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Total result(s) found: 127
  • ​Integrating gravimetric and interferometric synthetic aperture radar data for enhancing reservoir history matching of carbonate gas and volatile oil reservoirs
    K. Katterbauer, S. Arango, S. Sun, and I. Hoteit
    Geophysical Prospecting, 65, 337-364, 2017
Keywords:
Ensemble Kalman filter; Gas condensate reservoir; Gravimetry; History matching
  • ​The gulf of aden intermediate water intrusion regulates the southern Red Sea summer phytoplankton blooms
    D. Dreano, D. Raitsos, J. Gittings, and I. Hoteit
    Plos One, olume 11, Issue 12, 2016
Keywords:
Red Sea; Phytoplankton blooms
  • On the efficiency of the hybrid and the second-order sampling formulations of the EnKF: A reality inspired 3D test case for estimating biodegradation rates of chlorinated hydrocarbons in the port of Rotterdam
    M.E. Gharamti, J. Valstar, G. Janssen, A. Marsman, and I. Hoteit
    Hydrology and Earth System Science, 20, 4561-4583, 2016
Keywords:
Anaerobic degradation; Background information; Chlorinated hydrocarbon; Ensemble Kalman Filter
  • ​On the generation and evolution of internal solitary waves in the southern Red Sea
    D. Guo, T. Akylas, P. Zhan, A. Kartadikaria, and I. Hoteit
    Journal of Geophysical Research, Volume 121, Issue 12, Pages 8566–8584, 2016
Keywords:
Generation mechanism; Internal solitary waves; Numerical simulation; Red Sea; SAR image
  • ​Path planning in uncertain flow fields using ensemble method
    T. Wang, O. Le Maitre, I. Hoteit and O. Knio
    Ocean Dynamics, 66, 1231-1251, 2016
Keywords:
Ensemble forecast; Heading control; Optimal path planning; Polynomial chaos
  • Polynomial chaos-based Bayesian inference of K-profile parameterization in an ocean general circulation model of the tropical Pacific
    I. Sraj, S. Zedler, C. Jackson, O. Knio, and I. Hoteit
    Monthly Weather Review, Volume 144, Issue 12, Pages 4621-4640, 2016
Keywords:
Bayesian methods; Ocean circulation; Spectral analysis/models/distribution
  • ​Climatic features of the Red Sea from a regional assimilative model
    V. Yesubabu, H. Dasari, S. Langodan, S. Venkata, and I. Hoteit
    International Journal of Climatology, 2016
Keywords:
3DVAR; Data assimilation; Dynamical downscaling; Red Sea reanalysis; WRF model
  • ​A high resolution assessment of wind and wave energy potentials in the Red Sea
    S. Langodan, Y. Viswanadhapalli, H. Dasari, O. Knio, and I. Hoteit
    Applied Energy, 244-255, 2016
Keywords:
ARW reanalysis; Red Sea; Wave energy; WAVEWATCH III; Wind energy
  • ​A Bayesian consistent dual ensemble Kalman filter for state-parameter estimation in subsurface hydrology
    B. Ait-El-Fquih, M.E. Gharamti, and I. Hoteit
    Hydrology and Earth System Science, 20, 3289-3307, 2016
Keywords:
Dual filtering strategy; Ensemble Kalman Filter; Ensemble Kalman filtering; Numerical experiments
  • ​A variational Bayesian multiple particle filtering scheme for large-dimensional systems
    B. Ait-El-Fquih and I. Hoteit
    IEEE Transactions on Signal Processing, 64, 5409-5422, 2016
Keywords:
Bayesian filtering; Hidden Markov chain; High dimension; Particle filtering; Sequential Monte Carlo; Variational Bayes
  • ​The eddy kinetic energy budget in the Red Sea
    P. Zhan, A. Subramanian, F. Yao, A. Kartadikaria, D. Guo, and I. Hoteit
    Journal of Geophysical Research, Volume 121, Issue 7, Pages 4732–4747, 2016
Keywords:
Eddy; Eddy kinetic energy; Red Sea
  • ​Single-site Lennard-Jones models via polynomial chaos surrogate of Monte Carlo molecular simulation
    A. Kadoura, A. Sripatana, O. Knio, S. Sun, and I. Hoteit
    Journal of Chemical Physics, 144, 214301, 2016
Keywords:
Complex molecules; Computational time; Large-scale optimization; Lennard-Jones model; Molecular simulations; Polynomial chaos; Supercritical isotherm
  • ​A sparse Bayesian imaging technique for efficient recovery of reservoir channels with time-lapse seismic measurements
    F. Sana, F. Ravanelli, T. Al-Nafouri, and I. Hoteit
    IEEE of Selected Topics in Applied Earth Observations and Remote Sensing, 9, 2242-2254, 2016
Keywords:
Ensemble Kalman filter (EnKF); K-SVD; orthogonal matching pursuit (OMP); reservoir history matching; seismic imaging; sparsity; subsurface channels recovery; support agnostic Bayesian matching pursuit (SABMP)
  • ​Data assimilation of depth-distributed satellite chlorophyll-a in two Mediterranean contrasting sites
    S. Kalaroni, K. Tsiaras, G. Petihakis, I. Hoteit, A. Economou-Amilli, and G. Triantafyllou
    Journal of Marine Systems, 160, 40-53, 2016
Keywords:
Chlorophyll; Data assimilation; Ecosystem model; Ensemble Kalman filter; Mediterranean Sea; Ocean color
  • ​Orthogonal matching pursuit for enhanced recovery of sparse geological structures with the ensemble Kalman filter
    F. Sana, K. Katterbauer, T. Al-Nafouri, and I. Hoteit
    IEEE of Selected Topics in Applied Earth Observations and Remote Sensing, 9, 1710-1724, 2016
Keywords:
