Filters: Tags: geomorphology (X) > Types: Citation (X)

Filters Date Range Past year (7) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (48) Shapefile (17) ArcGIS Service Definition (4) NetCDF OPeNDAP Service (1) Types Journal Citation (37) Map Service (33) OGC WFS Layer (32) OGC WMS Layer (32) Downloadable (18) More... Contacts U.S. Geological Survey - ScienceBase Arundel, T.R. Cristiana I Falvo Diab, C. Everette, A.L. More... Categories Publication (48) Data (36) Data Release - In Progress (3) Tag Types Theme (136) Place (133) USGS Scientific Topic Keyword (24) Harvest Set (25) Science Themes (1) Drought, Fire and Extreme Weather (1) Organization (1) More... Tag Schemes none (85) None (97) USGS Thesaurus (117) Alexandria Digital Library Feature Type Thesaurus (83) Geographic Names Information System (GNIS) (21) Geographic Names Information System (9) Common geographic areas (10) More... View Results as: JSON ATOM CSV

USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 0696 This metadata record describes the materials contained in stake folder 696. Stake 696 is located at latitude 36.39889, longitude -112.63056. This location was photographed in the following years: 1872, 1968 and 1972. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 0713 This metadata record describes the materials contained in stake folder 713. Stake 713 is located at latitude 36.42478, longitude -112.63036. This location was photographed in the following years: 1872 and 1968. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat date... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 2595 This metadata record describes the materials contained in stake folder 2595. Stake 2595 is located at latitude 36.392, longitude -112.629. This location was photographed in the following years: 1942 and 1993. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat date (e.g.,... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 1506 This metadata record describes the materials contained in stake folder 1506. Stake 1506 is located at latitude 36.38585, longitude -112.63963. This location was photographed in the following years: 1909 (no physical image) and 1990. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags 3) Streambed particle data Seventeen streamflow-gaging stations, operated by the U.S. Geological Survey and distributed across the Ouachita Mountains of Arkansas and Oklahoma were selected for analysis. Bed material sampling was conducted to obtain information on the particle-size distributions of the streambed materials and to determine the shapes of the individual particles comprising the streambeds. Information on stream-bed particle-size distribution was used to compute the potential rate of bed-load transport and is a parameter used in the Rosgen (Rosgen, 1996) stream reach classification system. Streambed-material particle sizes were measured using two methods. The first method was Wolman pebble counts conducted across the riffles... Types: Citation; Tags: Alum Fork Saline River, AR, Arkansas, Bankfull, Barnes Branch, AR, Bed-load, All tags... Big Fork Stream, AR, Caddo River, AR, Cossatot River, AR, Fouche LaFave River, AR, Geomorphology, Glazypeau Creek, AR, Hydraulic Geometry, Jackson Creek, AR, Kiamichi River, OK, Lewis Creek, AR, Little Missouri River, AR, Little Sugarloaf Creek, AR, Mountain Fork, OK, Oklahoma, Ouachita Mountains, Regional Curves, Rock Creek, AR, Saline River, AR, Stream Classification, Twomile Creek, AR, Fewer tags Water surface elevations recorded by submerged water level loggers in off-channel features of the middle and upper Willamette River, Oregon, Summer, 2016 Water surface elevations within seven Willamette River off-channel features (OCF; alcoves and side channels) were measured using submerged pressure transducers. Transducers were installed from late May through mid-October, 2016, when discharge of the Willamette River was between approximately 5,500 and 45,000 cubic feet per second at Salem, Oregon (USGS gage 14191000) and 3,500 to 17,500 cubic feet per second at Harrisburg, Oregon (USGS gage 14166000). Pressure transducer sensor depth was measured at all seven sites. For five of the sites, pressure transducer sensor depths were converted to water surface elevations by surveying the water surface at each transducer with a real-time kinematic global positioning system... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, Geomorphology, Oregon, RTK, USGS Science Data Catalog (SDC), All tags... Water Quality, Willamette River, inland waters, middle Willamette River, off-channel, river, surface water, upper Willamette River, water surface elevation, Fewer tags Valley-fill alluviation during the Little Ice Age (ca. A.D. 1400–1880), Paria River basin and southern Colorado Plateau, United States Valley-fill alluvium deposited from ca. A.D. 1400 to 1880 is widespread in tributaries of the Paria River and is largely coincident with the Little Ice Age epoch of global climate variability. Previous work showed that alluvium of this age is a mappable stratigraphic unit in many of the larger alluvial valleys of the southern Colorado Plateau. The alluvium is bounded by two disconformities resulting from prehistoric and historic arroyo cutting at ca. A.D. 1200–1400 and 1860–1910, respectively. The fill forms a terrace in the axial valleys of major through-flowing streams. This terrace and underlying deposits are continuous and interfinger with sediment in numerous small tributary valleys that head at the base of... Categories: Publication; Types: Citation, Journal Citation; Tags: El Nino, Geological Society of America Bulletin, Holocene, alluvial deposits, arroyos, All tags... climate effects, geomorphology, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 2411 This metadata record describes the materials contained in stake folder 2411. Stake 2411 is located at latitude 36.426, longitude -112.639. This location was photographed in the following years: 1872, 1968 and 1995. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat date... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags Effect of soil crusting on the emission and transport of wind-eroded sediment: field measurements on loamy sandy soil Field data are reported for the horizontal and vertical flux of wind-eroded sediment on an agricultural field in northern Germany. Measurements were made during a windstorm that hit the region on 18 May 1999. The magnitude of both fluxes was significantly affected by the presence of a surface crust covering the test field. Measuring the physical crust strength at 45 locations with a torvane, the relationships between crust strength (Ï„) and the horizontal (Fh) and vertical (Fv) sediment fluxes were investigated. Both fluxes decreased as the surface crust became stronger. The decay behaved as an exponential function for both types of flux. The horizontal sediment flux over a crusted surface can be accurately predicted... Categories: Publication; Types: Citation, Journal Citation; Tags: Crust strength, Geomorphology, Horizontal sediment flux, Surface crust, Vertical sediment flux, All tags... Wind erosion, Fewer tags Destabilization of streambanks by removal of invasive species in Canyon de Chelly National Monument, Arizona As part of a study to investigate the causes of channel narrowing and incision in Canyon de Chelly National Monument, the effects of Tamarisk and Russian-olive on streambank stability were investigated. In this study, root tensile strengths and distributions in streambanks were measured and used in combination with a root-reinforcement model, RipRoot, to estimate the additional cohesion provided to layers of each streambank. The additional cohesion provided by the roots in each 0.1-m layer ranged from 0 to 6.9 kPa for Tamarisk and from 0 to 14.2 kPa for Russian-olive. Average root-reinforcement values over the entire bank profile were 2.5 and 3.2 kPa for Tamarisk and Russian-olive, respectively. The implications... Categories: Publication; Types: Citation, Journal Citation; Tags: Geomorphology, american southwest, invasive species, riparian vegetation, streambank stability, All tags... tamarisk, Fewer tags Geomorphology and Campsite Data, Colorado River, Marble and Grand Canyon, Arizona This ESRI geodatabase consists of 5 feature datsets with 23 individual polygon feature classes and two raster datasets. A master campsite polygon feature class represents the boundaries of campsites identified in the 1973, 1984, and 1991 campsite inventories of the Colorado River corridor in Grand Canyon, Arizona. The other polygon feature classes represent camp locations along the Colorado River corridor in Grand Canyon, Arizona during different survey periods using different surveying techniques. The raster datasets represent sub-aerial and sub-surface sandbar surfaces at 37 long term-monitoring sites between Lees Ferry and Diamond Creek, Arizona in Grand Canyon National Park, measured in September and October... Types: Citation; Tags: Arizona, Colorado River, Diamond Creek, GIS, Grand Canyon, All tags... Grand Canyon National Park, Lees Ferry, Little Colorado River, Marble Canyon, Paria River, USGS Science Data Catalog (SDC), bathymetry, campsite, campsite area, campsite boundary, campsite inventory, campsite monitoring, campsite polygons, campsite survey, geographic information systems, geomorphology, land surveying, open sand area, raster data, recreation, sand deposits, sandbars, sonar, topography, vector data, Fewer tags Topographic Survey Data of Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2012 In 2012, the U.S. Geological Survey (USGS) in cooperation with Colorado Springs Utilities selected 10 reaches or study areas along Fountain Creek between Colorado Springs and the confluence of Fountain Creek at the Arkansas River for annual bed and bank characterization and topographic surveys. The 10 selected study areas are approximately 5 to 20 bank-full channel widths in length. The topographic surveys collected point data of location and elevation in the active channel and along both left and right banks and flood plains. Starting in 2012, USGS personnel have collected topographic survey data annually during the winter, spring, or summer using real-time kinematic Global Navigation Satellite Systems. These point... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, Colorado Springs, El Paso County, Fountain, Fountain Creek, All tags... Pueblo, Pueblo County, channel change, flood, geomorphology, sediment transport, topograhic survey, Fewer tags Proposed initiative would study Earth's weathering engine At the Earth's surface, a complex suite of chemical, biological, and physical processes combines to create the engine that transforms bedrock into soil (Figure 1). Earth's weathering engine provides nutrients to nourish ecosystems and human society mediates the transport of toxic components within the biosphere, creates water flow paths that carve and weaken bedrock, and contributes to the evolution of landscapes at all temporal and spatial scales. At the longest time scales, the weathering engine sequesters CO2, thereby influencing long-term climate change.Despite the importance of soil, our knowledge of the rate of soil formation is limited because the weathering zone forms a complex, ever-changing interface,... Categories: Publication; Types: Citation; Tags: Biogeochemical processes, Low-tempera, geomorphology Holocene debris flows on the Colorado Plateau: The influence of clay mineralogy and chemistry Holocene debris flows do not occur uniformly on the Colorado Plateau province of North America. Debris flows occur in specific areas of the plateau, resulting in general from the combination of steep topography, intense convective precipitation, abundant poorly sorted material not stabilized by vegetation, and the exposure of certain fine-grained bedrock units in cliffs or in colluvium beneath those cliffs. In Grand and Cataract Canyons, fine-grained bedrock that produces debris flows contains primarily single-layer clays—notably illite and kaolinite—and has low multilayer clay content. This clay-mineral suite also occurs in the colluvium that produces debris flows as well as in debris-flow deposits, although unconsolidated... Categories: Publication; Types: Citation; Tags: Colorado Plateau, clay mineralogy, debris flow, geomorphology, major-cation chemistry, All tags... mass wasting, sedimentary rock, Fewer tags The role of aeolian dust in ecosystems The recent upsurge in research attention to aeolian dust has shown that dust transport systems operate on very large spatial and temporal scales, and involve much larger quantities of sediment than was previously realized. An inevitable consequence of this is that researchers from a range of neighbouring disciplines, including ecology, are beginning to realize that this new knowledge has important implications for their study areas. In the present paper, we examine the ecological implications (real and potential) of this expanding knowledge of dust transport systems, with a particular emphasis upon the Australian dust transport system. We track these ecological effects from source to sink. At source, wind erosion–soil–vegetation... Categories: Publication; Types: Citation, Journal Citation; Tags: Geomorphology, aeolian processes, biological crusts, dust, dust deposition, All tags... ecosystem impacts, nutrient cycling, wind erosion, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 1096 This metadata record describes the materials contained in stake folder 1096. Stake 1096 is located at latitude 36.39583, longitude -112.62389. This location was photographed in the following years: 1872, 1974, 1983, 1990 and 1991. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 0695 This metadata record describes the materials contained in stake folder 695. Stake 695 is located at latitude 36.39194, longitude -112.62944. This location was photographed in the following years: 1872, 1968, 1972, 1990 and 1991. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags Topographic Survey Data from Photogrammetry of Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2017 In 2012, the U.S. Geological Survey (USGS) Colorado Water Science Center in cooperation with Colorado Springs Utilities selected 10 reaches or study area along Fountain Creek between Colorado Springs and the confluence of Fountain Creek at the Arkansas River for annual bed and bank characterization and topographic surveys. The 10 selected study areas are approximately 5 to 20 bank-full channel widths in length. The topographic surveys collected point data of location and elevation in the active channel and along both left and right banks and flood plains. Historically, the topographic data have been collected exclusively using real-time kinematic Global Navigation Satellite Systems. However, on January 12, 2017,... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, Colorado Springs, El Paso County, Fountain, Fountain Creek, All tags... Pueblo, Pueblo County, channel change, flood, geomorphology, sediment transport, topograhic survey, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 1213 This metadata record describes the materials contained in stake folder 1213. Stake 1213 is located at latitude 36.43944, longitude -112.64167. This location was photographed in the following years: 1872, 1968 and 1990. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 1219 This metadata record describes the materials contained in stake folder 1219. Stake 1219 is located at latitude 36.45694, longitude -112.63889. This location was photographed in the following years: 1872 and 1990. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat date... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags 1 2 3 4 5 ... 9 »