AndreaBozzo/ceres-open-data-index huggingface dataset:
Ground conductivity measurements at selected National Wildlife Refuges: Anderson, Montana, 2017

Shallow subsurface electrical conductivity was mapped at Anderson National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 25 line-kilometers (km) of data were acquired over an area of approximately 1 square-kilometer. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey path; data were not decoupled from infrastructure noise sources (powerlines, pipelines, fences, etc.) or corrected for sensor pitch or roll. This data release contains raw and processed electromagnetic data. Digital data are described by the data dictionaries. Additional details regarding the processing steps are described in the metadata.

Tags: anderson, electromagnetic-surveying, electromagnetics, environment, geology-geophysics-and-geochemistry-science-center, geophysics, geoscientificinformation, gggsc, groundwater, hydrogeology, montana, national-wildlife-refuge, norock, northern-rocky-mountain-science-center, prairie-pothole-region, resistivity, salinity, science-team-about-energy-and-plains-and-potholes-environments, sheridan-county, steppe, usgs-5e751830e4b01d50926e627a, water-resources, williston-basin
Organization: Department of the Interior
Data for assessing the status of resident fish communities in the Eighteenmile Creek Area of Concern, New York

The dataset is composed of two data tables containing information from boat electrofishing surveys of two tributaries to Lake Ontario, Eighteenmile Creek and Oak Orchard Creek during June 2019. The first data table contains fish collection information and the second data table contains information on the sampled reaches.

Tags: eighteenmile-creek, fish, freshwater-ecosystems, inland-fishery-resources, lake-ontario, new-york, niagara-county, oak-orchard-creek, orleans-county, population-and-community-ecology, usgs-5df2821ce4b02caea0f95a88
Organization: Department of the Interior
DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Contours for thickness of the upper confining unit of the Floridan aquifer system aquifer

Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system 
were developed to define an updated hydrogeologic framework as part of the U.S. Geological 
Survey Groundwater Resources Program. This feature class contains contour lines generated 
from the thickness of the upper confining unit (UCU) raster.

Tags: alabama, conditions, confined, contour, environment, florida, floridan-aquifer-system, geology, georgia, geoscientificinformation, hydrogeology, inlandwaters, regional-groundwater-availability-study, south-carolina, stratigraphy, thickness, ucu, unconfined, united-states-geological-survey, upper-confining-unit, usgs, usgs-cafd8754-7f50-4169-a765-14de834e9d7e
Organization: Department of the Interior
Arizona Pronghorn Big Lake Routes

The Big Lake pronghorn herd resides in the White Mountains of eastern Arizona within Game Management Unit 1. Mid-March, the Big Lake pronghorn migrate, crossing the Little Colorado River approximately four miles north of River Reservoir, to their high-elevation summer range. The summer range consists primarily of high-elevation grasslands and large alpine meadows near Big Lake. Some individuals continue several miles farther south to summer near Middle Mountain. Fall migration occurs in early to mid-October, when the herd moves north to low-elevation grassland habitats west of Eagar, Arizona. The primary threat to this migration corridor is State Route 260, which experiences high traffic volume and requires crossing for pronghorn to access seasonal ranges. 
These mapping layers show the location of the migration routes for pronghorn (Antilocapra americana) in the Big Lake population in Arizona. They were developed from 22 migration sequences collected from a sample size of 8 animals comprising GPS locations collected every 2-4 hours.

Tags: animal-behavior, arizona, biota, eagar, migration-organisms, migration-route, migratory-species, springerville, united-states, usgs-63650b69d34ebe442507ce51
Organization: Department of the Interior
Tree-Ring Data Collected in 2017 and 2018 From Cottonwood Trees Along the Wind River in Wind River Indian Reservation, Wyoming

This dataset contains tree-ring data from plains cottonwood (Populus deltoides subsp. monilifera), narrowleaf cottonwood (Populus angustifolia) and their hybrids collected from floodplains within the Wind River Indian Reservation, Wyoming in 2017 and 2018. Samples were collected from trees at three sites: the Wind River upstream of Boysen Reservoir (latitude 43.127 N, longitude -108.232 W), the Wind River downstream of Diversion Dam (latitude 43.219 N, longitude -108.940 W) and Owl Creek near Arapaho Ranch, latitude 43.725 N, longitude -108.570 W. There are 3 files. Cottonwood_Wind_Tree_Data.csv contains descriptive information about each of the sampled trees, Cottonwood_Wind_Ring_Widths contains the tree-ring widths in Tucson format, and Cottonwod_Wind_READ_Me.txt duplicates some of the metadata in this metadata file in a format that is easy to read.

