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Super-Regional Testbed to Improve Models of Environmental Processes on the U.S. Atlantic and Gulf of Mexico Coasts Shelf Hypoxia Progress/ Plans John Harding.

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Presentation on theme: "Super-Regional Testbed to Improve Models of Environmental Processes on the U.S. Atlantic and Gulf of Mexico Coasts Shelf Hypoxia Progress/ Plans John Harding."— Presentation transcript:

1 Super-Regional Testbed to Improve Models of Environmental Processes on the U.S. Atlantic and Gulf of Mexico Coasts Shelf Hypoxia Progress/ Plans John Harding Northern Gulf Institute SURA Shelf Hypoxia Face to Face Meeting 3-4 Mar 2011

2 Long Term Goal (5-10 yr) Gulf of Mexico Shelf Hypoxia Develop and transition to operations a coupled biogeochemical/ physical model to forecast the real-time, synoptic scale development and evolution of physical and ecosystem processes in the northern Gulf of Mexico.

3 Initial Focus (1-2 yr) Evaluate impact of regional model boundary conditions on current coastal hypoxia modeling in the northern Gulf of Mexico Compare NOAA and EPA Approaches to Gulf hypoxia modeling Transition potential regional circulation component of this initial system as a baseline operational capability for application to: – real-time Coast Guard search and rescue operations – harmful algal bloom tracking – oil spill response applications Challenge the Testbed Cyberinfrastructure to Create Capability to Enhance Academic/Operational Collaboration

4 Motivation Why Gulf of Mexico Shelf Hypoxia? Multi-Agency (federal & State) Mississippi River/Gulf of Mexico Watershed Nutrient Task Force action step: “Continue to reduce uncertainty about the relationship between nitrogen and phosphorus loads and the formation, extent, duration, and severity of the hypoxic zone, to best monitor progress toward, and inform adaptive management of the Coastal Zone.” (http://www.epa.gov/msbasin/actionitems.htm)http://www.epa.gov/msbasin/actionitems.htm A near real-time synoptic scale hypoxia forecast capability will allow the capture of the true temporal variability of formation, extent, duration and severity of the Gulf of Mexico Dead Zone.

5 Frequency of Hypoxia 1985-2005 (from N.N.Rabelais, LUMCON, 2006)

6 Fennel/ ROMS Model Grid, Bathymetry & Sample Salinity Snapshot for 28 Jul 93 Courtesy Dr. Rob Hetland, TAMU What is impact of not having offshore forcing?

7 NRL Inter-American Seas Nowcast/ Forecast System (IASNFS) Real-Time Prediction Courtesy Dr. Dong Shan Ko, NRL

8 Loop Current/Eddy Frontal Location based on satellite thermal image IASNFS Real-Time Prediction Sea Surface Salinity/Current Courtesy Dr.Dong Shan Ko, NRL

9 Deepwater Horizon Incident Envisat1 Image from CSTARS, May 21, 2010 CSTARS Courtesy Nan Walker, LSU Earth Scan Lab

10 Sub project 1: Assess hydrodynamic skill (nested vs. unnested hindcasts) Assess the skill at predicting currents, temperature and salinity (including stratification) of the Fennel/ ROMS shelf model – Not nested – Nested within the NOAA CSDL NGOM (POM) – Nested within the NRL IASNFS (NCOM) – Nested within the NRL/FSU GoM (HYCOM) Assess same for the NOAA CSDL nGOM (FVCOM) nested within the NOAA CSDL NGOM (POM) Allows a five way test bed for skill assessment between two different shelf models and three basin models using the same data and comparable evaluation techniques.

11 Sub-project 2a: Assess hypoxia skill (unnested vs. nested hindcasts) Assess the skill at predicting oxygen distributions of the coupled Fennel/ ROMS model – Not nested – Nested within the NOAA CSDL NGOM (POM) – Nested within the NRL IASNFS (NCOM) – Nested within the NRL/FSU GoM (HYCOM) Allows evaluation of the ecosystem model consistent with the hydrodynamic model evaluation

12 NRL Coastal Circulation Model coupled with EPA Ecosystem Model (Nested in NRL IASNFS) EPA Sampling StationsEPACOM Model Domain Courtesy Dr. Dong Shan Ko, NRL

13 Sub-project 2b: Assess hypoxia skill (different hypoxia approaches) Assess the skill at predicting oxygen distributions of the coupled Fennel/ ROMS model and the coupled EPA GEM-Ko/ NCOM model both nested with the NRL IASNFS. Allows cross comparison of two hypoxia model approaches GEM: Eldridge & Roelke (2010) Ecosystem Model, 3D modifications by Ko

14 NAVOCEANO AMSEAS–NCOM Domain and Bathymetry Courtesy Dr. Frank Bub, NAVOCEANO

15 Sub-project 3: Evaluate and Transition NAVOCEANO AMSEAS Evaluate and transition (from pre-operations to operations) the 3 km AMSEAS (NCOM) nowcast/forecast system; Provides near-term operational capability relevant to both future operational hypoxia applications as well as: – real-time Coast Guard search and rescue operations – harmful algal bloom tracking – oil spill response applications * Begin transition of NGI Developmental OceanNOMADS to NOAA NCDDC OceanNOMADS – Planned NODC version of NCDC National Operational Model Archive and Distribution System Note: NAVOCEANO pre-operational AMSEAS, NRL R&D IASNFS, & NOAA NGOM POM among others were applied in NOAA ORR DHI forecasts

16 Project Leads John Harding, NGI – Shelf Hypoxia Modeling Team Rob Hetland, TAMU – Sub project 1: Assess hydrodynamic skill (nested vs. unnested hindcasts) Katja Fennel, Dalhousie – Sub-project 2a: Assess hypoxia skill (unnested vs. nested hindcasts); – Sub-project 2b: Assess hypoxia skill (different hypoxia approaches) Jerry Wiggert, USM – Sub-project 3: Evaluate and Transition NAVOCEANO AMSEAS

17 Project Partners Frank Bub, NAVOCEANO * Scott Cross, NOAA NCDDC * Pat Fitzpatrick, MSU Rick Greene, EPA NHEERL * Courtney Harris, VIMS Matt Howard, GCOOS Dong Shan Ko, NRL John Lehrter, EPA NHEERL * Alan Lewitus, NOAA CSCOR * Bruce Lipphardt, U Del Steve Morey, FSU Rich Patchen, NOAA CSDL * Eugene Wei, NOAA CSDL* Jiangtao Xu, NOAA CSDL * Unfunded Advisors

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