Compressed sensing (CS); Ensemble Kalman filter (EnKF); K-SVD; Orthogonal matching pursuit (OMP); Sparsity; State-parameter estimation; Subsurface characterization
  • ​A study of reduced order 4DVAR with a finite element shallow water model
    U. Altaf, M. Ambrozic, M. MacCabe, and I. Hoteit
    International Journal of Numerical Methods in Fluids, 80, 631-647, 2016
Keywords:
Proper orthogonal decomposition; Reduced variational data assimilation; Shallow water models; Variational data assimilation
  • ​Assessing clustering strategies for Gaussian mixture filtering of a subsurface contaminant model
    B. Lui, M.E. Gharamti, and I. Hoteit
    Journal of Hydrology, 535, 1-21, 2016
Keywords:
Clustering; Ensemble Kalman filtering; Gaussian mixtures; Particle filtering; Subsurface contaminant model
  • ​Impact of atmospheric data assimilation on wave simulation in the Red Sea
    S. Langodan, V. Yesubabu, and I. Hoteit
    Ocean Engineering, 116, 200-215, 2016
Keywords:
3DVAR; Data assimilation; Red Sea; Wave modeling; WRF model
  • ​Predicting extreme rainfall events over Jeddah, Saudi Arabia: Impact of data assimilation with conventional and satellite observations
    V. Yesubabu, C. Srinivas, S. Langodan, and I. Hoteit
    Quarterly Journal of the Royal Meteorological Society, 142, 327-348, 2016
Keywords:
3D-Var; Data assimilation; Flash flood; Jeddah; WRF model
  • ​Efficient Kernel-based ensemble Gaussian mixture filtering
    A. Lui, B. Ait-El-Fquih, and I. Hoteit
    Monthly Weather Review, 144, 781-800, 2016
Keywords:
Bayesian filtering; Data assimilation; Efficient implementation; Ensemble-Monte Carlo method; Gaussian mixtures;
  • Synergizing crosswell seismic and electromagnetic techniques for enhancing reservoir characterization
    K. Katterbauer, I. Hoteit, and S. Sun
    Society of Petroleum Engineering (SPE) Journal, 2016
Keywords:
Seismic and electromagnetic techniques; Hydrocarbon projects; 2D, 3D reservoirs
  • ​Enhanced characterization of reservoir hydrocarbon reservoir components using electromagnetic data attributes
    K. Katterbauer, S. Arango, S. Sun, and I. Hoteit
    Journal of Petroleum Science and Engineering, 140, 1-15, 2016
Keywords:
Archie parameter estimation; Electromagnetic data; Ensemble based history matching; History matching; Observation error covariance estimation
  • Coordinates transformation and polynomial chaos for the Bayesian Inference of a Gaussian process with parameterized prior covariance function
    I. Sraj, O. Le Maitre, O. Knio, and I. Hoteit
    Computer Methods in Applied Mathematics and Engineering, 298, 205-228, 2016
Keywords:
Bayesian inference; Dimensionality reduction; Karhunen-Loève expansion; Markov Chain Monte Carlo
  • ​Factors governing the deep ventilation of the Red Sea
    V. Papadopoulos, P. Zhan, S. Sofianos, A. Bower, D. Raitsos, M. Qurban, Y. AbuAlnaja, H. Kontoyiannis, A. Pavlidou, N. Zarokanellos, and I. Hoteit
    Journal of Geophysical Research 120, 7493-7505, 2015. (Highlighted as the cover of JGR issue)
Keywords:
Deep water formation; Red Sea; Thermohaline circulation
  • Fast Kalman-like filtering for high dimensional linear state-space models
    B. Ait-El-Fquih and I. Hoteit
    IEEE Transactions on Signal Processing, 63, 5853-5867, 2015
Keywords:
Bayesian filtering; Fast estimation algorithms; High dimension; Kalman filtering; Variational Bayes
  • ​Wind-wave source functions in opposing seas
    S. Langodan, L. Cavaleri, V. Yesubabu, and I. Hoteit
    Journal of Geophysical Research, 120, 6751-6768, 2015. (Highlighted as the cover of JGR issue)
Keywords:
Opposing waves; Red Sea; Wave model; Waves; White-capping; Winds
  • Enhanced oil recovery for carbonate reservoirs integrating cross-well seismic – a synthetic Warfa case study
    K. Katterbauer, S. Arango, S. Sun, and I. Hoteit
    Journal of Petroleum Science and Engineering, 134, 1-13, 2015
Keywords:
Ensemble Kalman filter; Full waveform seismic; Heavy Oil; History matching; Steam drive
  • ​Regional ocean-color chlorophyll algorithms for the Red Sea
    R. Brewin, D. Raitsos, G. Dall’Olmo, N. Zarakanellos, T. Jackson, B. Jones, and I. Hoteit
    Remote Sensing of Environment, 165, 64-85, 2015
Keywords:
Chlorophyll; Coloured dissolved organic matter; Ocean colour; Phytoplankton; Red Sea; Remote sensing; Validation
  • ​An iterative ensemble Kalman filter with one-step-ahead smoothing for state-parameter estimation in subsurface hydrology
    M.E. Gharamti, B. Ait-El-Fquih, and I. Hoteit
    Journal of Hydrology, Volume 527, Pages 442–457, 2015
Keywords:
Bayesian estimation; Ensemble Kalman filter; One-step-ahead smoothing; State-parameter estimation; Subsurface contaminant transport
  • Mitigating observation perturbation sampling errors in the stochastic EnKF
    I. Hoteit, D.-T. Pham, M.E. Gharamti, and X. Luo
    Monthly Weather Review, 143, 2918-2936, 2015
Keywords:
Data assimilation; Sampling errors; Ensemble Kalman filter (EnKF)
  • Filtering remotely sensed chlorophyll concentrations in the Red Sea using a space-time covariance model and a Kalman filter
    D. Dreano, B. Mallick, and I. Hoteit
