1 / 22

Airborne and Satellite Imaging for Shallow-Water Habitats

Airborne and Satellite Imaging for Shallow-Water Habitats. Survey Methods for Shallow-Water Habitat Mapping in New England Dept. of Interior Holdings and Estuarine Research Reserves Workshop 30 Sep. 2009. Mark Finkbeiner. What is It?. Optical energy- UV through NIR Analog

fox
Télécharger la présentation

Airborne and Satellite Imaging for Shallow-Water Habitats

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Airborne and Satellite Imaging for Shallow-Water Habitats Survey Methods for Shallow-Water Habitat Mapping in New England Dept. of Interior Holdings and Estuarine Research Reserves Workshop 30 Sep. 2009 Mark Finkbeiner

  2. What is It? Optical energy- UV through NIR Analog – Aerial photography Digital – Aerial multi-spectral imagery – Digital camera imagery

  3. Aerial Sensors • DMC (Z/I Imaging) • UltraCam XP (Vexcel- Microsoft) • ADS-80 (Leica) • GeoScanner (GeoVantage) • DMSC (Ocean Imaging) • DSS (Applanix) • Others

  4. Satellite Sensors • GeoEye-1 (GeoEye) • Orbview-2 • IKONOS (Space Imaging/GeoEye) • Quickbird (Digital Globe) • WorldView- 2 (Digital Globe) • SPOT

  5. Advantages • Comprehensive data • Familiar data structure • Amenable to both simple and advanced analysis methods • Captures land-water interface • Broad area coverage possible • Effective in shallow waters • Effective in complex landscapes • Being collected routinely for various other applications

  6. Disadvantages • Ineffective in deeper water • Limited by water clarity • Environmental considerations • Atmospheric conditions • Sea state • Turbidity • Sun angle • Tide

  7. Disadvantages • Ineffective in deeper water • Limited by water clarity • Environmental considerations • Atmospheric conditions • Sea state • Turbidity • Sun angle • Tide

  8. Disadvantages • Ineffective in deeper water • Limited by water clarity • Environmental considerations • Atmospheric conditions • Sea state • Turbidity • Sun angle • Tide

  9. Disadvantages • Ineffective in deeper water • Limited by water clarity • Environmental considerations • Atmospheric conditions • Sea state • Turbidity • Sun angle • Tide

  10. Disadvantages • Ineffective in deeper water • Limited by water clarity • Environmental considerations • Atmospheric conditions • Sea state • Turbidity • Sun angle • Tide

  11. Habitats Amenable to this Technology • Coastal emergent marsh • Seagrass meadows • Intertidal and shallow- subtidal shellfish beds • Macro algae • Shoreline condition (rocky shores, beaches, artificial)

  12. Habitats Amenable to this Technology • Coastal emergent marsh • Seagrass meadows • Intertidal and shallow- subtidal shellfish beds • Macro algae • Shoreline condition (rocky shores, beaches, artificial)

  13. Habitats Amenable to this Technology • Coastal emergent marsh • Seagrass meadows • Intertidal and shallow- subtidal shellfish beds • Macro algae • Shoreline condition (rocky shores, beaches, artificial)

  14. Habitats Amenable to this Technology • Coastal emergent marsh • Seagrass meadows • Intertidal and shallow- subtidal shellfish beds • Macro algae • Shoreline condition (rocky shores, beaches, artificial)

  15. Habitats Amenable to this Technology • Coastal emergent marsh • Seagrass meadows • Intertidal and shallow- subtidal shellfish beds • Macro algae • Shoreline condition (rocky shores, beaches, artificial)

  16. Habitats Amenable to this Technology • Coastal emergent marsh • Seagrass meadows • Intertidal and shallow- subtidal shellfish beds • Macro algae • Shoreline condition (rocky shores, beaches, artificial)

  17. Drivers of Acquisition Cost Aerial Satellite • Level of tidal control • Ferry/Staging time • Sensor selection • Flight line complexity • Spatial resolution • Spatial accuracy • Coverage area • Licensing • Reseller • Rectification order • Vintage • Specific tasking (off- nadir, cloud restrictions, etc.) • Coverage area

  18. Costs and Examples Aerial Image Acquisition Avg. $200 - $500/sq. mi. • South Carolina Coast $284/sq. mi. • North Carolina Coast $682/sq. mi. • Texas Coast $ Satellite Image Acquisition Avg. $300 - $500/sq. mi.* • Quickbird $72/sq. mi. min. $7,616 • IKONOS $57/sq. mi. min $5,700

  19. Drivers of Mapping Cost • Classification detail • Mapping method • Required accuracy • Coverage area • Minimum Mapping Unit

  20. Mapping Methods Method Time Effort Logistics • Manual digitization High High Low • Spectral clustering Med. Med. Med. • Feature analysis Low Med. High • Image segmentation Low High High Precision Method Repeatability • Manual digitization Low Low • Spectral clustering Med. Med. • Feature analysis High High • Image segmentation High High

  21. Costs and Case Studies Mapping $200 - $500/sq. mi. • South Carolina Coast $143/sq. mi. • Long Island South Shore $674/sq. mi.* • Texas Coast $207/sq. mi.

  22. Emerging Issues and Trends • Film is going away • Digital sensors provide additional bands, improved spatial accuracy, greater dynamic range, and a more streamlined process • Number and availability of airborne digital sensors is increasing • Satellite resolution is increasing dramatically • Satellite revisit cycles are decreasing

More Related