AndreaBozzo/ceres-open-data-index huggingface dataset:
Survey tracklines of chirp subbottom data collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri polyline shapefile, CHIRP_TRK.SHP)

In freshwater bodies of New Hampshire, the most problematic aquatic invasive plant species is Myriophyllum heterophyllum or variable leaf water-milfoil. Once established, variable leaf water-milfoil forms dense beds that can alter the limnologic characteristics of a waterbody, impacting natural lacustrine communities and their habitats.  Variable leaf water-milfoil infestations also disrupt recreational uses of waterbodies and have negatively affected swimming, boating, fishing, and property values in and around several lakes and ponds in New Hampshire.
In 1965, Moultonborough Bay, Lake Winnipesaukee became the first waterbody in New Hampshire where variable leaf water-milfoil was observed. Variable leaf water-milfoil is native to the Southeastern and Midwestern areas of the United States where more alkaline waters appear to limit the growth of this plant. Outside its native range, however, it adapts well to the relatively acidic, low-alkalinity, and nutrient-poor conditions of oligotrophic lakes and bays similar to Moultonborough Bay.
In 2005, the New Hampshire Department of Environmental Services (NHDES) collaborated with the U.S. Geological Survey to investigate the distribution (presence and density) of variable leaf water-milfoil in Moultonborough Bay. This study utilized geophysical systems and conventional water-quality measurements to identify lake-floor environments that may provide suitable habitat for the establishment and growth of variable leaf water-milfoil. The results of the study are intended to assist resource managers in federal and state agencies by providing methods for detecting variable leaf water-milfoil and for identifying areas susceptible to infestation. Ultimately, this information may lead to early detection, prevention, and more effective mitigation strategies.
Field activity information for this cruise is available on-line through the U.S. Geological Survey Coastal and Marine Geoscience Data System https://cmgds.marine.usgs.gov/fan_info.php?fa=2005-004-FA.

Tags: chirp, cmgp, coastal-and-marine-geology-program, edgetech-sb-424-subbottom-profiler, field-activity-number-05004, field-activity-number-2005-004-fa, geophysics, geospatial-datasets, inlandwaters, lake-winnipesaukee, location, marine-geology, moultonborough-bay, navigational-data, new-hampshire, north-america, polyline-shapefile, r-v-rafael, seismic, subbottom-profiler, survey-line, tracklines, u-s-geological-survey, united-states, usgs, usgs-cmgp-infobank-id-r-1-05-nh, usgs-f8c2ed66-2d34-4279-b867-de1d78f79ecc, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
Sidescan sonar polyline shapefile of trackline navigation files collected by the U.S. Geological Survey in the Madison Swanson and Steamboat Lumps Marine Protected Areas, Gulf of Mexico in 2000 (Geographic, WGS 84)

The U.S. Geological Survey (USGS) mapped approximately 22 square miles of the Madison Swanson Marine Protected Area (MPA) and Steamboat Lumps MPA, which are located on the Florida shelf edge in the northeastern Gulf of Mexico in 2000 using sidescan sonar and high-resolution chirp seismic-reflection systems. This survey was conducted as part of a larger study of the effectiveness of no-fishing reserves in protecting grouper spawning aggregations. Field activity information for this cruise is available on-line through the U.S. Geological Survey Coastal and Marine Geoscience Data System at https://cmgds.marine.usgs.gov/fan_info.php?fa=2000-005-FA.

Tags: cmgp, coastal-and-marine-geology-program, dgps, differential-global-positioning-system, field-activity-number-2000-005-fa, florida, geospatial-datasets, gulf-of-mexico, hypack, location, madison-swanson-marine-protected-area, marine-geology, marine-geophysics, navigation, navigational-data, north-america, oceans, polyline-shapefile, r-v-oregon-ii, steamboat-lumps-marine-protected-area, u-s-geological-survey, united-states, usgs, usgs-f8cc2eb8-aa59-4159-bdc9-adf262fa2d31, west-florida-shelf, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
MODFLOW-2005 Models for Revisiting "An Exercise in Groundwater Model Calibration and Prediction"

Hypothetical two-dimensional, steady-state groundwater flow models of a previously 
published 1988 model calibration exercise were developed using the finite-difference 
computer code, MODFLOW-2005, to demonstrate the power of modern parameter 
estimation and uncertainty approaches.  For this study, an initial run recreated the 
1988 "truth" model.  The true model was then simplified to account for information 
not provided the participants in the 1988 calibration exercise. Increasing sophistication 
was brought to bear to demonstrate how problems identified in 1988 were overcome 
using modern software approaches. This USGS data release contains all of the input 
and output to run the model simulations described in the associated journal article 
(https://doi.org/10.1111/gwat.12907).

Tags: education, environment, geoscientificinformation, groundwater, groundwater-model, inlandwaters, modflow, parameter-estimation, pest, uncertainty-analysis, usgs-f8d07e2f-21ba-40e8-9cf6-c4ce528a05a8, usgsgroundwatermodel
Organization: Department of the Interior
Geodatabase of the datasets used to represent the four subunits of the Southeastern Coastal Plain aquifer system, Alabama, Georgia, Mississippi, South Carolina, and Tennessee

This geodatabase includes spatial datasets that represent the Southeastern 
Coastal Plain aquifer system in the States of Alabama, Georgia, Mississippi, 
South Carolina, and Tennessee. Included are: 
(1) polygon extents; datasets that represent the aquifer system extent, the entire 
extent subdivided into subareas or subunits, and any polygon extents of special 
interest (outcrop areas, no data available, areas underlying other aquifers, anomalies, 
for example), 
(2) raster datasets for the altitude of each aquifer subarea or subunit, 
(3) altitude, and/or if applicable, thickness contours used to generate the surface rasters, 
(4) georeferenced images of the figures that were digitized to create the altitude and 
thickness contours. The images and digitized contours are supplied for reference.
			
The extent of the Southeastern Coastal Plain aquifer system is derived the linework in the 
Southeastern Coastal Plain aquifer system extent maps in a digital version of the aquifer 
extent presented in the Groundwater Atlas of the United States (the U.S. Geological 
Survey Hydrologic Atlas HA-730-F, -730-G, and -730-K. The Southeastern Coastal 
Plain aquifer system has 4 aquifer subunits, in order from the most surficial to the 
deepest: A1: Chickasawhay River aquifer, A2: Pearl River Aquifer, A3: Chattahoochee 
River Aquifer, and A4: Black Warrior River Aquifer. 
		
The altitude and thickness contours for each available subunit were digitized from 
georeferenced figures of altitude contours in U.S. Geological Survey Profession 
Paper 1410-B, (USGS PP 1410-B), and the resultant top and bottom altitude 
values were interpolated into surface rasters within a GIS using tools that create 
hydrologically correct surfaces from contour data, derive the altitude from the 
thickness (depth from the land surface), and merge the subareas into a single surface. 
The primary tool was  "Topo to Raster" used in ArcGIS, ArcMap, Esri 2014. 
The surface rasters were  corrected for the areas where the altitude of an underlying 
layer of the aquifer exceeded altitude of an overlying layer.

Tags: alabama, aquifer, aquifer-system, black-warrior-river-aquifer, chattahoochee-river-aquifer, chickasawhay-river-aquifer, environment, extent, georgia, geoscientificinformation, groundwater, inlandwaters, mississippi, pearl-river-aquifer, south-carolina, southeastern-coastal-plain-aquifer-system, tennessee, united-states, usgs-f8e25f17-aa3a-49c1-8544-4e782dfc23f0
Organization: Department of the Interior
SEG-Y format of chirp seismic-reflection profiles collected in Lake Mead in 1999

