AndreaBozzo/ceres-open-data-index huggingface dataset:
Gravity Data of Airborne Geophysical Surveys over the 2011 Mineral, Virginia, Earthquake Area

The 2011 moment magnitude (Mw) 5.8 central Virginia earthquake was felt by millions of people and caused significant damage in the eastern United States. As part of efforts to better understand the faults and geologic features associated with the earthquake, the U.S. Geological Survey commissioned airborne geophysical surveys over the epicentral area. The surveys were conducted from July 15, 2012 - July 25, 2012, by Sander Geophysics Limited. The area was flown along a draped surface with a nominal survey height above ground of 125 meters. The flight line spacing was 200 meters for traverse lines and 2000 meters for control lines. Here we present downloadable gravity data from those surveys as image (GeoTiff or kmz), grid (gxf) or flight line (csv) data.

Tags: airborne-geophysics, airborne-gravity, earthquake, gravity, louisa-county, mineral, piedmont, subsurface-imaging, united-states-of-america, usgs-53f59acee4b09d12e0e845ca, virginia
Organization: Department of the Interior
Radiometric Data of Airborne Geophysical Surveys over the 2011 Mineral, Virginia, Earthquake Area

The 2011 moment magnitude (Mw) 5.8 central Virginia earthquake was felt by millions of people and caused significant damage in the eastern United States. As part of efforts to better understand the faults and geologic features associated with the earthquake, the U.S. Geological Survey commissioned airborne geophysical surveys over the epicentral area. The surveys were conducted from July 15, 2012 - July 25, 2012, by Sander Geophysics Limited. The area was flown along a draped surface with a nominal survey height above ground of 125 meters. The flight line spacing was 200 meters for traverse lines and 2000 meters for control lines. Here we present downloadable radiometric data from those surveys as image (GeoTiff or kmz), grid (gxf) or flight line (csv) data.

Tags: earthquake, gamma-spectrometry, louisa-county, mineral, piedmont, radiometric-data, radiometric-potassium, radiometric-thorium, radiometric-uranium, united-states-of-america, usgs-53f59ad8e4b09d12e0e845cc, virginia
Organization: Department of the Interior
Tomography pressure time series from August 15, 2011, to October 12, 2011, for injection well IW-4 at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District. The U.S. Geological Survey measured pressure with a Level TROLL 700 from August 15, 2011, to October 12, 2011, in well IW-4. These data are part of a larger data set that describe the stress test at the North District (King, 2016, http://dx.doi.org/10.5066/F7QZ2819).

Tags: 2011, aquifer-test, boulder-zone, cedar-keys-formation, deepwell-injection, effluent-injection, eocene, florida, floridan-aquifer-system, hydrogeology, miami-dade, oldsmar-formation, paleocene, tomography, underground-injection-control, usgs-56991cf7e4b0fbd3f7fa4d66
Organization: Department of the Interior
Tomography pressure time series from August 15, 2011, to October 12, 2011, for injection well IW-3 at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District. The U.S. Geological Survey measured pressure with a Level TROLL 700 from August 15, 2011, to October 12, 2011, in well IW-3. These data are part of a larger data set that describe the stress test at the North District (King, 2016, http://dx.doi.org/10.5066/F7QZ2819).

Tags: 2011, aquifer-test, boulder-zone, cedar-keys-formation, deepwell-injection, effluent-injection, eocene, florida, floridan-aquifer-system, hydrogeology, miami-dade, oldsmar-formation, paleocene, tomography, underground-injection-control, usgs-56991c92e4b0fbd3f7fa4d62
Organization: Department of the Interior
Tomography pressure time series from August 15, 2011, to October 12, 2011, for injection well IW-1 at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District. The U.S. Geological Survey measured pressure with a Level TROLL 700 from August 15, 2011, to October 12, 2011, for injection well IW-1. These data are part of a larger data set that describe the stress test at the North District (King, 2016, http://dx.doi.org/10.5066/F7QZ2819).

