AndreaBozzo/ceres-open-data-index huggingface dataset:
Gulf Watch Alaska Nearshore Component: Sea Otter Aerial Survey Data Katmai National Park and Preserve, 2008-2018

These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. Specifically, these data describe sea otter (Enhydra lutris) aerial survey observations from the waters around Katmai National Park and Preserve from surveys conducted in 2008, 2012, 2015, and 2018. Sea otters are a keystone predator, well known for structuring the nearshore marine ecosystem through their consumption of invertebrate prey. The dataset consists of 3 comma-delimited files (CSV) exported from Microsoft Excel. The data consists of (1) Strip transect counts, (2) Intensive Search Unit (ISU) counts, and (3) Transect coordinates. For each aerial survey, a pilot flew an airplane at an altitude of 91 meters over pre-determined transects while an observer searched on one side of the plane and recorded sea otter group counts and locations. Sea otters observed within 400 meters of each transect were later used to estimate abundance.  Sea otters sighted beyond the confines of designated transect swaths were also counted and mapped, time permitting.  To estimate the number of sea otters in small groups (&lt;20) not detected along transect swaths (e.g., due to diving behavior or the presence of kelp canopy), 400 meter diameter circles (i.e. ISUs) were searched intensively by periodically flying 5 concentric circles around an initiating group.  These ISUs were distributed throughout the survey area in an attempt to accurately represent the full range of observation conditions encountered during the survey.  When large groups of sea otters (&gt;=20) were sighted on transect, they were circled until a complete count was made. Data are presented as three CSV files: KATM sea otter strip transect counts in dd.csv, KATM sea otter ISU counts.csv, KATM sea otter survey transect coordinates in dd.csv

Tags: abundance, aerial-survey, alaska, animals-vertebrates, aquatic-ecosystems, benthic-habitat, biota, coastal-habitat, distribution, ecology, ecosystem-monitoring, enhydra-lutris, environment, gulf-of-alaska, intertidal-environments, katmai-national-park-and-preserve, marine-environment-monitoring, marine-mammals, otters, population-dynamics, sea-otters, usgs-asc176
Organization: Department of the Interior
Locations Collected 1985-2015 from Female Polar Bears (Ursus maritimus) with Dependent Young Instrumented in the Southern Beaufort Sea with Satellite-linked Transmitters by the USGS

This dataset contains a select subset of Argos and GPS locations collected by satellite data collection systems from collared adult female polar bears that were instrumented in the southern Beaufort Sea between 1985-2015.

Tags: alaska, animal-behavior, animals-vertebrates, bears, beaufort-sea, biota, carnivores, environment, mammals, marine-mammals, polar-bear, species-life-history, telemetry, threatened-species, ursus-maritimus, usgs-asc170, wildlife, wildlife-biology
Organization: Department of the Interior
Conservation Planning for the Colorado River in Utah - Fire Risk Model with Human Ignition Sources Output Data for Colorado River in Utah

This is a fire risk model for riparian trees on the Colorado River bottomland in Utah. The model incorporates the prevalence of riparian trees and tamarisk, and proximity to human caused ignition sources (campgrounds and roads). See Open File Report, Rasmussen and Shafroth, Colorado River Conservation Planning, for geoprocessing details.

Tags: arches-national-park, biota, canyonlands-national-park, colorado-river, conservation-planning, environment, grand-county, habitat-suitability, inlandwaters, moab, riparian, san-juan-county, tamarisk, upper-colorado-river, usgs-587d5c63e4b07af2011121f1, utah
Organization: Department of the Interior
Influenza A Virus Data from Migratory Birds, Izembek National Wildlife Refuge, Alaska

Dataset containing avian influenza screening results for waterfowl and gulls sampled during autumn in (or near) Izembek National Wildlife Refuge (NWR), Alaska, 2011-2024. These data contain information on species, age, and sex of birds sampled, collection dates, and laboratory testing information used to determine the presence and absence of influenza A viruses (IAVs).