Lake Mead is a large interstate reservoir located in the Mojave Desert of southeastern Nevada and northwestern Arizona.  It was impounded in 1935 by the construction of Hoover Dam and is one of a series of multi-purpose reservoirs on the Colorado River.  The lake extends 183 km from the mouth of the Grand Canyon to Black Canyon, the site of Hoover Dam, and provides water for residential, commercial, industrial, recreational, and other non-agricultural users in communities across the southwestern United States.  Extensive research has been conducted on Lake Mead, but a majority of the studies have involved determining levels of anthropogenic contaminants such as synthetic organic compounds, heavy metals and dissolved ions, furans/dioxins, and nutrient loading in lake water, sediment, and biota (Preissler, et al., 1998; Bevans et al, 1996; Bevans et al., 1998; Covay and Leiker, 1998; LaBounty and Horn, 1997; Paulson, 1981).  By contrast, little work has focused on the sediments in the lake and the processes of deposition (Gould, 1951).  To address these questions, sidescan-sonar imagery and high-resolution seismic-reflection profiles were collected throughout Lake Mead by the USGS in cooperation with researchers from University of Nevada Las Vegas (UNLV).  These data allow a detailed mapping of the surficial geology and the distribution and thickness of sediment that has accumulated in the lake since the completion of Hoover Dam.  Results indicate that the accumulation of post-impoundment sediment is primarily restricted to former river and stream beds that are now submerged below the lake while the margins of the lake appear to be devoid of post-impoundment sediment.  The sediment cover along the original Colorado River bed is continuous and is typically greater than 10 m thick through much of its length.  Sediment thickness in some areas exceeds 35 m while the smaller tributary valleys typically are filled with less than 4 m of sediment.  Away from the river beds that are now covered with post-impoundment sediment, pre-impoundment alluvial deposits and rock outcrops are still exposed on the lake floor.

Tags: arizona, black-canyon, chirp, cmgp, coastal-and-marine-geology-program, colorado-river, cruise-serial-number-99014, geophysics, geoscientificinformation, grand-canyon, hoover-dam, images, inlandwaters, lake-mead, las-vegas, mojave-desert, nevada, north-america, ofr03-320, open-file-report, seg-y, seismic, sub-bottom-profiling, u-s-geological-survey, united-states, usgs, usgs-f8e5f393-fd99-4a4d-9934-dcfd4b4fc63e, woods-hole-field-center
Organization: Department of the Interior
Sea Turtle Nesting Decision Points and Cross-Shore Beach Profile Data Collected on May 25, 2021, from Melbourne Beach, Florida

On May 25, 2021, surveys were conducted on ‘high-density’ sea turtle nesting areas located on Melbourne Beach, Florida. This dataset, Melbourne_20210525.zip, was collected and processed by the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) and includes sea turtle nesting decision point locations (.csv) and cross-shore beach profiles (.xyz) at those locations. Utilizing previously published methods for collecting beach profile data (Henderson and others, 2016; Brown and others, 2018), data were acquired by USGS scientists walking along cross-shore transect lines while carrying a survey backpack that was equipped with a Global Navigation Satellite System (GNSS) receiver and GNSS antenna. The horizontal position data are provided in the Universal Transverse Mercator (UTM) coordinate system, Zone 17 North (17N), referenced to the North American Datum of 1983 (NAD83), and the elevation data are referenced to the North American Vertical Datum of 1988 (NAVD88), GEOID12B.

Tags: altimetry, beach, cmhrp, coastal-and-marine-hazards-and-resources-program, distributions, earth-science-gt-land-surface-gt-topography-gt-terrain-elevation, earth-science-gt-oceans-gt-coastal-processes-gt-beaches, elevation, elevation-data, florida, geology, geomorphology, geoscientificinformation, global-navigation-satellite-system-gnss-observations, gnss-measurement, marine-geology, oceans, providers-gt-government-agencies-u-s-federal-agencies-gt-doi-gt-usgs-gt-doi-usgs-cmg, south-atlantic, spcmsc, st-petersburg-coastal-and-marine-science-center, topographic-mapping, topography, u-s-geological-survey, united-states, usgs, usgs-f8ebad66-04bf-4748-a79d-74113c5c0108
Organization: Department of the Interior
RES2DINV Format Continuous Resistivity Profiles from Cape Cod National Seashore, May 19, 2004

Continuous resistivity profiling (CRP) surveys were conducted at Cape Cod National Seashore in 2004 and 2006 in order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean. Coastal resource managers here and elsewhere are concerned about nutrients that are entering coastal waters via submarine groundwater discharge, which are contributing to eutrophication and harmful algal blooms. CRP is used to measure electrical resistivity of sediments, a property that is sensitive to differences in salinity of submarine ground water. The 2004 and 2006 surveys used floating resistivity streamers of 100 m and 50 m respectively. The depth penetration of the streamers is approximately 20% of the streamer length which translates to approximately 20-25 m with the 100 m streamer and 12-14 m with the 50 m streamer. These data were processed using AGI's EarthImager 2D software.