    Spatial Statistics, Volume 13, Pages 1–20, 2015
Keywords:
Chlorophyll concentration; Covariance models; Geostatistics; Kalman filter; Space-time statistics
  • ​The possibilities of least-squares migration of internally scattered seismic energy
    A. Al-Dawood, I. Hoteit, G. Turkiyyah, Z. Akbar, and T. Al-Khalifah
    Geophysics, 80, 93-101, 2015
Keywords:
Least-squares migration; Seismic energy; Earth's subsurface structures
  • Multi-data reservoir history matching for enhanced reservoir forecasting and uncertainty quantification
    K. Katterbauer, S. Arango, S. Sun, and I. Hoteit
    Journal of Petroleum Science and Engineering, 128, 160-176, 2015
Keywords:
4D reservoir monitoring; Ensemble Kalman Filter; History matching; Sensitivity analysis
  • Far-field ocean conditions and concentrate discharges modeling along the Saudi Coast of the Red Sea
    P. Zhan, F. Yao, A. Kartadikaria, V. Yesubabu, G. Gopalakrishnan, and I. Hoteit
    Environmental Science and Engineering (Subseries: Environmental Science), Springer, 149pp., 501-520, 2015
Keywords:
Far-field ocean conditions; Saudi Coast; Red Sea; Connectivity Modeling System (CMS)
  • Phytoplankton phenology indices in coral reef ecosystems: application to ocean-colour observations in the Red Sea
    M.F. Racault, D. Raitsos, M. Berumen, T. Platt, S. Sathyendranath, and I. Hoteit
    Journal of Remote Sensing of Environment, Volume 160, Pages 222–234, 2015
Keywords:
Coral reef ecosystems; Ecological indicators; ESA OC-CCI; Monsoon; Ocean-color remote sensing; Phytoplankton phenology; Red sea
  • Not finding Nemo: limited reef-scale retention in a coral reef fish
    G. Nanninga, P. Saenz-Agudelo, P. Zhan, I. Hoteit, and M. Berumen
    Coral Reefs, Volume 34, Issue 2, pp 383–392, 2015

Keywords:
Biophysical model; Larval dispersal; Local retention; Parentage analysis; Red Sea; Self-recruitment
  • Monsoon oscillations regulate fertility of the Red Sea
    D. Raitsos, X. Yi, T. Platt, M.-F. Racault, R.J.W. Brewin, Y. Pradhan, V.P. Papadopoulos, S. Sathyendranath, and I. Hoteit
    Geophysical Research Letters, Volume 42, Issue 3, Pages 855–862, 2015
Keywords:
Chlorophyll; ENSO; Horizontal advection; Monsoons; Phytoplankton biomass; Red Sea
  • Visualizing uncertainties in a storm surge ensemble data assimilation and forecasting system
    T. Höllt, U. Altaf, K. Mandli, M. Hadwiger, C. Dawson, and I. Hoteit
    Natural Hazards, 77, 317 - 336, 2015
Keywords:
Ensemble data; Interactive Visualization; Storm surge; Visual analysis
  • Thermocline regulated surface chlorophyll blooms in the Gulf of Aden
    F. Yao and I. Hoteit
    PLoS One, Volume 10, Issue 3, Article number e0119951
Keywords:
Chlorophyll content; Evolution; Gulf of Aden; Hurricane; Inorganic nutrient
  • ​Regional ocean data assimilation
    C. Edwards, A. Moore, I. Hoteit, and B. Cornuelle
    Annual Review of Marine Science, 7, 21-42, 2015
Keywords:
Data assimilation; Ecosystem modeling; Ocean modeling
  • ​Nonlinear Bayesian mode filtering
    B. Liu and I. Hoteit
    International Journal of Innovative Computing, Information and Control, 11, 231-246, 2015
Keywords:
Bayesian filtering, Mode filtering, Natural gradient, Fisher information matrix
  • Impact of atmospheric modes of variability on the air-sea heat exchange in the Red Sea
    Y. Abu-Alnaja, V. Papadopoulos, S. Josey, D. Raitsos, H. Kontoyiannis, and I. Hoteit
    Journal of Climate, 28, 2665-2681, 2015
Keywords:
Atmospheric modes, Air-sea heat exchange, Red Sea
  • ​History matching of electromagnetically heated reservoirs incorporating full-wavefield seismic and EM imaging
    K. Katterbauer, I. Hoteit, and S. Sun
    Society of Petroleum Engineering (SPE) Journal, 20(5), 923-941, 2015
Keywords:
Heavy oil recovery; Increasing temperatures; Long-term effects; Propagation pattern; Reservoir dynamics; Strong dependences; Technological improvements
  • ​Comparison between a coupled 1D-2D model and a fully 2D model for supercritical flow simulation in crossroads
    R. Ghostine, I. Hoteit, J. Vazquez, A. Terfous, A. Ghenaim, and R. Mose
    Journal of Hydraulics Research, 53, 274-281, 2015
Keywords:
Coupled 1D-2D model; Finite volume; Fully 2D model; Shallow water equations; Supercritical flow
  • The possibilities of compressed-sensing-based pre- Kirchhoff stack migration
    A. Al-Dawood, I. Hoteit, and T. Al-Khalifah
    Geophysics, 79(3), S113-S20, 2014
Keywords:
Compressed sensing; Geophysical prospecting; Problem solving; Reflection; Signal reconstruction
  • The Red Sea: a natural laboratory for wind and wave modeling
    S. Langodan, L. Cavaleri, L. Viswanadhapalli, and I. Hoteit
    Journal of Physical Oceanography, 44, 3139-3159, 2014
Keywords:
Atm/Ocean Structure/Phenomena; Circulation/Dynamics; Complex terrain; Geographic location/entity; Model evaluation/performance; Models and modeling; Orographic effects; Regional models; Wind; Wind waves
  • ​Uncertainty quantification and inference of Manning’s friction coefficient using DART Buoys during Tohoku Tsunami
    I. Sraj, K. Mandli, O. Knio, C. Dawson, and I. Hoteit
