scholarly journals Observations of phase and intensity fluctuations for low-frequency, long-range transmissions in the Philippine Sea and comparisons to path-integral theory

2019 ◽  
Vol 146 (1) ◽  
pp. 567-585 ◽  
Author(s):  
John A. Colosi ◽  
Bruce D. Cornuelle ◽  
Matthew A. Dzieciuch ◽  
Peter F. Worcester ◽  
Tarun K. Chandrayadula
Keyword(s):  
Long Range ◽  
Path Integral ◽  
Low Frequency ◽  
Integral Theory ◽  
Philippine Sea ◽  
Intensity Fluctuations

Philippine Sea observations of acoustic transmission phase and intensity fluctuations and comparisons to path-integral theory

2019 ◽  
Vol 146 (4) ◽  
pp. 2986-2986
Author(s):  
John A. Colosi ◽  
Bruce Cornuelle ◽  
Matthew Dzieciuch ◽  
Peter F. Worcester ◽  
Tarun K. Chandrayadula
Keyword(s):  
Path Integral ◽  
Integral Theory ◽  
Acoustic Transmission ◽  
Philippine Sea ◽  
Intensity Fluctuations ◽  
Transmission Phase

scholarly journals Observations of low-frequency, long-range acoustic propagation in the Philippine Sea and comparisons with mode transport theory

2020 ◽  
Vol 147 (2) ◽  
pp. 877-897
Author(s):  
Tarun K. Chandrayadula ◽  
Sivaselvi Periyasamy ◽  
John A. Colosi ◽  
Peter F. Worcester ◽  
Matthew A. Dzieciuch ◽  
...  
Keyword(s):  
Long Range ◽  
Transport Theory ◽  
Low Frequency ◽  
Acoustic Propagation ◽  
Philippine Sea

Measured low frequency intensity fluctuations over a 107 km path in the 2009-2010 Philippine Sea experiment

2012 ◽  
Vol 131 (4) ◽  
pp. 3354-3354
Author(s):  
Andrew W. White ◽  
Rex K. Andrew ◽  
James A. Mercer ◽  
Peter F. Worcester ◽  
Matthew A. Dzieciuch
Keyword(s):  
Low Frequency ◽  
Philippine Sea ◽  
Intensity Fluctuations ◽  
Frequency Intensity

Wavefront statistics from measurements made in the Philippine Sea and comparisons to path integral theory

2012 ◽  
Vol 131 (4) ◽  
pp. 3353-3353
Author(s):  
Tarun K. Chandrayadula ◽  
John A. Colosi ◽  
Peter F. Worcester ◽  
Matthew Dzieciuch
Keyword(s):  
Path Integral ◽  
Integral Theory ◽  
Philippine Sea ◽  
Made In

Observations of low frequency, long range propagation in the Philippine Sea and comparisons with mode transport theory

2019 ◽  
Vol 146 (4) ◽  
pp. 2986-2986
Author(s):  
Tarun K. Chandrayadula ◽  
John A. Colosi ◽  
Peter F. Worcester ◽  
Matthew Dzieciuch ◽  
James Mercer ◽  
...  
Keyword(s):  
Long Range ◽  
Transport Theory ◽  
Low Frequency ◽  
Philippine Sea

Quantifying the Predictive Skill in Long-Range Forecasting. Part II: Model Error in Coarse-Grained Markov Models with Application to Ocean-Circulation Regimes

2012 ◽  
Vol 25 (6) ◽  
pp. 1814-1826 ◽  
Author(s):  
Dimitrios Giannakis ◽  
Andrew J. Majda
Keyword(s):  
Long Range ◽  
Ocean Circulation ◽  
Climate Models ◽  
Markov Models ◽  
Low Frequency ◽  
Model Error ◽  
Ocean Model ◽  
Coarse Grained ◽  
Predictive Skill ◽  
Relaxation To Equilibrium

Abstract An information-theoretic framework is developed to assess the predictive skill and model error in imperfect climate models for long-range forecasting. Here, of key importance is a climate equilibrium consistency test for detecting false predictive skill, as well as an analogous criterion describing model error during relaxation to equilibrium. Climate equilibrium consistency enforces the requirement that long-range forecasting models should reproduce the climatology of prediction observables with high fidelity. If a model meets both climate consistency and the analogous criterion describing model error during relaxation to equilibrium, then relative entropy can be used as an unbiased superensemble measure of the model’s skill in long-range coarse-grained forecasts. As an application, the authors investigate the error in modeling regime transitions in a 1.5-layer ocean model as a Markov process and identify models that are strongly persistent but their predictive skill is false. The general techniques developed here are also useful for estimating predictive skill with model error for Markov models of low-frequency atmospheric regimes.

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