Tags: biota, droughts, environment, inlandwaters, streamflow, tree-ring-analysis, usgs-5e1cfaa0e4b0ecf25c5f0cd9, usgs-ema-low-mr-riparian-wetland, usgs-ema-low-ss-ecological-flows-watersmart, wind-river, wyoming
Organization: Department of the Interior
Great Lakes Restoration Initiative's Terrestrial Habitats &amp; Connectivity Work Group's Pilot Area's Pre-Fiscal Year 2021 Open Habitat Connectivity

This dataset is the first installment of a yearly connectivity update for open habitat within the Great Lakes Restoration Initiative's (GLRI) Terrestrial Habitats &amp; Connectivity (TH&amp;C) work group's Pilot Area. The Pilot Area is a region of the northern Great Lakes Basin between Ashland, WI and the Keweenaw Peninsula and is bounded by Lake Superior in the north and the basin boundary in the south, including a 70 km buffer. Each year the TH&amp;C selects project proposals for funding within the pilot area. These proposals involve either restoration, research, or land acquisition aimed at improving or increasing connectivity in this area. The intended purpose of each year’s update is to understand the effects of funded projects on the ground work and help inform the location and purpose of future projects proposals. These pre-fiscal year 2021 open connectivity maps serve as a baseline for comparison from each future fiscal year through FY25.  
To create these connectivity maps, we used the GAP/Landfire landcover dataset and identified all open landcover grid cells. Open habitat was assigned a low movement resistance; land cover categories were assigned higher movement resistance values the more they deviated from open habitat characteristics. High intensity development was assigned the highest resistance as it was least similar to open habitat. This analysis produced two connectivity maps: a cumulative current map and a normalized current map. The cumulative current map shows where potential movement pathways between open patches are located within the pilot area, while the normalized current map shows where obstructed movement, diffuse movement, and channelized open habitat movement occurs within the pilot area.

Tags: biota, connectivity, dispersal-organisms, environment, habitat-fragmentation, imagerybasemapsearthcover, open-habitat, structure, usgs-64ef9e77d34e4b6d8ab73150
Organization: Department of the Interior
An Unvegetated to Vegetated Ratio (UVVR) for coastal wetlands of the Atlantic Coast - 2010

Prior research has shown that sediment budgets, and therefore stability, of microtidal marsh complexes scale with areal unvegetated to vegetated marsh ratios (UVVR) suggesting these metrics are broadly applicable indicators of microtidal marsh vulnerability. This effort has developed the UVVR metric using readily available satellite imagery for the coastal areas of the contiguous United States (CONUS). These datasets provide annual averages of the 1) unvegetated fraction, 2) vegetated fraction, 3) water fraction and 4) an unvegetated to vegetated ratio (UVVR) at 30-meter resolution over the coastal areas of the contiguous United States for the year 2010. Additionally, multi-year average values of vegetated ratio, its standard deviation and a UVVR based on the annually-averaged vegetated ratio are provided for the coastal wetlands of the contiguous United States.