Tags: alaska, alaska-peninsula, animals-vertebrates, aquatic-animals, avian-influenza, biota, birds, environment, health-and-disease, influenza-a-virus, izembek-national-wildlife-refuge, usgs-asc177, virus-diseases, viruses, waterfowl, wildlife-disease
Organization: Department of the Interior
Data Used to Compare Photo-Interpreted and IfSAR-Derived Maps of Polar Bear Denning Habitat for the 1002 Area of the Arctic National Wildlife Refuge, Alaska, 2006-2016

These are geospatial data that characterize the distribution of polar bear denning habitat in the 1002 Area of the Arctic National Wildlife Refuge, Alaska. They were generated to compare the efficacy of two different techniques for identifying areas with suitable den habitat: (1) from a previously published study (Durner et al., 2006) that used manual interpretation of aerial photos and (2) from computer interrogation of interferometric synthetic aperture radar (IfSAR) digital terrain models. Two datasets are included in this data package, they are both vector geospatial datasets of putative denning habitat (one dataset each for the manual photo interpretation data and the computer interpreted IfSAR data). Additionally included are: vector data used for sampling and metadata describing the IfSAR-derived digital terrain model (DTM) tiles used to generate the shapefiles. The IfSAR DTM are available for purchase through Intermap Technologies, Inc. All vector data are provided in both ESRI shapefile and Keyhole Markup Language (KML) formats.

Tags: aerial-photography, alaska, animals-vertebrates, arctic-national-wildlife-refuge, bears, beaufort-sea, biota, carnivores, denning-behavior, denning-habitat, environment, habitat-selection, ifsar, interferometric-synthetic-aperture-radar, land-surface, mammals, marine-mammals, north-slope, photo-derived, polar-bear, remote-sensing, reproductive-behavior, species-life-history, terrestrial-ecosystems, topography, tundra-ecosystems, ursus-maritimus, usgs-asc178, wildlife
Organization: Department of the Interior
10336610 Upper Truckee River at South Lake Tahoe, California: Fine Sediment Particles Model Archive Summaries

From the 2015 water year, the U.S. Geological Survey has collected data to develop a surrogate model for estimating real-time fine sediment particles concentration and loads at Upper Truckee River at South Lake Tahoe, CA (USGS site number: 10336610). Fine sediment particles represent a size range from 0.5-16.0 microns in suspended sediment and are the leading contributor of clarity reduction in Lake Tahoe. Model archive summaries document fine sediment particle surrogate models for the real-time calculation of fine sediment particles concentration at the Upper Truckee River at South Lake Tahoe, California. The methods used to produce the surrogate models follow U.S. Geological Survey (USGS) protocols as referenced in techniques and methods and external reports (see Cross References section). This ScienceBase data release is intended to be an ongoing reference which will be re-evaluated and updated annually based on USGS policy.

Tags: california, environment, geoscientificinformation, inlandwaters, lake-tahoe, nevada, real-time-monitoring-and-reporting, regression-analysis, scientific-interpretation, sedimentation, stream-gage-measurement, surface-water-quality, suspended-material-water, upper-truckee-river, usgs-60b6b094d34e86b938848a4f, water-sampling
Organization: Department of the Interior
Caribou Forage and Soil Data, North Slope of Alaska, 2011-2014

These data are nutrient concentrations of seven key forage-plant species in the ranges of three caribou herds, in northern Alaska. During the growing seasons of 2011-2014, we collected forage samples from 21 plots within the ranges of three caribou herds: Central Arctic Herd (2011-2013), Teshekpuk (2011-2013), Western Arctic (2013-2014). We also analyzed stable isotopes of carbon (13C), nitrogen (15N) and sulfur (34S) in key plants. Further, we included of soil chemistry measures within the sampling range.

Tags: alaska, animals-vertebrates, biomass, biota, brooks-range, carbon, environment, mammals, nitrogen, north-slope-census-subarea, nutrients, plant-phenology, soil-chemistry, usgs-asc179, vegetation, vegetation-species
Organization: Department of the Interior
Water chemistry of cropped wetlands and associated subsurface drainage system discharge in the Prairie Pothole Region of North Dakota, 2013–2015

A field study was conducted in the Prairie Pothole Region of North Dakota to examine potential effects of localized subsurface drainage systems on wetland hydrology. As part of discrete studies utilizing the study sites (wetland catchments) from this study, samples of wetland surface water and subsurface drainage system effluent were collected from 2013–2016 and analyzed for standard water-quality variables (ions, elements, nutrients), agricultural chemicals (herbicides, pesticides), and metals. This data release presents water-quality data associated with these samples. Surface-water samples were collected from five wetlands and effluent was collected from the two drainage-system outlets from wetland Beck 6 and the lone outlet from wetland Beck 5. The number and frequency of samples were constrained by the lack of effluent from the subsurface drainage systems, as well as by the fact the wetlands only contained surface water during portions of the study. Formal analyses were not conducted on these data due to low sample replication and since the data were intended for inclusion in discrete studies. Qualitative examination of the standard water-quality data (e.g., ions, elements, nutrients) suggested that the ratio and concentrations of the dominant ions and elements varied temporally in conjunction with wetland water levels, as well as among wetlands and water sources (surface water, effluent). Similar variability was observed for nutrients (e.g., ammonia) and other water-quality variables such as total dissolved solids and pH. In addition to the standard water-quality variables, water samples were analyzed for 93 agricultural chemicals and metals, and concentrations of seven of these analytes were above the laboratory reporting limit for at least one sample; thus, a majority of the analytes were considered non-detects. The seven detected analytes represent common agricultural herbicides.

