HW1_Q03.TIF - Hawaii I - Southeastern Hawaiian Ridge U.S. EEZ GLORIA sidescan-sonar data mosaic (3 of 29) (LCC, 50 m, WGS84)
Vydavatel U.S. Geological Survey, Department of the Interior
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Survey of the southeastern Hawaiian Ridge was the fifth major segment of the Exclusive Economic Zone (EEZ) mapping program to have been initiated. Data acquisition for this region required approximately one-half year and were acquired during eight cruises over a four year period from 1986 through 1989, skipping 1987. At the conclusion of the survey 29 mosaics of a 2 degree by 2 degree were completed for the region. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of twenty-seven digital mosaics of a 2 degree by 2 degree area and 2 mosaics of 2.25 degree by 2 degree with a 50-meter pixel resolution were completed for the region.
HW1_Q18.TIF - Hawaii I - Southeastern Hawaiian Ridge U.S. EEZ GLORIA sidescan-sonar data mosaic (18 of 29) (LCC, 50 m, WGS84)
Vydavatel U.S. Geological Survey, Department of the Interior
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Survey of the southeastern Hawaiian Ridge was the fifth major segment of the Exclusive Economic Zone (EEZ) mapping program to have been initiated. Data acquisition for this region required approximately one-half year and were acquired during eight cruises over a four year period from 1986 through 1989, skipping 1987. At the conclusion of the survey 29 mosaics of a 2 degree by 2 degree were completed for the region. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of twenty-seven digital mosaics of a 2 degree by 2 degree area and 2 mosaics of 2.25 degree by 2 degree with a 50-meter pixel resolution were completed for the region.
Vydavatel U.S. Geological Survey, Department of the Interior
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Stream Flooding Hazard Intensity Level in the coastal zone of Lanai, Hawaii
Vydavatel Federal Laboratory Consortium
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Among the many cancer research laboratories operated by NCI, the Frederick National Laboratory for Cancer Research(FNLCR) is unique in that it is a Federally Funded Research and Development Center-one of 41 such centers in the United States that operate under a broad charter to respond rapidly and efficiently to meet the research and development needs of their government sponsors. The Frederick National Lab is overseen by NCI and operated by Leidos Biomedical Research, Inc. Located on NCI's Frederick, Maryland, campus, the FNLCR combines private sector business practices with government infrastructure to conduct research in genetics, proteomics, bioinformatics, biomedical computing, animal sciences, and clinical operations. As a national resource, the FNLCR provides cancer researchers a bridge between basic research and clinical practice with support that is not readily available elsewhere. By using private sector resources to accomplish tasks that are integral to the mission and operation of NCI, the FNLCR brings together public and private partners to address significant cancer research challenges.
PR_Q04.TIF - Puerto Rico U.S. EEZ GLORIA sidescan-sonar data mosaic (4 of 9) (ACEA, 50 m, Clarke1866)
Vydavatel U.S. Geological Survey, Department of the Interior
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The Puerto Rico U.S. EEZ study area includes the seafloor between the island of Puerto Rico and the Puerto Rico Trench floor and extends west to Mona Canyon and east to the U.S. Virgin Islands. South of the islands, it covers parts of the Muertos Trough and the Venezuelan Basin. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 9 digital mosaics of approximately a 2 degree by 2 degree (or smaller) area with a 50-meter pixel resolution were completed for the Puerto Rico U.S. EEZ.
Vydavatel U.S. Geological Survey, Department of the Interior
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This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of Bolinas map area, California. The vector data file is included in "Habitat_Bolinas.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshoreBolinas/data_catalog_OffshoreBolinas.html. Using multibeam echosounder (MBES) bathymetry and backscatter data, potential marine benthic habitat maps were constructed. The habitats were based on substrate types and documented or "ground truthed" using underwater video images and seafloor samples obtained by the USGS. These maps display various habitat types that range from flat, soft, unconsolidated sediment-covered seafloor to hard, deformed (folded), or highly rugose and differentially eroded bedrock exposures. Rugged, high-relief, rocky outcrops that have been eroded to form ledges and small caves are ideal habitat for rockfish (Sebastes spp.) and other bottom fish such as lingcod (Ophiodon elongatus). Habitat map is presented in a map format generated in a GIS (ArcMap), and both digital and hard-copy versions will be produced.
