AndreaBozzo/ceres-open-data-index huggingface dataset:
Base-flow analysis for tributaries to Lake Superior from 1946 to 2020

These data include base flow separation estimates for 64 USGS streamflow gages in the Lake Superior watershed from 1945 to 2020, shapefiles of the gaging stations and watersheds for each gaging station, and a zipped folder of graphics of the base flow separation results. The base flow separation estimates were calculated using the U.S. Geological Survey Groundwater Toolbox (Barlow and others, 2014) for any complete water years of record for these gages from 1945 to 2020.  The shapefile of the gaging stations includes the starting and ending years of data for each station, the number of years of record. The watersheds shapefile includes the source for the watershed delineation, the watershed area, and the number of upstream and(or) downstream gaging stations on the same river system.  If there are upstream gaging stations in the river system, the watershed delineated is only the incremental part of the watershed between gaging stations. The baseflow separation estimates for each gaging station include daily, monthly, and annual output from the Groundwater Toolbox for six estimation methods included in the software (full references are available in Barlow and others, 2014): the baseflow Index-Standard method, HySep Fixed Interval, HySep Local Minimum, HySep Sliding Interval, baseflow Index-Modified, PART, and BFLOW.  A summary of the annual baseflow estimates for all the gaging stations using all the methods is provided also is included in this data release. This data release is one of three child items under the overall data release at https://doi.org/10.5066/P9084UKQ.

Tags: baseflow, biota, great-lakes, groundwater, groundwater-and-surface-water-interaction, lake-superior, michigan, minnesota, streamflow, usgs-65e7565cd34e5855ff4e6b2a, wisconsin
Organization: Department of the Interior
Groundwater and surface water data for a regional assessment of groundwater salinity variations and sources in the Indio Subbasin of the Coachella Valley, California

The U.S. Geological Survey collected groundwater samples from 17 wells in the Indio subbasin (CA basin designation 7-21.01) of the Coachella Valley and surface water samples from two sites representing sources of recharge to the Indio subbasin in 2021. These samples are intended to provide inorganic water quality data, particularly total dissolved solids (TDS), within areas of the Indio subbasin not sampled for the Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project’s assessment of the quality of groundwater used for domestic and small system drinking water supplies in Coachella Valley (CODA). Other areas of special interest for the Indio salinity study were nearby managed aquifer replenishment facilities. Various well types were sampled including domestic, public supply, irrigation, and monitoring wells. The two surface water samples were collected in order to better understand primary sources of recharge to the Indio subbasin: the Whitewater River and the Colorado River via the Coachella Canal. Groundwater samples from all 17 wells were analyzed for field water-quality parameters, major ions and trace elements, chromium (VI), perchlorate, nutrients, carbon-14 in dissolved inorganic carbon, stable isotopic ratios of water, tritium, isotopes of sulfur in sulfate, sulfur hexafluoride, and noble gases. Groundwater levels were measured in 9 of the 17 wells. Surface water samples from both sites were analyzed for field water-quality parameters, major ions and trace elements, chromium (VI), perchlorate, nutrients, and stable isotopic ratios of water. All results are presented in this data release except for the isotopic ratios of strontium and boron in water.
Data collected from 23 wells sampled in the Indio subbasin for the CODA assessment are not included in this data release but can be found here: https://doi.org/10.5066/P9UYXI95

Tags: california, coachella-valley, geoscientificinformation, groundwater, groundwater-age, indio, indio-subbasin, la-quinta, palm-desert, palm-springs, riverside-county, salinity, surface-water, tds, usgs-620c41add34e6c7e83ba95f1, water-quality
Organization: Department of the Interior
Growth and Capture Mark Recapture Data from Giant Gartersnakes (Thamnophis gigas) in Rice Irrigation Canals 2018 to 2023 (ver. 2.0, July 2025)

These data support a study modeling the growth, capture, and survival of giant gartersnakes (Thamnophis gigas). We captured giant gartersnakes inhabiting rice irrigation canals in the Sacramento Valley, California, USA from 2018 to 2023. We analyzed capture-mark-recapture data from 19 populations of giant gartersnakes sampled with an integrated growth-survival model. We tested how growth and survival of snakes relates to the amount of rice grown in the surrounding landscape.