Tags: biota, environment, north-dakota, prairie-pothole-region, stutsman-county, subsurface-drainage-systems, usgs-5a21d144e4b03852baf47477, wetland-ecosystems
Organization: Department of the Interior
Point Raw Glaciological Data: Ablation Stake, Snow Pit, and Probed Snow Depth Data on USGS Benchmark Glaciers

This dataset contains point raw glaciological field data. Snow pit and snow core data give detailed information on snow density through the measured snow column. Snow depth measurements are collected via snow probe and in some snow pits or snow cores that extend the full depth of the snowpack to the glacier's surface. Ablation stakes allow point measurement of both snow depth and snow melt against the reference of the labeled stake. Draw wires provide additional measurements of snow and ice melt, against the invariant reference of the labeled wire. It is used to calculate point mass balance, or the mass balance at a specified location on the glacier.

Tags: ablation-zones-accumulation-zones, alaska, climatologymeteorologyatmosphere, cryosphere, geoscientificinformation, glaciation, glacier-elevation-ice-sheet-elevation, glacier-mass-balance-ice-sheet-mass-balance, glaciers-ice-sheets, glaciology, gulkana-glacier, lemon-creek-glacier, montana, snow-and-ice-cover, south-cascade-glacier, sperry-glacier, usgs-asc171, washington, wolverine-glacier
Organization: Department of the Interior
Marine Ecology near Tufted Puffin Colonies across the Aleutian Archipelago and Alaska Peninsula, 2012-2014

This data package includes 6 child items with data pertaining to Tufted Puffin productivity, chick productivity, oceanographic conditions, environmental conditions, and hydroacoustic characteristics at Tufted Puffin colonies on the Aleutian Islands and Alaska Peninsula.
      Child Item 1: "Oceanographic Conditions (Temperature and Salinity), North Pacific and Bering Sea 2012-2014".
      Child Item 2: "Marine Bird and Mammal Surveys, North Pacific and Bering Sea 2012-2014".
      Child Item 3: "Tufted Puffin Colony Environmental Data, North Pacific and Bering Sea, 2012-2014".
      Child Item 4: "Hydroacoustic Surveys, North Pacific and Bering Sea, 2012 and 2014".
      Child Item 5: "Tufted Puffin Chick Body Conditions, North Pacific and Bering Sea, 2012-2014".
      Child Item 6: "Tufted Puffin Chick Diets, North Pacific and Bering Sea, 2012-2014".

Tags: acoustic-backscatter, alaska, alaska-peninsula, aleutian-islands, animals-vertebrates, aquatic-birds, bering-sea, biota, birds, coastal-ecosystems, community-dynamics, ecosystem-functions, environment, forage-fish, gulf-of-alaska, marine-ecosystems, nautical-area-scattering-coefficient, north-pacific, oceans, pelagic-habitat, population-and-community-ecology, population-dynamics, salinity, sensors, temperature, tufted-puffin, usgs-5a8633fde4b00f54eb36d6a4, waders-gulls-auks-and-allies, water-temperature, wildlife
Organization: Department of the Interior
Differential Optical Absorption Spectroscopy data acquired at Sabancaya Volcano (Peru) on 21 May 2016

On 21 May 2016, two Differential Optical Absorption Spectroscopy (DOAS) instruments were used to measure the radiance of scattered solar radiation passing through the plume emitted from Sabancaya Volcano, Peru. Spectra were recorded in the ultraviolet (UV: 280 – 425 nm) and visible (Vis: 450 – 780 nm) wavelength ranges at 0.6 and 1.2 nm resolution, respectively. Two distinct experiments were performed using different measurement geometries. In the first experiment, two zenith-looking telescopes were mounted on a vehicle, each coupling scattered sunlight into one of the two DOAS spectrometers. The vehicle traversed beneath Sabancaya’s volcanic plume between 16:43 to 17:39 UTC collecting 2075 UV spectra and an equal number of Vis spectra. In the second experiment, a scanner was used to scan the spectrometers’ viewing direction through the volcanic plume. The scanner was located at -15.824N, -71.843E and aimed at the north-eastern horizon. It scanned the spectrometers’ viewing direction from 4 to 82 degrees elevation in steps of 3 degrees. The plume was encountered at about 20 degrees elevation. The scanner was held at each position for about 5 seconds during which both UV and Vis spectra where acquired. The plume scans ran from 19:11 to 21:11 UTC and  702 spectra were recorded in both the UV and Vis spectral ranges. All recorded spectra were stamped with GPS time and location. Each spectrum is saved in a separate ASCII file which includes the 2048 radiances recorded across the spectral window of the respective spectrometer along with metadata associated with each acquisition.