Tags: 2011, aquifer-test, boulder-zone, cedar-keys-formation, deepwell-injection, effluent-injection, eocene, florida, floridan-aquifer-system, hydrogeology, miami-dade, oldsmar-formation, paleocene, tomography, underground-injection-control, usgs-56991bbae4b0fbd3f7fa4d59
Organization: Department of the Interior
Tomography pressure time series (raw) from August 15, 2011, to October 12, 2011, for the lower zone of Floridan aquifer system monitoring well FA-4 at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District. The U.S. Geological Survey measured pressure with an Aqua TROLL 200 from August 15, 2011, to October 12, 2011, for the lower zone of Floridan aquifer system monitoring well FA-4. These data are part of a larger data set that describe the stress test at the North District (King, 2016, http://dx.doi.org/10.5066/F7QZ2819).

Tags: 2011, aquifer-test, avon-park-formation, avon-park-permeable-zone, deepwell-injection, effluent-injection, eocene, florida, floridan-aquifer-system, hydrogeology, miami-dade, tomography, underground-injection-control, usgs-56991b5be4b0fbd3f7fa4d51
Organization: Department of the Interior
Barometric pressure time series from August 15, 2011, to October 11, 2011, from the wellhouse for Floridan aquifer system monitoring well FA-4 at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District. The U.S. Geological Survey measured barometric pressure with a Baro TROLL 500 from August 15, 2011, to October 11, 2011, in the wellhouse for Floridan aquifer system monitoring well FA-4. These data are part of a larger data set that describe the stress test at the North District (King, 2016, http://dx.doi.org/10.5066/F7QZ2819).

Tags: aquifer-test, deepwell-injection, effluent-injection, florida, hydrogeology, miami-dade, tomography, underground-injection-control, usgs-56991b32e4b0fbd3f7fa4d4d
Organization: Department of the Interior
Tomography pressure time series from August 15, 2011, to October 12, 2011, for the upper zone of Floridan aquifer system monitoring well FA-3 at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District. The U.S. Geological Survey measured pressure with a Level TROLL 700 from August 15, 2011, to October 12, 2011, in the upper zone of Floridan aquifer system monitoring well FA-3. These data are part of a larger data set that describe the stress test at the North District (King, 2016, http://dx.doi.org/10.5066/F7QZ2819).

Tags: 2011, aquifer-test, avon-park-formation, deepwell-injection, effluent-injection, eocene, florida, floridan-aquifer-system, hawthorne-group, hydrogeology, miami-dade, miocene, ocala-limestone, oligocene, suwannee-limestone, tomography, underground-injection-control, upper-floridan-aquifer, usgs-56991aeae4b0fbd3f7fa4d49
Organization: Department of the Interior
Geochemical Characteristics of the Conterminous United States: % Sulfur

This raster depicts the percentage of lithological sulfur (S) content in surface or near surface geology. We derived these rasters by calculating the average percent S content for each map unit in combined surficial-bedrock geologic maps. We used state geologic maps (Preliminary Integrated Geologic Map Databases for the United States, Open File Reports 2004-1355, 2005-1305, 2005-1323, 2005-1324, 2005-1325, 2005-1351, and 2006-1272), which depict surficial geology instead of bedrock when the surficial layers are sufficiently deep. For the state maps that do not incorporate surficial geology (i.e., midwestern states), we overlaid surficial geologic map units with thicknesses greater than 100 feet (from Soller and Reheis [2004]) to produce combined surficial-bedrock geologic maps that were similar to other states. We characterized geology based on the 201 different lithologies that the Geologic Map Database lists as occurring in the conterminous United States. Because some of these lithologies are known to have chemical attributes that vary widely, we created an additional 83 lithologic classes based on the common modifiers used in the geologic unit descriptions to better parse chemical variability within the lithologies (e.g., carbonaceous and noncarbonaceous sandstone). Modifiers were assigned base on descriptions of geologic formations obtained through either the Lexicon of Geologic Names of the United States or literature searches. Sixteen lithologic classes were not characterized because the class was not a specific rock type (e.g., mélange, water, and landslide). These classes were characterized as no data. We translated each state’s combined surficial-bedrock geologic maps into characteristics following the methods in Olson and Hawkins (2012) by assigning an estimate of each map unit’s percent S content to every occurrence of that map unit in the combined surficial-bedrock geologic map. This estimate was calculated as the average of literature or database values of the respective property for each lithological class contained within the map unit weighted by the prevalence of each lithological class within the map unit. The accompanying Excel workbook (Lith-Nutrient.xls) contains a summary of all of the average geochemical characteristics for each lithology (“Lith Summary” tab) and tabs for each individual lithology that include the source of each record (e.g., originating from the Earth Chem Database or the specific literature reference), as well as the calculations used to determine the measure of central tendency (mean or median depending on the data). The final national raster was created by merging each of the individual state rasters. Users should be cognizant that some differences will exist in chemical and physical characterizations across state lines that are caused by unreconciled differences in lithologic descriptions or mapping scales used among the underlying state source maps.

