AndreaBozzo/ceres-open-data-index huggingface dataset:
GPS Data for Nisqually River Delta

GPS horizontal and vertical position data were collected on the Nisqually River, McAllister Creek and Nisqually River Delta to survey in water surface, instrumentation and delta structures for to reference North American Vertical Datum 1988 (NAVD88). These data are housed in .csv file named “Nisqually GPS Data” and are sorted by date and time. The position data are grouped by data collection methods Point and Topo. Point method collected position data for 180 seconds and was used to survey surface water and instrumentation elevation. Topo method collected position point data for 1 second and was used for surveying delta bathymetry elevation. Data were collected using the available RTN-GPS network provided by the Washington State Reference Network and using a Trimble R8 GPS antenna mounted on a 2-meter rod. Position data are labeled with descriptors such as “WS” (water surface) or “Delta” which refer to the feature surveyed. Check-in/check-out procedures were satisfied using reference marker Station: pid_sy0708.  Two check-in orthometric heights were collected (60.05 and 60.10 m) and following point and topo data collection one check-out orthometric height (60.04 m) was collected. 
Bathymetric data (Topo method) was collected across the Nisqually River Delta starting at the left bank of McAllister Creek (MC2) and ended on the right bank of tidal channel D4. A total of 2,505 positions were surveyed using the topo method and positions were labeled as “delta-trav###”. Delta elevation ranged from 3.44 to -1.64 meters (NAVD88). Rod and antenna were held at a fixed level marked on both upper rod and technician for maintaining a constant 2 meter height above the walking surface. The bottom half of the rod was removed during topo data collection for ease of walking to avoid rod tip drag and keeping an even pace along the delta structures. 
Tidal channel bathymetry data consists of transects between banks with position names containing the tidal channel name and distance upstream or downstream of deployed sensor. Only D4 and D3 tidal channel bathymetric data sets were collected. Both D3 (Station ID: “les”) and D4 (Station ID: “are3”) had four tidal channel bathymetry transects collected which consisting of a 10 and 20 meter upstream and downstream of deployed sensor transects. 
Point data were collected at sites with sensors collecting water depth (WL) time-series data. GPS data was collected by holding the rod/antenna unit at a bubble-level static positioned for 3 minutes (180 epochs) during data collection. Point data were water surface elevations which were used to provide offsets for converting recorded water level (WL) data by sensors to referenced NAVD88.

Tags: billy-frank-jr-nisqually-national-wildlife-refuge, hydrodynamics, salinity, sediment, specific-conductance, stream-stage, temperature, thurston-county, time-series-data, usgs-5cd1a98be4b09b8c0b7a5812
Organization: Department of the Interior
Processed airborne magnetic and radiometric grids, Shellmound, Mississippi, March 2018

Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired in late February to early March 2018 along 2,364 line-kilometers in the Shellmound, Mississippi study area.  Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. RESOLVE frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects the abundance of natural radioelements potassium, uranium, and thorium in the upper 20-30 cm that is used to determine differences in soil type. The survey was flown at an average sensor flight height of 30 m above terrain to form block-style coverage with 250 to 1,000-meter spaced east-west flight lines. A total field magnetic anomaly Grid eXchange File (.gxf) grid and a ternary radiometric geotiff image derived from the flight line data are provided (https://www.sciencebase.gov/catalog/item/5cd0ad9de4b09b8c0b79a53f). Additional details are provided in the processing steps.  
An important driver for this survey is a managed aquifer recharge pilot project developed by the U.S. Department of Agriculture Agricultural Research Service investigating the use of bank filtration along the Tallahatchie River as a source for recharge in areas of significant groundwater decline by direct injection into the Mississippi River Valley Alluvial Aquifer (MRVA).  Understanding the structure of the aquifer, including both shallow and deep confining units, is important for the success of this pilot engineering study and will be even more important for potential future large-scale engineering projects and groundwater model development efforts.