    Ocean Modelling, 83, 82-97, 2014
Keywords:
Bayesian inference; Manning's n friction coefficient; Polynomial Chaos; Sensitivity analysis; Tsunami
  • ​Ensemble Kalman filtering with a divided state-space strategy for coupled data assimilation problems
    X. Luo and I. Hoteit
    Monthly Weather Review, 142, 4542-4558, 2014
Keywords:
Bayesian methods; Filtering techniques; Kalman filters
  • EMSE: Synergizing EM and seismic data attributes for enhanced forecasts of reservoirs
    K. Katterbauer, I. Hoteit, and S. Sun
    Journal of Petroleum Science and Engineering, 122, 396-410, 2014
Keywords:
Electromagnetic tomography; EnKF; EnRML; Iterative EnKF; Reservoir history matching; Seismic imaging
  • ​Eddies in the Red Sea: A statistical and dynamical study
    P. Zhan, A. Subramanian, F. Yao, and I. Hoteit
    Journal of Geophysical Research, 119(6), 3909-3925, 2014
Keywords:
Dynamics; Eddy; Red Sea; SLA; Statistics
  • ​Ensemble Kalman filtering with residual nudging: An extension to nonlinear to state estimation problems with nonlinear observation operators
    X. Luo and I. Hoteit
    Monthly Weather Review, 142, 3696-3712, 2014
Keywords:
Ensemble Kalman filtering; Estimation problem; Observation operator
  • ​Metric of the 2-6 day sea-surface temperature response to wind stress in the Tropical Pacific and its sensitivity of the K-Profile Parameterization of vertical mixing
    B.M. Wagman, C.S. Jackson, F. Yao, S. Zedler, and I. Hoteit
    Ocean Modelling, 79, 54-64, 2014
Keywords:
Metrics; Mixing; Turbulence
  • ​A comparison of ensemble Kalman filters for storm surge assimilation
    U. Altaf, T. Butler, T. Mayo, X. Luo, C. Dawson, T. Mayo, A.W. Heemink, and I. Hoteit
    Monthly Weather Review, 142, 2899-2914, 2014
Keywords:
Floods; Stochastic models; Stochastic systems; Storms
  • ​Ovis: A framework for visual analysis of ocean forecast ensembles
    T. Höllt, A. Magdy, P. Zhan, G. Chen, G. Gopalakrishnan, I. Hoteit, C.D. Hansen, and M. Hadwiger
    IEEE Transactions on Visualization and Computer Graphics, 20, 1114-1126, 2014
Keywords:
Ensemble visualization; Ocean forecast; Ocean visualization; Risk estimation
  • An adaptive hybrid EnKF-OI scheme for efficient state-parameter estimation of reactive contaminant transport models
    M. Elgharamti, J. Valstar, and I. Hoteit
    Advances in Water Resources, 71, 1-15, 2014
Keywords:
Contaminant transport modeling; Ensemble Kalman filter (EnKF); Hybrid EnKF-OI; Optimal interpolation (OI); State-parameter estimation
  • Data assimilation within the advanced circulation (ADCIRC) modeling framework for the estimation of Manning’s friction coefficient
    T. Mayo, C. Dawson, T. Buttler, and I. Hoteit
    Ocean Modelling, 76, 43-58, 2014
Keywords:
Bottom stress; Data assimilation; Manning's n; Parameter estimation; SEIK filter; Shallow water equations
  • Exploring the Red Sea seasonal ecosystem functioning using a three-dimensional biophysical model
    G. Triantafyllou, F. Yao, G. Petihakis, K. Tsiaras, D. Raitsos, and I. Hoteit
    Journal of Geophysical Research, Volume 119, Issue 3, Pages 1791–1811, 2014
Keywords:
Coupled physical - biochemical modeling; Ecosystem model; Red Sea
  • ​Seasonal overturning circulation in the Red Sea. Part-I: Model validation and summer circulation
    F. Yao, I. Hoteit, L. Pratt, A. Bower, P. Zhai, A. Kohl, and G. Gopalakrishnan
    Journal of Geophysical Research, Volume 119, Issue 4, Pages 2238–2262, 2014
Keywords:
MITgcm; overturning; Red Sea
  • ​Seasonal overturning circulation in the Red Sea. Part-II: Winter circulation
    F. Yao, I. Hoteit, L. Pratt, A. Bower, A. Kohl, G. Gopalakrishnan, and D. Rivas
    Journal of Geophysical Research, Volume 119, Issue 4, Pages 2263–2289, 2014
Keywords:
MITgcm; overturning; Red Sea
  • ​From silk to satellite; a half century of ocean colour changes in the Northeast Atlantic
    D. Raitsos, P. Yaswant, S. J. Lavender, I. Hoteit, A. McQuatters-Gollop, P.C. Reid, and A.J. Richardson
    Global Change Biology, Volume 20, Issue 7, Pages 2117-2123, 2014
Keywords:
Chlorophyll; Northeast Atlantic; Northern hemisphere temperature; Ocean colour; Phytoplankton variability
  • ​A nested sampling particle filter for nonlinear data assimilation
    A. El-Sheikh, I. Hoteit, and M. Wheeler
    Quarterly Journal of the Royal Meteorological Society, Volume 140, Issue 682, Part A, Pages 1640–1653, 2014
Keywords:
Nested sampling; Particle filters; Sequential data assimilation
  • ​Constraining a compositional flow model with flow-chemical data using an ensemble Kalman filter
    M. Elgharamti, A. Kadoura, S. Sun, J. Valstar, and I. Hoteit
    Water Resources Research, Volume 50, Issue 3, Pages 2444–2467, 2014
Keywords:
Chemical composition data; Compositional flow models; Ensemble Kalman filtering; Joint and dual updating schemes; State and parameter estimation
  • Efficient Bayesian inference of subsurface flow models using nested sampling and sparse polynomial chaos surrogates
    A. El-Sheikh, I. Hoteit, and M. Wheeler
