New developments in the General NOAA Operational Modeling Environment (GNOME)

Christopher H. Barker NOAA Office of Response and Restoration Emergency Response Division http://response.restoration.noaa.gov Chris.Barker@noaa.gov

Outline  • ORR  /  ERD  background  • GNOME  /  ADIOS  History  •  ComputaAonal  Structure  /  Features  • Oil  Database  •  ScripAng  /  Extending  • Web  Interface  

NOAA Emergency Response Division •  US  National  Contingency  Plan:  

NOAA  to  provide  Scientific  Support  Support  for  Hazardous  Materials  spill  response  in  Coastal  Waters  

•  “All  Hazards”  response  support  for  over  35  years  

•  Provide  support  for  100-­‐200  responses/year  •  In-­‐house,  interdisciplinary  team  of  spill  scientists  

•  A  24/7  National  network  of  expert  support  

ERD  Modeling  •  Model  development  in-­‐house  •  Model  developers  and  operaAonal  modelers  are  

the  same  team  •  We  understand  the  strengths  an  limitaAons  •  We  can  add  features  /  fix  bugs  on  the  fly  •  Tools  are  developed  specifically  to  support  

response  

Oil  Spill  Response  Model  Requirements  

•  Quick  to  iniAalize:  Answers  within  hours  •  Easy  to  Calibrate:  What  if  the  results  do  not  match  the  field  observaAons?  

• Wide  range  of  scales  •  Can  ingest  whatever  is  available:  

– HF  Radar,  circulaAon  models,  etc.  •  And  not  just  oil:  marine  debris,  whale  carcasses,  larvae,  bodies…  

GNOME  1:  • C++  • Desktop  GUI  

(Windows  and  Mac  Carbon)  • Code  is  tightly  integrated  • Primarily  Transport  • Weathering  Completely  Independent  (ADIOS)    

•  Limited  Batch  Mode  

GNOME  2  Goals  • Web  interface  •  Full  scripting  interface  •  Integrated  weathering  •  Easier  to  add  new  features  

–   Plug  in  your  own  Movers,  Weatherers,  Maps,  Element  Types  

•  Easier  to  test/maintain/improve  • Open  Source  development  model  

GNOME  Key  Features:  • Particle  Tracking  (Lagrangian  Elements)  

• Linear  Superposition  of  Physical  processes  

GNOME  Key  Components  • Movers  

Anything  that  moves  an  element  • Weatherers  

Changes  the  element’s  properties  • Maps  

Interaction  with  shoreline/bottom  •  Releases  

When  and  where  (and  what)  elements  are  injected  

Wide  Range  of  Problems  •  Subsurface  Blowout  

– Fully  3-­‐d  – Weathering  of  multi-­‐component  oil  

•  Tsunami  Debris  – Surface  – Wind  drift  only  – Very  large  time/spatial  scale  

•  Larva  modeling:  – 2  or  3-­‐d  – Larval  behavior  

GNOME  Inputs  •  Currents:  

–  Pattern  scaled  by  time  series  –  Pattern  scaled  by  components  of  wind  

–  Circulation  models:  •  Rectangular  grids  •  Curvilinear  grids  •  Unstructured  grids  

•  Winds:  –  Time  series  at  a  point  –  Gridded  winds  from  met  models  

Spill  Sources  •  Oil  Types:  

•  Non-­‐weathering  •  Simple  oils  •  Full  ADIOS  database  

•  Plume  model  •  Point  or  line  •  Instantaneous  or  continuous  •  Can  superimpose  multiple  spills  

Fate  /  Weathering  •  Pseudo-­‐component  model  

– Distillation  cuts  (SARA)  • Saturates  • Aromatics  • Asphaltines  • Resins  

•  ~1000  oils  in  database  – Estimations  for  missing  properties  – “Generic”  Oils  

Weathering  Algorithms  • Spreading  • Evaporation  • Natural  Dispersion  • Sedimentation  • Emulsion  formation  • Biodegradation  • Dissolution  

Weathering  Algorithms  • Spreading  • Evaporation  • Natural  Dispersion  • Sedimentation  • Emulsion  formation  • Biodegradation  • Dissolution  

New!  

Weathering  Algorithms  • Spreading  • Evaporation  • Natural  Dispersion  • Sedimentation  • Emulsion  formation  • Biodegradation  • Dissolution  

And  Improved!  

Response  OpAons  • Skimming  • Dispersant  Application  • Burning  

All  really  simple  user-­‐specified  effectiveness  

GNOME    ScripAng  Interface:  

•  Fully  Python  Scripted  •  Batch  processing  •  Add  your  own  front  end  •  Add  your  own  movers,  etc  in  

Python  (or  any  code  called  from  Python)  

GNOME  Web  Interface:  Running  on  NOAA  server  

•  Simple  use  (location  files)  •  Intuition  building  •  Educational  •  Download/save  your  setup.  

Run  your  own  server:                (could  be  your  laptop)  

•  Custom  locations,  etc.  

 

GNOME  Transport  Mode  

Oil  Budget  

Oil  Database  

GOODS  

ORR web site: http://response.restoration.noaa.gov

WebGNOME: http://gnome.orr.noaa.gov

The Source Code: https://github.com/NOAA-ORR-ERD !Chris Barker NOAA Office of Response and Restoration Emergency Response Division Chris.Barker@noaa.gov