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An Adaptive Nonlinear MOS Scheme for Precipitation Forecasts Using Neural Networks
Publisher: American Meteorological Society
Abstract: A novel neural network (NN)?based scheme performs nonlinear model output statistics (MOS) for generating precipitation forecasts from numerical weather prediction (NWP) model output. Data records from the past few weeks ...
Nonlinear Canonical Correlation Analysis of the Tropical Pacific Climate Variability Using a Neural Network Approach
Publisher: American Meteorological Society
Abstract: Recent advances in neural network modeling have led to the nonlinear generalization of classical multivariate analysis techniques such as principal component analysis and canonical correlation analysis (CCA). The nonlinear ...
Observations of Continental Shelf Waves off Oregon and Washington
Publisher: American Meteorological Society
Abstract: The low-frequency current fluctuations on the Oregon shelf changed dramatically from winter to spring, 1975. A much faster offshore energy decay occurred simultaneously with a sharp decrease in the alongshore propagation ...
On the Detection of Continental Shelf Waves
Publisher: American Meteorological Society
Abstract: Given equal amounts of kinetic energy near the coast, different shelf wave modes (at the same frequency) have different magnitudes of sea-level oscillations?the magnitudes decrease with increasing mode number. Hence, an ...
Modal Bias in Sea Level and Sea Surface Temperature, with Applications to Remote Sensing
Publisher: American Meteorological Society
Abstract: From vertical normal mode decomposition, sea level and sea surface temperature (SST) are shown to be modally biased?higher modes are suppressed in sea level while lower modes are suppressed in SST data. Having been effectively ...
Changes in ENSO and Associated Overturning Circulations from Enhanced Greenhouse Gases by the End of the Twentieth Century
Publisher: American Meteorological Society
Abstract: With data from 12 coupled models in the Fourth Assessment Report (AR4) of the Intergovernmental Panel on Climate Change (IPCC), climate under year 2000 greenhouse gas (GHG) + aerosol forcing was compared with climate under ...
Coupling Neural Networks to Incomplete Dynamical Systems via Variational Data Assimilation
Publisher: American Meteorological Society
Abstract: The advent of the feed-forward neural network (N) model opens the possibility of hybrid neural?dynamical models via variational data assimilation. Such a hybrid model may be used in situations where some variables, difficult ...
Applying Neural Network Models to Prediction and Data Analysis in Meteorology and Oceanography
Publisher: American Meteorological Society
Abstract: Empirical or statistical methods have been introduced into meteorology and oceanography in four distinct stages: 1) linear regression (and correlation), 2) principal component analysis (PCA), 3) canonical correlation ...
Resonant Interactions between Shelf Waves, with Applications to the Oregon Shelf
Publisher: American Meteorological Society
Abstract: From the inviscid, unforced, barotropic long-wave equations for a rotating system, it is shown that resonant interactions between three continental shelf waves can occur. Evolution equations governing the amplitude and the ...
The Influence of Buoyancy Flux from Estuaries on Continental Shelf Circulation
Publisher: American Meteorological Society
Abstract: The release of freshwater from a midlatitude estuary to the continental shelf is modeled numerically as a Rossby adjustment problem using a primitive equation model. As the initial salinity front is relaxed, a first ...