Vydavatel Federal Laboratory Consortium
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Proteomics Core is the central resource for mass spectrometry based proteomics within the NHLBI. The Core staff help collaborators design proteomics experiments in a way that are compatible with mass spectrometry and to modify protocols if needed to ensure they will provide high quality data. An important aspect of the Core's mission is to teach users new methods, techniques and instruments. The Core also continually innovates on existing technologies. Our workflows for relative protein quantitation are based on DIGE, label-free and iTRAQ approaches. We can also help investigators identify and quantify protein posttranslational modifications, including phosphorylation, nitrosylation, acetylation, ubiquitination, etc. We provide training in proper sample preparation and lead the researchers through mass spectrometric analysis to data searching and interpretation. Users have access to a variety of proteomics software platforms (Mascot, Sequest, Proteome Discoverer, Scaffold, Protein Pilot) for re-searching the data or viewing the results. In addition to helping the NHLBI investigators, we develop new approaches for characterization of posttranslational modifications and absolute protein quantitation. The NHLBI Proteomics Core was a recipient of the 2012 NHLBI Orloff Award for outstanding research support. Recent studies and method development include: Acetylation on lysine (developing workflows for identification and occupancy measurements) Nitrosylation on cysteine (developing workflows for identification and occupancy measurements) Ubiquitination and SUMOylation (workflows for identification and quantitation) Development of 'mito-panel' - using targeted analysis on Velos to follow specific mitochondrial proteins Depletion of the most abundant serum proteins to study the protein differences in patients' samples Absolute protein quantitation using SRM on Velos instruments Development of iTRAQ quantitation software (Quari) and measurement of and correction for isolation purity in iTRAQ Separation of peptides and phosphopeptide enrichment using IEF or OFF-Gel System Instruments Mass spectrometers Thermo Orbitrap Velos Elite 1 Thermo Orbitrap Velos Elite 2 Thermo Orbitrap Excel with ETD ABI 5800 MALDI-TOF/TOF ABI 4000 Qtrap 2D-gel setup Typhoon Scanner Ettan Spot Handling Workstation Ettan Spot Picker Perkin Elmer Liquid Handling Station Progenesis software programs Supporting instruments Three off-line Agilent HPLC for SCX/HILIC OFFGEL Instrument for IEF separation of peptides and proteins GelFree Instrument for in-solution separation of proteins Data analysis Workstations with Proteome Discoverer, Scaffold, Protein Pilot, Mascot Daemon, ProteoIQ
Vydavatel Federal Laboratory Consortium
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The Molecular Genomics Laboratory (MGL) at the Eunice Kennedy Shriver National Institutes of Child Health and Human Development provides DNA and RNA sequencing services for genomic and genetic research. Our services include full gene analysis by DNA sequencing (whole exome, targeted exome and gene-specific sequencing), as well as whole transcriptome sequencing (RNA-Seq), microRNA sequencing, microbiome sequencing, bisulfite sequencing (DNA methylome), ChIP-Seq and ribosomal profiling. The MGL provides significant primary data processing and downstream bioinformatic support. We can assist in designing experiments or sequencing strategies (for example, optimization of targeted exome design). Our mission is to offer accurate and innovative tools to facilitate research into the diagnosis, counseling and treatment of hereditary disorders.
