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RISStrong Extratropical Impact on Observed ENSO
Publisher: American Meteorological Society
Subtropical Impact on the Tropical Double-ITCZ Bias in the GFDL CM2.1 Model
Publisher: American Meteorological Society
Error Covariance Estimation for Coupled Data Assimilation Using a Lorenz Atmosphere and a Simple Pycnocline Ocean Model
Publisher: American Meteorological Society
Abstract: oupled data assimilation uses a coupled model consisting of multiple time-scale media to extract information from observations that are available in one or more media. Because of the instantaneous exchanges of information ...
Assimilation of Surface Pressure Observations Using an Ensemble Filter in an Idealized Global Atmospheric Prediction System
Publisher: American Meteorological Society
Abstract: An ensemble filter data assimilation system is tested in a perfect model setting using a low resolution Held?Suarez configuration of an atmospheric GCM. The assimilation system is able to reconstruct details of the model?s ...
A Compensatory Approach of the Fixed Localization in EnKF
Publisher: American Meteorological Society
Abstract: hile fixed covariance localization can greatly increase the reliability of the background error covariance in filtering by suppressing the long-distance spurious correlations evaluated by a finite ensemble, it may degrade ...
Strongly Coupled Data Assimilation Using Leading Averaged Coupled Covariance (LACC). Part I: Simple Model Study
Publisher: American Meteorological Society
Abstract: his paper studies a new leading averaged coupled covariance (LACC) method for the strongly coupled data assimilation (SCDA). The SCDA not only uses the coupled model to generate the forecast and assimilate observations ...
Parameter Optimization in an Intermediate Coupled Climate Model with Biased Physics
Publisher: American Meteorological Society
Abstract: mperfect physical parameterization schemes in a coupled climate model are an important source of model biases that adversely impact climate prediction. However, how observational information should be used to optimize ...
Global Oceanic Overturning Circulation Forced by the Competition between Greenhouse Gases and Continental Ice Sheets during the Last Deglaciation
Publisher: American Meteorological Society
Multicycle Parameter Estimations in Coupled Earth System Models Based on Multiscale Sensitivity Responses in the Context of Low-Order Models
Publisher: American Meteorological Society
An Assessment of Convergence of Climate Reanalyses from Two Coupled Data Assimilation Systems with Identical High-Efficiency Filtering
Publisher: American Meteorological Society