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Filters Contacts (Less) U.S. Geological Survey U.S. Geological Survey - ScienceBase Arctic Landscape Conservation Cooperative Migratory Bird Management Alaska U.S. Fish and Wildlife Service, Alaska Region Earth Resources Observation and Science (EROS) Center U.S. Geological Survey Core Science Systems Kurtis Nelson Woods Hole Coastal and Marine Science Center Wayne E Baldwin Colin Talbert Louis A. Yost Western Alaska Landscape Conservation Cooperative Coastal and Marine Hazards and Resources Program Natural Hazards Michael Swaim LCC Network Data Steward Water Resources Ryan L Fosness Alexander R Nichols Brian E Reichert Brian Reichert David S Foster Debbie Groves GS ScienceBase U.S. Geological Survey, SOUTHWEST REGION U.S. Geological Survey, Southwest Region USGS Fort Collins Science Center Colin Talbert Charles R Worley Idaho Water Science Center Brian E Reichert William W Danforth Brian D Andrews Coastal and Marine Geology Program Seth D. Ackerman Charles J. Frost Carolyn Ruppel Taylor J Dudunake Eric Taylor Jason Chaytor Seth Ackerman Julian B. Fischer Tamatha A Patterson Eric Moore Amy Pocewicz Marc Weber Page C Valentine James R Bartolino More... View Results as: JSON ATOM CSV

Hydrogeologic Framework of the Treasure Valley and Surrounding Area, Idaho and Oregon; Well Data A three-dimensional hydrogeologic framework model (3D HFM) of the westernmost western Snake River Plain (WSRP) aquifer system was prepared to represent the subsurface distribution and thickness of four hydrogeologic units. The primary source of data for the 3D HFM was lithologic data from a total of 291 well-driller reports. These data were then processed using Rockware Rockworks17 three-dimensional modeling software. This dataset consists of five comma-delineated CSV files containing well information: location, lithology, well construction, aquifer, and comments. It is one of three related datasets. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ada County, Boise, Canyon County, Elmore County, Gem County, All tags... Geology, ID, Idaho, Malheur County, OR, Oregon, Payette County, Snake River Plain, Treasure Valley, USA, animations, environment, geoscientificInformation, geospatial datasets, groundwater, groundwater flow, hydrogeology, hydrology, location, mathematical modeling, natural resource assessment, natural resource exploration, rocks and deposits, scientific interpretation, water resource management, water resources, well drilling, Fewer tags Chirp seismic reflection data from the Edgetech 512i collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS field activity 2018-001-FA (shotpoints point shapefile, survey trackline shapefile, PNG profile images, and SEG-Y trace data). The natural resiliency of the New Jersey barrier island system, and the efficacy of management efforts to reduce vulnerability, depends on the ability of the system to recover and maintain equilibrium in response to storms and persistent coastal change. This resiliency is largely dependent on the availability of sand in the beach system. In an effort to better understand the system's sand budget and processes in which this system evolves, high-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, New Jersey was conducted from May 31 to June 10, 2018, followed by a sea floor sampling survey conducted from October 22 to 23, 2018, as part... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beach Haven, CMHRP, Coastal and Marine Hazards and Resources Program, EdgeTech, Forsythe Wildlife Refuge, All tags... Holgate, Little Egg Inlet, Long Beach Island, New Jersey, PNG, R/V Petrel, SB-512i, SEG-Y traces, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, chirp, field activity number 2018-001-FA, field activity number 2018-049-FA, geoscientificInformation, geospatial datasets, image, location, marine geology, marine geology, marine geophysics, navigational data, oceans, seismic navigation, seismic profile, seismic reflection, seismic reflection methods, shapefile, sub-bottom profiling, trackline navigation, Fewer tags Sound velocity profiles - locations, images, and text files for sound velocity profiles calculated from XBT and CTD casts conducted during USGS field activities 2017-001-FA and 2017-002 FA In spring and summer 2017, the U.S. Geological Survey’s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as the Interagency Mission for Methane Research on Seafloor Seeps and designated as field... