the framework of the Oregon Watershed Assessment Manual. The group has met twelve times to review the data going into the document, followed by three meetings to review the assessment and develop the action plan. Members of the Deer Creek landowner group represented sheep ranches, cattle ranches, industry within Deer Creek, the City of Roseburg, private industrial timber companies, city residents, rural residents, the UBWC, the Bureau of Land Management (BLM), the Department of Environmental Quality (DEQ), the Douglas Soil and Water Conservation District (DSWCD), and the Douglas Small Woodlands Association. Title: Deer Creek Watershed assessment and action plan Author: Kincaid, Heidi The Deer Creek Watershed Assessment process has been followed by a group of local landowners. The organization of this document was constructed as a combination of the informational needs of the Deer Creek landowners and the framework of the Oregon Watershed Assessment Manual. The group has met twelve times to review the data going into the document, followed by three meetings to review the assessment and develop the action plan. Members of the Deer Creek landowner group represented sheep ranches, cattle ranches, industry within Deer Creek, the City of Roseburg, private industrial timber companies, city residents, rural residents, the UBWC, the Bureau of Land Management (BLM), the Department of Environmental Quality (DEQ), the Douglas Soil and Water Conservation District (DSWCD), and the Douglas Small Woodlands Association. Close

• 4. [Article] Lower Cow Creek Watershed assessment and action plan

  The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information ...

  Citation × Citation Citation Abstract Copy Title: Lower Cow Creek Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower Cow Creek Watershed Analysis (USDI Bureau of Land Management, 2002), and the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Title: Lower Cow Creek Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower Cow Creek Watershed Analysis (USDI Bureau of Land Management, 2002), and the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Close

• 5. [Article] Lower South Umpqua Watershed assessment and action plan

  The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information ...

  Citation × Citation Citation Abstract Copy Title: Lower South Umpqua Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 were compiled from the following documents: The Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000), and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Title: Lower South Umpqua Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 were compiled from the following documents: The Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000), and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Close

• 6. [Article] Middle Cow Creek Watershed assessment and action plan

  The Middle Cow Creek Watershed Assessment process has been contributed to by a group of local landowners. The group met fifteen times to review data about their watershed going into the document and portions ...

  Citation × Citation Citation Abstract Copy Title: Middle Cow Creek Watershed assessment and action plan Author: Kincaid, Heidi The Middle Cow Creek Watershed Assessment process has been contributed to by a group of local landowners. The group met fifteen times to review data about their watershed going into the document and portions of the watershed assessment. Members of the Middle Cow Creek landowner group represented private landowners, private industrial timber companies, rural residents, the City of Glendale, the Bureau of Land Management Medford District (BLM), the Oregon Department of Forestry, the UBWC, and the Oregon Department of Environmental Quality (DEQ). Title: Middle Cow Creek Watershed assessment and action plan Author: Kincaid, Heidi The Middle Cow Creek Watershed Assessment process has been contributed to by a group of local landowners. The group met fifteen times to review data about their watershed going into the document and portions of the watershed assessment. Members of the Middle Cow Creek landowner group represented private landowners, private industrial timber companies, rural residents, the City of Glendale, the Bureau of Land Management Medford District (BLM), the Oregon Department of Forestry, the UBWC, and the Oregon Department of Environmental Quality (DEQ). Close

• 7. [Article] Middle South Umpqua Watershed assessment and action plan

  The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information ...

  Citation × Citation Citation Abstract Copy Title: Middle South Umpqua Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the following sources: The Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000), and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Title: Middle South Umpqua Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the following sources: The Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000), and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Close

• 8. [Article] Myrtle Creek Watershed assessment and action plan

  The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information ...

  Citation × Citation Citation Abstract Copy Title: Myrtle Creek Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 were compiled from the following documents: the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Draft Myrtle Creek Watershed Analysis (USDI Bureau of Land Management, 2002), and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Title: Myrtle Creek Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 were compiled from the following documents: the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Draft Myrtle Creek Watershed Analysis (USDI Bureau of Land Management, 2002), and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Close

• 9. [Article] Olalla / Lookingglass Watershed assessment and action plan

  The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information ...

  Citation × Citation Citation Abstract Copy Title: Olalla / Lookingglass Watershed assessment and action plan Author: DeVore, Matt B., Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in Sections 1.2 and 1.3 were compiled from the following documents: The Oregon Watershed Assessment Manual, the Olalla / Lookingglass Watershed Analysis, and the Middle South Umpqua Watershed Analysis. Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Title: Olalla / Lookingglass Watershed assessment and action plan Author: DeVore, Matt B., Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in Sections 1.2 and 1.3 were compiled from the following documents: The Oregon Watershed Assessment Manual, the Olalla / Lookingglass Watershed Analysis, and the Middle South Umpqua Watershed Analysis. Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Close

• 10. [Article] South Umpqua River Watershed assessment and action plan

  The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information ...

  Citation × Citation Citation Abstract Copy Title: South Umpqua River Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000), the Myrtle Creek Watershed Analysis (Draft) (USDI Bureau of Land Management, 2002) and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Title: South Umpqua River Watershed assessment and action plan Author: Geyer, Nancy A. The introduction provides a general description of the watershed in terms of its natural and human-made features, ownership and current land uses, and the communities within the watershed. Information in sections 1.2 and 1.3 was compiled from the Oregon Watershed Assessment Manual (Watershed Professionals Network, 1999), the Lower South Umpqua Watershed Analysis (USDI Bureau of Land Management, 2000), the Myrtle Creek Watershed Analysis (Draft) (USDI Bureau of Land Management, 2002) and the Middle South Umpqua Watershed Analysis (USDI Bureau of Land Management, 1999). Additional information is from the following sources’ databases: The Oregon Climate Service, the US Census Bureau, and the Douglas County Assessor. Close