Studies of auditory information processing emphasizing the application of signal detectability theory to the auditory sensory responses Semiannual report, 1 Dec. 1965 - 31 May 1966 and eighth quarterly status report, 1 Mar. - 31 May 1966

Free response to auditory signal detection, signal fading rate on energy band detector for electric ear model, and brightness adaptation research project

Stimulus-oriented Approach to Detection Re-examined

Effect of signal duration on detection in presence of continuous masking nois

Conduct Studies of Auditory Information Processing Emphasizing the Application of Signal Detectability Theory to the Auditory Sensory Responses Semiannual Report, 1 Jun. - 30 Nov. 1967, Quarterly Status Report, 1 Sep. - 30 Nov. 1967

Visual and auditory signal responses, including chromatic adaptation, binaural and monaural phenomena, and other psychophysiological dat

Studies of auditory information processing emphasizing the application of signal detectability theory to the auditory sensory responses Fifth quarterly progress report, 1 Jun. - 31 Aug. 1965

Signal detection of auditory sensory responses to stimuli - auditory information processin

Studies of auditory information processing emphasizing the application of signal detectability theory to the auditory sensory responses Semiannual report, 1 Dec. 1964 - 31 May 1965 and quarterly status report, 1 Mar. - 31 May 1965

Noise suppressor effect on signal detection and response speed and accuracy to sensory stimulation

Effect of signal duration on detection for gated and for continuous noise

Effect of signal duration on detection for gated and continuous nois

Conduct studies of auditory information processing emphasizing the application of signal detectability theory to the auditory sensory responses Semiannual report /sixth quarterly status report/, 1 Jun. - 30 Nov. 1965

Auditory information processing studies applying signal detectability theory to auditory sensory response

Importance of coastal change variables in determining vulnerability to sea- and lake-level change

This paper is not subject to U.S. copyright. The definitive version was published in Journal of Coastal Research 26 (2010): 176-183, doi:10.2112/08-1102.1.In 2001, the U.S. Geological Survey began conducting scientific assessments of coastal vulnerability to potential future sea- and lake-level changes in 22 National Park Service sea- and lakeshore units. Coastal park units chosen for the assessment included a variety of geological and physical settings along the U.S. Atlantic, Pacific, Gulf of Mexico, Gulf of Alaska, Caribbean, and Great Lakes shorelines. This research is motivated by the need to understand and anticipate coastal changes caused by accelerating sea-level rise, as well as lake-level changes caused by climate change, over the next century. The goal of these assessments is to provide information that can be used to make long-term (decade to century) management decisions. Here we analyze the results of coastal vulnerability assessments for several coastal national park units. Index-based assessments quantify the likelihood that physical changes may occur based on analysis of the following variables: tidal range, ice cover, wave height, coastal slope, historical shoreline change rate, geomorphology, and historical rate of relative sea- or lake-level change. This approach seeks to combine a coastal system's susceptibility to change with its natural ability to adapt to changing environmental conditions, and it provides a measure of the system's potential vulnerability to the effects of sea- or lake-level change. Assessments for 22 park units are combined to evaluate relationships among the variables used to derive the index. Results indicate that Atlantic and Gulf of Mexico parks have the highest vulnerability rankings relative to other park regions. A principal component analysis reveals that 99% of the index variability can be explained by four variables: geomorphology, regional coastal slope, water-level change rate, and mean significant wave height. Tidal range, ice cover, and historical shoreline change are not as important when the index is evaluated at large spatial scales (thousands of kilometers)

Current subsidence rates due to compaction of Holocene sediments in southern Louisiana

This paper is not subject to U.S. copyright. The definitive version was published in Geophysical Research Letters 33 (2006): L11403, doi:10.1029/2006GL026300.Relative contributions of geologic and anthropogenic processes to subsidence of southern Louisiana are vigorously debated. Of these, shallow sediment compaction is often considered dominant, although this has never been directly observed or effectively demonstrated. Quantitative understanding of subsidence is important for predicting relative sea level rise, storm surge flooding due to hurricanes, and for successful wetland restoration. Despite many shallow borings, few appropriate stratigraphic and geotechnical data are available for site-specific calculations. We overcome this by determining present compaction rates from Monte Carlo simulations of the incremental sedimentation and compaction of stratigraphies typical of the Holocene of southern Louisiana. This approach generates distributions of present compaction rates that are not expected to exceed 5 mm/yr, but may locally. Locations with present subsidence rates greater than the predicted maximum probable shallow compaction rates are likely influenced by additional processes

Focus on stochastic flows and climate statistics

The atmosphere and ocean are examples of dynamical systems that evolve in accordance with the laws of physics. Therefore, climate science is a branch of physics that is just as valid and important as the more traditional branches, which include particle physics, condensed-matter physics, and statistical mechanics. This 'focus on' collection of New Journal of Physics brings together original research articles from leading groups that advance our understanding of the physics of climate. Areas of climate science that can particularly benefit from input by physicists are emphasised. The collection brings together articles on stochastic models, turbulence, quasi-linear approximations, climate statistics, statistical mechanics of atmospheres and oceans, jet formation, and reduced-form climate models. The hope is that the issue will encourage more physicists to think about the climate problem