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Publications

These publications showcase the significant science conducted in our Science Centers.

Filter Total Items: 16731

Erosion, weathering, and sedimentation Erosion, weathering, and sedimentation

This chapter explains how a variety of nuclides have been applied to catchments throughout the world. One of the most exciting new approaches for quantifying the rate at which catchments erode is the measurement of in situ produced cosmogenic nuclides. The commonly applied nuclides for erosion rate measurements are 3He, 10Be, 26A1, and 36C1. Use of such nuclides was restricted to...
Authors
Paul R. Bierman, Achim Albrecht, Michael H. Bothner, Erik Thorson Brown, Thomas D. Bullen, Leda-Beth Gray, Laurent Turpin

Oxic limestone drains for treatment of dilute, acidic mine drainage Oxic limestone drains for treatment of dilute, acidic mine drainage

Limestone treatment systems can be effective for remediation of acidic mine drainage (AMD) that contains moderate concentrations of dissolved O2 , Fe3+ , or A13+ (1‐5 mg‐L‐1 ). Samples of water and limestone were collected periodically for 1 year at inflow, outflow, and intermediate points within underground, oxic limestone drains (OLDs) in Pennsylvania to evaluate the transport of...
Authors
Charles A. Cravotta

Ground-water age and atmospheric tracers: Simulation studies and analysis of field data from the Mirror Lake site, New Hampshire Ground-water age and atmospheric tracers: Simulation studies and analysis of field data from the Mirror Lake site, New Hampshire

The use of environmental tracers in characterization of ground-water systems is investigated through mathematical modeling of ground-water age and atmospheric tracer transport, and by a field study at the Mirror Lake site, New Hampshire. Theory is presented for modeling ground-water age using the advective-dispersive transport equation. The transport equation includes a zero-order source...
Authors
Daniel J. Goode

Mapping U.S. continental shelves Mapping U.S. continental shelves

No abstract available.
Authors
J.V. Gardner, Bradford Butman, L. A. Mayer, J.H. Clarke

Estimation of tiger densities in India using photographic captures and recaptures Estimation of tiger densities in India using photographic captures and recaptures

The tiger (Panthera tigris) is an endangered, large felid whose demographic status is poorly known across its distributional range in Asia. Previously applied methods for estimating tiger abundance, using total counts based on tracks, have proved unreliable. Lack of reliable data on tiger densities not only has constrained our ability to understand the ecological factors shaping...
Authors
K. Ullas Karanth, James D. Nichols

Are adult nonbreeders prudent parents? The kittiwake model Are adult nonbreeders prudent parents? The kittiwake model

Understanding evolutionary consequences of intermittent breeding (nonbreeding in individuals that previously bred) requires investigation of the relationships between adult breeding state and two demographic parameters: survival probability and subsequent breeding probability. One major difficulty raised by comparing the demographic features of breeders and nonbreeders as estimated from...
Authors
Emmanuelle Cam, James E. Hines, J. #NAME? Monnat, James D. Nichols, Etienne Danchin

Preliminary paleontologic report on core 37 from Pass Key, Everglades National Park, Florida Bay Preliminary paleontologic report on core 37 from Pass Key, Everglades National Park, Florida Bay

Sediments from Pass Key core 37, in eastern Florida Bay (N 25.1478, W 80.5745) record a history of rapid sedimentation during this century. The lowest portion of the core contains benthic fauna indicative of relatively low salinities and sparse seagrass coverage. This period is followed by an increase in salinity and seagrass. In the middle portion of the core, a slight decrease in...
Authors
G. L. Brewster-Wingard, S. E. Ishman, N.J. Waibel, Debra A. Willard, Lucy E. Edwards, C. W. Holmes

New Jersey Tide Telemetry System New Jersey Tide Telemetry System

Each summer the population of the barrier-island communities of New Jersey increases by tens of thousands. When a hurricane threatens these communities, the few bridges and causeways that connect the islands with the mainland become overcrowded, making evacuations from the barrier islands to the mainland difficult. Timely evacuation depends on well defined emergency evacuation plans used...
Authors
William M. Summer

Somerset County Flood Information System Somerset County Flood Information System

Introduction The timely warning of a flood is crucial to the protection of lives and property. One has only to recall the flood of August 2, 1973, in Somerset County, New Jersey, in which six lives were lost and major property damage occurred, to realize how unexpected and costly, especially in terms of human life, a flood can be. Accurate forecasts and warnings cannot be made, however...
Authors
William M. Summer
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