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

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

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

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.

Low-frequency vibrational spectroscopy: a new tool for revealing crystalline magnetic structures in iron phosphate crystals

2021 ◽  
Vol 23 (39) ◽  
pp. 22241-22245
Author(s):  
Zihui Song ◽  
Xudong Liu ◽  
Anish Ochani ◽  
Suling Shen ◽  
Qiqi Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Long Range ◽  
Vibrational Spectroscopy ◽  
Strong Dependence ◽  
Low Frequency ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Promising Material ◽  
Vibrational Dynamics ◽  
Magnetic Structures

In this report, the strong-dependence of low-frequency (terahertz) vibrational dynamics on weak and long-range forces in crystals is leveraged to determine the bulk magnetic configuration of iron phosphate – a promising material for cathodes in lithium ion batteries.

scholarly journals Low-frequency discrete breathers in long-range systems without on-site potential

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
Yoshiyuki Y. Yamaguchi ◽  
Yusuke Doi
Keyword(s):  
Long Range ◽  
Low Frequency ◽  
Discrete Breathers

scholarly journals Long‐Range Radiation and Interference Pattern of Multisource M 2 Internal Tides in the Philippine Sea

2018 ◽  
Vol 123 (8) ◽  
pp. 5091-5112 ◽  
Author(s):  
Yang Wang ◽  
Zhenhua Xu ◽  
Baoshu Yin ◽  
Yijun Hou ◽  
Hang Chang
Keyword(s):  
Long Range ◽  
Interference Pattern ◽  
Internal Tides ◽  
Philippine Sea

Spatial structure of long‐range, low‐frequency seafloor reverberation in the Canary Basin

1990 ◽  
Vol 88 (S1) ◽  
pp. S106-S106
Author(s):  
Jonathan M. Berkson ◽  
Fredrick R. Facemire ◽  
Jay A. Wallmark
Keyword(s):  
Spatial Structure ◽  
Long Range ◽  
Low Frequency

Vertical directionality of low‐frequency ambient noise in the Philippine Sea.

2010 ◽  
Vol 128 (4) ◽  
pp. 2387-2387
Author(s):  
Kathleen E. Wage ◽  
Matthew A. Dzieciuch ◽  
Peter F. Worcester
Keyword(s):  
Ambient Noise ◽  
Low Frequency ◽  
Philippine Sea
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