Tags: bedrock, geochemistry, geology, sulfur, usgs-552c4ecbe4b0b22a157f5065
Organization: Department of the Interior
Terrestrial salamander captures after the 2003 Clark Fire, Willamette National Forest, OR

Data are the result of fixed-area, time-constrained searches for terrestrial salamanders within and nearby a wildfire-affected area of the Willamette National Forest, OR. The spatial extent of the study was within one kilometer of the border of the Clark fire that burned an area of 2,009 ha in 2003. Site surveys occurred during March and April, 2005. An important feature of the data is that 100-m2 sub-plots (nested within plots) were repeatedly searched for terrestrial salamanders independently up to nine times so that variation in the probability of capture could be estimated and accounted for concurrent with estimates of occupancy probability.

Tags: 2005, amphibians, biota, cascades-range, environment, fall-creek, field-inventory-and-monitoring, fires, forest-ecosystems, oregon, spring, two-years-post-fire, usa, usgs-53f637f3e4b09d12e0e9bd2a, wildlife-biology, willamette-national-forest
Organization: Department of the Interior
Tomography pressure time series from August 15, 2011, to October 12, 2011, for the lower zone of Floridan aquifer system monitoring well FA-3 at the North District Wastewater Treatment Plant, Miami-Dade County, Florida

U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District. The U.S. Geological Survey measured pressure with a Level TROLL 700 from August 15, 2011, to October 12, 2011, for the lower zone of Floridan aquifer system monitoring well FA-3. These data are part of a larger data set that describe the stress test at the North District (King, 2016, http://dx.doi.org/10.5066/F7QZ2819).

Tags: 2011, aquifer-test, avon-park-formation, avon-park-permeable-zone, deepwell-injection, effluent-injection, eocene, florida, floridan-aquifer-system, hydrogeology, miami-dade, tomography, underground-injection-control, usgs-56991874e4b0fbd3f7fa4d41
Organization: Department of the Interior
Predicted mean annual number of zero-flow days of small streams in the Upper Colorado River Basin based on historic flow data

Our objective was to model mean annual number of zero-flow days (days per year) for small streams in the Upper Colorado River Basin under historic hydrologic conditions on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a random forest modeling approach to model the relation between zero-flow days per year on gaged streams (115 gages) and environmental variables. We then projected zero-flow days per year to ungaged reaches in the Upper Colorad River Basin using environmental variables for each raster stream cell in the basin. This data layer shows modeled values for zero-flow days per year of each stream cell.

Tags: random-forests, streamflow, streamflow-modeling, ungaged-streams, upper-colorado-river-basin, usgs-56983549e4b0fbd3f7fa3dea
Organization: Department of the Interior
Predicted hydrology (intermittency) of a given stream reach under drier climate conditions in the Upper Colorado River Basin

Our objective was to model the risk of becoming intermittent under drier climate conditions on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a conditional inference modeling approach to model the relation between intermittency status on gaged streams (115 gages) and selected mean and minimum flow metrics. We then projected intermittency status and if a stream reach would be "threatened by intermittency" under a drier climate to ungaged reaches in the Upper Colorado River Basin using predicted minimum flow coefficient of variation (CV) and specific mean annual flow for each stream reach in the basin. This data layer shows modeled values of stream intermittency based on minimum flow CV and specific mean annual flow for each stream reach in the basin.

Tags: random-forests, streamflow, streamflow-modeling, ungaged-streams, upper-colorado-river-basin, usgs-56983523e4b0fbd3f7fa3de8
Organization: Department of the Interior
Predicted specific minimum flow of small streams in the Upper Colorado River Basin based on historic flow data

Our objective was to model specific minimum flow (mean of the annual minimum flows divided by drainage area [cubic feet per second per square mile]) on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a random forest modeling approach to model the relation between specific minimum flow on gaged streams (115 gages) and environmental variables. We then projected specific minimum flow to ungaged reaches in the Upper Colorado River Basin using environmental variables for each raster stream cell in the basin. This data layer shows modeled values for specific minimum flow of each stream cell.