Tags: doas, geochemistry, spectroscopy, usgs-58892b80e4b0ba3b075ce6d0, volcanology
Organization: Department of the Interior
Model Scripts and Water-Quality Data for Trends in the Rapid Creek Basin, South Dakota, 1970–2020

This page contains a zipped folder which contains all items necessary to run trend models and produce results published in U.S. Geological Scientific Investigations Report 2021–XXXX [Tatge, W.S., Hoogestraat, G., and Nustad, R.A., 2022, Water-Quality Data and Trends in the Rapid Creek Basin, South Dakota, 1970–2020: U.S. Geological Survey Scientific Investigations Report 2022-XXXX, XX p.]. To run the R-QWTREND program in R 6 files are required and each is included in this child page: prepQWdataV4.txt, runQWmodelV4XXUEP.txt, plotQWtrendV4XXUEP.txt, qwtrend2018v4.exe, salflibc.dll, and StartQWTrendV4.R (Vecchia and Nustad, 2020). The folder contains five items required to run the R–QWTREND trend analysis tool; a readme.txt file; an alldata.csv file; a finalsites2.csv file, a folder called "scripts", and a folder called "dataout". The "scripts" folder contains the scripts that can be used to reproduce the results found in the USGS Scientific Investigations Report referenced above. The "dataout" folder contains folders for each site evaluated for trends with .RData files with the naming convention of site_qw_MI, site_flow, site_qw_NUT, site_qw_SED, and site_qw_PHY for major ions, nutrients, sediment, and physical parameter constituents. R–QWTREND is a software package for analyzing trends in stream-water quality. The package is a collection of functions written in R (R Development Core Team, 2019), an open source language and a general environment for statistical computing and graphics. The following system requirements are necessary for using R–QWTREND: • Windows 10 operating system • R (version 3.4 or later; 64 bit recommended) • RStudio (version 1.1.456 or later). An accompanying report (Vecchia and Nustad, 2020) serves as the formal documentation for R–QWTREND. Vecchia, A.V., and Nustad, R.A., 2020, Time-series model, statistical methods, and software documentation for R–QWTREND—An R package for analyzing trends in stream-water quality: U.S. Geological Survey Open-File Report 2020–1014, 51 p., https://doi.org/10.3133/ofr20201014 R Development Core Team, 2019, R—A language and environment for statistical computing: Vienna, Austria, R Foundation for Statistical Computing, accessed December 7, 2020, at https://www.r-project.org.

Tags: hydrology, pennington-county, rapid-city, rapid-creek, south-dakota, surface-water-quality, trend-analysis, usgs-61c20a67d34e2ca389d9e70b
Organization: Department of the Interior
Data Files for the Development of Regression Equations for the Estimation of the Magnitude and Frequency of Floods at Rural, Unregulated Gaged and Ungaged Streams in Puerto Rico through Water Year 2017 (ver. 1.1, September 2021)

Estimates of the magnitude of peak-flows were updated for the 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent chance exceedance levels for 91 rural, unregulated streamgaging stations on the main island of Puerto Rico. These stations required 10 or more years of annual peak-flow record, using data to 2017, for inclusion in the study. The magnitude and frequency of floods at selected streamgages in Puerto Rico were estimated using the U.S. Geological Survey PeakFQ program and updated methods outlined in Bulletin 17C (England and others, 2018). 
Regional regression equations were calculated to estimate flood frequency statistics at ungaged locations using selected basin characteristics as explanatory variables. These variables were determined from digital spatial datasets and geographic information systems using the most recent data available, as referenced in the U.S. Geological Survey web application, StreamStats, and published in Kolb and Ryan (2021). A generalized least squares procedure in the U.S. Geological Survey program, WREG, was used to account for cross-correlation of sites and develop the final regional regression equations using drainage area as the only explanatory variable. Two separate regions were defined for regression equation use in this study to minimize residuals. 
NOTE: All of the data in the previous version can be found in version 1.1. 
References Cited:  
England J.F., Jr., Cohn, T.A., Faber, B.A., Stedinger,J.R., Thomas,W.O.,Jr., Veilleux,A.G., Kiang,J.E., and Mason,R.R., Jr., 2018, Guidelines for determining flood flow frequency —Bulletin 17C: U.S. Geological Survey Techniques and Methods, book 4, chap. B5, 148p., https://doi.org/10.3133/tm4B5.  
Kolb, K.R., and Ryan, P.J., 2021, Basin Characteristic Rasters for Puerto Rico StreamStats, 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9HK9SSQ.