    Computer Methods in Applied Mechanics and Engineering, 269, 515-537, 2014
Keywords:
Least Angle Regression; Nested sampling; Polynomial chaos expansion; Sparsity promoting regularization; Subsurface flow models
  • Complex step based low-rank extended Kalman filtering for state-parameter estimation of subsurface transport models
    M. Elgharamti, and I. Hoteit
    Journal of Hydrology, 509, 588-600, 2014
Keywords:
Complex step approximation; Joint state-parameter estimation; Low-rank extended Kalman filtering; Subsurface contaminant transport
  • Hybrid nested sampling algorithm for Bayesian model selection applied to inverse subsurface flow problems
    A. El-Sheikh, M. Wheeler, and I. Hoteit
    Journal of Computational Physics, 258, 319-377, 2014
Keywords:
Bayesian model comparison; Hybrid Monte Carlo; Nested sampling; Stochastic ensemble method; Subsurface flow models; Uncertainty quantification
  • ​Low-complexity wireless monitoring of respiratory movements using ultra-wideband response estimation
    F. Sana, T. Ballal, T. Al-Naffouri, and I. Hoteit
    IEEE Transactions on Instrumentation and Measurements, 10(1), 192-200, 2014
Keywords:
Background clutter; High sampling rates; Low signal-to-noise ratio; Novel methodology; Respiratory movement; Respiratory signals; Ultra-wideband channels; Wireless monitoring
  • ​Nested sampling algorithm for subsurface flow model selection, uncertainty quantification, and nonlinear calibration
    A. El-Sheikh, M. Wheeler, and I. Hoteit
    Water Resources Research, 49, 1-17, 2013
Keywords:
Contaminant remediation; Efficient sampling; Hydrocarbon reservoir; Information contents; Nonlinear calibration; Posterior distributions; Sampling algorithm; Uncertainty quantifications
  • ​Observation quality control with a robust ensemble Kalman filter
    S. Roh, M. Genton, M. Jun, I. Szunyogh, and I. Hoteit
    Monthly Weather Review, 141, 4414 - 4428, 2013
Keywords:
Ensemble forecasting; Error analysis; Kalman filter; Numerical model; Outlier; Quality control; Statistical analysis
  • Improving short-range ensemble Kalman storm surge forecasting using robust adaptive inflation
    U. Altaf, T. Butler, X. Luo, C. Dawson, T. Mayo, and I. Hoteit
    Monthly Weather Review, 141, 2705-2720, 2013
Keywords:
Climate modeling; Climate prediction; Data assimilation; Ensemble forecasting; Error analysis; Hurricane Ike 2008; Hurricane Katrina 2005; Hydrodynamics; Kalman filter; Storm surge
  • Dual states estimation of a subsurface flow-contaminant coupled model using ensemble Kalman filtering
    M. Elgharamti, I. Hoteit, and J. Valstar
    Advances in Water Resources, 60, 75-88, 2013
Keywords:
Dual states estimation; Ensemble Kalman filter; Flow and transport coupled models; Joint states estimation
  • ​Covariance inflation in the ensemble Kalman filter: A residual nudging perspective and some implications
    X. Luo and I. Hoteit
    Monthly Weather Review, 141, 3360 - 3368, 2013
Keywords:
Filtering techniques; Kalman filters
  • Remote sensing the phytoplankton seasonal succession of the Red Sea
    D. Raitsos, P. Pradhan, R. Brewin, G. Stenchikov, and I. Hoteit
    PLoS ONE, Volume 8, Issue 6, Article number e64909, 2013
Keywords:
Chlorophyll; Coral Reefs; Indian Ocean; Phytoplankton; Remote Sensing Technology; Seasons; Seawater; Spacecraft
  • An adaptive adjoint-based ensemble Kalman filter
    H. Song, I. Hoteit, B. Cornuelle, X. Luo, and A. Subramanian
    Monthly Weather Review, 141, 3343 - 3359, 2013
Keywords:
Data assimilation; Ensembles; Filtering techniques; Kalman filters; Optimization; Variational analysis
  • State estimates and forecasts of the loop current in the Gulf of Mexico using the MITgcm and its adjoint
    G. Gopalakrishnan, B. Cornuelle, I. Hoteit, D. Rudnick, and W. Brechner
    Journal of Geophysical Research, Volume 118, Issue 7, Pages 3292–3314, 2013
Keywords:
Gulf of Mexico; hindcast and forecast; loop current; MITgcm; ocean modeling; state estimation
  • Adjoint sensitivity studies of loop current and eddy shedding in the Gulf of Mexico using the MITgcm and its adjoint
    G. Gopalakrishnan, B. Cornuelle, and I. Hoteit
    Journal of Geophysical Research, Volume 118, Issue 7, Pages 3315-3335, 2013
Keywords:
Adjoint sensitivity; Gulf of Mexico; Hindcast/forecast; Loop current; MIT general circulation model; State estimation
  • Estimation of the drag coefficient from the upper ocean response to a hurricane: a variational data assimilation approach
    S. Zedler, G. Kanschat, I. Hoteit, and R. Korty
    Ocean Modelling, 68, 57-71, 2013
Keywords:
Drag coefficient adjustment; Hurricane; Mixed layer dynamics; Ocean response to a hurricane; Tropical cyclone; Upper ocean processes
  • Clustered iterative stochastic ensemble method for multi-modal calibration of subsurface flow models
    A. El-Sheikh, M. Wheeler, and I. Hoteit
    Journal of Hydrology, 491, 40-55, 2013
Keywords:
K-means Clustering; Multi-modal Optimization; Parameter estimation; Regularization; Subsurface Flow Models
  • Comparison of chlorophyll in the Red Sea derived from MODIS-Aqua and in vivo fluorescence 