Tags: biota, california, ecology, modeling, population-dynamics, reptiles, sacramento-valley, usgs-671a8b9ed34efed5620f9d74
Organization: Department of the Interior
l282nc.m77t - MGD77 data file for Geophysical data from field activity L-2-82-NC in Off San Mateo, Northern California from 02/07/1982 to 02/12/1982

Single-beam bathymetry, gravity, and magnetic data along with DGPS navigation data was collected as part of field activity L-2-82-NC in Off San Mateo, Northern California from 02/07/1982 to 02/12/1982, http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.meta.html
These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.bath.html, http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.grav.html, and http://walrus.wr.usgs.gov/infobank/l/l282nc/html/l-2-82-nc.mag.html into MGD77T format provided by the NOAA's National Geophysical Data Center(NGDC). The MGD77T format includes a header (documentation) file (.h77t) and a data file (.m77t). More information regarding this format can be found in the publication listed in the Cross_reference section of this metadata file.

Tags: bathymetry, bathymetry-and-elevation, bathymetry-measurement, ca, central-california-eez, distributions, geoscientificinformation, gravimeter-measurement, gravimetry, magnetic-anomalies, magnetic-field-observations, magnetometer-measurement, marine-geology, marine-geophysics, marine-gravity-field, marine-magnetic-field, north-pacific-ocean, northern-california, northern-pacific-ocean, oceans, off-san-mateo-northern-california, seafloor-topography, single-beam-echo-sounder, usa, usgs-381b8c17-ccd9-40c4-85cb-3d7222517a47, water-depth
Organization: Department of the Interior
Mesocarnivore Survey of Lassen Volcanic National Park, Klamath Network, 2017-2018

Remote camera stations were set up in Lassen Volcanic National Park from August to October 2017 and June to September 2018 to document occurrence of mesocarnivores and other wildlife. 126 cameras were set up at 32 primary sampling units (clusters of two to four cameras) throughout the park. Random locations for primary sampling units were chosen using a 3-km sampling grid over the park area. The dataset contains all species observed within the study time-frame, the date and time of observation and the number of individuals detected as well as identification for individual locations, cameras and images. Of the three target species of conservation concern (Pacific fisher (Pekania pennanti), Pacific marten (Martes caurina), Sierra Nevada red fox (Vulpes vulpes necator)), Pacific martens and Red foxes were detected.

Tags: biota, birds, california, camera-survey, carnivores, environment, image-collections, insects, klamath-monitoring-network, lassen, lassen-volcanic-national-park, mammals, mesocarnivores, pacific-northwest, plumas, shasta, tehama, usgs-5f5f959082ce3550e3bff22a, wildlife
Organization: Department of the Interior
Raw Ground Penetrating Radar Data on North American Glaciers

U.S. Geological Survey researchers conducted time-series ground-penetrating radar (GPR) surveys with a Sensors and Software 500-MHz Pulse Ekko Pro system. This data release contains ground-based (ski and snowmobile) as well as airborne common-offset profiles. All profiles are linked to coincident GPS observations. Additionally, common-midpoint data was collected at specific glacier locations. Coincident in-situ data may provide calibration information, and may be composed of any of the following: snow pits and/or snow-pit/snow-core combinations, probe profiles, and ablation stake data. This supplemental information provides estimates of snow properties which may be used to calibrate radar velocity.

Tags: ablation-zones-accumulation-zones, alaska, bear-glacier, chenega-glacier, columbia-glacier, cryosphere, eagle-glacier, east-fork-glacier, eklutna-glacier, electromagnetic-data, eureka-glacier, exit-glacier, geology, geomorphology, geophysics, geoscientificinformation, gilkey-glacier, glaciation, glaciers, glaciers-ice-sheets, glaciology, gpr, ground-penetrating-radar, gulkana-glacier, harris-glacier, lake-george-glacier, lemon-creek-glacier, llewellyn-glacier, maclaren-glacier, matanuska-glacier, montana, nelchina-glacier, norris-glacier, powell-glacier, radar, radar-imagery, radar-imaging, remote-sensing, scott-glacier, snow-and-ice-cover, south-cascade-glacier, spectral-engineering, sperry-glacier, surprise-glacier, susitna-glacier, taku-glacier, tazlina-glacier, tulsequah-glacier, usgs-asc135, valdez-glacier, west-fork-glacier, wolverine-glacier, yale-glacier
Organization: Department of the Interior
Rangewide occupancy and post-fire recovery of California Gnatcatchers in southern California, 2015-2016