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomac Canyon, Atlantic Ocean, CMHRP, Chincoteague Ridge, Coastal and Marine Hazards and Resources Program, All tags... DOE, DOI, Department of Energy, Department of the Interior, IMMeRSS, Interagency Mission for Methane Research on Seafloor Seeps, Keller Canyon, NOAA-OER, Norfolk Canyon, PNG, R/V Hugh R. Sharp, SSP, SVP, Seabird Electronics 911plus CTD, Sippican XBT, U.S. Geological Survey, USGS, United States of America, University of Rochester, WHCMSC, Washington Canyon, Woods Hole Coastal and Marine Science Center, field activity number 2017-001-FA, field activity number 2017-002-FA, geoscientificInformation, location, marine geophysics, navigational data, ocean sciences, oceanography, oceans, shapefile, sound speed profile, sound velocity, sound velocity profile, sound velocity profiles, Fewer tags Multibeam Echosounder, Reson T-20P tracklines, USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (Esri polyline shapefile, GCS WGS 84) High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. As the initial field program of a research cooperative between the U.S. Geological Survey, the Bureau of Ocean Energy Management, and other Federal and academic partners, the primary objective of this cruise was to assess the suitability of sea-floor mapping and shallow subsurface imaging tools in the challenging environmental conditions found across delta fronts (for example, variably distributed water column stratification and widespread biogenic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: BOEM, Bureau of Ocean Energy Management, CMGP, Coastal and Marine Geology Program, Gulf of Mexico, All tags... Marine Geology, Mississippi River Delta front, Pass a Loutre, Reson, South Pass, Southeast Louisiana, Southwest Pass, T20P, U.S. Geological Survey, USGS, WHCMSC, Woods Hole Coastal and Marine Science Center, backscatter, bathymetry, bathymetry, field activity number 2017-003-FA, geoscientificInformation, location, marine geology, marine geophysics, multibeam backscatter, multibeam bathymetry, multibeam echosounder, multibeam sonar, navigational data, oceans, sea-floor acoustic reflectivity, shapefile, trackline navigation, Fewer tags Attributed North American Bat Monitoring Program (NABat) Master Sample and Grid-Based Sampling Frame: Mexico The NABat sampling frame is a grid-based finite-area frame spanning Canada, the United States, and Mexico consisting of N total number of 10- by 10-km (100-km2) grid cell sample units for the continental United States, Canada, and Alaska and 5- by 5-km (25km2) for Hawaii and Puerto Rico. This grain size is biologically appropriate given the scale of movement of most bat species, which routinely travel many kilometers each night between roosts and foraging areas and along foraging routes. A Generalized Random-Tessellation Stratified (GRTS) Survey Design draw was added to the sample units from the raw sampling grids (https://doi.org/10.5066/P9M00P17). This dataset represents the final 2018 NABat Sampling grid with... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Canada, Hawaii, Mexico, Puerto Rico, All tags... United States, biota, ecosystem monitoring, location, Fewer tags Webinar 2016: Networked Monitoring of Salmon Habitat Temperature: Two Case Studies from Southwestern Alaska This webinar covers two linked projects to increase the amount of water temperature data for the Bristol Bay and Kodiak Archipelago regions of Alaska. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Conservation NGOs, Federal resource managers, LCC Network Science Catalog, RIVERS/STREAM HABITAT, All tags... RIVERS/STREAM HABITAT, RIVERS/STREAMS, RIVERS/STREAMS, TEMPERATURE TRENDS, TEMPERATURE TRENDS, TEMPERATURE VARIABILITY, TEMPERATURE VARIABILITY, Western Alaska Landscape Conservation Cooperative data.gov, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, environment, environment, geoscientificInformation, geoscientificInformation, inlandWaters, inlandWaters, location, location, presentation, Fewer tags Fish/Judy Creek Watershed map Map of the Fish and Judy Creek Area and location of proposed observation sites (numbered circles). Fish Creek, Judy Creek, and the Ublutuoch River are almost entirely within the Beaufort Coastal Plain Ecoregion, though a small portion of Judy Creek extends into the Brooks Foothills. Inset shows the location of the seven TEON focal watersheds. Image by Arctic LCC staff. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ATMOSPHERE, ATMOSPHERE, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, CRYOSPHERE, CRYOSPHERE, DISCHARGE/FLOW, DISCHARGE/FLOW, DRAINAGE, DRAINAGE, Federal resource managers, GEOMORPHOLOGY, GEOMORPHOLOGY, GLACIERS/ICE SHEETS, GLACIERS/ICE SHEETS, LCC Network Science Catalog, MAXIMUM/MINIMUM TEMPERATURE, MAXIMUM/MINIMUM TEMPERATURE, PERMAFROST, PERMAFROST, Policy makers & regulators, SNOW COVER, SNOW COVER, SNOW DEPTH, SNOW DEPTH, SNOW/ICE, SNOW/ICE, SOIL TEMPERATURE, SOIL TEMPERATURE, SURFACE AIR TEMPERATURE, SURFACE AIR TEMPERATURE, SURFACE WATER, SURFACE WATER, VEGETATION, VEGETATION, WATER QUALITY/WATER CHEMISTRY, WATER QUALITY/WATER CHEMISTRY, completed, location, location, map, Fewer tags Yukon North Slope Wildlife Management Plan The Yukon North Slope is an arctic “hot spot” of climate change-induced effects with profound significance for the Inuvialuit and the larger region. In 1984, the Inuvialuit entered into a land claim agreement – the Inuvialuit Final Agreement (IFA) – with the governments of Canada, Yukon and Northwest Territories. A co-management body formed to make a plan, which was developed in 2003 but never ratified and is now considered out-of-date. Round River Conservation Studies is assisting