    R. Brewin, D. Raitsos, Y. Pradhan, and I. Hoteit
    Remote Sensing of Environment, 136, 218-224, 2013
Keywords:
Chlorophyll; Comparison; Ocean colour; Phytoplankton; Red Sea; Remote sensing
  • Efficient particle filtering through residual nudging
    X. Luo and I. Hoteit
    Quarterly Journal of the Royal Meteorological Society, doi:10.1002/qj.2152, 2013
Keywords:
Data assimilation; Particle filter; Residual nudging
  • Sparse calibration of subsurface flow models using a stochastic ensemble method
    A. El-Sheikh, M. Wheeler, and I Hoteit
    Advances in Water Resources, 56, 14-26, 2013
Keywords:
Iterative stochastic ensemble method; Orthogonal matching pursuit; Parameter estimation; Sparse regularization; Subsurface flow models
  • Boosting iterative stochastic ensemble method for nonlinear calibration of subsurface flow models
    A. El-Sheikh, R. Tavakoli, M. Wheeler, and I. Hoteit
    Computer Methods in Applied Mechanics and Engineering, 259, 10-23, 2013
Keywords:
Boosting; Gaussian process regression; Iterative stochastic ensemble method; Karhunen-Loève expansion; Parameter estimation; Subsurface flow models
  • A MITgcm/DART ocean prediction and analysis system with application to the Gulf of Mexico
    I. Hoteit, T. Hoar, G. Gopalakrishnan, J. Anderson, N. Collins, B. Cornuelle, A. Kohl, and P. Heimbach
    Dynamics of Atmospheres and Oceans, 63, 1-23, 2013
Keywords:
Data assimilation; Ensemble Kalman filter; Gulf of Mexico; Ocean state estimation
  • ​A iterative stochastic ensemble method for parameter estimation of subsurface flow models
    A. El-Sheikh, M. Wheeler, and I. Hoteit
    Journal of Computational Physics, 242, 696-714, 2013
Keywords:
Iterative stochastic ensemble method; Parameter estimation; Regularization; Subsurface flow models
  • Atmospheric forcing of the winter air-sea heat fluxes over the northern Red Sea
    V. Papadopoulos, Y. Abualnaja, A. Bower, D. Raitsos, H. Kontoyiannis, and I. Hoteit
    Journal of Climate, 26, 1685-1701, 2013
Keywords:
Air-sea interaction; Extreme events; Forcing; Surface fluxes; Trends
  • Assessing a robust ensemble-based Kalman filter for efficient ecosystem data assimilation of the Cretan Sea
    G. Triantafyllou, I. Hoteit, X. Luo, K. Tsiara, and G. Petihakis
    Journal of Marine Systems, Volume 125, September 2013, Pages 90–100
Keywords:
Coupled biophysical models; Data assimilation; Ensemble Kalman filtering; H infinity filter; Kalman filter
  • A reduced adjoint approach to variational data assimilation
    U. Altaf, M. Algharamti, A. Heemink, and I. Hoteit
    Computer Methods in Applied Mechanics and Engineering, 254, 1-13, 2013
Keywords:
4DVAR; Model order reduction; Proper orthogonal decomposition
  • Linear vs. nonlinear filtering with scale selective corrections for balanced dynamics in a simple atmospheric model
    A. Subramanian, I. Hoteit, B. Cornuelle, and H. Song
    Journal of Atmospheric Sciences, 69, 3405-3419, 2012
Keywords:
Bayesian methods; Data assimilation; Filtering techniques; Kalman filters; Nonlinear dynamics; Stability
  • Ensemble Kalman filtering with residual nudging
    X. Luo and I. Hoteit
    Tellus A, 64, 17130, 2012
Keywords:
Data assimilation; Ensemble kalman filter; Residual nudging
  • ​Data Assimilation within the Advanced Circulation (ADCIRC) Modeling Framework for Hurricane Storm Surge Forecasting
    T. Buttler, U. Altaf, C. Dawson, I. Hoteit, X. Luo, and T. Mayo
    Monthly Weather Review, 140, 2215-2231, 2012
Keywords:
Data assimilation; Filtering techniques; Hurricanes/typhoons; Kalman filters; Storm surges
  • On an ensemble Kalman filter with simplified divided difference approximation
    X. Luo and I. Hoteit, I. Moroz
    Physica-D, 241, 671-680, 2012
Keywords:
Data assimilation; Divided difference approximation; Ensemble Kalman filter
  • Particle Kalman filtering: A nonlinear Bayesian framework for ensemble Kalman filters
    I. Hoteit, X. Luo and D.T. Pham
    Monthly Weather Review, 140, 528-542, 2012
Keywords:
Bayesian methods; Data assimilation; Ensembles; Filtering techniques; Kalman filters
  • A new approach for the determination of the drag coefficient from the upper ocean response to a tropical cyclone: a feasibility study
    S. Zedler, R. Korty, G. Kanschat, and I. Hoteit
    Journal of Oceanography, 68, 227-241, 2012
Keywords:
Drag coefficient adjustment under high winds; Inverse modeling: Bayesian inference; Ocean response to a hurricane; Upper ocean mixing
  • ​Low-Rank Kalman filtering for efficient state estimation of subsurface advective contaminant transport models
    M. Elgharamti, I. Hoteit, and S. Sun
    Journal of Environmental Engineering, 138, 446-457, 2012
Keywords:
Aquifers; Contaminant transport; Kalman filter; Kalman filters; Low rank Kalman filtering; Pollutants; Singular evolutive Kalman filter; State estimation
  • A data assimilation tool for the Pagasitikos Gulf ecosystem dynamics: methods and benefits
    G. Korres, G. Triantafyllou, G. Petihakis, D. Raitsos, I. Hoteit, A. Pollani, S. Colella, and K. Tsiaras
