Results 31 to 40 of about 42,645 (242)
Sample Augmentation Method for Side-Scan Sonar Underwater Target Images Based on CBL-sinGAN
Journal of Marine Science and EngineeringThe scarcity and difficulty in acquiring Side-scan sonar target images limit the application of deep learning algorithms in Side-scan sonar target detection.
Chengyang Peng +4 more
doaj +1 more source
A simple method for retrieving significant wave height from Dopplerized X-band radar [PDF]
Ocean Science, 2017 Retrieving spectral wave parameters such as the peak wave direction and wave period from marine radar backscatter intensity is very well developed.
R. Carrasco, M. Streßer, J. Horstmann
doaj +1 more source
Bias in Peak Flood Discharges: Are Our Bridges and Culverts Undersized?
River Research and Applications, EarlyView.ABSTRACT Reliable methods for peak discharge predictions at ungaged locations are required for infrastructure design and floodplain management. For decades, a standard practice in the United States has been to utilize US Geological Survey regional regression equations (StreamStats) as a singular method. However, implementation of multiple methods, such
Steven E. Yochum, Tyler Wible
wiley +1 more source
DBnet: A Lightweight Dual-Backbone Target Detection Model Based on Side-Scan Sonar Images
Journal of Marine Science and EngineeringDue to the large number of parameters and high computational complexity of current target detection models, it is challenging to perform fast and accurate target detection in side-scan sonar images under the existing technical conditions, especially in ...
Quanhong Ma +4 more
doaj +1 more source
GIS Characterization of Beaver Watershed [PDF]
, 1992 Beaver Reservoir watershed is located in Northwest Arkansas including portions of Madison, Washington, Benton, Carroll, Franklin and Crawford counties. This watershed is important to the Northwest Arkansas region because it supplies most of the drinking ...
McKimmey, J. M., Scott, H. D.
core +2 more sources
River Research and Applications, EarlyView.ABSTRACT Digital networks are virtual representations of freshwater systems that provide important inputs to, and mapping of, river classifications, simulation models, and quantitative data analyses for policy, planning, and management. Strahler order has often been used to characterize network configuration and as a proxy indicator of river channel ...
Doug Booker +3 more
wiley +1 more source
Journal of Marine Science and EngineeringThe speed of sound in seawater plays a crucial role in determining the accuracy of multibeam bathymetric measurements. In deep-sea multibeam measurements, the challenge of inadequate longitudinal coverage of sound speed profiles arises from variations in
Wei Zhang +4 more
doaj +1 more source
Airborne Fraunhofer Line Discriminator [PDF]
, 1969 Airborne Fraunhofer Line Discriminator enables prospecting for fluorescent materials, hydrography with fluorescent dyes, and plant studies based on fluorescence of chlorophyll.
Gabriel, F. C., Markle, D. A.
core +1 more source
Wildlife Biology, EarlyView.Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley +1 more source
Size‐based regulation and water quality: Evidence from the Iowa hog industry
American Journal of Agricultural Economics, EarlyView.Abstract The growing prevalence of animal feeding operations (AFOs) in the United States raises concerns among the public and regulators about their impact on local environmental quality. By linking historical regulatory records of AFOs in Iowa to downstream surface water pollution monitors, this paper studies the effects of the 2003 Clean Water Act ...
Chen‐Ti Chen +3 more
wiley +1 more source