Kuwaiti oil spill model demo using NOAA software and ROPME data

1. GIS for Oilspill Response Model
Ten steps
from NOAA GNOME model
thru ArcGIS time slider
to ArcGIS Online sharing

2. 2010:
GNOME
Oil Spill Model Output
Input into ArcMap
Prepare the data
Time slider
2015:
ArcGIS Online
Presentation Outline

3. http://response.restoration.noaa.gov/software/gnome/gnomeftp.html
• 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. (continued 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 ropme.org 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
 Note that ONBEACH / INWATER limit differs from map coastline

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 Personal
Geodatabase outputs all have the
same name
 File Geodatabase allows to rename
them sequentially
 And time stamp is preserved
 Later note: time stamp field [Age] is
Double format
 Time Slider accepted it as-is in
ArcMap
 To be converted to Date format in
ArcGIS Online

11. Format the Time Attributes

12. Add the Time Slider

13. Enjoy the Movie! (hover mouse over map)

14. Extra: Prepare for ArcGIS Online
 Time stamp (Age) is Double format
 AGOL will not post it as Time Aware
 Need to add Field (Days) as Date format

15. Convert to Date / Time
 Disable Time in the Feature
 Add Field
 ArcToolbox > Data Management >
Fields > Add Field
 Input Table: select Feature
 Field Type: Date
 Copy field
 Field Calculator: Days = [Age]
 Notice it’s ~ 1900
 Set date to when Model is run for
 Days = #dd/mm/yyyy# + [Age]
 Re-enable Time in the Feature

16. For ArcGIS Online
 Add basemap: Dark grey canvas
 Make feature symbol:
 INWATER a white circle
 ONBEACH a white cross
 Size: 10.0
 Mimic oilspill dispersion: size
inverse proportion to Age
 Symbology >
Advanced >
Size >
Expression: 50/[Age]
 Publish
 File >
Share As >
Map Package
In ArcMap
 Make feature symbol:
 INWATER an orange circle
 ONBEACH a red circle
 Size: 10.0
 Publish
 File >
Share As >
Service
 Add basemap: Dark grey canvas
 Notice: limit of the two symbols
doesn’t match the coastline
 NOAA model used ROMPE dataset
 likely had a coastline of different
vintage, scale or projection

17. or the webmap!Enjoy the video…

18. Thank You
OpenWare (Esri agents in Kuwait for original presentation)
Esri (Dawn Wright for encouraging story maps & web apps)
Esri(UK) (Esri agents in UK for ongoing technical support)