Data presented are results of surveys for California Gnatcatchers and vegetation sampling conducted in 2015 and 2016 to address two inter-related questions: 
(1) How have gnatcatchers and their habitat recovered in areas burned by wildfires in 2003, 2007, and 2014?, and 
(2) What is the current regional occupancy of gnatcatchers throughout their southern California range? Data for the post-fire study were collected in 2015 and 2016, while the regional occupancy survey was conducted in 2016. In 2015, Gnatcatcher occupancy as a function of fire history was derived from 324 points in the following fire categories: 2003-2006 (106 points), 2007-2010 (111 points), and 2011-2014 (107 points). In 2016, points representing a fourth category, unburned (i.e. before 2002) were added to the design, with the following numbers of points surveyed per category: 2003-2006 (107 points), 2007-2010 (111 points), 2011-2014 (106 points), and unburned (103 points). All post-fire study points were in San Diego County. The regional occupancy survey in 2016 included a total of 334 points throughout southern California. The post-fire and regional datasets are not mutually exclusive, with some points serving in both analyses. Vegetation data were coll

Tags: biogeography, biota, coastal-sage-scrub, endangered-species, los-angeles-county, occupancy, plant-and-animal-tagging, post-fire-recovery, san-bernardino-county, san-diego-county, southern-california, survey, usgs-640a640ed34e254fd352bd62, ventura-county, western-riverside-county
Organization: Department of the Interior
UMRS Floodplain Inundation Model - Pool 8

Floodplain inundation is believed to be the dominant physical driver of an array of ecosystem patterns and processes in the Upper Mississippi River System (UMRS). Here, we present the relative elevation of a slope-detrended floodplain terrain surface and river mile location used to map surface water depths derived from gaging locations along UMRS, as described in Van Appledorn et al. (2021; doi: 10.1002/rra.3628). We excluded areas permanently wetted (aquatic areas), surfaces in agricultural production, roads, and developed areas. The data are intended for use in geospatial analyses of UMRS floodplain ecosystem patterns and processes.

Tags: flood-plain, floods, freshwater-ecosystems, hydrology, river-systems, usgs-661eaaf2d34e7eb9eb7e3d5e
Organization: Department of the Interior
Spatial data of artisanal mining riverine dredges using three different Synthetic Aperture Radar detection approaches on the Madeira River, Brazil

Three semi-automated detection approaches using Sentinel-1 Synthetic Aperture Radar (SAR) have been performed to identify artisanal and small-scale mining (ASM) riverine dredges on the Madeira River in Brazil. The methods are: i) Search for Unidentified Maritime Objects (SUMO), an established method for large ocean ship detection; and two techniques specifically developed for riverine environments: ii) a local detection method; and iii) a global threshold method. The results from each method are contained on this landing page along with the visual interpretation dataset of SAR data used as the validation dataset. The pre-processed SAR data used to produce these results are found also found on this page.

Tags: gold, mining-and-mineral-extraction, placer-deposit-mining, radar-imaging, remote-sensing, sar, usgs-654bd579d34ee4b6e05c2a74
Organization: Department of the Interior
Mississippi Alluvial Plain Boundary