Tags: random-forests, streamflow, streamflow-modeling, ungaged-streams, upper-colorado-river-basin, usgs-569834fee4b0fbd3f7fa3de6
Organization: Department of the Interior
Predicted specific mean daily flow of small streams in the Upper Colorado River Basin based on historic flow data

Our objective was to model specific mean daily flow (mean daily flow divided by drainage area [cubic feet per second per square mile]) on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate.We used a random forest modeling approach to model the relation between specific mean daily flow on gaged streams (115 gages) and environmental variables. We then projected specific mean daily flow to ungaged reaches in the Upper Colorado River Basin using environmental variables for each raster stream cell in the basin. This data layer shows modeled values for specific mean daily flow of each stream cell.

Tags: random-forests, streamflow, streamflow-modeling, ungaged-streams, upper-colorado-river-basin, usgs-569834d5e4b0fbd3f7fa3de4
Organization: Department of the Interior
Predicted 7-day minimum flow of small streams in the Upper Colorado River Basin based on historic flow data

Our objective was to model 7-day minimum flow (mean of the annual minimums of a 7-day moving average for each year [cubic feet per second]) on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a random forest modeling approach to model the relation between 7-day minimum flow on gaged streams (115 gages) and environmental variables. We then projected 7-day minimum flow to ungaged reaches in the Upper Colorado River Basin using environmental variables for each stream cell in the basin. This data layer shows modeled values for 7-day minimum flow of each stream cell.

Tags: random-forests, streamflow, streamflow-modeling, ungaged-streams, upper-colorado-river-basin, usgs-56983498e4b0fbd3f7fa3de2
Organization: Department of the Interior
Wetland-Change Data Derived from Landsat Imagery, Assateague Island to Metompkin Island, Maryland and Virginia, 1984 to 2015: Wetland Persistence Analysis

This U.S. Geological Survey (USGS) data release includes geospatial datasets that were created for the analysis of Virginia and Maryland Atlantic coastal wetland changes over time. Wetland change was determined by assessing two metrics: wetland persistence and land-cover switching. Because seasonal water levels, beach width, and vegetation differences can affect change analyses, only images acquired during the spring (March, April, and May) were included in the wetland-change metrics (N=10). To assess wetland-area trends, including wetland persistence, the total marsh and mixed vegetation classes land-cover types defined by Bernier and others (2015) were reclassified as 1 (wetland presence) and all other classes were reclassified as 0 (wetland absence). When the baseline data (1985) is subtracted from a later dataset, the outcome results in cells with three possible values: 0, 1, or -1, where -1 is wetland loss, 0 is no change (persistence), and 1 is wetland gain.

Tags: assateague-island, barrier-island, chincoteague-bay, coastal-hazards, environment, geology, geoscientificinformation, hurricane-sandy, land-cover-analysis, land-use-and-land-cover, landsat-operational-land-imager, landsat-thematic-mapper, maryland, multispectral-imaging, remote-sensing, remotely-sensed-imagery, time-series-analysis, u-s-geological-survey, united-states, usgs, usgs-53fa2e8c-59a4-4f77-af60-aebb56991ef2, virginia, wetland-ecosystems
Organization: Department of the Interior
Predicted minimum flow coefficient of variation (CV) for small streams in the Upper Colorado River Basin under historic hydrologic conditions.

Our objective was to model minimum flow coefficient of variation (CV) on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a random forest modeling approach to model the relation between minimum flow CV (the standard deviation of annual minimum flows times 100 divided by the mean of annual minimum flows) on gaged streams (115 gages) and environmental variables. We then projected minimum flow CV to ungaged reaches in the Upper Colorado River Basin using environmental variables for each stream cell in the basin. This data layer shows modeled values for minimum flow CV.

Tags: random-forests, streamflow, streamflow-modeling, ungaged-streams, upper-colorado-river-basin, usgs-5698345ee4b0fbd3f7fa3ddf
Organization: Department of the Interior