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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Old Seismic bulletins to 1920: A collective heritage from early seismologists
This chapter focuses on collective heritage from early seismologists. Scientists began systematic instrumental observation of earthquakes in the latter part of the 19 th century. Several authors describe the history of the development of an adequate instrumentation for seismology. In the 1880s, scientists in Italy, Japan, and Germany began to record more or less continuously the ground motion with
Authors
Johannes Schweitzer, W.H.K. Lee
JUPITER project—Merging inverse problem formulation technologies
No abstract available.
Authors
Mary C. Hill, Eileen Poeter, John Doherty, Edward R. Banta, Justin Babendreier
Glossary of interest to earthquake and engineering seismologists
No abstract available.
Authors
K. Aki, William H. K. Lee
GHASTLI — Determining physical properties of sediment containing natural and laboratory-formed gas hydrate
Gas-hydrate samples have been recovered at about 16 areas worldwide (Booth et al., 1996). However, gas hydrate is known to occur at about 50 locations on continental margins (Kvenvolden, 1993) and is certainly far more widespread so it may represent a potentially enormous energy resource (Kvenvolden, 1988). But adverse effects related to the presence of hydrate do occur. Gas hydrate appears to hav
Authors
William J. Winters, William P. Dillon, Ingo A. Pecher, David H. Mason
Introduction to physical properties and elasticity models
Estimating the in situ methane hydrate volume from seismic surveys requires knowledge of the rock physics relations between wave speeds and elastic moduli in hydrate/sediment mixtures. The elastic moduli of hydrate/sediment mixtures depend on the elastic properties of the individual sedimentary particles and the manner in which they are arranged. In this chapter, we present some rock physics data
Authors
Jack Dvorkin, Michael B. Helgerud, William F. Waite, Stephen H. Kirby, Amos Nur
The U.S. Atlantic continental margin: The best-known gas hydrate locality
One of the few attempts to date to map gas hydrate over a large area has been made on the Atlantic continental margin of the United States (Dillon et al., 1993, 1994, 1995). This work has resulted in the production of an extensive data base of seismic reflection lines including both single and multichannel lines, and complete GLORIA sidescan sonar coverage. This work was part of the assessment of
Authors
William P. Dillon, Michael D. Max
Effects of land subsidence in the Greater Houston Area
No abstract available.
Authors
Devin L. Galloway, Laura S. Coplin, Steven E. Ingebritsen
Using sensitivity analysis in model calibration efforts
In models of natural and engineered systems, sensitivity analysis can be used to assess relations among system state observations, model parameters, and model predictions. The model itself links these three entities, and model sensitivities can be used to quantify the links. Sensitivities are defined as the derivatives of simulated quantities (such as simulated equivalents of observations, or mode
Authors
Claire R. Tiedeman, Mary C. Hill
Unique and exceptionally long interglacial marine isotope stage 11: window into Earth warm future climate
No abstract available.
Authors
André Droxler, Richard B. Alley, William R. Howard, Richard Z. Poore, Lloyd H. Burckle
Geomorphic effects in levee-break complexes and implications for flood-damage assessment: Chapter 3.5
No abstract available.
Authors
Robert B. Jacobson