AndreaBozzo/ceres-open-data-index huggingface dataset:
Digital elevation models (DEMs) of the Elwha River delta, Washington, August 2011

This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in August 2011. Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey developed an integrated research program aimed at understanding the ecosystem responses following dam removal that included regular monitoring of coastal and nearshore bathymetry and topography. As part of this monitoring program, the USGS conducted a bathymetric and topographic survey in the Strait of Juan de Fuca on the Elwha River delta, Washington (USGS Field Activity Number W-06-11-PS). Bathymetry data were collected using two personal watercraft (PWCs), each equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with GNSS receivers mounted on backpacks. DEM surfaces were produced from all available elevation data using linear interpolation.

Tags: bathymetry, bathymetry-and-elevation, bathymetry-measurement, digital-elevation-models, echo-sounders, elevation, global-positioning-system-gps-observations, gps-global-positioning-system, gps-measurement, single-beam-echo-sounder, topographic-mapping, topography, usgs-5854515be4b0e2663625f4b8, water-depth
Organization: Department of the Interior
Table of locations within the West Napa Fault System where surface faulting produced by the Mw 6.0 South Napa Earthquake of August 24, 2014 was anticipated but where no evidence of ground disturbance was observed

Locations along fault trends and InSAR lineaments where surface faulting was anticipated but where no evidence of ground disturbance was observed. Each record in our Negative Evidence table constitutes a station, which is a location where an observation was made by a single investigator or a field team working together (an observer) during a single visit on particular date.

Tags: california, deformation-geologic, earthquake-occurrences, faulting-geologic, field-inventory-and-monitoring, geoscientificinformation, napa, napa-county, san-francisco-bay, usgs-58545b26e4b0e2663625f4cd
Organization: Department of the Interior
Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T9 from 1977

Orthorectified image from aerial photograph of wetland T9 in the Cottonwood Lake Study Area, Stutsman County, North Dakota. This image is part of a collection of photographs of the study area acquired during July and early August from 1975 to 2015.

Tags: aerial-photography, chase-lake-wetland-management-districtgtstutsman-county-waterfowl-production-areagteddy, chase-lake-wetland-management-districtgtstutsman-county-waterfowl-production-areagtshuler, cottonwood-lake-study-area, earth-sciencegtbiospheregtecosystemsgtaquatic-ecosystemsgtwetlands, earth-sciencegtbiospheregtecosystemsgtterrestrial-ecosystemsgtwetlands, environment, image-collections, imagerybasemapsearthcover, inlandwaters, north-dakota, northern-great-plains, platformgtaerial-photographs, prairie-pothole-region, stutsman-county, surface-water-non-marine, united-states-of-america, usgs-585d49a3e4b01224f329bd91, wetland-ecosystems
Organization: Department of the Interior
Physical Properties by Geologic Unit in the Southern San Luis Basin, New Mexico

Physical properties of geologic units are important for geophysical interpretation because they provide the tie between lithology and geophysical fields. For gravity data, the applicable physical property is bulk density, which is the overall mass per unit volume of rocks, sediments, and their pore spaces. Bulk dry density is the mass per unit volume measured when the sample is dry.  Saturated density is the mass per unit volume measured when the sample is saturated with fresh water, which has a density of 1,000 kg/m^3.  The two values are commonly compared in order to determine the porosity of a sample, that is, the percentage of the volume that is composed of open space.  Density is commonly reported in kilograms per cubic meter in the International System of Units (SI). 
For magnetic data, the applicable physical property is total magnetization, which is determined by the quantity of naturally occurring magnetic minerals in rocks and sediments, and the nature of their permanent magnetizations. Total magnetization is the vector sum of two components: remanent and induced (Blakely, 1995; Hansen and others, 2005). The induced component is a function of the quantity of magnetic minerals (commonly magnetite) and is a vector that is always oriented parallel to the present-day Earth’s magnetic field. The quantity of magnetic minerals is proportional to magnetic susceptibility, a property that can be measured from hand samples or outcrops.  Measurements using these instruments provide values of volume magnetic susceptibility as opposed to mass magnetic susceptibility, which is commonly obtained in the laboratory.  Values of magnetic susceptibility represent a ratio, and so are unitless, but the system of units must be specified for the values to be useful.  Data reported here are in International System of Units (SI). 
The remanent component represents the vector sum of all permanent magnetizations held by the magnetic minerals, which have fixed directions irrespective of the ambient magnetic field (McElhinny, 1973). Remanent components that are generally aligned with or opposite to the present-day Earth’s field are considered to have normal or reversed polarity, respectively.  The remanent component is determined from paleomagnetic laboratory measurements of oriented samples, none of which are reported here.  However, the remanent components for volcanic units in the southern San Luis Basin are known to be significant, and commonly dominate the total magnetization (Grauch and Keller, 2004).

