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RISCycling the Representer Algorithm for Variational Data Assimilation with the Lorenz Attractor
Publisher: American Meteorological Society
Abstract: Realistic dynamic systems are often strongly nonlinear, particularly those for the ocean and atmosphere. Applying variational data assimilation to these systems requires a tangent linearization of the nonlinear dynamics ...
Multi-Spectral Extinction Measurements to Deduce the Complex Refractive Index and the Size Distribution of Aerosol Particles
Publisher: American Meteorological Society
Abstract: It is shown that high?precision extinction measurements over a spectral interval can he used to infer aerosol optical parameters including the, heretofore elusive, complex index of refraction, if aerosol particles in the ...
Genetic Algorithm–Genetic Programming Approach to Identify Hierarchical Models for Ultraviolet Disinfection Reactors
Publisher: American Society of Civil Engineers
Abstract: The performance of ultraviolet (UV) disinfection reactors using experimental data poses major challenges to the water treatment industry, and a regression model has been developed in the water treatment industry to predict ...
Rossby Waves in the Pacific Ocean Extracted from Geosat Altimeter Data
Publisher: American Meteorological Society
Abstract: Rossby waves have been detected in the northeast Pacific in time series of in situ hydrographic data, but the limited geographic coverage of such data has restricted the search for Rossby waves to small regions. Two years ...
Estimation of a Geoid Section across the Kuroshio*
Publisher: American Meteorological Society
Abstract: An estimate of the geoid across the Kuroshio Extension at its separation point from Japan is calculated through an analysis of coincident sea surface measurements from inverted echo sounders (IESs) and Topex/Poseidon (T/P). ...
Capturing a Layer Response during the Curing of Stabilized Earthwork Using a Multiple Sensor Lightweight Deflectometer
Publisher: American Society of Civil Engineers
Abstract: The lightweight deflectometer (LWD) is a portable device that measures surface deflections and applied force, from which dynamic stiffness and elastic modulus can be estimated. The inclusion of radial offset sensors with ...
Evaluation of Tides from TOPEX/Poseidon in the Bohai and Yellow Seas
Publisher: American Meteorological Society
Abstract: TOPEX/Poseidon (T/P) can provide accurate tide data in the Yellow and Bohai Seas. The accuracy of T/P as a measurement tool for tides in the coastal seas can be evaluated through comparison to data from in situ pressure ...
Global versus Local Simulation of Geotechnical Parameters for Tunneling Projects
Publisher: ASCE
Abstract: Urban soft-ground tunneling projects involve significant risks related to the spatial variability and uncertainty in geotechnical parameters. However, standard practice typically does not incorporate spatial trends into ...
Low-Frequency Current Observations in the Korea/Tsushima Strait
Publisher: American Meteorological Society
Abstract: High resolution, continuous current measurements made in the Korea/Tsushima Strait between May 1999 and March 2000 are used to examine current variations having time periods longer than 2 days. Twelve bottom-mounted acoustic ...
Drogue-Loss Detection for Surface Drifters during the Lagrangian Submesoscale Experiment (LASER)
Publisher: American Meteorological Society
Abstract: AbstractThe Lagrangian Submesoscale Experiment (LASER) was designed to study surface flows during winter conditions in the northern Gulf of Mexico. More than 1000 mostly biodegradable drifters were launched. The drifters ...