Tags: atlantic-ocean, cape-cod, cape-cod-national-seashore, cmgp, coastal-and-marine-geology-program, continuous-resistivity-profiling, crp, geoscientificinformation, ground-water, inlandwaters, location, massachusetts, navigational-data, north-america, oceans, of-2006-1169, open-file-report, pleasant-bay, submarine-ground-water, u-s-geological-survey, united-states, usgs, usgs-f9053f02-de9c-486c-9e45-b7f37ca491ce, whsc-field-activity-serial-number-04014, woods-hole-science-center
Organization: Department of the Interior
2009 Cape Canaveral USGS EAARL Lidar-Derived Dune Crest, Toe and Shoreline

The Storm-Induced Coastal Change Hazards component of the National Assessment of Coastal Change Hazards project focuses on understanding the magnitude and variability of extreme storm impacts on sandy beaches. Lidar-derived beach morphologic features such as dune crest, toe and shoreline help define the vulnerability of the beach to storm impacts. This dataset defines the elevation and position of the seaward-most dune crest and toe and the mean high water shoreline derived from the 2009 Cape Canaveral (Florida) USGS Experimental Advanced Airborne Research Lidar (EAARL) lidar survey. Beach width is included and is defined as the distance between the dune toe and shoreline along a cross-shore profile. The beach slope is calculated using this beach width and the elevation of the shoreline and dune toe.

Tags: atlantic-ocean, cmgp, coastal-and-marine-geology-program, coastal-processes, elevation, environment, florida, geoscientificinformation, hazards, marine-geology, ocean-sciences, oceans, spcmsc, st-petersburg-coastal-and-marine-science-center, u-s-geological-survey, united-states-of-america, usgs, usgs-f90c982f-ddf6-4876-8918-260d27a09223
Organization: Department of the Interior
Seabed still images in JPEG format and image locations collected on Stellwagen Bank during U.S. Geological Survey field activity 2017-030-FA, aboard the R/V Auk, May 18-23, 2017

This field activity is part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop high-resolution (1:25,000) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics. This cruise was conducted in collaboration with the Stellwagen Bank National Marine Sanctuary, and the data collected will aid research on the ecology of fish and invertebrate species that inhabit the region. The Sanctuary's research vessel, R/V Auk, visited 50 locations on Stellwagen Bank at which a customized Van Veen grab sampler (SEABOSS) equipped with a video camera and a CTD was deployed in drift mode to collect sediment for grain-size analysis, video imagery of the seabed, and measurements of water column properties.

Tags: atlantic-ocean, cmhrp, coastal-and-marine-hazards-and-resources-program, field-monitoring-stations, geoscientificinformation, ground-truth, image-collections, location, marine-geology, massachusetts, massachusetts-bay, north-america, oceans, photographic-sampling, sbnms, sea-floor-characteristics, sea-floor-samples, seabed, sediment-samples, stellwagen-bank, stellwagen-bank-national-marine-sanctuary, u-s-geological-survey, underwater-photography, united-states, usgs, usgs-f92302d5-dfd8-49e3-aedd-dd83168e6264, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
R/V FARNELLA cruise 90-4 cores

This GIS overlay is a component of the U.S. Geological Survey, Woods Hole Science Center's, Gulf of Mexico GIS database. The Gulf of Mexico GIS database is intended to organize and display USGS held data and provide on-line (WWW) access to the data and/or metadata.