Tags: aeromagnetic-surveying, aeroradiometric-surveying, electromagnetic-surveying, electromagnetics, engineering-sciences, environment, geology-geophysics-and-geochemistry-science-center, geophysics, geoscientificinformation, geospatial-datasets, gggsc, greenwood, groundwater, hydrogeology, leflore-county, magnetic-anomaly-maps, magnetic-field, magnetics, mississippi, mississippi-alluvial-plain, mississippi-river-valley-alluvial-aquifer, mrva, radiometrics, resistivity, shellmound, sunflower-county, tallahatchie-river, usgs-5cd0ad9de4b09b8c0b79a53f, water-resources
Organization: Department of the Interior
Shapefile showing the approximate inland extent of saltwater interface in the Biscayne aquifer in 2018, Miami-Dade County, Florida

The U.S. Geological Survey (USGS), in cooperation with Miami-Dade County, mapped the approximate inland extent of saltwater intrusion in eastern Miami-Dade County in 2018. This approximation required acquisition and compilation of relevant data collected by the organizations: Florida Department of Environmental Protection (FDEP), Florida Keys Aqueduct Authority (FKAA), Florida Power &amp; Light Company (FPL), MacVicar Consulting Inc., Miami-Dade County Regulatory and Economic Resources (MD-RER),  the South Florida Water Management District (SFWMD), and the USGS. Data from the selected monitoring wells were entered into a geographic information system (GIS) for analysis and mapping. The approximate saltwater interface is represented by the 1,000-mg/L isochlor at the base of the Biscayne aquifer. The word “approximate” is used because the spatial distribution of monitoring wells is generally insufficient to create a precise representation.

Tags: aquifers, biota, biscayne-aquifer, dade-county, florida, florida-bay-florida-keys, geochemistry, hydrology, maps-and-atlases, miami, miami-dade, model-land-area, saltwater-intrusion, scientific-investigations-map, southern-florida, united-states, usgs-5cd0a9ede4b09b8c0b79a53b
Organization: Department of the Interior
Table of Data Pertaining to Mapping the Approximate Inland Extent of Saltwater at the Base of the Biscayne Aquifer in Miami-Dade County, Florida, 2018

The U.S. Geological Survey (USGS), in cooperation with Miami-Dade County, mapped the approximate inland extent of saltwater intrusion in eastern Miami-Dade County in 2018. This approximation required acquisition and compilation of relevant data collected by the organizations: Florida Department of Environmental Protection (FDEP), Florida Keys Aqueduct Authority (FKAA), Florida Power &amp; Light Company (FPL), MacVicar Consulting Inc., Miami-Dade County Regulatory and Economic Resources (MD-RER), the South Florida Water Management District (SFWMD), and the USGS. Data from the selected monitoring wells were entered into a geographic information system (GIS) for analysis and mapping. The approximate saltwater interface is represented by the 1,000-mg/L isochlor at the base of the Biscayne aquifer. The word “approximate” is used because the spatial distribution of monitoring wells is generally insufficient to create a precise representation.

Tags: aquifers, biscayne-aquifer, florida, florida-bay-florida-keys, geochemistry, hydrology, isochlor, maps-and-atlases, miami, miami-dade, miami-dade-county, model-land-area, monitoring-well, saltwater-interface, saltwater-intrusion, southern-florida, united-states, usgs-5cd0a7c3e4b09b8c0b79a531
Organization: Department of the Interior
Modern monthly effective recharge maps for the conterminous U.S., 2003-2015