Vydavatel U.S. Geological Survey, Department of the Interior
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In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within California’s State Waters. The program supports a large number of coastal-zone- and ocean-management issues, including the California Marine Life Protection Act (MLPA) (California Department of Fish and Wildlife, 2008), which requires information about the distribution of ecosystems as part of the design and proposal process for the establishment of Marine Protected Areas. A focus of CSMP is to map California’s State Waters with consistent methods at a consistent scale. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data (the undersea equivalent of satellite remote-sensing data in terrestrial mapping), acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. It is emphasized that the more interpretive habitat and geology data rely on the integration of multiple, new high-resolution datasets and that mapping at small scales would not be possible without such data. This approach and CSMP planning is based in part on recommendations of the Marine Mapping Planning Workshop (Kvitek and others, 2006), attended by coastal and marine managers and scientists from around the state. That workshop established geographic priorities for a coastal mapping project and identified the need for coverage of “lands” from the shore strand line (defined as Mean Higher High Water; MHHW) out to the 3-nautical-mile (5.6-km) limit of California’s State Waters. Unfortunately, surveying the zone from MHHW out to 10-m water depth is not consistently possible using ship-based surveying methods, owing to sea state (for example, waves, wind, or currents), kelp coverage, and shallow rock outcrops. Accordingly, some of the data presented in this series commonly do not cover the zone from the shore out to 10-m depth. This data is part of a series of online U.S. Geological Survey (USGS) publications, each of which includes several map sheets, some explanatory text, and a descriptive pamphlet. Each map sheet is published as a PDF file. Geographic information system (GIS) files that contain both ESRI ArcGIS raster grids (for example, bathymetry, seafloor character) and geotiffs (for example, shaded relief) are also included for each publication. For those who do not own the full suite of ESRI GIS and mapping software, the data can be read using ESRI ArcReader, a free viewer that is available at http://www.esri.com/software/arcgis/arcreader/index.html (last accessed September 20, 2013). The California Seafloor Mapping Program is a collaborative venture between numerous different federal and state agencies, academia, and the private sector. CSMP partners include the California Coastal Conservancy, the California Ocean Protection Council, the California Department of Fish and Wildlife, the California Geological Survey, California State University at Monterey Bay’s Seafloor Mapping Lab, Moss Landing Marine Laboratories Center for Habitat Studies, Fugro Pelagos, Pacific Gas and Electric Company, National Oceanic and Atmospheric Administration (NOAA, including National Ocean Service–Office of Coast Surveys, National Marine Sanctuaries, and National Marine Fisheries Service), U.S. Army Corps of Engineers, the Bureau of Ocean Energy Management, the National Park Service, and the U.S. Geological Survey. These web services for the Offshore of Refugio Beach map area includes data layers that are associated to GIS and map sheets available from the USGS CSMP web page at https://walrus.wr.usgs.gov/mapping/csmp/index.html. Each published CSMP map area includes a data catalog of geographic information system (GIS) files; map sheets that contain explanatory text; and an associated descriptive pamphlet. This web service represents the available data layers for this map area. Data was combined from different sonar surveys to generate a comprehensive high-resolution bathymetry and acoustic-backscatter coverage of the map area. These data reveal a range of physiographic including exposed bedrock outcrops, large fields of sand waves, as well as many human impacts on the seafloor. To validate geological and biological interpretations of the sonar data, the U.S. Geological Survey towed a camera sled over specific offshore locations, collecting both video and photographic imagery; these “ground-truth” surveying data are available from the CSMP Video and Photograph Portal at http://dx.doi.org/10.5066/F7J1015K. The “seafloor character” data layer shows classifications of the seafloor on the basis of depth, slope, rugosity (ruggedness), and backscatter intensity and which is further informed by the ground-truth-survey imagery. The “potential habitats” polygons are delineated on the basis of substrate type, geomorphology, seafloor process, or other attributes that may provide a habitat for a specific species or assemblage of organisms. Representative seismic-reflection profile data from the map area is also include and provides information on the subsurface stratigraphy and structure of the map area. The distribution and thickness of young sediment (deposited over the past about 21,000 years, during the most recent sea-level rise) is interpreted on the basis of the seismic-reflection data. The geologic polygons merge onshore geologic mapping (compiled from existing maps by the California Geological Survey) and new offshore geologic mapping that is based on integration of high-resolution bathymetry and backscatter imagery seafloor-sediment and rock samplesdigital camera and video imagery, and high-resolution seismic-reflection profiles. The information provided by the map sheets, pamphlet, and data catalog has a broad range of applications. High-resolution bathymetry, acoustic backscatter, ground-truth-surveying imagery, and habitat mapping all contribute to habitat characterization and ecosystem-based management by providing essential data for delineation of marine protected areas and ecosystem restoration. Many of the maps provide high-resolution baselines that will be critical for monitoring environmental change associated with climate change, coastal development, or other forcings. High-resolution bathymetry is a critical component for modeling coastal flooding caused by storms and tsunamis, as well as inundation associated with longer term sea-level rise. Seismic-reflection and bathymetric data help characterize earthquake and tsunami sources, critical for natural-hazard assessments of coastal zones. Information on sediment distribution and thickness is essential to the understanding of local and regional sediment transport, as well as the development of regional sediment-management plans. In addition, siting of any new offshore infrastructure (for example, pipelines, cables, or renewable-energy facilities) will depend on high-resolution mapping. Finally, this mapping will both stimulate and enable new scientific research and also raise public awareness of, and education about, coastal environments and issues. Web services were created using an ArcGIS service definition file. The ArcGIS REST service and OGC WMS service include all Offshore of Refugio Beach map area data layers. Data layers are symbolized as shown on the associated map sheets.