    Journal of Marine Systems, 94, 102-117, 2012
Keywords:
Ecosystem modelling; High-resolution data assimilation; Ocean color; SEEK filter; SEIK filter
  • ​Abrupt warming of the Red Sea
    D.E. Raitsos, I. Hoteit, P.K. Prihartato, T. Chronis, G. Triantafyllou, and Y. Abu-Alnaja
    Geophysical Research Letters, Volume 38, Issue 14, 1 July 2011, Article number L14601
Keywords:
Air temperature; Changing environment; Climatic impact; Coral reef ecosystems; Global climate changes; Ground based; Key parameters; Marine temperatures; Northern Hemispheres; Red sea
  • Robust ensemble filtering and its relation to covariance inflation in the ensemble Kalman filter
    X. Luo, and I. Hoteit
    Monthly Weather Review, 139, 3938-3953, 2011
Keywords:
Ensembles; Filtering techniques; Kalman filters
  • Review of ensemble and particle filtering with application to the history matching problem in reservoir
    X. Luo, I. Hoteit, L. Duan and W. Wang
    Book chapter in “Nonlinear Estimation and Applications to Industrial Systems Control”, Editor G. Rigatos, 2011
Keywords:
Data assimilation; Ensemble Kalman filter; Gaussian sum filter; History matching in reservoir models; Nonlinear Kalman filter; Particle filter; Sequential Bayesian filtering
  • Data assimilation using Bayesian filters and B-spline geological models
    L. Duan, C. Farmer, I. Hoteit, X. Luo, I. Moroz
    Journal of Physics, vol.290, pp.012004
Keywords:
Control point; Curved channels; Data assimilation; Differentiability; Ensemble filter; Splines
  • Simultaneous perturbation stochastic approximation for tidal models
    U. Altaf, A. Heemink, M. Verlaan, and I. Hoteit
    Ocean Dynamics, 61, 1093-1105, 2011
Keywords:
Numerical tidal modeling; Parameter estimation; Simultaneous perturbation; Stochastic approximation
  • ​An adaptive approach to mitigate background covariance limitations in the ensemble Kalman filter
    H. Song, I. Hoteit, B. Cornuelle, and A. Subramanian
    Monthly Weather Review, 138, 2825-2845, 2010
Keywords:
Adaptive scheme; Back projection; Data coverage; Ensemble Kalman Filter; Ensemble members; Missing information; Model errors
  • ​Reply to “Comment on Ensemble Kalman filter with the unscented transform”
    X. Luo, L.M. Moroz, and I. Hoteit
    Physica-D, Volume 239, Issue 17, 1 September 2010, Pages 1662–1664
Keywords:
Data assimilation; Ensemble Kalman filter; Ensemble transform Kalman filter; Ensemble unscented Kalman filter; Unscented transform
  • ​An eddy permitting, dynamically consistent adjoint-based assimilation system for the tropical pacific: Hindcast experiments in 2000
    I. Hoteit, B. Cornuelle, and P. Heimbach
    Journal of Geophysical Research, Volume 115, Issue 3, March 2010, Article number C03001
Keywords:
Climatology; Oceanography; Salinity measurement; Tropics; Uncertainty analysis; Model checking; Pacific Ocean
  • ​Forecasting the Aegean Sea hydrodynamics within the POSEIDON-II operational system
    G. Korres, K. Nittis, L. Perivoliotis, K. Tsiaras, A. Papadopoulos, I. Hoteit, and G. Triantafyllou
    Journal of Operational Oceanography, 3, 37-49, 2010
Keywords:
POSEIDON-II operational system; Aegean Sea; Hydrodynamics; Singular Evolutive Extended Kalman (SEEK)
  • ​Scaled unscented transform Gaussian sum filter: theory and application
    X. Luo, L.M. Moroz, and I. Hoteit
    Physica-D, 239, 684-701, 2010
Keywords:
Data assimilation; Ensemble Kalman filter; Gaussian sum filter; Scaled unscented Kalman filter
  • ​Eastern mediterranean biogeochemical flux model: simulations of the pelagic ecosystem
    P. Petihakis, G. Triantafyllou, K. Tsiaras, G. Korres, A. Pollani, and I. Hoteit
    Ocean Science, 5, 29-46, 2009
Keywords:
Biogeochemical cycle; Ecosystem modeling; Forecasting method; Hydrodynamics; Mediterranean Sea
  • ​Assessing 4DVAR and predictability of coastal high frequency radar in San Diego
    I. Hoteit, B. Cornuelle, S.Y. Kim, E. Terrell, and G. Forget
    Dynamics of Atmospheres and Oceans, 48, 175-197, 2009
Keywords:
4D-VAR; Coastal modeling; HF Radar; Predictability; San Diego
  • ​A high-resolution data assimilation system for the Aegean Sea hydrodynamics
    G. Korres, K. Nittis, I. Hoteit, and G. Triantafyllou
    Journal of Marine Systems, 77, 325-340, 2009
Keywords:
Aegean Sea; Data assimilation; Ferrybox data; POM model; SEEK filter
  • ​A reduced-order simulated annealing approach for four-dimensional variational data assimilation
    I. Hoteit
    Journal of Numerical Methods in Fluids, 58, 1181-1199, 2008
Keywords:
4D-VAR; Data assimilation; Order-reduction; Simulated Annealing; Tropical pacific
  • ​Impact of resolution and optimized ECCO forcing on simulation of the tropical pacific
    I. Hoteit, B. Cornuelle, V. Thierry, and D. Stammer
    Journal of Atmospheric and Oceanic Technology, 25, 131-147, 2008
Keywords:
Atmospheric movements; Climatology; Computer simulation; Satellite imagery; Pacific Ocean
  • ​A new approximate solution of the optimal nonlinear filter for data assimilation in meteorology and oceanography
