Sciences and Exploration Directorate

Dorukhan Ardag


Dorukhan Ardag's Contact Card & Information.
Phone: 301.614.6172
Org Code: 610.1
Mail Code 610.1
Greenbelt, MD 20771


Senior Research Scientist

Science Systems and Applications, Inc. (SSAI) - Goddard Space Flight Center, Greenbelt, MD

September 2022 - Present

  • Development and maintenance of the Swell workflow for the JEDI-GEOS coupled DA system.

Postdoctoral Scholar

Oregon State University - College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR

September 2019 - August 2022

  • Developed an EnKF based iterative inversion method to estimate bathymetry at the Columbia River Estuary, OR by utilizing biologging, drifter, and satellite data. Conducted adjoint sensitivity analysis of remote sensing data to investigate the temporal and spatial variability of observations' contributions to bathymetry estimation.
  • Received funds from an Oregon Sea Grant project as a CoPI with a total amount of $230,000 for a two year long project. Developed a robust swash zone monitoring system and initiated a comprehensive examination of the potential of cobble berms in mitigating coastal hazards.

Postdoctoral Associate

Taylor Engineering Research Institute - Jacksonville, FL

January 2019 - July 2019

  • Conducted tuning experiments for a novel wave modeling framework based on the Weak Turbulence Theory to compare against the current operational models.
  • Performed skill assessment of the ROMS/SWAN coupled model (COAWST) for the Columbia River, OR using in-situ and remote sensing measurements.

Graduate Research Assistant

University of Florida - Gainesville, FL

2015 - 2018

  • Proposed a new source term balance to improve third generation wave models.
  • Conducted a forensic study of Hurricane Matthew. Simulated coupled STWAVE + WISWAVE + ADCIRC hindcasts to examine of Northeast Florida’s resiliency in the face of a tropical storm.

Graduate Research and Teaching Assistant

University of North Florida - Jacksonville, FL

2012 - 2014

Developed Fortran versions of Discrete Interaction Approximation (DIA) and Two Scale Approximation (TSA) to examine spectral evolution of surface gravity waves. TA in a graduate level introduction to Fortran class.


  • Ph.D, Coastal and Oceanographic Engineering, University of Florida, Gainesville, FL
  • M.Sc., Coastal and Port Engineering, University of North Florida, Jacksonville, FL
  • B.Sc., Civil Engineering, Boğaziçi University, Istanbul, Turkey

Special Experience

  • Participant in Oregon State University (OSU) Social Justice Education Initiative Tier 1 & 2 workshops (2021)
  • Certified participant of the 8-week long "Master Recycler" program, a collaboration between OSU and Republic Services (2020)
  • Refugees’ Instructor for Citizenship Preparation at Southside Baptist Church in Jacksonville, FL (Sep 2017–2019)
  • Participant in Student-Police Dialogue at University of Florida, Gainesville Police Department (Oct 2015)

Selected Publications


2023. "Multivariate Data Assimilation at a Partially-mixed Estuary." Journal of Atmospheric and Oceanic Technology [10.1175/JTECH-D-22-0101.1] [Journal Article/Letter]

2022. "Sensitivity of Surface Currents to Bathymetry in a Partially Mixed Estuary with Applications to Inverse Modeling." Journal of Atmospheric and Oceanic Technology 39 (1): 111-124 [10.1175/jtech-d-21-0089.1] [Journal Article/Letter]

2020. "A New Approach for Modeling Dissipation due to Breaking in Wind Wave Spectra." Journal of Physical Oceanography 50 (2): 439-454 [10.1175/jpo-d-19-0160.1] [Journal Article/Letter]

2019. "Inconsistent Spectral Evolution in Operational Wave Models due to Inaccurate Specification of Nonlinear Interactions." Journal of Physical Oceanography 49 (3): 705-722 [10.1175/jpo-d-17-0162.1] [Journal Article/Letter]

2016. "Characteristics of directional wave spectra and implications for detailed-balance wave modeling." Ocean Modelling 103 38-52 [10.1016/j.ocemod.2015.09.009] [Journal Article/Letter]


2021. "Cormorants Are Helping Characterize Coastal Ocean Environments." Eos 102 [10.1029/2021eo163427] [Journal Article/Letter]