H. Ngodock: search on Z-Library

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1

A variational data assimilation system for the range dependent acoustic model using the representer method: Theoretical derivations

Ngodock, Hans, Carrier, Matthew, Fabre, Josette, Zingarelli, Robert, Souopgui, Innocent

Journal:

The Journal of the Acoustical Society of America

Year:

2017

Language:

english

File:

PDF, 781 KB

english, 2017

2

Synoptic forcing of the Korea Strait transport

G.A. Jacobs, D.S. Ko, H. Ngodock, R.H. Preller, S.K. Riedlinger

Journal:

Deep Sea Research Part II: Topical Studies in Oceanography

Year:

2005

Language:

english

File:

PDF, 1.61 MB

english, 2005

3

Efficient implementation of covariance multiplication for data assimilation with the representer method

Hans E. Ngodock

Journal:

Ocean Modelling

Year:

2005

Language:

english

File:

PDF, 309 KB

english, 2005

4

The representer method, the ensemble Kalman filter and the ensemble Kalman smoother: A comparison study using a nonlinear reduced gravity ocean model

Hans E. Ngodock, Gregg A. Jacobs, Mingshi Chen

Journal:

Ocean Modelling

Year:

2006

Language:

english

File:

PDF, 615 KB

english, 2006

5

Cycling the representer algorithm for variational data assimilation with a nonlinear reduced gravity ocean model

Hans E. Ngodock, Scott R. Smith, Gregg A. Jacobs

Journal:

Ocean Modelling

Year:

2007

Language:

english

File:

PDF, 1.35 MB

english, 2007

6

Cycling the Representer Method for 4D-variational data assimilation with the Navy Coastal Ocean Model

S.R. Smith, H.E. Ngodock

Journal:

Ocean Modelling

Year:

2008

Language:

english

File:

PDF, 3.61 MB

english, 2008

7

Background-error correlation model based on the implicit solution of a diffusion equation

Matthew J. Carrier, Hans Ngodock

Journal:

Ocean Modelling

Year:

2010

Language:

english

File:

PDF, 994 KB

english, 2010

8

An examination of a multi-scale three-dimensional variational data assimilation scheme in the Kuroshio Extension using the naval coastal ocean model

Muscarella, Philip A., Carrier, M.J., Ngodock, H.E.

Journal:

Continental Shelf Research

Year:

2014

Language:

english

File:

PDF, 4.83 MB

english, 2014

9

[IEEE Oceans 2007 - Vancouver, BC, Canada (2007.09.29-2007.10.4)] Oceans 2007 - 4DVAR Assimilation of ADCP Data with the Navy Coastal Ocean Model using the Cycling Representer Method

Smith, S. R., Ngodock, H. E., Jacobs, G. A.

Year:

2007

Language:

english

File:

PDF, 7.36 MB

english, 2007

10

A Variational Assimilation System for Nearshore Wave Modeling

Orzech, Mark D., Veeramony, Jayaram, Ngodock, Hans

Journal:

Journal of Atmospheric and Oceanic Technology

Year:

2013

Language:

english

File:

PDF, 3.24 MB

english, 2013

11

Impact of Assimilating Ocean Velocity Observations Inferred from Lagrangian Drifter Data Using the NCOM-4DVAR*

Carrier, Matthew J., Ngodock, Hans, Smith, Scott, Jacobs, Gregg, Muscarella, Philip, Ozgokmen, Tamay, Haus, Brian, Lipphardt, Bruce

Journal:

Monthly Weather Review

Year:

2014

Language:

english

File:

PDF, 1.88 MB

english, 2014

12

Do Assimilated Drifter Velocities Improve Lagrangian Predictability in an Operational Ocean Model?

Muscarella, Philip, Carrier, Matthew J., Ngodock, Hans, Smith, Scott, Lipphardt, B. L., Kirwan, A. D., Huntley, Helga S.

Journal:

Monthly Weather Review

Year:

2015

Language:

english

File:

PDF, 1.51 MB

english, 2015

13

A 4DVAR System for the Navy Coastal Ocean Model. Part I: System Description and Assimilation of Synthetic Observations in Monterey Bay*

Ngodock, Hans, Carrier, Matthew

Journal:

Monthly Weather Review

Year:

2014

Language:

english

File:

PDF, 4.87 MB

english, 2014

14

A 4DVAR System for the Navy Coastal Ocean Model. Part II: Strong and Weak Constraint Assimilation Experiments with Real Observations in Monterey Bay*

Ngodock, Hans, Carrier, Matthew

Journal:

Monthly Weather Review

Year:

2014

Language:

english

File:

PDF, 1.89 MB

english, 2014

15

Incremental projection approach of regularization for inverse problems

Souopgui, Innocent, Ngodock, Hans E., Vidard, Arthur, Le Dimet, François-Xavier

Journal:

Applied Mathematics & Optimization

Year:

2016

Language:

english

File:

PDF, 1.15 MB

english, 2016

16

Impact of Assimilating Surface Velocity Observations on the Model Sea Surface Height Using the NCOM-4DVAR*

Carrier, Matthew J., Ngodock, Hans E., Muscarella, Philip, Smith, Scott

Journal:

Monthly Weather Review

Year:

2016

Language:

english

File:

PDF, 2.70 MB

english, 2016

17

On improving the accuracy of the M2 barotropic tides embedded in a high-resolution global ocean circulation model

Ngodock, Hans E., Souopgui, Innocent, Wallcraft, Alan J., Richman, James G., Shriver, Jay F., Arbic, Brian K.