Tags: floods, puerto-rico, regression-analysis, river-discharge, statistical-analysis, streamflow, streamflow-monitoring, usgs-5f8740e182cebef40f1721e4
Organization: Department of the Interior
White Sturgeon Egg-Mat Network near Shorty's Island and Myrtle Bend, 2007-2013, Koootenai River near Bonners Ferry, ID

The egg-mat data describe a sub-set of the egg-mat network operated by the Idaho 
Department of Fish and Game. The sub-set inlcudes two sites, 1. near an area 
commonly known as Shorty's Island, and 2. near the Kootenai River confluence 
with Myrtle Creek at an area commonly known as Myrtle Bend. The egg-mats 
consist of artificial substrate mats that are deployed and retrieved every 24-48 
hours by IDFG personnel. The egg-mat material is designed to trap eggs that 
come in contact with the mat, allow personnel to quanitify the number of eggs 
for the deployed period. The egg-mat data is described by date, quantity of eggs 
retrieved, and the spatial location (geographic and projected coordinates).

Tags: bathymetry, bonners-ferry, capacity, contour, elevation, geographic-names, geology, hydrography, id, idaho, inland-waters, inlandwaters, islands, kootenai-river, lakes, lidar, multibeam, orthoimage, topographic, u-s-geological-survey, u-s-national-grid, usa, usgs, usgs-e8494dcb-f54d-45de-a098-4aabf7f6e1cc, water-depth
Organization: Department of the Interior
Bathymetry--Offshore Half Moon Bay, California

This part of DS 781 presents data for the bathymetry map of the Offshore Half Moon Bay, California. The raster data file is included in "Bathymetry_OffshoreHalfMoonBay.zip," which is accessible from https://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data_catalog_OffshoreHalfMoonBay.html. These data accompany the pamphlet and map sheets of Cochrane, G.R., Dartnell, P., Greene, H.G., Johnson, S.Y., Golden, N.E., Hartwell, S.R., Dieter, B.E., Manson, M.W., Sliter, R.W., Ross, S.L., Watt, J.T., Endris, C.A., Kvitek, R.G., Phillips, E.L., Erdey, M.D., Chin, J.L., and Bretz, C.K. (G.R. Cochrane and S.A. Cochran, eds.), 2014, California State Waters Map Series—Offshore of Half Moon Bay, California: U.S. Geological Survey Open-File Report 2014–1214, pamphlet 37 p., 10 sheets, scale 1:24,000, https://doi.org/10.3133/ofr20141214.
The bathymetry map of the Offshore Half Moon Bay, California, map area was generated from bathymetry data collected by Fugro Pelagos, and by California State University, Monterey Bay (CSUMB). Mapping was completed in 2006 and 2007, using a combination of 400-kHz Reson 7125 and 244-kHz Reson 8101 multibeam echosounders. These mapping missions combined to collect bathymetry from about the 10-m isobath to beyond the 3-nautical-mile limit of California's State Waters. These data are not intended for navigational purposes.
NOTE: the horizontal datum of the bathymetry data (NAD83) differs from the horizontal datum of other layers in this SIM (WGS84). 

Tags: bathymetry, bathymetry-and-elevation, bathymetry-measurement, cmhrp, coastal-and-marine-hazards-and-resources-program, continental-island-shelf, distributions, environment, geoscientificinformation, geospatial-datasets, half-moon-bay, imagerybasemapsearthcover, maps-and-atlases, marine-geophysics, marine-nearshore-subtidal, marine-offshore-subtidal, multibeam-echo-sounder, northern-california-ecoregion, oceans, pacific-coastal-and-marine-science-center, pcmsc, rock-substrate, seabed, seafloor-topography, sonar-methods, state-of-california, transform-continental-margin, u-s-geological-survey, unconsolidated-mineral-substrate, usgs, usgs-d7ddc213-35fc-41b4-908d-55671a36d902
Organization: Department of the Interior