This data set includes 1 km resolution monthly timescale estimates of the effective recharge component of the water budget over the time period from October 2003 - December 2015. These estimates were developed as water budget residuals using previously published data sets for other water budget components: PRISM precipitation (Daly et al., 2004), SNODAS snow water equivalent (National Operational Hydrologic Remote Sensing Center, 2004), SSEBop-WB evapotranspiration (Reitz et al., 2017), a map of groundwater-sourced irrigation (Reitz et al., 2017), and monthly surface runoff maps (Reitz et al., 2019). The recharge data were estimated as the difference between water supply (precipitation plus snow melt plus irrigation) and the other water budget components (snow accumulation, surface runoff, and ET) for a given month. In locations / months where the SNODAS snow accumulation data indicated greater snow accumulation than PRISM precipitation for that month, the snow accumulation was capped to the precipitation value. The monthly recharge maps represent the implications of these water budget component estimates on resulting recharge rates, and are not accompanied by an evaluative and interpretive journal article or report, so ought to be taken as preliminary estimates. The authors plan to follow this work with further efforts that will result in updated versions of monthly recharge maps, and accompanying interpretive and evaluative work. The data set here includes two versions of the monthly recharge maps. The raw version (e.g., "2003_raw.zip") includes negative values where the water budget component estimates for ET, runoff, and snow accumulation exceeded the water supply from precipitation and snow melt. The positive version (e.g., "2003_positive.zip") replaces these negative values with zeros. The positive version is the one that should be used for application of these data sets, but the raw version can be useful as an indication of the quality of the water budget estimates in a given location.

Tags: modern, month, recent, recharge, usgs-5cd0a1b1e4b09b8c0b79a51c, water-budget
Organization: Department of the Interior
Datasets for the 2015 potentiometric surface and water-level changes (2011-2013, 2013-2015) in the Sparta-Memphis aquifer, in Arkansas

The groundwater-level change maps for the Sparta-Memphis aquifer are constructed as a point-to-point comparison between wells measured in both 2011 and 2013. Wells not measured in both 2011 and 2013 were not included in the change maps construction. The 2011-2013 change map contains 261 corresponding wells. Groundwater-level differences were calculated by subtracting 2011 groundwater-level measurements, in ft below land surface from the 2013 groundwater-level measurements, in feet below land surface.

Tags: aquifer, arkansas, effects-of-groundwater-extraction, geoscientificinformation, groundwater, groundwater-flow, groundwater-level, hydrogeology, mississippi-embayment-aquifer-system, sparta-memphis-aquifer, usgs-5cddc089e4b0292737463845, water-resources
Organization: Department of the Interior
Bluegill catch rates and total length distributions among four sampling gears used in two Wisconsin lakes 2017

Data represent catch rates and total lengths of bluegill (Lepomis macrochirus) collected from two northern Wisconsin lakes using four different sampling gears.The data include number of bluegills captured in individual units of effort for 4 different sampling gears (Isermann_Bluegill_Sampling_catch.csv) and total lengths measured for a subsample of those fish (Isermann_Bluegill_Sampling_Total Lengths.csv).

Tags: biota, capturing-animals, mcdermott-lake-iron-county-wisconsin, sandy-beach-lake-iron-county-wisconsin, usgs-5cd0952ee4b09b8c0b79a4aa
Organization: Department of the Interior
Microbial Carbon and Nitrogen Metabolism Across a Late Pleistocene Permafrost Chronosequence

This data release includes all of the data presented in the peer-reviewed publication “Life at the frozen limit: Microbial Carbon Metabolism Across a Late Pleistocene Permafrost Chronosequence”. We collected permafrost from a Pleistocene chronosequence (19 ka to 33 ka) to examine (1) changes in the functional genetic potential of extant microbial communities to metabolize polysaccharides, (2) shifts in the quantity and quality of anions and dissolved nitrogen, and (3) changes in the molecular composition of dissolved organic matter. The data released herein shows that the age of permafrost had a marked effect on both the molecular composition of dissolved OC and the microbial community. Here we clearly demonstrate that while paleoclimate and paelovegetation affects the initial composition of permafrost carbon, microbes metabolize the carbon over time altering its characteristics.

