worldview 3 –changing the gamegisconference.gsd.spc.int/presentations_2015/day1/... · 0.2 0.25...
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WorldView‐3 – Changing the GameESRI UC New Zealand 2015
Vandenberg Air Force Base, California | WorldView‐3 Launch | 13 August 2014
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WorldView‐3
• Atmospheric Compensation• Spatial Resolution• Short Wave Infrared (SWIR)
Primary Telescope
CAVISClouds, Aerosol, Vapor, Ice, Snow
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DigitalGlobe Proprietary and Business ConfidentialMt Fuji, Japan | WV‐3 | taken from 600 km above Earth’s surface & 2,500 km southeast
DigitalGlobe Proprietary and Business ConfidentialShanghai, China | 30 cm pan sharpened | WorldView‐3
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not to scale
f=16mf=13.3m
f=1.75mf=1.1m
f=.055mf=.400m
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http://theoatmeal.com/comics/mantis_shrimp
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http://theoatmeal.com/comics/mantis_shrimp
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http://theoatmeal.com/comics/mantis_shrimp
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http://theoatmeal.com/comics/mantis_shrimp
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DigitalGlobe Proprietary and Business Confidential
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WorldView‐3 is a human made, spaceborneversion of the Mantis shrimp!
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WorldView‐3 Bands: VNIR, SWIR and CAVIS
Blue Yellow
Red Edge
NIR 2 SWIR 2 SWIR 4 SWIR 6
SWIR 8
Coastal Green Red NIR 1 SWIR 1 SWIR 3 SWIR 5 SWIR 7
VNIR 1.2 meter
SWIR 3.7 meter
Aerosol 1 Aerosol 2 Water 2 NDVI - SWIR Snow Aerosol 3 Cloud Height
Parallax Desert Cloud
Green Water 1 Water 3 Cirrus CAVIS 30 meter
Aerosol 3
300 500 700 900 1100 1300 1500 1700 1900 2100 2300 2500
Wavelength (nm)
Most commercial imagers only have B, G, R, N1
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300 500 700 900 1100 1300 1500 1700 1900 2100 2300 250021
WV‐3 Band Comparison
Landsat 8 (30 m)
ASTER(15/30 m)
WV 2 ‐ 3(1.2 / 3.7)
WV 3 only
Visible (V)
Iron RocksMan madeVegPicture
Near Infrared (NIR) Short Wave Infrared (SWIR)
DigitalGlobe Proprietary and Business ConfidentialMineral examples representing Cuprite, Nevada 22
Kaolinite(clay)
Limestone(carbonate)
Mica
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DigitalGlobe Proprietary and Business Confidential 23Cuprite, Nevada USA | 0.5 m | WorldView‐1 | Panchromatic
Panchromatic
DigitalGlobe Proprietary and Business Confidential 24Cuprite, Nevada USA | 2.0 m | WorldView‐2 | Color
Color
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DigitalGlobe Proprietary and Business Confidential 25Cuprite, Nevada USA | 7.5 m | WorldView‐3 | S3‐S6‐S8
WorldView‐3Composite
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Clay
Limestone
Mica
Cuprite, Nevada USA | 7.5 m | WorldView‐3 | Mineral Indices
WorldView‐3Mineral Map
clay limestone
mica
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Light‐Matter Interaction
Water Molecule | Light‐Matter interaction
“Spectral scientist wants
both”
reflection
absorption
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Why Reflectance?radiance vs reflectance
Radiance is is ‘how much energy’.Things look different when they are brightly or dimly lit.
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Why Reflectance?radiance vs reflectance
Reflectance is a constant, predictable property of the material.Reflectance is a ratio; OUT/IN = reflectance
In In
Out Out
“Percent of light that is reflected!”
50% 50%
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Alunite: (KAl3(OH)6(SO4)2)
used in alloys, tools and equipment. Found in Italy, Hungary, USA and Australia.
Jarosite: (KFe3(OH)6(SO4)2)
used by collectors. Found in Spain, England, Germany, Bolivia, Mexico and ….. MARS!
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Exploitation
400 900 1400 1900 2400
Refle
ctance (o
ffset)
Wavelength (nm)
Alunite
Jarosite
Fe3+ SO4/OH‐OH‐
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SWIR0
0.05
0.1
0.15
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0.25
0.3
0.35
240 2400
Refle
ctan
ce
Wavelength (nm) [LOG SCALE]
Why SWIR is Special
Visible NIR
MWIR LWIR
UV
Kaolinite Spectrum | Light‐Matter interaction
15000
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SWIR0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
240 2400
Refle
ctan
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Wavelength (nm) [LOG SCALE]
Why SWIR is Special
Visible NIR
MWIR LWIR
UV
Material SignaturesAbsorption Features
Kaolinite Spectrum | Light‐Matter interaction
15000
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SWIR0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
240 2400
Refle
ctan
ce
Wavelength (nm) [LOG SCALE]
Why SWIR is Special
Visible NIR
MWIR LWIR
UV
Material SignaturesAbsorption Features
Sensing Capability
Kaolinite Spectrum | Light‐Matter interaction
15000
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SWIR0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
240 2400
Refle
ctan
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Wavelength (nm) [LOG SCALE]
Why SWIR is Special
Visible NIR
MWIR LWIR
UV
Material SignaturesAbsorption Features
Sensing Capability
SWIR is the Sweet Spot!
Kaolinite Spectrum | Light‐Matter interaction
15000
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Altered Rock = Remote Sensing
Pathfinder to GOLD!
Ore DepositModel
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Cracks in
the rock
RegionalVery low
concentration of GOLD.
LocalVery high concentration of GOLD!
GoldOre
Above Ground
Under Ground
Geysers
Hydrothermal Ore Deposit Model
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Images courtesy Discovery Channel
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Images courtesy Discovery Channel
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SWIR Band Combinations“ASTER” 467 (RGB)
WV‐3: S3, S6, S7 | 7.5 m pixelsASTER: 4, 6, 7 | 30 m pixels
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SWIR Band Combinations“ASTER” 467 (RGB)
WV‐3: S3, S6, S7 | 7.5 m pixelsASTER: 4, 6, 7 | 30 m pixels
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High Quality SpectraWV‐3 vs. AVIRISAlunite WV‐3: S3, S6, S7 | 7.5 m pixels
0.05
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0.25
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400 900 1400 1900 2400
Refle
ctan
ce
Wavelength (nm)
WV‐3 Alunite
AVIRIS Alunite
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High Quality SpectraWV‐3 vs. ASTERAlunite WV‐3: S3, S6, S7 | 7.5 m pixels
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Wavelength (nm)
ASTER Alunite
WV‐3 Alunite
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0
0.05
0.1
0.15
0.2
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0.35
0.4
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Refle
ctan
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Wavelength (nm)
ASTER Carbonate
WV‐3 Carbonate
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High Quality SpectraWV‐3 vs. ASTERCarbonate
WV‐3: S3, S6, S7 | 7.5 m pixels
Carbonate Feature
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0
0.05
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Refle
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Wavelength (nm)
ASTER Jarosite
WV‐3 Jarosite
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High Quality SpectraWV‐3 vs. ASTERJarosite
WV‐3: S3, S6, S7 | 7.5 m pixels
Iron Feature
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Mineral Mapping
Cuprite, Nevada USA | 7.5 m | WorldView‐3 Spectral Mineral Map
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Example:Building Material Identification
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DigitalGlobe Proprietary and Business ConfidentialRoofing Materials 47
This image cannot currently be displayed.
CorrugatedSteel
This image cannot currently be displayed.