To  improve flood-frequency estimates at rural streams in Mississippi, annual exceedance probability (AEP) flows at gaged streams in Mississippi and regional-regression equations, used to estimate annual exceedance probability flows for ungaged streams in Mississippi, were developed by using current geospatial data, additional statistical methods, and annual peak-flow data through the 2013 water year. The regional-regression equations were derived from statistical analyses of peak-flow data, basin characteristics associated with 281 streamgages, the generalized skew from Bulletin 17B (Interagency Advisory Committee on Water Data, 1982), and a newly developed study-specific skew for select four-digit hydrologic unit code (HUC4) watersheds in Mississippi. Four flood regions were identified based on residuals from the regional-regression analyses. No analysis was conducted for streams in the Mississippi Alluvial Plain flood region because of a lack of long-term streamflow data and poorly defined basin characteristics.  Flood regions containing sites with similar basin and climatic characteristics yielded better regional-regression equations with lower error percentages. The generalized least squares method was used to develop the final regression models for each flood region for annual exceedance probability flows. The peak-flow statistics were estimated by fitting a log-Pearson type III distribution to records of annual peak flows and then applying two additional statistical methods: (1) the expected moments algorithm to help describe uncertainty in annual peak flows and to better represent missing and historical record; and (2) the generalized multiple Grubbs-Beck test to screen out potentially influential low outliers and to better fit the upper end of the peak-flow distribution. Standard errors of prediction of the generalized least-squares models ranged from 28 to 46 percent. Pseudo coefficients of determination of the models ranged from 91 to 96 percent.The Mississippi Alluvial Plain (MAP) Flood Region is characterized by low slopes, backwater conditions, interconnecting drainage ditches, levees, indeterminate drainage boundaries, and other factors that make calculations of flood frequency uncertain. In addition, there is a lack of sufficient long-term streamflow record in the MAP; thus, flood-frequency calculations were not produced for this region.

Tags: floods, mathematical-modeling, regression-analysis, statistical-analysis, stream-gage-measurement, streamflow, usgs-5a8341ace4b00f54eb32983d
Organization: Department of the Interior
Text files of the navigation logged by HYPACK during the U.S. Geological Survey offshore of Fire Island, NY in 2014 (Geographic, WGS 84, HYPACK ASCII Text Files)

The U.S. Geological Survey (USGS) conducted a geophysical and sampling survey in October 2014 that focused on a series of shoreface-attached ridges offshore of western Fire Island, NY. Seismic-reflection data, surficial grab samples and bottom photographs and video were collected along the lower shoreface and inner continental shelf. The purpose of this survey was to assess the impact of Hurricane Sandy on this coastal region. These data were compared to seismic-reflection and surficial sediment data collected by the USGS in the same area in 2011 to evaluate any post-storm changes in seabed morphology and modern sediment thickness on the inner continental shelf. For more information about the WHCMSC Field Activity, see: https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-009-FA.

Tags: cmgp, coastal-and-marine-geology-program, dgps, differential-global-positioning-system, differential-gps, elevation, field-activity-number-2014-009-fa, fire-island, fire-island-national-seashore, gps-measurement, hypack, location, long-island, m-v-scarlett-isabella, marine-geology, navigation, navigational-data, new-york, north-america, oceans, real-time-kinematic, rtk-gps, u-s-geological-survey, united-states, usgs, usgs-ab5a55d8-9a1c-4b49-bcff-296f928cab1c, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
At-sea movements of Masked Boobies from Pedro Cays, Jamaica, 2012

As part of a larger effort to examine individual-based movement patterns and habitat use at sea for seabirds in the Caribbean, a tracking study of Masked Boobies (Sula dactylatra) breeding on the Pedro Cays, Jamaica, was implemented in 2012. This population is one of the largest of the few breeding groups in the region. The Masked Booby is considered to be declining and regionally-threatened with ca. 500-700 nests in the West Indies. This species faces numerous conservation threats at colony sites and potentially at foraging grounds. Management could be enhanced if data were available regarding foraging ranges during the breeding season as well as extent of the wintering range. Therefore, the goal of this pilot project was to gather data on individual movement patterns of Masked Boobies breeding at Pedro Cays, Jamaica.

Tags: ashmoles-halo, biota, caribbean-sea, foraging, jamaica, pedro-bank, seabird, tracking, usgs-5e74e01ce4b01d50926c6352
Organization: Department of the Interior
Oregon Spotted Frog (Rana pretiosa) Monitoring at Jack Creek 2015

This dataset contains information from mark-recapture surveys conducted in 2015 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort at Jack Creek, Klamath County, Oregon. Data consist of spotted frog counts aggregated by date, location, life stage, and sex, as well data on environmental conditions at the time each survey.