Tags: dna-sequencing, environment, microorganisms, permafrost, pleistocene, usgs-5cd08fb1e4b09b8c0b79a466
Organization: Department of the Interior
Ovary mass and stable hydrogen isotope data for resident and migratory female dark-eyed juncos.

This dataset includes ovary mass and stable hydrogen isotope compositions of feathers and claws from resident and migratory female dark-eyed juncos (Junco hyemalis) collected during early spring at Mountain Lake Biological Station, Pembroke, Virginia.  A total of 18 migrant and 15 resident female dark-eyed juncos, a songbird that exhibits seasonal sympatry, were caught during March-April.  Stable hydrogen isotopes were used to infer relative breeding and wintering latitude of migrants. Ovary mass served as a proxy for reproductive development.  These data were used to explore whether seasonal sympatry fosters or inhibits genetic divergence between migrants and residents and to the extent that this depends on their respective timing of reproduction. There are two files in this dataset: 1) a comma delimited machine-readable file (*.csv) that represents the data dictionary, and 2) a comma delimited machine-readable file (*.csv) containing the data.

Tags: biota, migration-organisms, usgs-5cd083dbe4b09b8c0b79a3fd
Organization: Department of the Interior
Historical Ice Breakup Dates for Chequamegon Bay, Lake Superior, 1911 to 2019 (ver. 2.0, May 2019)

Ice breakup dates of Chequamegon Bay, Lake Superior from 1911 to 2019.  Ice breakup date is the day in spring when winter ice cover substantially leaves a water body.  Local residents deem "ice breakup" as when the ice moves northeast of a line straight across Chequamegon Bay out from Ellis Avenue (State highway 13).  Another way ice breakup was determined has been if you could drive a boat from the outlet of Fish Creek to Houghton Point.  The ice may move back and forth over that line but the ice is breaking up, moving and melting from that date on.  Ellis Avenue ends on a bluff (46.5925 degrees North, 90.8827 degrees West) that provides a clear view of Chequamegon Bay from Fish Creek to Houghton Point.  Mrs. C. J. Hoskings recorded the dates from 1911 to 1980.  Mr. LeRoy C. Margenau recorded the dates from 1981 to 1991.  The Ashland Marina recorded the dates from 1992-1999 and 2001.  Lori Evrard (USGS) recorded dates after 1999 except 2001.  USGS converted the dates to Julian dates.  The date of ice breakup will be updated annually.

Tags: ashland, chequamegon-bay, climatologymeteorologyatmosphere, great-lakes, lake-ice, lake-superior, usgs-5cd07b1ce4b09b8c0b79a358
Organization: Department of the Interior
MODFLOW-NWT datasets for simulations of groundwater and surface-water in the Great Dismal Swamp of Virginia and North Carolina

The U.S. Geological Survey (USGS), in cooperation with the U.S Fish and Wildlife Service, 
has investigated the hydrology of the Great Dismal Swamp (Swamp) National Wildlife Refuge 
(Refuge) in Virginia and North Carolina and developed a three-dimensional numerical model to 
simulate groundwater and surface-water hydrology. The model was developed with 
MODFLOW-NWT, a USGS numerical groundwater flow modeling program, in combination 
with the Surface-Water Routing Process, a software package that simulates dynamic 
surface-water flows, water-control-structure management, and groundwater/surface-water 
interactions.  The steady-state model was calibrated to average spring conditions using 
automated parameter estimation software (PEST) to reduce simulation errors and assess 
model parameter sensitivity.  The model was then used to simulate wet and dry climatic 
conditions and a variety of hypothetical scenarios in which water levels in the Swamp were 
raised and lowered by simulated management of water control structures.  Results of the 
model simulations indicate that, under average spring conditions, precipitation is the primary 
water input (92%); surface-water (5%) and groundwater (3%) inflows make up the remainder. 
The primary outflow (or loss) is evapotranspiration (55%), with surface outflows (about 41%) 
and groundwater outflow (about 4%) making up the remainder.  Simulated adjustment of 
water-control structure weir levels demonstrates that groundwater levels are affected by water 
levels in adjacent ditches and that surface-water and groundwater levels can be controlled 
through management of water control structures, allowing the Refuge to better manage fire 
risks and preserve forested-wetland ecosystems in the Refuge.  The 13 water control 
structures proposed in the simulated scenario representing possible future conditions 
effectively raised simulated water levels in the northeastern corner of the study area, a goal 
of the Refuge management.  Results of this study demonstrate use of MODFLOW with the 
Surface-Water Routing Process for simulating water management options in peat wetlands 
and will help Refuge managers to better understand existing hydrologic conditions, assess 
the hydrologic effects of planned changes to water control structures, and apply the new 
simulation tool to guide water management on the Refuge.