Vydavatel U.S. Geological Survey, Department of the Interior
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Coastal Slope along the coastal zone of Oahu, Hawaii
Vydavatel U.S. Geological Survey, Department of the Interior
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There are critical needs for a nationwide compilation of reliable shoreline data. To meet these needs, the USGS has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data. Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002. Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies. Details regarding source are provided in the 'Data Quality Information' section of this metadata report. Shoreline vectors derived from historic sources (first three time periods) represent the high water line at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line.
GAK_Q55.TIF - Gulf of Alaska U.S. EEZ GLORIA sidescan-sonar data mosaic (25 of 30) (LCC, 50 m, WGS84)
Vydavatel U.S. Geological Survey, Department of the Interior
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GLORIA data for the Gulf of Alaska Exclusive Economic Zone (EEZ) were acquired during five cruises over a four year period. The first cruise conducted in 1986 (F-1-86-GA) surveyed an area of the north-central mosaic area and covered an area of approximately 40,000 square kilometers (sq km). The second two cruises (F-8-88-AA, F-9-88-WG) were conducted in 1988. One of the 1988 cruises (F-8-88-AA) focused on a survey of the Aleutian Arc. The eastern most portion of that survey extended outside of the Aleutian Arc survey area and covered an area of approximately 52,000 square kilometers (sq km) of seafloor on the western edge of the Gulf of Alaska. The final two cruises (F-6-89-GA, F-7-89-EG) were completed in 1989. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. Thirty digital mosaics with a 50-meter pixel resolution were completed for the region.
Vydavatel U.S. Geological Survey, Department of the Interior
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A first-surface topography digital elevation model (DEM) mosaic for the Big Sandy Creek Unit of Big Thicket National Preserve in Texas, was produced from remotely sensed, geographically referenced elevation measurements collected on January 19, 21, 22, and 30, 2014 by the U.S. Geological Survey, in cooperation with the National Park Service - Gulf Coast Network. Elevation measurements were collected over the area using the second-generation Experimental Advanced Airborne Research Lidar, a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's surface through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between emission of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over the target area at approximately 55 meters per second at an elevation of approximately 300 meters, resulting in a laser swath of approximately 240 meters with an average point spacing of 0.5-1.6 meters. A peak sampling rate of 15-30 kilohertz results in an extremely dense spatial elevation dataset. More than 100 kilometers of coastline can be surveyed easily within a 3- to 4-hour mission. When resultant elevation maps for an area are analyzed, they provide a useful tool to make management decisions regarding land development.
