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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

Filter Total Items: 5519

Evolving plans for the USA National Phenology Network Evolving plans for the USA National Phenology Network

[No abstract available]
Authors
J.L. Betancourt, M.D. Schwartz, D.D. Breshears, C.A. Brewer, G. Frazer, J.E. Gross, S.J. Mazer, B. C. Reed, B.E. Wilson

Exploring rippled scour depressions offshore Huntington Beach, CA Exploring rippled scour depressions offshore Huntington Beach, CA

Morphological model computations based on uniform (non-graded) sediment revealed an unrealistically strong scour of the sea floor in the immediate vicinity to the west of Maasvlakte 2. By means of a state-of-the-art graded sediment transport model the effect of natural armouring and sorting of bed material on the scour process has been examined. Sensitivity computations confirm that the
Authors
Eleyne L. Phillips, Curt D. Storlazzi, Peter Dartnell, Brian D. Edwards
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program

Extensive hydrothermal rock alteration in a low pH, steam-heated environment--Hot Springs Basin, Yellowstone National Park Extensive hydrothermal rock alteration in a low pH, steam-heated environment--Hot Springs Basin, Yellowstone National Park

No abstract available.
Authors
S. Hurwitz, J. B. Lowenstern, D. Bergfeld, C. Werner, H. Heasler, C. Jaworowski
By
Natural Hazards Mission Area, Volcano Hazards Program, Volcano Science Center

Field evaluation of shallow-water acoustic doppler current profiler discharge measurements Field evaluation of shallow-water acoustic doppler current profiler discharge measurements

In 2004, the U.S. Geological Survey (USGS) Office of Surface Water staff and USGS Water Science employees began testing the StreamPro, an acoustic Doppler current profiler (ADCP) for shallow-water discharge measurements. Teledyne RD Instruments introduced the StreamPro in December of 2003. The StreamPro is designed to make a "moving boat" discharge measurement in streams with depths...
Authors
M.S. Rehmel

Genetic algorithm based adaptive neural network ensemble and its application in predicting carbon flux Genetic algorithm based adaptive neural network ensemble and its application in predicting carbon flux

To improve the accuracy in prediction, Genetic Algorithm based Adaptive Neural Network Ensemble (GA-ANNE) is presented. Intersections are allowed between different training sets based on the fuzzy clustering analysis, which ensures the diversity as well as the accuracy of individual Neural Networks (NNs). Moreover, to improve the accuracy of the adaptive weights of individual NNs, GA is...
Authors
Y. Xue, S. Liu, Y. Hu, J. Yang, Q. Chen
By
Earth Resources Observation and Science (EROS) Center

Genetic markers and the coregonid problem Genetic markers and the coregonid problem

Coregonid fishes are the forage base in many ecosystems in the northern hemisphere and they have traditionally been part of commercial and native fisheries. Coregonids display extreme variability in morphology, life history, and behavior. Defining boundaries among coregonid taxa has been (and continues to be) the focus of many studies. Cytogenetic, biochemical, and molecular methods have...
Authors
W. Stott, T. N. Todd
By
Ecosystems Mission Area, Great Lakes Science Center
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