Tags: aquatic, aquatic-ecology, day, fall, jack-creek, klamath-county, land-surface, modern, native-species, oregon, population-dynamics, riparian, spring, summer, usgs-56f98817e4b0a6037df06b8c
Organization: Department of the Interior
Active channel mapping for the mainstem Willamette River, Oregon, in 2016

The active channel of the Willamette River in western Oregon is the portion of the floodplain that regularly conveys water and bed-material sediment (typically sand and gravel) on an annual basis (Wallick and others, 2013). The active channel comprises features such as gravel bars, side channels, main channel and alcoves that contribute to the overall diversity of aquatic and floodplain habitats (for example, Hall and others, 2007; Harrison and others, 2011; Williams and others, 2020). Historically, a complex mosaic of active channel features supported a diverse array of fish and wildlife, but over the last 170 years, construction of flood control dams, bank stabilization structures, removal of large wood and conversion of floodplain forests to agriculture and other land uses has resulted in substantial reductions in the complexity and abundance of active channel features (Sedell and Froggatt, 1984; Hulse and others, 2002; Baker and others, 2004; Wallick and others, 2013; Gregory and others, 2019).  
For gravel-bed rivers like the Willamette River, active channel features such as gravel bars, side channels, and alcoves can be mapped remotely to evaluate the distribution of features along the river or to assess geomorphic changes over time. Digital geomorphic maps of features within the active channel of the Willamette River were developed to document channel conditions between the confluence of the Coast Fork and Middle Fork Willamette Rivers near Springfield (floodplain kilometer [FPKM] 228) and the head of the Newberg pool, where streamflow is backwatered by Willamette Falls, near Dayton (FPKM 80) in 2009 and 2016. This documentation describes the geomorphic mapping for the active channel of the Willamette River floodplain as mapped from aerial photographs acquired in the summer of 2016.

Tags: aerial-photography, benton-county, calapooia-river, coast-fork-willamette-river, dayton, environment, geomorphology, geoscientificinformation, geospatial-analysis, geospatial-datasets, image-analysis, imagerybasemapsearthcover, inlandwaters, lane-county, linn-county, long-tom-river, luckiamute-river, marion-county, marys-river, mckenzie-river, middle-fork-willamette-river, molalla-river, oregon, polk-county, santiam-river, springfield, tualatin-river, usgs-66ff0e93d34e80be174abb22, willamette-river, yamhill-county, yamhill-river
Organization: Department of the Interior
Supporting data and model outputs for hydrologic alteration modeling in the Pearl and Pascagoula river basins

Anthropogenic hydrologic alteration threatens the health of riverine ecosystems. This study assesses hydrologic alteration in the Pearl and Pascagoula river basins using modeled daily streamflow. Machine learning was used to identify locations that have undergone statistically significant streamflow alteration, quantify the volume of the alteration, and predict alteration using cubist models. Statistically significant alteration was determined by hypothesis testing. The pre- and post-alteration flow duration curves were used to calculate the net change across 60 years. Cubist models were developed for both basins to predict hydrologic alteration and to identify important basin characteristics. This data release includes 3 input files used in the development of the models: 2 shapefiles of the Hydrologic Unit Code level 12 (HUC12) pour points in the Pearl and Pascagoula river basins and the master .csv file of covariates used in the cubist model. The data release also includes 6 model output files: the estimates of the cubist model variable coefficients for each basin, the variable importance ranked from most to least important for each basin, and observed p-values versus cubist model predicted p-values at HUC12 pour points for each basin. The observed versus predicted p-value files indicate the basins were essentially identical with respect to the amount alteration and the coefficient estimates and variable importance files demonstrate that the importance of basin geomorphology and land cover differs between the basins.

Tags: alabama, florida, gulf-coast, hydrology, louisiana, mathematical-modeling, mississippi, southeast, streamflow, texas, united-states, usgs-615234cbd34e0df5fb9bd87b
Organization: Department of the Interior
Wind rose plots for the volcano: 261030  Peuet Sague

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-58d011f8e4b0236b68f52ae1, volcanic-ash, volcanic-eruption-forecasting, wind
Organization: Department of the Interior