HW2_Q46.TIF - Hawaii II - Central Hawaii U.S. EEZ GLORIA sidescan-sonar data mosaic (17 of 24) (LCC, 50 m, WGS84)
Vydavatel U.S. Geological Survey, Department of the Interior
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In 1984, the U.S. Geological Survey (USGS), Office of Marine Geology, launched a program using the Geological LOng-Range Inclined Asdic (GLORIA) sidescan-sonar system to study the entire U.S. Exclusive Economic Zone (EEZ). From 1988 through 1991, the USGS and IOS (Institute of Oceanographic Sciences, U.K.) scientists conducted several surveys within the U.S. EEZ off Hawaii. Nine surveys during that time period focused on the central Hawaii region. The results of these surveys were 24 digital mosaics of approximately a 2 degree by 2 degree area with a 50-meter pixel resolution.
COW_Q19.TIF - U.S. Pacific West Coast EEZ GLORIA sidescan-sonar data mosaic (19 of 36) (TM, 50 m, NAD27)
Vydavatel U.S. Geological Survey, Department of the Interior
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In March 1983, President Ronald Reagan signed a proclamation establishing an Exclusive Economic Zone (EEZ) of the United States extending its territory 200 nautical miles from the coasts of the United States, Puerto Rico, the Northern Mariana Islands, and the U.S. territories and possessions. In 1984, the U.S. Geological Survey (USGS), Office of Marine Geology began a program to map these areas of the EEZ. The U.S. Pacific Coast was the first EEZ region to be mapped and launched GLORIA (Geological LOng-Range Inclined Asdic) mapping program. The area covered by this survey extended from the Mexican to the Canadian borders and from the continental shelf edge, at about the 400-meter bathymetric contour, to 200 nautical miles from the coast. Survey of the U.S. Pacific West Coast EEZ was completed in four consecutive cruises conducted from late April through mid-August 1984. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 36 digital mosaics of an approximate 2 degree by 2 degree (or smaller) area with a 50-meter pixel resolution were completed for the region.
EAARL-B Topography-Big Thicket National Preserve: Beaumont and Lower Neches River Units, Texas, 2014
Vydavatel U.S. Geological Survey, Department of the Interior
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A bare-earth topography Digital Elevation Model (DEM) mosaic for the Beaumont and Lower Neches River Units of Big Thicket National Preserve in Texas, was produced from remotely sensed, geographically referenced elevation measurements collected on January 11, 15, 17, 18, 19, 21, 22, 23, 25, 26, 27, and 29, 2014 by the U.S. Geological Survey, in cooperation with the National Park Service - Gulf Coast Network. Elevation measurements were collected over the area using the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B), a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's surface through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between emission of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over the target area at approximately 55 meters per second at an elevation of approximately 300 meters, resulting in a laser swath of approximately 240 meters with an average point spacing of 0.5-1.6 meters. A peak sampling rate of 15-30 kilohertz results in an extremely dense spatial elevation dataset. More than 100 kilometers of coastline can be surveyed easily within a 3- to 4-hour mission. When resultant elevation maps for an area are analyzed, they provide a useful tool to make management decisions regarding land development.
MS_TRANSECTS_LT - Long-Term Shoreline Change Rates for Mississippi Generated at a 50m Transect Spacing, 1850-2001
Vydavatel U.S. Geological Survey, Department of the Interior
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Rates of long-term and short-term shoreline change were generated in a GIS with the Digital Shoreline Analysis System (DSAS) version 2.0, an ArcView extension developed by the U.S. Geological Survey (USGS) in cooperation with TPMC Environmental Services. The extension is designed to efficiently lead a user through the major steps of shoreline change analysis. This extension to ArcView contains three main components that define a baseline, generate orthogonal transects at a user-defined separation along the coast, and calculate rates of change (linear regression, endpoint rate, average of rates, average of endpoints, jackknife).