Journal:

Ocean Modelling

Year:

2016

Language:

english

File:

PDF, 3.04 MB

english, 2016

18

The Maintenance of Conservative Physical Laws within Data Assimilation Systems*

Jacobs, G. A., Ngodock, H. E.

Journal:

Monthly Weather Review

Year:

2003

Language:

english

File:

PDF, 992 KB

english, 2003

19

On the direct assimilation of along-track sea-surface height observations into a free-surface ocean model using a weak constraints four-dimensional variational (4D-Var) method

Ngodock, Hans, Carrier, Matthew, Souopgui, Innocent, Smith, Scott, Martin, Paul, Muscarella, Philip, Jacobs, Gregg

Journal:

Quarterly Journal of the Royal Meteorological Society

Year:

2016

Language:

english

File:

PDF, 5.20 MB

english, 2016

20

Generalized Inverse of a Reduced Gravity Primitive Equation Ocean Model and Tropical Atmosphere–Ocean Data

Ngodock, Hans E., Chua, Boon S., Bennett, Andrew F.

Journal:

Monthly Weather Review

Year:

2000

Language:

english

File:

PDF, 856 KB

english, 2000

21

Examining the Potential Impact of SWOT Observations in an Ocean Analysis–Forecasting System

Carrier, Matthew J., Ngodock, Hans E., Smith, Scott R., Souopgui, Innocent, Bartels, Brent

Journal:

Monthly Weather Review

Year:

2016

Language:

english

File:

PDF, 2.37 MB

english, 2016

22

Weak and Strong Constraints Variational Data Assimilation with the NCOM-4DVAR in the Agulhas Region Using the Representer Method

Ngodock, Hans, Carrier, Matthew, Smith, Scott, Souopgui, Innocent

Journal:

Monthly Weather Review

Year:

2017

Language:

english

File:

PDF, 2.16 MB

english, 2017

23

A comparison of two preconditioner algorithms within the representer-based four-dimensional variational data assimilation system for the Navy coastal ocean model

Souopgui, Innocent, Ngodock, Hans, Carrier, Matthew, Smith, Scott

Journal:

Journal of Operational Oceanography

Year:

2017

Language:

english

File:

PDF, 1.53 MB

english, 2017

24

Sensitivity Analysis in Variational Data Assimilation (gtSpecial IssueltData Assimilation in Meteology and Oceanography: Theory and Practice)

Dimet, F.-X. Le, Ngodock, H.-E., Luong, B., Verron, J.

Journal:

Journal of the Meteorological Society of Japan

Year:

1997

File:

PDF, 1.02 MB

1997

25

Coastal Ocean Observing Systems || Assimilation of HF Radar Observations in the Chesapeake–Delaware Bay Region Using the Navy Coastal Ocean Model (NCOM) and the Four-Dimensional Variational (4DVAR) Method

Year:

2015

Language:

english

File:

PDF, 3.12 MB

english, 2015

26

A Multiscale Approach to High Resolution Ocean Profile Observations within a 4DVAR Analysis System

Carrier, Matthew J., Osborne, John J., Ngodock, Hans E., Smith, Scott R., Souopgui, Innocent, D’Addezio, Joseph M.

Journal:

Monthly Weather Review

Year:

2018

Language:

english

File:

PDF, 2.05 MB

english, 2018

27

Variational assimilation of glider data in Monterey Bay

Pan, Chudong, Yaremchuk, Max, Nechaev, Dmitri, Ngodock, Hans

Journal:

Journal of Marine Research

Year:

2011

Language:

english

File:

PDF, 3.63 MB

english, 2011

28

Variational assimilation of glider data in Monterey Bay

Pan, Chudong, Yaremchuk, Max, Nechaev, Dmitri, Ngodock, Hans

Journal:

Journal of Marine Research

Year:

2011

File:

PDF, 3.63 MB

2011

29

An ensemble of perturbed analyses to approximate the analysis error covariance in 4dvar

Ngodock, H., Souopgui, I., Carrier, M., Smith, S., Osborne, J., DâAddezio, J.

Journal:

Year:

2020

File:

PDF, 1.29 MB

2020