Tags: atlantic-coast, coastal-wetlands, connecticut, conterminous-united-states, delaware, florida, fractional-cover, georgia, maine, maryland, massachusetts, new-hampshire, new-jersey, new-york, north-carolina, rhode-island, south-carolina, unvegetated, unvegetated-to-vegetated-ratio, usgs-66e1ceb9d34ecba8b86777e1, uvvr, vegetation, virginia, wetland-change, wetland-gain, wetland-loss, wetlands
Organization: Department of the Interior
GIS Shapefile of Irrigated Agricultural Acreage within the Northwest Florida Water Management District

A shapefile of the extent of irrigated agricultural fields which includes an attribute table of the irrigated acreage for the period between January and December 2021 was compiled for Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf, Holmes, Jackson, Leon, Liberty, Okaloosa, Santa Rosa, Wakulla, Walton, and Washington Counties, Florida. These counties are fully within the Northwest Florida Water Management District boundaries. Attributes for each polygon that represents a field include a general or specific crop type, irrigation system, and primary water source for irrigation.

Tags: boundaries, crop-type, environment, farming, florida-department-of-agriculture-and-consumer-service, groundwater, irrigation-type, land-use, land-use-classification-codes, northwest-florida-water-management-district, orthoimagery, surface-water, usgs-62ffa686d34e37cba73e1e76
Organization: Department of the Interior
SOCAL_1971_1976 - Vectorized Shoreline of Southern California Derived from 1971-1976 Source Data

There are critical needs for a nationwide compilation of reliable shoreline data.  To meet these needs, the U.S. Geological Survey (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.

Tags: baseline, beach-erosion, beach-nourishment, california, cmgp, coastal-and-marine-geology-program, coastal-processes, coastal-survey-map, continental-island-shore-complex, effects-of-coastal-change, elevation, endpoint-rate, erosion, esri-polyline-shapefile, historic-shoreline, lidar, linear-regression-rate, oceans, shoreline, shoreline-accretion, shoreline-change-rate, shoreline-erosion, southern-california-bight-ecoregion, t-sheet, tp-sheet, u-s-geological-survey, united-states, usgs, usgs-75648ab0-9192-4d1a-94e3-ab04f80a1907
Organization: Department of the Interior
Wind rose plots for the volcano: 311240  Cleveland

This zip folder contains ASCII text files of vectors at the specified volcano at 
12-hour intervals, 
from January 1, 1990 through December 28, 2009.  
The wind vectors are divided into five files, names by their elevation range above 
sea level in the atmosphere: 00-05km.txt; 05-11km.txt; 11-16km.txt; 16-24km.txt; 
and 24-30km.txt. 
The zip folder also contains a subfolder "figures", with Wind rose plots of wind 
direction and speed over 
this time period.  The plots are by season, and by elevation, given a total of 20 
plots (4 seasons, 5 
elevation ranges).  A summary plot is also included which gives the year-round 
wind pattern at the volcano, 
at 0-5 km elevation.  Plots are in both jpg and pdf format.

Tags: meteorology, usgs-58d01550e4b0236b68f52f45, volcanic-ash, volcanic-eruption-forecasting, wind
Organization: Department of the Interior
USGS Lake Erie East Harbor bottom trawl data series, 1961-2011

The USGS Lake Erie Biological Station’s East Harbor sampling program began in 1961 with the commissioning of the research vessel Musky II. It is the longest known continuous trawl survey in Lake Erie.  In addition to spanning over 50 years, the data series is unique for three prominent design elements: 1) sampling was conducted at three depth strata; 2) replicate trawl samples were collected at each depth stratum; and 3) sampling was conducted during both day and night. Unlike other trawl series collected in Lake Erie, and throughout the Great Lakes, the East Harbor program is the only one to combine these sampling practices in a single survey.  
In 2012, the original vessel used since the inception of the East Harbor program, the research vessel Musky II, was retired and replaced with a larger research vessel, Muskie. The change in vessel necessitated change in the trawl net and all of the rigging and hardware needed to tow it (LEBS, 2013). This effectively ended the time series of data, which were collected with the exact same vessel and sampling gear for 51 years. This historical data set has proven valuable for testing hypotheses about long-term ecological change and the impacts of non-native species invasions in the Great Lakes.  Further, at various times through history it provided accurate predictions of recruitment for species, such as Yellow Perch, that support some of the most valuable fisheries in the Great Lakes. For future scientific endeavors, and to ensure this work is available to the public, we present here the entire data set from 1961 through 2011.

