Gis for oil spill

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Information about Gis for oil spill

Published on September 17, 2015

Author: azolnai


1. GIS for Oil Spill 10 steps From NOAA GNOME To ArcMap Time Slider

2. GNOME Oil Spill Model Output Input into ArcMap Prepare the data Time slider Presentation Outline

3. • GNOME is a publicly available oil spill trajectory model that simulates oil movement due to winds, currents, tides, and spreading. • GNOME was developed by the Hazardous Materials Response Division (HAZMAT) of the National Oceanic and Atmospheric Administration Office of Response and Restoration (NOAA OR&R). • HAZMAT will use this model during spill response to calculate a “best guess” of a spill’s trajectory and the associated uncertainty in that trajectory.

4. (cont. from NOAA website) GNOME is used to: • Predict how winds, currents, and other processes might move and spread oil spilled on the water. • Learn how predicted oil trajectories are affected by inexactness ("uncertainty") in current and wind observations and forecasts. • See how spilled oil is predicted to change chemically and physically ("weather") during the time that it remains on the water surface.

5. Start GNOME with local file

6. Apply oil spill model and locale parameters

7. Model is run on NOAA application  Basic Inputs  Initial location and shape of Oil spill (Spill Map)  Date, time & volume of Oil disposed in the sea  Wind speed and direction  Data for currents & waves  Main Output  Volume of Oil that reaches / remains the beaches  Affected habitats, beds, anchorages etc  Locations for Mitigation and Remediation

8. Display is shown in ArcMap  Basic Output (cont.)  GNOME output data  Time series  Main Input  Gnome.dll from NOAA  Import file series  Each time-step a separate feature in separate geodatabase  WARNING  Very laborious

9. Basic ArcMap screen

10. Prepare data  Create File Geodatabase  Features in separate pGDBs all have the same name  fGDB allows to rename them sequentially  Create another Personal GDB  Create a Feature Class  Append from fGDB  Distinct features don’t overwrite  And time stamp is preserved

11. Format the Time Attributes

12. Add the Time Slider

13. Enjoy the Movie!

14. Thank You Video also on YouTube

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