Vydavatel Federal Laboratory Consortium
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The Fairbanks Permafrost Experiment Station (FPES), part of ERDC'e s Cold Regions Research & Engineering Lab (CRREL), gives researchers a window into cold regions effects on construction and how altering the environment can affect permafrost. FPES allows researchers to create and conduct a variety of scientific and engineering experiments on an ice-rich permafrost site typical of much of Alaska. Improving the Foundations of Construction Located in Fairbanks, Alaska, FPES serves as a test location to allow the design and development of new construction techniques for cold climates. Results can provide guidance on how to best construct and maintain facilities in those environments to prevent damage to roads, buildings, and airfields. The ice-rich permafrost is near 0°C, providing an ideal site to experiment in "worst-case" environments, such as the impact of frost heaving on piles and minimizing permafrost degradation in foundations of roads and buildings. A Long-Term Research Site Scientists and researchers have been conducting tests at FPES since 1945. Some of the historical tests are still referenced today, more than 65 years later. Access to this data is vital in studying the long-term impact of activity in a permafrost environment. The Linnell Plots, created at FPES in 1946, are a prime example of long-term research being done at the site. Three identical plots (each 3,721 square meters) were laid out. One plot was left undisturbed. A second was cleared of trees, but their roots and the organic material was left. The third was stripped of all vegetation and surface organic material. The findings after 25 years indicated that complete stripping led to significant permafrost degradation to 22 feet (6.7 meters) below the surface, while partial clearing also led to significant degradation to a smaller degree of 15 feet (4.7 meters) below the surface. In a recent study, the partially cleared plot has grown back its vegetation; and the degradation has stabilized, while the stripped site has not grown back its original vegetation and has continued to degrade to 32 feet (9.8 meters). This research can offer insights on a wide range of topics, such as how forests might recover from wildfire or what types of soil and climate conditions are most likely to cause damage to buildings and other structures. Examples Historically, engineering research has been the main focus at the site, including road studies using various insulation, construction material, and surface color treatments. building foundation experiments. frost heave studies on piles. More recently, a manipulative ecosystem experiment has been installed to determine if the prototype system can be used to increase the temperature of permafrost soils in arctic and sub-arctic climates. Furthermore, a barrier made of active thermosyphons has been installed to determine the time it takes to completely freeze the ground and to investigate how this method can be used for containment of contaminants in both cold and temperate climates. Specifications Located just outside of Fairbanks, Alaska, on Farmers Loop Road. 135 acres (54 hectares) with road and electricity access. Subarctic taiga forest with black and white spruce. Wetland soils underlain by thick (> 30m) ice-rich permafrost. One of seven National Geotechnical Experimental sites. One of 130 Circumpolar Active Layer Monitoring sites worldwide.
HW1_Q25.TIF - Hawaii I - Southeastern Hawaiian Ridge U.S. EEZ GLORIA sidescan-sonar data mosaic (25 of 29) (LCC, 50 m, WGS84)
Vydavatel U.S. Geological Survey, Department of the Interior
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Survey of the southeastern Hawaiian Ridge was the fifth major segment of the Exclusive Economic Zone (EEZ) mapping program to have been initiated. Data acquisition for this region required approximately one-half year and were acquired during eight cruises over a four year period from 1986 through 1989, skipping 1987. At the conclusion of the survey 29 mosaics of a 2 degree by 2 degree were completed for the region. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of twenty-seven digital mosaics of a 2 degree by 2 degree area and 2 mosaics of 2.25 degree by 2 degree with a 50-meter pixel resolution were completed for the region.
Vydavatel U.S. Geological Survey, Department of the Interior
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Rates of long-term and short-term shoreline change were generated in a GIS with the Digital Shoreline Analysis System (DSAS) version 2.0, an ArcView extension developed by the U.S. Geological Survey (USGS) in cooperation with TPMC Environmental Services. The extension is designed to efficiently lead a user through the major steps of shoreline change analysis. This extension to ArcView contains three main components that define a baseline, generate orthogonal transects at a user-defined separation along the coast, and calculate rates of change (linear regression, endpoint rate, average of rates, average of endpoints, jackknife).