Tags: biota, cedar-portage, field-sampling, fishery-resources, lake-erie, population-and-community-ecology, usgs-57cedfa0e4b0f2f0cec5e5b5
Organization: Department of the Interior
6-m resolution gray-scale image of shaded-relief multibeam bathymetry in western Massachusetts Bay map Quadrangle 1 (Q1_SRELIEF.TIF)

The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts.  The mapping was carried out using a Simrad Subsea EM 1000 Multibeam Echo Sounder on the Frederick G. Creed on four cruises conducted between 1994 and 1998.  The mapping was conducted in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and with support from the Canadian Hydrographic Service and the University of New Brunswick.
The long-term goal of this mapping effort is to produce high-resolution geologic maps and a Geographic Information System (GIS) project that presents images and grids of bathymetry, shaded relief bathymetry, and backscatter intensity data from these surveys that will serve the needs of research, management and the public.

Tags: 6-m-resolution, bathymetry, boston, cmgp, coastal-and-marine-geology-program, computational-methods, elevation, em-1000, frederick-g-creed, geospatial-datasets, geotiff, gulf-of-maine, image, imagerybasemapsearthcover, marine-geophysics, massachusetts, massachusetts-bay, multibeam, multibeam-sonar, mwra, mwra-ocean-outfall, north-atlantic-ocean, oceans, sea-floor, sea-floor-characteristics, sea-floor-mapping, shaded-relief-bathymetry, simrad, stellwagen-basin, u-s-geological-survey, united-states, usgs, usgs-337c523e-01be-4628-9a0d-e2d6841b37a6, usgs-map-i-2731, western-massachusetts-bay, western-massachusetts-bay-map-quadrangle-1, whsc, woods-hole-science-center
Organization: Department of the Interior
Burmese python environmental DNA data, and associated attributes, collected from ARM Loxahatchee NWR and surrounding areas, from 2014-2016

Environmental DNA (eDNA) detection of invasive species can be used to delimit occupied ranges and estimate probabilities to inform management decisions. Environmental DNA is shed into the environment through skin cells and bodily fluids and can be detected in water samples collected from lakes, rivers, and swamps. In south Florida, invasive Burmese pythons occupy much of the Greater Everglades in mostly inaccessible habitat and are credited with causing severe declines of native species’ populations.  Detection of Burmese pythons by traditional methods, such as trapping and visual searching, have been largely ineffective, making eDNA a superior method for differentiating invaded habitat. We adapted a quantitative PCR eDNA assay for droplet digital PCR, a state-of-the-art method that improves precision and accuracy. From August 2014 to October 2016, locations in and around Arthur R. Marshall Loxahatchee National Wildlife Refuge in southeast Florida were surveyed for Burmese python eDNA. The Refuge is maintained to provide water storage and is considered one of the last remnants of the northern Everglades wetlands. Positive eDNA detections were made at each of the five sampling events, assessing a total of 399 samples, with moderate occurrence (ψ=58-91%) and detection (p=40-70%) probabilities, potentially reduced by high PCR inhibition-levels. The high occurrence rates and geographic distribution of the positive samples within the Refuge suggests a steady release of python eDNA from a resident Burmese python population and reduces support for primarily transport of eDNA through boats or flowing water from the north. The first confirmed sighting of a Burmese python in the Refuge occurred in September 2016, after eDNA testing had indicated the presence of pythons. An established population is not expected this far north, however, the detections likely indicate northern range limit of a consistent population at Loxahatchee on the eastern side of the Florida peninsula. Our study demonstrates the benefit of eDNA for determining more accurate range limits and expansion information for Burmese pythons, as well as laying the foundation for the assessment of control efforts.