CorrugatedFiberglass
DigitalGlobe Proprietary and Business Confidential 48Roofing Materials
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Solar PanelSteelRubber + Fiberglass, WhiteEPDM, WhiteCeramic, RedTile, RedPaint on MetalConcrete
Roofing Materials
DigitalGlobe Proprietary and Business Confidential 50Roofing Materials
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Solar PanelSteelRubber + Fiberglass, WhiteEPDM, WhiteCeramic, RedTile, RedPaint on MetalConcrete
Roofing Materials
DigitalGlobe Proprietary and Business Confidential 52Roofing Materials
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Solar PanelSteelRubber + Fiberglass, WhiteEPDM, WhiteCeramic, RedTile, RedPaint on MetalConcrete
Roofing Materials
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Example:Vegetation
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Agricultural Mapping
La Serena, Chile | 40 cm | WorldView‐3
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Environmental Vegetation Status: 4 band
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
400 600 800 1000 1200
Refle
ctan
ce
Wavelength (nm)
Juniper
Pinon Pine
Dry Grass
NDVI Bands
Vegetation Spectra | 4 Band | GeoEye 1
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EnvironmentalVegetation Status: 8 band + SWIR
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Wavelength (nm)
Juniper
Pinon Pine
Dry Grass
Finer TuningSWIR leaf moisture
Vegetation Spectra | 16 Band | WorldView 3
Depressed by leaf moisture
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Example:Smoke Transparency
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Image source: http://bit.ly/hccphotos
Happy Camp, California, 28 AUG 2014:• Worldview‐3 visible image, VNIR bands 5, 3, 2.• Worldview‐3 SWIR composite image, SWIR bands 6, 3, 1.• Heat map relative intensity.
WV‐3 Smoke Penetration and Thermal Response in SWIR Bands
Happy Camp, California, 2014 | Wildfire | Photographs
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Wildfires at Happy Camp, CA ‐ 2014
Image source: http://bit.ly/hccphotos
Happy Camp, California, 2014 | Wildfire | Photographs
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DigitalGlobe Proprietary and Business Confidential 61Happy Camp, California, 2014 | Worldview‐3 | 7.5 m | Color, SWIR, Heat Map
Wildfire smoke in color image
DigitalGlobe Proprietary and Business Confidential 62Happy Camp, California, 2014 | Worldview‐3 | 7.5 m | Color, SWIR, Heat Map
Wildfire smoke penetration in SWIR
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DigitalGlobe Proprietary and Business Confidential 63Happy Camp, California, 2014 | Worldview‐3 | 7.5 m | Color, SWIR, Heat Map
Wildfire smoke penetration + heat map in SWIR
DigitalGlobe Proprietary and Business Confidential 64Happy Camp, California, 2014 | Worldview‐3 | 7.5 m | Heat Map KML Drape
Heat Map as Overlay
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DigitalGlobe Proprietary and Business ConfidentialAdelaide, Australia | Color and SWIR | WorldView‐3
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1200 1400 1600 1800 2000 2200 2400
Backgrou
nd‐Sub
tracted Ra
dian
ce
Wavelength (nm)
Adjacent Background
Fire emission
Rise due to fire thermal emission.
Background
Fire thermal Emission in SWIR
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VriconDigitalGlobe and SAAB
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VRICON DSM
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THANK YOU
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Atmospheric AdvantageBeijing (China) ‐ August 12, 2012
0.250 1.2500.750 1.0000.500
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Atmospheric AdvantageBeijing (China) ‐ August 12, 2012
0.250 1.2500.750 1.0000.500
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Clarity Advantage
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Example:Vegetation
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Agricultural Mapping
La Serena, Chile | 40 cm | WorldView‐3
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Environmental Vegetation Status: 4 band
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
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Refle
ctan
ce
Wavelength (nm)
Juniper
Pinon Pine
Dry Grass
NDVI Bands
Vegetation Spectra | 4 Band | GeoEye 1
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EnvironmentalVegetation Status: 8 band + SWIR
0
0.1
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0.7
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Refle
ctan
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Wavelength (nm)
Juniper
Pinon Pine
Dry Grass
Finer TuningSWIR leaf moisture
Vegetation Spectra | 16 Band | WorldView 3
Depressed by leaf moisture