Tags: arcview, cmgp, coastal-and-marine-geology-program, cores, cruise-serial-number-90003, drilling-and-coring, eez, exclusive-economic-zone, farnella, geoscientificinformation, geospatial-datasets, gulf-of-mexico, gulf-of-mexico-database, location, mississippi-fan, multipoint, navigational-data, oceans, samples, shapefile, u-s-geological-survey, usgs, usgs-f9251782-fe05-47d8-bbeb-3e8749ba3acf, whsc, woods-hole-science-center
Organization: Department of the Interior
Locations of bottom photographs collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri  point shapefile, 2005-004-FA_PHOTOS.SHP)

In freshwater bodies of New Hampshire, the most problematic aquatic invasive plant species is Myriophyllum heterophyllum or variable leaf water-milfoil. Once established, variable leaf water-milfoil forms dense beds that can alter the limnologic characteristics of a waterbody, impacting natural lacustrine communities and their habitats.  Variable leaf water-milfoil infestations also disrupt recreational uses of waterbodies and have negatively affected swimming, boating, fishing, and property values in and around several lakes and ponds in New Hampshire.
In 1965, Moultonborough Bay, Lake Winnipesaukee became the first waterbody in New Hampshire where variable leaf water-milfoil was observed. Variable leaf water-milfoil is native to the Southeastern and Midwestern areas of the United States where more alkaline waters appear to limit the growth of this plant. Outside its native range, however, it adapts well to the relatively acidic, low-alkalinity, and nutrient-poor conditions of oligotrophic lakes and bays similar to Moultonborough Bay.
In 2005, the New Hampshire Department of Environmental Services (NHDES) collaborated with the U.S. Geological Survey to investigate the distribution (presence and density) of variable leaf water-milfoil in Moultonborough Bay. This study utilized geophysical systems and conventional water-quality measurements to identify lake-floor environments that may provide suitable habitat for the establishment and growth of variable leaf water-milfoil. The results of the study are intended to assist resource managers in federal and state agencies by providing methods for detecting variable leaf water-milfoil and for identifying areas susceptible to infestation. Ultimately, this information may lead to early detection, prevention, and more effective mitigation strategies.
Field activity information for this cruise is available on-line through the U.S. Geological Survey Coastal and Marine Geoscience Data System https://cmgds.marine.usgs.gov/fan_info.php?fa=2005-004-FA.

Tags: bottom-photographs, cmgp, coastal-and-marine-geology-program, field-activity-number-05004, field-activity-number-2005-004-fa, geoscientificinformation, geospatial-datasets, imagerybasemapsearthcover, inlandwaters, jpeg, lake-winnipesaukee, location, marine-geology, moultonborough-bay, navigational-data, new-hampshire, north-america, point-shapefile, r-v-rafael, seabed-observation-and-sampling-system, seaboss, u-s-geological-survey, underwater-photography, united-states, usgs, usgs-cmgp-infobank-id-r-1-05-nh, usgs-f9252f53-c466-4086-bf11-41c92ff3e2d1, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
SOCAL_BIASVALUES - Southern California Shoreline Bias Values

The USGS has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data.  Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002.  These shorelines were used to calculate long-term and short-term change rates in a GIS using the Digital Shoreline Analysis System (DSAS) version 3.0; An ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304, Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.M. Shoreline vectors derived from historic sources (first three time periods) represent the high water line (HWL) at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line (MHW). Changing the shoreline definition from a proxy-based physical feature that is uncontrolled in terms of an elevation datum (HWL) to a datum-based shoreline defined by an elevation contour (MHW) has important implications with regard to inferred changes in shoreline position and calculated rates of change. This proxy-datum offset is particularly important when averaging shoreline change rates alongshore. Since the proxy-datum offset is a bias, virtually always acting in the same direction, the error associated with the apparent shoreline change rate shift does not cancel during averaging and it is important to quantify the bias in order to account for the rate shift. The shoreline change rates presented in this report have been calculated by accounting for the proxy-datum bias.

Tags: baseline, beach-erosion, beach-nourishment, bias, california, cmgp, coastal-and-marine-geology-program, coastal-processes, coastal-survey-map, continental-island-shore-complex, effects-of-coastal-change, endpoint-rate, environment, erosion, esri-polyline-shapefile, geoscientificinformation, historic-shoreline, lidar, linear-regression-rate, oceans, offset, shoreline, shoreline-accretion, shoreline-change-rate, shoreline-erosion, southern-california-bight-ecoregion, t-sheet, tp-sheet, u-s-geological-survey, united-states, usgs, usgs-f928b475-9dad-4d27-9791-ee9073c4b44a
Organization: Department of the Interior