high-resolution satellite imagery applications denis collins research section vancouver forest...
TRANSCRIPT
![Page 1: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/1.jpg)
High-resolution Satellite Imagery High-resolution Satellite Imagery ApplicationsApplications
Denis Collins
Research Section
Vancouver Forest Region
![Page 2: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/2.jpg)
Project GoalsProject Goals
Determine feasibility & effectiveness of locating/mapping resource features using new satellite data
Utility of fusion with radar for winter monitoring
Linkage with change detection projects
![Page 3: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/3.jpg)
Team/ResourcesTeam/Resources
Collaboration between– Research– LIM– Interfor– DSI– FRBC – Inventory branch
![Page 4: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/4.jpg)
DescriptionDescription
Acquired 1m b/w and 4m MSS IKONOS imagery
3 different Radarsat-1 images Geocoded images Visual interpretation using Natural, NIR,
and PCA analysis
Http://www.for.gov.bc.ca/vancouvr/research/applications.htm
FOR MORE INFO...
![Page 5: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/5.jpg)
Radarsat-1/IKONOS coverageRadarsat-1/IKONOS coverage
Radarsat-1 F1 scene covers 50 x 50 km
IKONOS scene covers 55 km2.
AOI Escalante and Hesquiat watersheds
![Page 6: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/6.jpg)
Radarsat-1 imageRadarsat-1 image
Large landslides difficult to differentiate
![Page 7: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/7.jpg)
Radarsat-1Radarsat-1
Findings: – weather independent but requires
expert knowledge not available throughout organization
– resolution not sufficient for mapping large landslides
![Page 8: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/8.jpg)
Ikonos specsIkonos specs
Revisit schedule varies from 1-3 days
11 km swath width Orbits at altitude of
680 km
![Page 9: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/9.jpg)
IKONOSIKONOS
Strengths:– Provides good input for mapping, inventorying, monitoring, surveying– Information captured in digital format plus provides NIR and spectral
information– Allows digital processing/interpretation– 11 bit data better for shadowed areas
Weaknesses– Cost– Not stereo (Quickbird will have capability)– Cloud cover
![Page 10: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/10.jpg)
DEM capabilityDEM capability
![Page 11: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/11.jpg)
Vegetation monitoringVegetation monitoring
MSS provides spectral information in visible and NIR parts of electromagnetic spectrum
Differences in reflectance denote different vegetation– green-up– free growing– Forest health
![Page 12: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/12.jpg)
Vegetation Vegetation
![Page 13: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/13.jpg)
Ikonos - RGB imageIkonos - RGB image
![Page 14: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/14.jpg)
Ikonos Imagery ExamplesIkonos Imagery Examples
NIR image of landslide area– revegetation– landslide
classification– incipient landslides
Berm trace
Revegetated area
DeactivatedRoad
Road fill failure Naturalrock fall
![Page 15: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/15.jpg)
Predictive mappingPredictive mapping
![Page 16: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/16.jpg)
Tenure MappingTenure Mapping
![Page 17: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/17.jpg)
NIR for NAR of VR blockNIR for NAR of VR block
![Page 18: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/18.jpg)
CWD volume estimationCWD volume estimation
![Page 19: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/19.jpg)
RoadsRoads
Deactivation monitoring
Inventory Infrastructure
calculations for input to TSR’s
![Page 20: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/20.jpg)
AccuracyAccuracy
Image overlain with GPS points1.1 to 11.5 mSome distortion at edges of image
![Page 21: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/21.jpg)
Smearing due to Ortho softwareSmearing due to Ortho software
![Page 22: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/22.jpg)
Imagery CostImagery Cost
![Page 23: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/23.jpg)
CostsCosts
Image acquisition cost – Current price = $0.21/ha– $3360/1:20,000 map sheet– Image will have < 20% cloud cover
Image processing/orthorectification cost ($1500 for average scene)
![Page 24: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/24.jpg)
Current StatusCurrent Status
Barkley Sound TFL to TSA conversion project – Very little current data– 235 km2 costing $5272
Quickbird-2 will have stereo capability, 0.61m Pan/2.5m MSS
Hyperspectral capabilities with 256 channels eg. Aster
![Page 25: High-resolution Satellite Imagery Applications Denis Collins Research Section Vancouver Forest Region](https://reader036.vdocuments.us/reader036/viewer/2022081513/56649d8e5503460f94a76a7d/html5/thumbnails/25.jpg)
CONCLUSIONSCONCLUSIONS
High-resolution satellite imagery is a new tool that can be used cost effectively.
For aerial coverage - the sky is no longer the limit !