    I. Hoteit, D.T. Pham, G. Triantafyllou, and G. Korres
    Monthly Weather Review, 136, 317-334, 2008
Keywords:
Approximation theory; Covariance matrix; Kalman filters; Mathematical models; Mediterranean Sea
  • ​Assimilation of ocean colour data into a biochemical flux model of the Eastern Mediterranean Sea
    G. Triantafyllou, G. Korres, I. Hoteit, G. Petihakis and A.C. Banks
    Ocean Science, 3, 397-410, 2007
Keywords:
Assimilation efficiency; Biogeochemistry; Ocean color; SeaWiFS; Three-dimensional modeling
  • ​Using low-rank ensemble Kalman filters for data assimilation with high dimensional imperfect models
    I. Hoteit, G. Triantafyllou, and G. Korres
    Applied Numerical Analysis and Computational Mathematics, 2, 67-78, 2007
Keywords:
Data assimilation; Kalman filtering; Low-rank kalman filtering; Monte-carlo methods
  • ​Data assimilation into a Princeton ocean model of the Mediterranean Sea using advanced Kalman filters
    G. Korres, I. Hoteit, and G. Triantafyllou
    Journal of Marine Systems, 65, 84-104, 2007
Keywords:
Data assimilation; Kalman filter; POM model; SEEK filter; SEIK filter
  • ​Efficiency of reduced-order time-dependent adjoint data assimilation approaches
    I. Hoteit, and A. Köhl
    Journal of Oceanography, 62, 539-550, 2006
Keywords:
4DVAR; Adjoint method; Data assimilation; EOFs; Order reduction
  • ​Treating strong adjoint sensitivities in tropical eddy-permitting variational data assimilation
    I. Hoteit, B. Cornuelle, A. Köhl, and D. Stammer
    Quarterly Journal of the Royal Meteorological Society, 131, 3659-3682, 2006
Keywords:
Adjoint method; Open boundaries; Tropical Pacific
  • ​Ecosystem modeling and data assimilation of physical and biogeochemical processes in shelf and regional areas of the Mediterranean Sea
    G. Triantafyllou, I. Hoteit, G. Korres, and G. Petihakis
    Applied Numerical Analysis and Computational Mathematics, 2, 262-280, 2005

Keywords:
Data assimilation; Singular Evolutive Extended Kalman (SEEK) filter; Model error
  • Comparison of extended and ensemble based Kalman filters with low and high-resolution primitive equations ocean models
    I. Hoteit, G. Korres, and G. Triantafyllou
    Nonlinear Processes in Geophysics, 12, 755-765, 2005
Keywords:
Modeling; Ocean; Kalman filters
  • ​Efficient data assimilation into a complex 3D physical-biogeochemical model using a partially local Kalman filter
    I. Hoteit, G. Triantafyllou, and G. Petihakis
    Annales Geophysicae, 23, 1-15, 2005
Keywords:
Ecosystems; Ecology; Numerical modeling; Ocean prediction
  • ​An adaptively reduced-order extended Kalman filter for data assimilation in the tropical Pacific
    I. Hoteit, and D.T. Pham
    Journal of Marine Systems, 45, 173-188, 2004
Keywords:
Data assimilation; EOF analysis; Kalman filter; Ocean modeling; OPA model; ROEK filter
  • ​Toward a data assimilation system for the Cretan sea ecosystem using a simplified Kalman filter
    I. Hoteit, G. Triantafyllou, and G. Petihakis
    Journal of Marine Systems, 45, 159-171, 2004
Keywords:
Ecosystem modelling; Cretan Sea; Data assimilation; SEEK filter
  • ​A semi-evolutive Kalman filter with partially local correction basis for data assimilation in oceanography
    I. Hoteit, and D.T. Pham
    Oceanologica Acta, 26, 511-524, 2003
Keywords:
Data assimilation; Eof analysis; Forgetting factor; Seek filter
  • ​Evolution of the reduced state space and data assimilation schemes based on the Kalman Filter
    I. Hoteit, and D.T. Pham
    Journal of the Meteorological Society of Japan, 81, 21-39, 2003
Keywords:
Data assimilation; Kalman filter; Oceanic general circulation model; Remote sensing
  • ​A singular evolutive interpolated Kalman filter for efficient data assimilation in a 3-D complex physical-biogeochemical model of the Cretan Sea
    G. Triantafyllou, I. Hoteit, G. Petihakis
    Journal of Marine Systems, 40-41, 213-231, 2003
Keywords:
Coupled biogeochemical models; Data assimilation; Kalman filter
  • ​A singular evolutive extended Kalman filter to assimilate real in-situ data into a 1D marine ecosystem model
    I. Hoteit, G. Triantafyllou, and G. Petihakis, J. Allen
    Annales Geophysicae, 21, 389-397, 2003
Keywords:
Ocean prediction; Numerical modeling; Ecosystems; Ecology
  • ​Modelling the spatial and temporal variability of the Cretan Sea ecosystem
    G. Petihakis, G. Triantafyllou, A. J. Icarus, I. Hoteit, and K. Dounas
    Journal of Marine Systems, 36, 173-196, 2002
Keywords:
3D ecosystem model; Cretan Sea; Oligotrophic ecosystem
  • ​A simplified reduced order Kalman filtering and application to altimetric data assimilation in Tropical Pacific
    I. Hoteit, D.T. Pham, and J. Blum
    Journal of Marine Systems, 236, 101-127, 2002
Keywords:
Data assimilation; Forgetting factor; Kalman filter; OPA model; SEEK filter; SEIK filter
  • ​A semi-evolutive partially local filter for data assimilation
    I. Hoteit, D.T. Pham, and J. Blum
    Marine Pollution Bulletin, 43, 164-174, 2001
Keywords:
Data assimilation; EOF analysis; Reduced Kalman filtering; SEEK filter