Publications
Filter Total Items: 7540
Effect of wave-current interaction on wind-driven circulation in narrow, shallow embayments Effect of wave-current interaction on wind-driven circulation in narrow, shallow embayments
The effect of wind waves on the steady wind-driven circulation in a narrow, shallow bay is investigated with a two-dimensional (y, z) circulation model and the Grant and Madsen [1979] bottom-boundary layer model, which includes wave-current interaction. A constant wind stress is applied in the along-channel x direction to a channel with a constant cross-sectional profile h(y). The wind...
Authors
Richard P. Signell, Robert C. Beardsley, H. C. Graber, A. Capotondi
Integration of COCORP deep reflection and magnetic anomaly analysis in the southeastern United States: Implications for origin of the Brunswick and East Coast magnetic anomalies: Alternative interpretation and reply Integration of COCORP deep reflection and magnetic anomaly analysis in the southeastern United States: Implications for origin of the Brunswick and East Coast magnetic anomalies: Alternative interpretation and reply
Integration of magnetic anomaly analysis with COCORP deep reflection data from the southeastern United States provides three new constraints on the interpretation of the Brunswick and East Coast magnetic anomalies, as well as on the reflection data. These are as follows. (1) The source of the Brunswick anomaly lies within the deep crust. This anomaly is not caused by a Mesozoic rift...
Authors
Deborah R. Hutchinson, Kim D. Klitgord, Anne M. Trehu, John H. McBride, Kim Nelson
IGRFGRID : a program for creation of a total magnetic field (International Geomagnetic Reference Field) grid representing the earth's main magnetic field, Part B - Source code IGRFGRID : a program for creation of a total magnetic field (International Geomagnetic Reference Field) grid representing the earth's main magnetic field, Part B - Source code
No abstract available.
Authors
Ronald E. Sweeney
A numerical study of some potential sources of error in side-by-side seismometer evaluations A numerical study of some potential sources of error in side-by-side seismometer evaluations
This report presents the results of a series of computer simulations of potential errors in test data, which might be obtained when conducting side-by-side comparisons of seismometers. These results can be used as guides in estimating potential sources and magnitudes of errors one might expect when analyzing real test data. First, the derivation of a direct method for calculating the...
Authors
L. Gary Holcomb
Young volcanic deposits in the Valles Marineris, Mars? Young volcanic deposits in the Valles Marineris, Mars?
A study of the interior deposits of the central Valles Marineris has led to the discovery of a sequence of deposits that cover the chasma floors and range in thickness from that of thin dust to several kilometers. The emplacement of the deposits was the last major event in the history of the Valles Marineris, following deposition of older layered interior beds, warping, faulting, erosion...
Authors
Baerbel K. Lucchitta
Crustal structure of the northwestern Basin and Range Province from the 1986 Program for Array Seismic Studies of the Continental Lithosphere Seismic Experiment Crustal structure of the northwestern Basin and Range Province from the 1986 Program for Array Seismic Studies of the Continental Lithosphere Seismic Experiment
A portion of northwestern Nevada was imaged to determine the crustal structure and to assess reported differences between refraction versus reflection determinations of Moho depth and how the crustal composition and structure has been influenced by volcanic and extension mechanisms. Interpretation of the refraction/wide-angle reflection data suggests that the crust is fairly uniform in...
Authors
Harley M. Benz, R. B. Smith, Walter D. Mooney
Small domes on Venus: Probable analogs of Icelandic lava shields Small domes on Venus: Probable analogs of Icelandic lava shields
On the basis of observed shapes and volumetric estimates, we interpret small, dome-like features on radar images of Venus to be analogs of Icelandic lava-shield volcanoes. Using morphometric data for venusian domes in Aubele and Slyuta (in press), as well as our own measurements of representative dome volumes and areas from Tethus Regio, we demonstrate that the characteristic aspect...
Authors
James B. Garvin, Richard S. Williams
High-energy carbonate-sand accumulation, the Quicksands, southwest Florida Keys High-energy carbonate-sand accumulation, the Quicksands, southwest Florida Keys
High-resolution seismic-reflection profiles of the Quicksands, located along a broad ridge on the platform shelf west of Key West, Florida, indicate a significant deposit of non-oolitic carbonate sand occurs in a belt 47 km long by 28 km wide. The surface of the belt is ornamented by large (5 m), migrating tidal bars, oriented in a north-south direction, on which sand waves, oriented in...
Authors
Eugene A. Shinn, Barbara H. Lidz, Charles W. Holmes
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1990 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1990
No abstract available.
Authors
John B. Townshend, Richard V. O’Connell, Carol Ann Varner
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1990 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1990
No abstract available.
Authors
John B. Townshend, Richard V. O’Connell, Carol Ann Varner
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1990 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1990
No abstract available.
Authors
John B. Townshend, Richard V. O’Connell, Carol Ann Varner