Tags: arroyo-seco, bedrock-geologic-units, bulk-density, cerro-de-la-olla, cerro-de-los-taoses, cerro-negro, el-rito, geophysics, geoscientificinformation, gravitational-field-earth, igneous-rocks, magnetic-field-earth, magnetic-susceptibility-analysis, metamorphic-rocks, new-mexico, picuris-mountains, pilar, porosity, questa, saturated-density, sedimentary-rocks, surficial-geologic-units, talpa, town-of-taos, tres-piedras, tusas-mountains, usgs-5854695be4b02bdf68156805
Organization: Department of the Interior
Expert opinion questionnaire regarding the importance of climate in determining species distribution for 15 threatened and endangered species in Florida

We developed an expert opinion questionnaire to gather information regarding expert opinion regarding the importance of climate variables in determining a species geographic range (Brandt et al. 2017). The data on the Survey_Results tab represent the raw survey questions and responses. Each column in the spreadsheet (except the first four columns, described below) represents a survey question, which is written in the first cell of that column. Each survey response for that question is listed below. Some questions have multi-part answers, and are listed in multiple columns, and appended with letters (e.g., Q8A, Q8B, Q8C, etc.). The first four columns of the spreadhseet represent unique information for that survey response, and are described below. Respondent_ID The Respondent_ID represents a unique identifier for each individual survey response. Start_Date The Start_Date represents the beginning day of the survey response for each survey. End_Date The End_Date represents the last day of the survey response for each survey. Custom_Data The Custom_Data column represents unique information filled out by the survey respondent for that survey, which typically includes the species name for which the survey applies to, as written by the survey respondent. Reference:Brandt, L.A., Benscoter, A.M., Harvey, R., Speroterra, C., Bucklin, D., Romañach, S.S., Watling, J.I., Mazzotti, F.J., 2017, Comparison of climate envelope models developed using expert-selected variables versus statistical selection, Ecological Modelling 345:10-20.

Tags: climate-adaptation, climate-change, conservation, conservation-planning, endangered-species, expert-opinion, threatened-species, usgs-58580222e4b0e40e53c23754
Organization: Department of the Interior
Target groups masks for climate envelope models for 15 threatened and endangered species in Florida

We developed a modelling spatial domain, or mask, to delimit the modeling extent for each species (n=15 species), as a part of a larger project to compare climate envelope models outputs that were generated using two types of predictor variables: expert opinion and statistical method (Brandt et al. 2017). The species masks, or model domains, were defined separately for each species using a variation of the “target-group” approach (Phillips et al. 2009), where the domain was determine using convex polygons including occurrence data for at least three phylogenetically related and similar species (Watling et al. 2012).
This dataset is separated into 15 zipped GeoTIFF rasters, each with its own metadata documentation. Spatial extent and descriptions in this document reflect the project as a whole and may not be indicative of the individual raster files. See their self-contained metadata for more information.
Species common names, scientific names, and species codes are as follows:
Cape Sable seaside sparrow, Ammodramus maritimus mirabilis - ammami
Florida grasshopper sparrow, Ammodramus savannarum floridanus - amsafl
Florida scrub jay, Aphelocoma coerulescens - apco 
piping plover, Charadrius melodus - chme 
eastern indigo snake, Drymarchon corais couperi - drcoco
whooping crane, Grus americana - gram 
wood stork, Mycteria americana - myam 
sand skink, Neoseps reynoldsi - nere
Key deer, Odocoileus virginianus clavium - odvicl
red-cockaded woodpecker, Picoides borealis - pibo 
Audubon’s crested caracara, Polyborus plancus audubonii - poplau 
Florida panther, Puma concolor coryi – pucoco
snail kite, Rostrhamus sociabilis plumbeus - rosopl 
roseate tern, Sterna dougallii dougallii - stdodo 
Lower Keys marsh rabbit, Sylvilagus palustris hefneri - sypahe
See metadata for references.

Tags: climate-adaptation, climate-change, conservation-planning, endangered-species, modelling-domain, spatial-mask, threatened-species, usgs-58580256e4b0e40e53c23757
Organization: Department of the Interior
Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 1975

Orthorectified image from aerial photograph of wetland P1 in the Cottonwood Lake Study Area, Stutsman County, North Dakota. This image is part of a collection of photographs of the study area acquired during July and early August from 1975 to 2015.

Tags: aerial-photography, chase-lake-wetland-management-districtgtstutsman-county-waterfowl-production-areagteddy, chase-lake-wetland-management-districtgtstutsman-county-waterfowl-production-areagtshuler, cottonwood-lake-study-area, earth-sciencegtbiospheregtecosystemsgtaquatic-ecosystemsgtwetlands, earth-sciencegtbiospheregtecosystemsgtterrestrial-ecosystemsgtwetlands, environment, image-collections, imagerybasemapsearthcover, inlandwaters, north-dakota, northern-great-plains, platformgtaerial-photographs, prairie-pothole-region, stutsman-county, surface-water-non-marine, united-states-of-america, usgs-58580450e4b0e40e53c23761, wetland-ecosystems
Organization: Department of the Interior
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Distribution of Phosphorus in Soil Horizons A and C and Geologic Mapping Units

This tabular data set represents the estimated distribution of Phosphorus (P) in the soil A and C horizons, milligrams per kilogram compiled for two spatial components of the NHDPlus version 2.1 data suite (hereto referred as NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID.  The source data is from the publication, Distribution of Phosphorus (P) in the soil A and C horizons, Terziotti, 2019). Units are milligrams per kilogram. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes cumulative upstream conditions.  Network-accumulated values are computed using two methods, 1) divergence-routed and 2) total cumulative drainage area. Both approaches use a modified routing database to navigate the NHDPlus reach network to aggregate (accumulate) the metrics derived from the reach catchment scale. (Schwarz and Wieczorek, 2016).

Tags: catchment, geologic-mapping-units, inlandwaters, nawqa, nhdplus, phosphorous, soil-horizon-a, soil-horizon-c, sparrow, usgs-58580f18e4b0e40e53c237a5
Organization: Department of the Interior
Corrosivity index and streamflow datasets used to evaluate trends in potentially corrosive source waters in the Nation's streams and rivers (output) (1992-2012)

Changes in water corrosivity from 84 river sites were investigated using long-term (1962 – 2016) data sets. Corrosive waters, often having elevated chloride (Cl) concentrations, can lead to metal leaching and promote corrosion in water distribution systems. Two different indices, the Chloride-Sulfate Mass Ratio (CSMR) and the Larson Ratio (LR), are commonly used to indicate the potential to promote corrosion in water distribution systems, with high values indicating an increase in the potential to promote corrosion. Though changes in treatment approaches at drinking water facilities are known to affect the corrosion indices, there is little information regarding how changes in the ionic composition of source waters may affect the corrosion indices. As part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program, long-term water-quality data from multiple sites across the Conterminous United States have been used to analyze seasonal- and flow-related variability and trends in the CSMR and LR indices.

Tags: chloride, corrosion-index, corrosivity, csmr, egret, larson, rivers, sulfate, trends, usgs-58584800e4b0e40e53c24128, usgsnawqatrends, weighted-regression, wrtds
Organization: Department of the Interior
Corrosivity index and streamflow datasets used to evaluate trends in potentially corrosive source waters in the Nation's streams and rivers (input) (1964-2016)

Changes in water corrosivity from 84 river sites were investigated using long-term (1962 – 2016) data sets. Corrosive waters, often having elevated chloride (Cl) concentrations, can lead to metal leaching and promote corrosion in water distribution systems. Two different indices, the Chloride-Sulfate Mass Ratio (CSMR) and the Larson Ratio (LR), are commonly used to indicate the potential to promote corrosion in water distribution systems, with high values indicating an increase in the potential to promote corrosion. Though changes in treatment approaches at drinking water facilities are known to affect the corrosion indices, there is little information regarding how changes in the ionic composition of source waters may affect the corrosion indices. As part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program, long-term water-quality data from multiple sites across the Conterminous United States have been used to analyze seasonal- and flow-related variability and trends in the CSMR and LR indices.

Tags: chloride, chloride-sulfate-mass-ratio, corrosion-index, corrosivity, csmr, larson-ratio, rivers, trends, usgs-58584859e4b0e40e53c2412f, usgsnawqatrends, weighted-regression
Organization: Department of the Interior
Topography data from the Elwha River delta, Washington, May 2011

This part of the data release presents topography data from the Elwha River delta collected in May 2011. Topography data were collected on foot with global navigation satellite system (GNSS) receivers mounted on backpacks.

Tags: bathymetry-and-elevation, clallum-county, elevation, elwha-river, global-positioning-system-gps-observations, gps-global-positioning-system, gps-measurement, olympic-peninsula, strait-of-juan-de-fuca, topography, usgs-58587859e4b0e40e53c241f6
Organization: Department of the Interior
Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P2 from 1975

Orthorectified image from aerial photograph of wetland P2 in the Cottonwood Lake Study Area, Stutsman County, North Dakota. This image is part of a collection of photographs of the study area acquired during July and early August from 1975 to 2015.

Tags: aerial-photography, chase-lake-wetland-management-districtgtstutsman-county-waterfowl-production-areagteddy, chase-lake-wetland-management-districtgtstutsman-county-waterfowl-production-areagtshuler, cottonwood-lake-study-area, earth-sciencegtbiospheregtecosystemsgtaquatic-ecosystemsgtwetlands, earth-sciencegtbiospheregtecosystemsgtterrestrial-ecosystemsgtwetlands, environment, image-collections, imagerybasemapsearthcover, inlandwaters, north-dakota, northern-great-plains, platformgtaerial-photographs, prairie-pothole-region, stutsman-county, surface-water-non-marine, united-states-of-america, usgs-5859501de4b03639a6025eed, wetland-ecosystems
Organization: Department of the Interior
Inventory of landslides triggered by the 1994 Northridge, California earthquake

This inventory was originally created by Harp and Jibson (1995) describing the landslides triggered by the M 6.7 Northridge, California earthquake that occurred on 17 January 1994 at 12:30:55 UTC. Care should be taken when comparing with other inventories because different authors use different mapping techniques. This inventory also could be associated with other earthquakes such as aftershocks or triggered events. Please check the author methods summary and the original data source for more information on these details and to confirm the viability of this inventory for your specific use.   With the exception of the data from USGS sources, the inventory data and associated metadata were not acquired by the U.S. Geological Survey (USGS) and thus have not been reviewed for accuracy and completeness by the USGS.  They are presented as part of this data series for convenience of the user only, as part of an effort to make published ground-failure inventories more accessible from a single aggregated site. No warranty, expressed or implied, is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.

Tags: california, earthquake, earthquake-hazards-program, earthquakes, ehp, geographic-informtion-system, geologic-hazards-science-center, ghsc, gis, global, ground-failure, groundfailure, inventory, landslide, landslides, landslides-hazards-program, lhp, north-america, secondary, secondary-hazards, usa, usgs, usgs-58595917e4b03639a6025f30
Organization: Department of the Interior
Plant biomass, carbon content, decomposition, and soil greenhouse gas fluxes to support carbon budget development for a created salt marsh in eastern North Carolina, USA

These data were collected from a small (14 ha), created salt marsh in Carteret County, North Carolina (34.82 deg. N; 76.61 deg. W). This site was created in 2007 following an engineering plan developed by Dr. Michael Burchell (NC-State University). This data collection was to support the development of a site-specific carbon budget. Data were collected from 2011 to 2013, or approximately 4-6 years post-creation. The data collection specifically funded by the U.S. Geological Survey includes plant carbon biomass, plant above ground biomass, plant below ground biomass, plant decomposition, and soil greenhouse gas fluxes, and these data are being made available. These data represent critical components of the carbon budget, and were previously missing from on-going study efforts focusing on other aspects of on-site carbon cycling. Other components of the carbon budget, for example dissolved and hydrological flux variables, were funded directly by North Carolina State University, and not included here.

Tags: brackish-water, environmental-restoration, estuarine-ecology, modern, root-zone, salt-marshes, soil-surface, usgs-5859649ce4b03639a6025f9a, year
Organization: Department of the Interior
Digital elevation models (DEMs) of the Elwha River delta, Washington, May 2011

This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in May 2011. Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey developed an integrated research program aimed at understanding the ecosystem responses following dam removal that included regular monitoring of coastal and nearshore bathymetry and topography. As part of this monitoring program, the USGS conducted a bathymetric and topographic survey in the Strait of Juan de Fuca on the Elwha River delta, Washington (USGS Field Activity Number W-04-11-PS). Bathymetry data were collected using two personal watercraft (PWCs), each equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with GNSS receivers mounted on backpacks. DEM surfaces were produced from all available elevation data using linear interpolation.

Tags: bathymetry, bathymetry-and-elevation, bathymetry-measurement, digital-elevation-models, echo-sounders, elevation, global-positioning-system-gps-observations, gps-global-positioning-system, gps-measurement, single-beam-echo-sounder, topographic-mapping, topography, usgs-58596818e4b03639a6025fa6, water-depth
Organization: Department of the Interior
Depth Contours, West Basin of Ashokan Reservoir, 2013 to 2014

From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps.  Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir.  A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment.  Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the form of triangulated irregular networks (TINs); the TINs were linearly enforced to better represent geomorphic features within the reservoirs.  The linearly enforced TINs were used to create bathymetric maps of the reservoirs; contours were mapped at 2-foot intervals and capacity was calculated at 0.01-foot intervals. This dataset contains the mapped contours at 2-ft depth intervals.

Tags: ashokan-reservoir, bathymetry, gps-measurement, single-beam-echo-sounder, ulster-county, usgs-5859738ce4b03639a6026005
Organization: Department of the Interior