Vydavatel U.S. Geological Survey, Department of the Interior
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This part of DS 781 presents data for faults for the geologic and geomorphic map of the Offshore of Pacifica map area, California. The vector data file is included in "Faults_OffshorePacifica.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshorePacifica/data_catalog_OffshorePacifica.html. The Offshore of Pacifica map area straddles the right-lateral transform boundary between the North American and Pacific plates and is cut by several active faults that cumulatively form a distributed shear zone, including the San Andreas Fault, the eastern strand of the San Gregorio Fault, the Golden Gate Fault, and the Potato Patch Fault (sheets 8, 9; Bruns and others, 2002; Ryan and others, 2008). These faults are covered by Holocene sediments (mostly units Qms, Qmsb, Qmst) with no seafloor expression, and are mapped using seismic-reflection data (sheet 8). The San Andreas Fault is the primary plate-boundary structure and extends northwest across the map area; it intersects the shoreline 10 km north of the map area at Pacifica Lagoon, and 3 km south of the map area at Mussel Rock. This section of the San Andreas Fault has an estimated slip rate of 17 to 24 mm/yr (U.S. Geological Survey, 2010), and the devastating Great 1906 California earthquake (M 7.8) is thought to have nucleated on the San Andreas a few kilometers offshore of San Francisco within the map area (sheet 9; Bolt, 1968; Lomax, 2005). The San Andreas Fault forms the boundary between two distinct basement terranes, Upper Jurassic to Lower Cretaceous rocks of the Franciscan Complex to the east, and Late Cretaceous granitic and older metamorphic rocks of the Salinian block to the west. Franciscan Complex rocks (unit KJf, undivided) form seafloor outcrops at and north of Point Lobos adjacent to onland exposures. The Franciscan is divided into 13 different units for the onshore portion of this geologic map based on different lithologies and ages, but the unit cannot be similarly divided in the offshore because of a lack of direct observation and (or) sampling. Faults were primarily mapped by interpretation of seismic reflection profile data (see S-15-10-NC and F-2-07-NC). The seismic reflection profiles were collected between 2007 and 2010. References Cited Bolt, B.A., 1968, The focus of the 1906 California earthquake: Bulletin of the Seismological Society of America, v. 58, p. 457–471. Bruns, T.R., Cooper, A.K., Carlson, P.R., and McCulloch, D.S., 2002, Structure of the submerged San Andreas and San Gregorio fault zones in the Gulf of Farallones as inferred from high-resolution seismic-reflection data, in Parsons, T. (ed.), Crustal structure of the coastal and marine San Francisco Bay region, California: U.S. Geological Survey Professional Paper 1658, p. 77–117. Lomax, A., 2005, A reanalysis of the hypocentral location and related observations for the Great 1906 California earthquake: Bulletin of the Seismological Society of America, v. 95, p. 861–877. Ryan, H.F., Parsons, T., and Sliter, R.W., 2008. Vertical tectonic deformation associated with the San Andreas fault zone offshore of San Francisco, California. Tectonophysics, 429 (1-2), p. 209–224. U.S. Geological Survey and California Geological Survey, 2010, Quaternary fault and fold database for the United States, accessed April 5, 2012, from USGS website: http://earthquake.usgs.gov/hazards/qfaults/.
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Vydavatel Federal Laboratory Consortium
Datum vydání před téměř 10 roky
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Popis
This climate controlled facility is used to evaluate air stores and equipment to determine ejection velocities, store pitch rates, and arming wire and device system function and reliability
Vydavatel Federal Laboratory Consortium
Datum vydání před téměř 10 roky
Shrnutí
Popis
The Laser Threat Simulator is an FAA accredited single engine flight simulator which has been modified to incorporate red and green lasers to conduct human use research on pilot performance while being exposed to lasers. The simulator includes a fully functional, two-person, single engine aircraft cockpit and panoramic projection.
Vydavatel Federal Laboratory Consortium
Datum vydání před téměř 10 roky
Shrnutí
Popis
The High Temperature Materials Lab provides the Navy and industry with affordable high temperature materials for advanced propulsion systems. Asset List: Arc Melter & Single Crystal Processing Facility Melting temperature range 500 - 4000°C Vacuum or Argon atmosphere environment High Temperature Heat Treatment Furnace Ultra-High Temperature Atmosphere Furnace Ultra-High Temperature Cyclic Oxidation Furnace High Temperature Stress Rupture Test Facility