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Areas of uncertainty for flood inundation extents at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_breach.shp) ​The basis for these features is U.S. Geological Survey Scientific Investigations Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9-mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon, to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas, and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from lidar data flown in 2015 and provided by the Oregon Department... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Johnson Creek, Portland, Oregon, Willamette Valley, digital elevation models, floods, All tags... hydrology, inlandWaters, stream discharge, streamflow, Fewer tags 2012 Air and Temperature Data from Shenandoah National Park Raw data were collected in Shenandoah National Park during summer 2012. Air and temperature data were collected using temperature loggers at several stations throughout the park. These data were used in the publication of the manuscript "Accounting for groundwater influence on headwater stream thermal sensitivity to climate change" through the journal Ecological Applications. Water temperature data were collected at all 78 reach locations during the summer of 2012 (23 June–7 September). Temperature was measured every hour with a logger. Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climatic change, Ecological evaluation, Fish habitats, Ground water, Shenandoah National Park, All tags... Streams, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-1986 Spatial polygons of vegetation zones in 1986 for wetlands; P1, P2, P3, P4, P7, T3, T4, T5, T6, and T7 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 1986 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-1990 Spatial polygons of vegetation zones in 1990 for wetlands; P2, P3, P4, P6, P7, P8, P11, T2, T3, T4, T5, T6, T7, and T8 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during July 1990 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (deep contours shapefile) This dataset is the result of measurements of groundwater levels in the Equus Beds aquifer near Wichita, Kansas, in January 2016. Potentiometric surfaces are interpolated for the shallow and deep parts of the aquifer, and rasters of the potentiometric surfaces are included in this data release. Wells were classified as being screened in the shallow or deep parts of the aquifer based on station name (some wells have a layer identifier in the station name) or, if no indication of aquifer layer was given in the station name, based on the depth of the well; wells with depths less than 80 feet below land surface were classified as shallow and wells with depths of 80 feet or deeper were classified as deep. Contours with... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas River, Bentley, Burrton, Equus Beds aquifer, Halstead, All tags... Harvey County, High Plains aquifer, Kansas, Kisiwa Creek, Little Arkansas River, Sedgwick, Sedgwick County, Wichita, aquifer, groundwater, groundwater level, hydrology, water-level altitude, Fewer tags Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (shallow contours shapefile) This dataset is the result of measurements of groundwater levels in the Equus Beds aquifer near Wichita, Kansas, in January 2016. Potentiometric surfaces are interpolated for the shallow and deep parts of the aquifer, and rasters of the potentiometric surfaces are included in this data release. Wells were classified as being screened in the shallow or deep parts of the aquifer based on station name (some wells have a layer identifier in the station name) or, if no indication of aquifer layer was given in the station name, based on the depth of the well; wells with depths less than 80 feet below land surface were classified as shallow and wells with depths of 80 feet or deeper were classified as deep. Contours with... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas River, Bentley, Burrton, Equus Beds aquifer, Halstead, All tags... Harvey County, High Plains aquifer, Kansas, Kisiwa Creek, Little Arkansas River, Sedgwick, Sedgwick County, Wichita, aquifer, groundwater, groundwater level, hydrology, water-level altitude, Fewer tags Transgressive Contours--Point Conception to Hueneme Canyon, California This part of DS 781 presents data for the transgressive contours for the Point Conception to Hueneme Canyon, California, region. The vector file is included in "TransgressiveContours_PointConceptionToHuenemeCanyon.zip," which is accessible from http://dx.doi.org/10.5066/F7891424. As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Point Conception and Hueneme Canyon was generated from seismic-reflection data collected in 2014 (USGS activity 2014-632-FA) supplemented with outcrop and geologic structure (fault) information following the methodology of Wong (2012). Water depths determined from bathymetry data were... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Carpinteria, Coal Oil Point, Gaviota, Hueneme Canyon, Pacific Ocean, All tags... Point Conception, Refugio Beach, Santa Barbara, Santa Barbara Channel, Santa Barbara County, State of California, Ventura, coastal geology, environment, geoscientificInformation, geospatial datasets, maps and atlases, marine geology, oceans, sediment deposition, sediment thickness, stratigraphic thickness, Fewer tags Isopachs--Point Conception to Hueneme Canyon, California This part of DS 781 presents data for the isopachs for the Point Conception to Hueneme Canyon, California, region. The vector data file is included in "Isopachs_PointConceptionToHuenemeCanyon.zip," which is accessible from https://doi.org/10.5066/F7891424. As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Point Conception and Hueneme Canyon was generated from seismic-reflection data collected in 2014 (USGS activity 2014-632-FA) supplemented with outcrop and geologic structure (fault) information following the methodology of Wong (2012). This sediment thickness layer was merged with a previously published sediment... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Carpinteria, Coal Oil Point, Gaviota, Hueneme Canyon, Pacific Ocean, All tags... Point Conception, Refugio Beach, Santa Barbara, Santa Barbara Channel, Santa Barbara County, State of California, Ventura, coastal geology, environment, geoscientificInformation, geospatial datasets, maps and atlases, marine geology, oceans, sediment deposition, sediment isopach, sediment thickness, stratigraphic thickness, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-1975 Spatial polygons of vegetation zones in 1975 for wetlands; P1, P2, and P4 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 1975 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-1988 Spatial polygons of vegetation zones in 1988 for wetlands; P1, P2, P3, P4, P7, P8, T2, T3, T4, T5, T6, T7, T8, and T9 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 1988 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-2000 Spatial polygons of vegetation zones in 2000 for wetlands; P1, P2, P3, P4, P6, P7, P8, P11, T1, T2, T3, T4, T5, T6, T7, T8, and T9 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 2000 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-2009 Spatial polygons of vegetation zones in 2009 for wetlands; P1, P2, P3, P4, P6, P7, P8, P11, T1, T2, T3, T4, T5, T6, T7, T8, and T9 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 2009 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-1979 Spatial polygons of vegetation zones in 1979 for wetlands; P3, P4, T3, T4, T5, T6, and T8 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 1979 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-2010 Spatial polygons of vegetation zones in 2010 for wetlands; P1, P2, P3, P4, P6, P7, P8, P11, T1, T2, T3, T4, T5, T6, T7, T8, and T9 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 2010 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-1983 Spatial polygons of vegetation zones in 1983 for wetlands; P1, P2, P3, P4, P7, P8, T2, T3, T4, T5, T6, T7, T8, and T9 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 1983 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Study Boundary for the U.S. Geological Survey Midwest Stream Quality Assessment In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA), the USGS Columbia Environmental Research Center, and the U.S. Environmental Protection Agency (USEPA) National Rivers and Streams Assessment (NRSA). One of the objectives of the RSQA, and thus the MSQA, is to characterize the relationships between water-quality stressors and stream ecology and to determine the relative effects of these stressors on aquatic biota within the streams (U.S. Geological Survey, 2012). To meet this objective, a framework of fundamental... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Ecoregions, Geographic Information Systems, Geospatial Analysis, Geospatial Datasets, Illinois, All tags... Indiana, Iowa, Kansas, Kentucky, MSQA, Michigan, Midwest, Midwest Stream Quality Assessment, Minnesota, Missouri, National Water Quality Assessment, Nebraska, Ohio, RSQA, Regional Stream Quality Assessment, South Dakota, Study boundary, Wisconsin, inlandWaters, Fewer tags Gravity Data - Final results The dataset consists of final gravity values and gravity differences. Gravity values were obtained from network adjustment of relative gravity and absolute gravity measurements. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado River, Hydrology Pacific Walrus Coastal Haulout Database 1852-2016 We summarize available information on Pacific walrus haulouts from available reports, interviews with coastal residents and aviators, and personal observations of the authors. We provide this in the form of a georeferenced database that may be queried and displayed with standard geographic information system and database management software. The database contains 150 records of Pacific walrus haulouts, with a summary of basic characteristics on maximum haulout size, age-sex composition, season of use, and decade of most recent use. Citations to reports are provided as a bibliographic database. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Arctic, Arctic Ocean, Beaufort Sea, Bering Sea, All tags... Chukchi Sea, Chukotka, East Siberian Sea, Kamchatka, Pacific Ocean, Russian Far East, biota, coast, haulout, marine, marine mammals, Fewer tags Cottonwood Lake Study Area-Wetland Vegetation Zones-1980 Spatial polygons of vegetation zones in 1980 for wetlands; P1, P2, P3, P4, P7, P8, T3, T4, T5, T8, and T9 within the Cottonwood Lake Study Area, Stutsman County, North Dakota. Created from a collection of digital orthorectified images from aerial photographs of the study area acquired during 1980 using Stewart and Kantrud classification system. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Lake Study Area, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>AQUATIC ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>LACUSTRINE WETLANDS, EARTH SCIENCE>BIOSPHERE>TERRESTRIAL ECOSYSTEMS>WETLANDS>PALUSTRINE WETLANDS, All tags... EARTH SCIENCE>BIOSPHERE>VEGETATION>VEGETATION COVER, North Dakota, Northern Great Plains, Prairie Pothole Region, Stutsman County, United States of America, Vegetation changes, Wetlands, aquatic vegetation, biota, environment, inlandWaters, surface water (non-marine), wetland ecosystems, Fewer tags Flood inundation extents for flows of 800 to 3,080 cfs at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor.shp) The basis for these features is U.S. Geological Survey Scientific Investigations Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9-mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon, to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas, and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from lidar data flown in 2015 and provided by the Oregon Department... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Johnson Creek, Portland, Oregon, Willamette Valley, digital elevation models, floods, All tags... hydrology, inlandWaters, stream discharge, streamflow, Fewer tags 1 2 3 4 »