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All Data

Explore all data by the topics and refine type to find the digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.

Filter Total Items: 13191

MODFLOW2005 model used to simulate the effects of groundwater withdrawals from aquifers in Ocean County and vicinity, New Jersey

A three-dimensional groundwater flow model was developed to simulate the effects of withdrawals on the groundwater-flow systems of five aquifers in and around Ocean County, New Jersey-the unconfined Kirkwood-Cohansey aquifer system and Vincentown aquifer, and three confined aquifers--the Rio Grande water-bearing zone, the Atlantic City 800-foot sand, and the Piney Point aquifer. A transient model

Identifying Kittlitz's Murrelet nesting habitat in North America at the landscape scale

The Kittlitz's Murrelet (Brachyramphus brevirostris) is a small, non-colonial seabird endemic to marine waters of Alaska and eastern Russia that may have experienced significant population decline in recent decades, in part because of low reproductive success and terrestrial threats. Although recent studies have shed new light on Kittlitz's Murrelet nesting habitat in a few discrete areas, the loc

Water-surface elevations, depths, velocities, and temperature data collected for the NASA/JPL AirSWOT campaign on the Sacramento River, near Colusa, CA, for the period March May, 2015

This field dataset of water-surface elevations, depths, velocities and temperatures was collected in March - May 2015 along the Sacramento River, near Colusa, CA. The dataset contains data from several different sources, including stationary continuously-measuring pressure transducers, high-speed longitudinal profiles of water-surface elevations measured from a power-boat, and cross section and lo

EAARL Coastal Topography-Louisiana, Mississippi and Alabama, March 2006

This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a March 14-15, 2006 airborne lidar survey for the Chandeleur Islands, Louisiana, and Ship Island, Mississippi through Orange Beach, Alabama. Elevation measurements were collected over the area using the National Aeronautics and Space

Locatable Mineral Assessment Tracts for the U.S. Geological Survey Sagebrush Mineral Resource Assessment Project

The polygon (vector) feature class represents locatable mineral resource assessment tracts (tracts of land) associated with the Department of the Interior (DOI) Sagebrush Focal Areas in Montana, Wyoming and Utah, central Idaho, and the Oregon-Nevada-Idaho border area. The mineral resources tracts are geographic areas that were assessed by the U.S. Geological Survey (USGS) and were determined to be

Data Release for: Empirical Models for Estimating Baseline Streamflows in California and their Likelihood of Anthropogenic Modification

The dataset contain estimates of natural monthly streamflow for 135,118 stream segments in California, USA, from 1950 to 2012. Segments are identified per the medium resolution National Hydrography Dataset (NHD), Version 1. The dataset also contains observed monthly streamflows and estimates of natural monthly streamflows for 894 USGS stream gages in California, USA.

EAARL Coastal Topography-Louisiana, Alabama, and Florida, 2008: First Return Elevation Data

This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a June 24, 2008 airborne lidar survey for the Chandeleur Islands, LA, Dauphin Island, AL, Santa Rosa Island, FL, and Bon Secour, AL. Elevation measurements were collected over the area using the National Aeronautics and Space Administ

EAARL-B Topography-Suncook River, New Hampshire, 5-6 November 2013: Seamless (Bare Earth and Submerged)

This point-cloud dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides lidar-derived seamless (bare earth and submerged) topography for a portion of the Suncook River in New Hampshire. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on November 5 and 6, 2013, in cooperation wi

Chemicals of Emerging Concern and Fish Biological Endpoints Data Collected From Select Tributaries of the St. Croix River, Minnesota and Wisconsin, 2011-12

The U.S. Geological Survey, National Park Service, St. Cloud State University, and the University of St. Thomas conducted a cooperative study to investigate the occurrence of chemicals of emerging concern (CECs) and potential effects to aquatic biota in select tributaries of the St. Croix River in Minnesota and Wisconsin. In 2011, treated wastewater effluent samples were collected from 22 sites in

Nitrogen, Phosphorus, and Suspended-Sediment Loads and Trends measured in Nine Chesapeake Bay Tributaries: Water Years 1985-2015

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the nine Chesapeake Bay River Input Monitoring (RIM) stations for the period 1985 through 2015. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weig

EAARL Coastal Topography-Louisiana, Mississippi and Alabama, September 2006: First and Last Return Elevation Data

This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a September 20-22, 2006 airborne lidar survey for the Chandeleur Islands, Louisiana, and Cat Island, Mississippi, through Dauphin Island, Alabama. Elevation measurements were collected over the area using the National Aeronautics and

Alaska Digitize Project

Processing methodology for the seafloor substrate data required multiple steps to georegister, digitize, clean, and validate the datasets. Sediments such as gravel, sand, and mud were available as verbal notations on the smooth sheets and the data on any one smooth sheet were digitized by one person and then proofed by another. Once the locations of the sediment point data were collected and notat