Tags: environment, geoscientificinformation, great-dismal-swamp, groundwater, groundwater-model, inlandwaters, modflow, north-carolina, pest, surface-water, usgs-5ccdf90a-4bce-402c-a82f-e5c0ba0115b8, usgsgroundwatermodel, virginia
Organization: Department of the Interior
Acoustic Doppler current profiler (ADCP) measurements of flow depth and velocity from the Blue River, Colorado, October 18, 2018

Field measurements of flow depth and velocity and river discharge were collected from two cross-sections on the Blue River in Colorado using an acoustic Doppler current profiler (ADCP).  These data were used to assess the accuracy of surface flow velocities inferred from thermal image time series, acquired from an unmanned aircraft system (UAS), via particle image velocimetry (PIV).  These data sets were collected to support research focused on developing innovative methods for non-contact measurement of river discharge based on various forms of remotely sensed data.  The ADCP data were collected with a SonTek RiverSurveyor S5 mounted on a hydroboard towed behind an inflatable kayak.  Four passes were made across the channel at each of the two cross-sections.  The ADCP data were collected and post-processed using the SonTek RiverSurveyor software package and exported to comma-separated text files using a custom MATLAB function.  The resulting *.csv files contain the spatial coordinates of each ADCP sample, which consists of measurements of depth and depth-averaged velocity vectors and magnitudes; the total discharge measured for the cross-section is reported as well.

Tags: acoustic-doppler-current-profiler, bathymetry, blue-river, co, colorado, flow-velocity, remote-sensing, river-discharge, usa, usgs-5ccc6d8be4b09b8c0b7987dd
Organization: Department of the Interior
Wading surveys of bed topography and water depth from the Blue River, Colorado, October 18, 2018

Field-based real-time kinematic (RTK) GNSS surveys of water surface elevation and channel bed topography were collected along the Blue River, focusing on two cross-sections from which remotely sensed data were obtained.  These data were used to assess the accuracy of river bed elevations inferred from the ASTRALiTe bathymetric lidar, acquired from an unmanned aircraft system (UAS).  These data sets were collected to support research focused on developing innovative methods for non-contact measurement of river discharge based on various forms of remotely sensed data.  The RTK GNSS surveys were performed using a local base station and Trimble R8 and R10 receivers while wading the channel at each cross-section.  Additional survey points were measured to define the locations of circular targets used as ground control points for geo-referencing the thermal image time series described in a related data release.  The survey data were post-processed by performing an OPUS correction of the static observations collected by the base and adjusting all of the survey points accordingly.  The survey data were exported to comma-separated text files and the resulting *.csv files contain for each point number a point ID, spatial coordinates, elevations, and a descriptive code.  One of the files contains the depths calculated as the difference between surveyed water surface elevations and bed elevations at points within the channel. The other file contains ground control points.

Tags: bathymetry, blue-river, co, colorado, depth, ground-control-points, remote-sensing, rtk-gnss-survey, usa, usgs-5ccc6d48e4b09b8c0b7987d9
Organization: Department of the Interior