WMAC(NS) in the collection, development and synthesis of spatial data, models and analyses of cultural and ecological values of the YNS.The project is a collaboration among the NWB LCC, Round River Conservation Studies, and the Arctic... Categories: Data, Project, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, CONSERVATION, CONSERVATION, CONSERVATION, CONSERVATION, All tags... Conservation Design, Conservation NGOs, Conservation Planning, ECOLOGICAL DYNAMICS, ECOLOGICAL DYNAMICS, ECOLOGICAL DYNAMICS, ECOLOGICAL DYNAMICS, Federal resource managers, LCC Network Science Catalog, Northwest Boreal Landscape Conservation Cooperative data.gov, Policy makers & regulators, Private land owners, Project, Publication, Publication, Regional & county planners, Socio-economics/Ecosystem Services, State agencies, Traditional Ecological Knowledge, Tribes, completed, environment, environment, location, location, onGoing, society, society, Fewer tags National Park Service Thematic Burn Severity Mosaic in 2013 (ver. 8.0, August 2024) The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, Alaska, Burn severity, Burned area, CONUS, All tags... Continental U.S., Differenced normalized burn ratio, Fire location, Fire occurrence, HI, Hawaii, Landsat, Location, NPS, Normalized burn ratio, PR, Prescribed fire, Puerto Rico, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags National Park Service Thematic Burn Severity Mosaic in 2018 (ver. 8.0, August 2024) The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, Alaska, Burn severity, Burned area, CONUS, All tags... Continental U.S., Differenced normalized burn ratio, Fire location, Fire occurrence, HI, Hawaii, Landsat, Location, NPS, Normalized burn ratio, PR, Prescribed fire, Puerto Rico, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags National Park Service Thematic Burn Severity Mosaic in 1995 (ver. 8.0, August 2024) The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, Alaska, Burn severity, Burned area, CONUS, All tags... Continental U.S., Differenced normalized burn ratio, Fire location, Fire occurrence, HI, Hawaii, Landsat, Location, NPS, Normalized burn ratio, PR, Prescribed fire, Puerto Rico, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags National Park Service Thematic Burn Severity Mosaic in 1996 (ver. 8.0, August 2024) The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, Alaska, Burn severity, Burned area, CONUS, All tags... Continental U.S., Differenced normalized burn ratio, Fire location, Fire occurrence, HI, Hawaii, Landsat, Location, NPS, Normalized burn ratio, PR, Prescribed fire, Puerto Rico, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags National Park Service Thematic Burn Severity Mosaic in 2006 (ver. 8.0, August 2024) The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, Alaska, Burn severity, Burned area, CONUS, All tags... Continental U.S., Differenced normalized burn ratio, Fire location, Fire occurrence, HI, Hawaii, Landsat, Location, NPS, Normalized burn ratio, PR, Prescribed fire, Puerto Rico, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags Burned Area Reflectance Classification Thematic Burn Severity Mosaic for 2023 (ver. 6.0, January 2024) These data products are preliminary burn severity assessments derived from data obtained from suitable imagery (including Landsat TM, Landsat ETM+, Landsat OLI, Sentinel 2A, and Sentinel 2B). The pre-fire and post-fire subsets included were used to create a differenced Normalized Burn Ratio (dNBR) image. The dNBR image attempts to portray the variation of burn severity within a fire. The severity ratings are influenced by the effects to the canopy. The severity rating is based upon a composite of the severity to the understory (grass, shrub layers), midstory trees and overstory trees. Because there is often a strong correlation between canopy consumption and soil effects, this algorithm works in many cases for Burned... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BAER, Burn severity, Burned Area Emergency Response, Burned area, Differenced normalized burn ratio, All tags... Fire location, Landsat, Location, Normalized burn ratio, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags Projecting the Future Encroachment of Woody Vegetation into Grasslands of the Northern Great Plains by Simulating Climate Conditions and Possible Management Actions Maintaining the native prairie lands of the Northern Great Plains (NGP), which provide an important habitat for declining grassland species, requires anticipating the effects of increasing atmospheric carbon dioxide (CO2) concentrations and climate change on the region’s vegetation. Specifically, climate change threatens NGP grasslands by increasing the potential encroachment of native woody species into areas where they were previously only present in minor numbers. This project used a dynamic vegetation model to simulate vegetation type (grassland, shrubland, woodland, and forest) for the NGP for a range of projected future climates and relevant management scenarios. Comparing results of these simulations illustrates... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, Biology, CASC, Climate change, Completed, All tags... Conservation, Conterminous United States, Ecology, Ecosystem, Fire, Grasslands and Plains, Grasslands and Plains, Great Plains, Land, Land Management, Landscapes, Landscapes, Natural Resources, North Central, North Central CASC, Projects by Region, United States, biota, boundaries, environment, grasslands, grazing, location, woody encroachment, Fewer tags Alaska Yukon-Kuskokwim Delta Aerial Survey Combined Index Estimates 1985 to present Combined population indices of ducks and loons (YKD) and geese and swans (YKG) for the USFWS Region Migratory Bird Management Alaska Yukon-Kuskokwim Delta Aerial Survey study area in a combined csv format. The survey consists of low-level aerial observations of waterfowl on a stratified strip transect design. The resulting data frame is several indices combined over observers (or single observer in years where estimates were not combined) and calculated using a standard ratio estimator. These data are output from the R package AKaerial and are also available within that package, see https://github.com/USFWS/AKaerial. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, BIOLOGICAL CLASSIFICATION, BIOSPHERE, BIRDS, DUCKS/GEESE/SWANS, All tags... Data, Data Acquisition and Development, Datasets/Database, EARTH SCIENCE, EARTH SCIENCE, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS, ECOSYSTEMS, FRESHWATER ECOSYSTEMS, Population and Habitat Evaluation/Projection, RIVER DELTA, RIVERS/STREAM, completed, location, Fewer tags Waterfowl Breeding Population Habitat Survey Alaska Species Visibility Correction Factors data In many areas surveyed during the North American WBPHS, ground surveys are conducted in conjunction with the aerial surveys to derive annual visibility correction factors (VCFs) for the aerial survey crews, which are used during analyses to adjust for detection bias. Due to the remoteness of strata 1–12, ground surveys are not conducted there. Instead, a set of fixed VCFs by species and basic habitat type (strata 1–7 = boreal forest; strata 8–11 = tundra; stratum 12) are used. The fixed VCFs that were used through 1991 were derived from work done in WBPHS prairie strata. During the years 1985–1991, efforts were made by the FWS Division of Migratory Bird Management-Alaska Region (MBM-Alaska) to develop more appropriate... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, BIOLOGICAL CLASSIFICATION, BIRDS, CRANES AND ALLIES, DUCKS/GEESE/SWANS, All tags... Data, EARTH SCIENCE, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > LOONS, Monitoring, Population and Habitat Evaluation/Projection, completed, location, Fewer tags Waterfowl Breeding Population Habitat Survey Alaska Stratum Areas data WBPHS_Stratum_Areas.csv is a table that lists the area measurements (in square miles) for strata 1-12, as measured and adopted by survey designers in 1974. These measurements are used by MBM-AK in analyses to produce bird abundance estimates by species and stratum. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, BIOLOGICAL CLASSIFICATION, BIRDS, CRANES AND ALLIES, DUCKS/GEESE/SWANS, All tags... Data, EARTH SCIENCE, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > LOONS, Monitoring, Population and Habitat Evaluation/Projection, completed, location, Fewer tags Waterfowl Breeding Population Habitat Survey Alaska Segment Endpoints The WBPHS is conducted by flying an aircraft along a set of segment lines. (One or more contiguous segments comprise a transect.) The geographic coordinates in WBPHS_Segment_Endpoints.csv represent the beginning and ending points of the segment lines in Alaska and Old Crow Flats (Yukon Territory) strata 1-12. The point coordinates in this file have been incorporated into various products (e.g., a GPS waypoints file) to aid in survey-flight navigation. The coordinates are in decimal degrees, WGS84 datum. The set of segments contained in this file was established in 1964. In the years 1957-1963, the survey design included many, but not all, of these segments. Additional segments were flown in some or all years during... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, BIOLOGICAL CLASSIFICATION, BIRDS, CRANES AND ALLIES, DUCKS/GEESE/SWANS, All tags... Data, EARTH SCIENCE, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > LOONS, Monitoring, Population and Habitat Evaluation/Projection, biota, completed, environment, location, Fewer tags Southwest Energy Development and Drought Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and nongovernment organizations that are responsible for different types of resources within the same geographical areas. The approach used to compile this map is based on the premise that ecological regions can be identified through the analysis of patterns of biotic and abiotic phenomena, including... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Biology, Conservation, Ecology, Ecosystem, Land, All tags... Natural Resources, United States, biota, boundaries, environment, location, Fewer tags 1 2 3 4 5 ... 13 »