Tags: environment, environmental-dna, giant-constrictor-snakes, invasive-species, loxahatchee, non-invasive-monitoring, occupancy-estimate, range-delimitation, southern-florida, usgs-5c6d9e5fe4b0fe48cb4020e2
Organization: Department of the Interior
California Pronghorn Lassen Migration Corridors

The Lassen herd winters in lower elevations in the Secret Valley, Bull Flat, and the Five Springs Wilderness Study Area north of the Skedaddle Mountains and east of Shaffer Mountain, as well as in the Dry Valley Rim Wilderness Study Area. Summer ranges are spread out, with some individuals migrating north to the Madeline Plains and others heading west to Willow Creek Valley, Grasshopper Valley, and Eagle Lake (fig. XXX). An unknown portion of the herd are better characterized as residents. The primary threat to pronghorn in the Lassen herd is the conversion of perennial shrublands to exotic annual grasslands following wildfires. The 2012 Rush Fire burned 271,911 acres in Lassen County within the boundary of the Lassen herd, expanding invasive annual grasslands with altered fire regimes which increase fire frequency and promote the further expansion of exotic grasses. Overabundant free-roaming equids, feral horses and burros, regularly exceed the appropriate management level of the Twin Peaks Herd Management Area, thereby reducing forage and water available for pronghorn. The expansion of juniper into the shrub steppe limits the amount of forage available for pronghorn while increasing the risk of mountain lion predation. The population has been stable to slightly increasing since the 1992-1993 winter die off in northeast California, averaging 974 animals counted during aerial winter surveys (B. Ehler, California Department of Fish and Wildlife, written commun., 2023). CDFW is planning to mark 35 pronghorn with GPS collars in winter 2024 to estimate the population using mark resight surveys.
These mapping layers show the location of the migration corridors for pronghorn (Antilocapra americana) in the Lassen population in California. They were developed from 14 migration sequences collected from a sample size of 7 animals comprising GPS locations collected every 1-6 hours.

Tags: animal-behavior, biota, california, migration-organisms, migratory-species, united-states, usgs-6584b4acd34eff134d42d9d1, wendel
Organization: Department of the Interior
Baseline for the northern coast of Martha's Vineyard, Massachusetts, generated to calculate shoreline change rates using the Digital Shoreline Analysis System version 5.0

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. The shoreline position and change rate are used to inform management decisions regarding the erosion of coastal resources. In 2001, a shoreline from 1994 was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013, two oceanfront shorelines for Massachusetts were added using 2008-9 color aerial orthoimagery and 2007 topographic lidar datasets obtained from the National Oceanic and Atmospheric Administration's Ocean Service, Coastal Services Center. This 2018 data release includes rates that incorporate two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010 and 2014. The first new shoreline for the State includes data from 2010 along the North Shore and South Coast from lidar data collected by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise. Shorelines along the South Shore and Outer Cape are from 2011 lidar data collected by the U.S. Geological Survey's (USGS) National Geospatial Program Office. Shorelines along Nantucket and Martha’s Vineyard are from a 2012 USACE Post Sandy Topographic lidar survey. The second new shoreline for the North Shore, Boston, South Shore, Cape Cod Bay, Outer Cape, South Cape, Nantucket, Martha’s Vineyard, and the South Coast (around Buzzards Bay to the Rhode Island Border) is from 2013-14 lidar data collected by the (USGS) Coastal and Marine Geology Program. This 2018 update of the rate of shoreline change in Massachusetts includes two types of rates.  Some of rates include a proxy-datum bias correction, this is indicated in the filename with “PDB”. The rates that do not account for this correction have “NB” in their file names.  The proxy-datum bias is applied because in some areas a proxy shoreline (like a High Water Line shoreline) has a bias when compared to a datum shoreline (like a Mean High Water shoreline). In areas where it exists, this bias should be accounted for when calculating rates using a mix of proxy and datum shorelines. This issue is explained further in Ruggiero and List (2009) and in the process steps of the metadata associated with the rates.

Tags: atlantic-coast, baseline, cmgp, coastal-and-marine-geology-program, coastal-processes, digital-shoreline-analysis-system, dsas, environment, geoscientificinformation, geospatial-datasets, marthas-vineyard, massachusetts, new-england, north-america, oceans, shoreline, shoreline-change, u-s-geological-survey, united-states, usgs, usgs-5c65b160e4b0fe48cb38ff7e, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior