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Standard and conventional atomic weights 2016 abridged to four significant digits

To indicate that atomic weights of many elements are not constants of nature, in 2009 and 2011 the Commission on Isotopic Abundances and Atomic Weights (CIAAW) of the International Union of Pure and Applied Chemistry (IUPAC) replaced single-value standard atomic weight values with atomic weight intervals for 12 elements (hydrogen, lithium, boron, carbon, nitrogen, oxygen, magnesium, silicon, sulfu

West Africa Land Use Land Cover Time Series

This series of three-period land use land cover (LULC) 2-kilometer resolution datasets (1975, 2000, and 2013) aids in monitoring change in West Africa’s land resources (exceptions: Capo Verde at 500 meters, the Gambia at 1 kilometer and Tchad at 4 kilometers). To monitor and map these changes, a 26 general LULC class system was used. The classification system that was developed was primarily inspi

Four-place table of standard atomic weight values of hydrogen through uranium compared since 1961

Four-figure standard atomic weights of the chemical elements are shown for 1961, 1975, 1983, 2007, 2009, 2011, 2013, 2015, and the current value for 2016. Values between 1975 and 2015 are only shown when there is a change in value with respect to the previous column.

3D point cloud data from laser scanning along the 2014 South Napa Earthquake surface rupture (2016)

Point cloud data in .laz format collected using a 3D laser scanner in Napa California in 2014 and 2015. Also included are aligned airborne laser scanner data from 2003 and 2014.

Groundwater Conditions on Long Island, New York in 2010

USGS online mapper for water-table altitude, and potentiometric surface of the Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, NY, in 2010.

Data for evaluating the Sr/Ca temperature proxy with in-situ temperature in the western Atlantic coral Siderastrea siderea

Massive corals are used as environmental recorders throughout the tropics and subtropics to study environmental variability during time periods preceding ocean-observing instrumentation. However, careful testing of paleoproxies is necessary to validate the environmental-proxy record throughout a range of conditions experienced by the recording organisms. As part of the USGS Coral Reef Ecosystems S

Groundwater Conditions on Long Island, New York in 2013

USGS online mapper for water-table altitude, and potentiometric surface of the Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, NY, in 2013.

Model climate scenario output Taunton and Sudbury river basins, Massachusetts, 2036-2065 change from 1975-2004, Representative Concentration Pathways 4.5 and 8.5

This data release provides a set of Hydrological Simulation Program--Fortran (HSPF) model files representing 5 EPA-selected future climate change scenarios for each of two river basins: Taunton and Sudbury, in Massachusetts. Output from these models are intended for use as input to EPA Watershed Management Optimization Support Tool (WMOST) modeling. Climate scenarios, based on 2036-2065 change fro

Upstate New York Surficial Aquifer Viewer

Map view of over 30 sand and gravel aquifers in upstate New York (Note: Zoom-in to purple-shaded areas for detailed 1:24,000 scale aquifer maps. Use the Map Identify tool, "i", to display links to related on-line reports.)

Nearshore waves in southern California: hindcast, and modeled historical and 21st-century projected time series

As part of the Coastal Storm Modeling System (CoSMoS), time series of hindcast, historical, and 21st-century nearshore wave parameters (wave height, period, and direction) were simulated for the southern California coast from Point Conception to the Mexican border. The hindcast (1980-2010) time series represents reanalysis-forced offshore waves propagated to the nearshore, whereas the historical (

Delineation of Water Bodies in Emergent Wetlands in Coastal New Jersey

Hurricane Sandy, which made landfall on October 29, 2012, near Brigantine, New Jersey, had a significant impact on coastal New Jersey, including the large areas of emergent wetlands at Edwin B. Forsythe National Wildlife Refuge (NWR) and the Barnegat Bay region. In response to Hurricane Sandy, U.S. Geological Survey (USGS) has developed new applications for pre- and post-Hurricane Sandy regional l

Forecasting tidal marsh elevation and habitat change through fusion of Earth observations and a process model

Regional models of tidal marsh elevation response to sea-level rise are needed to support coastal climate change adaptation decisions, including those related to land use planning, habitat management and infrastructure design. The Marsh Equilibrium Model (MEM) is a one-dimensional mechanistic elevation model that incorporates feedbacks of organic and inorganic inputs within the tidal frame to proj
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