worldview 3 –changing the gamegisconference.gsd.spc.int/presentations_2015/day1/... · 0.2 0.25...

17/11/2015

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WorldView‐3 – Changing the GameESRI UC New Zealand 2015

Vandenberg Air Force Base, California | WorldView‐3 Launch | 13 August 2014

DigitalGlobe Proprietary and Business Confidential

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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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WorldView‐3 is a human made, spaceborneversion of the Mantis shrimp!

DigitalGlobe Proprietary and Business Confidential 20

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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Light‐Matter Interaction

Water Molecule | Light‐Matter interaction

“Spectral scientist wants

both”

reflection

absorption


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‐


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

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


Why SWIR is Special

Visible NIR

MWIR LWIR

UV

Material SignaturesAbsorption Features


15000


SWIR0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

240 2400

Refle

ctan

ce


Why SWIR is Special

Visible NIR

MWIR LWIR

UV


Sensing Capability


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


Why SWIR is Special

Visible NIR

MWIR LWIR

UV


Sensing Capability

SWIR is the Sweet Spot!


15000


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


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


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

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

400 900 1400 1900 2400

Refle

ctan

ce

Wavelength (nm)

WV‐3 Alunite

AVIRIS Alunite


High Quality SpectraWV‐3 vs. ASTERAlunite WV‐3: S3, S6, S7 | 7.5 m pixels

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

400 900 1400 1900 2400

Refle

ctan

ce

Wavelength (nm)

ASTER Alunite

WV‐3 Alunite

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0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

400 600 800 1000 1200 1400 1600 1800 2000 2200 2400

Refle

ctan

ce

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


0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

400 600 800 1000 1200 1400 1600 1800 2000 2200 2400

Refle

ctan

ce

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


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


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Roofing Materials


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Roofing Materials


Example:Vegetation

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Agricultural Mapping

La Serena, Chile | 40 cm | WorldView‐3


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

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

Finer TuningSWIR leaf moisture

Vegetation Spectra | 16 Band | WorldView 3

Depressed by leaf moisture


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


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


Wildfire smoke penetration in SWIR

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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


VriconDigitalGlobe and SAAB

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VRICON DSM


THANK YOU

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Atmospheric AdvantageBeijing (China) ‐ August 12, 2012

0.250 1.2500.750 1.0000.500


Atmospheric AdvantageBeijing (China) ‐ August 12, 2012

0.250 1.2500.750 1.0000.500

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Clarity Advantage


Example:Vegetation

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Agricultural Mapping

La Serena, Chile | 40 cm | WorldView‐3


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

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

Finer TuningSWIR leaf moisture

Vegetation Spectra | 16 Band | WorldView 3

Depressed by leaf moisture

worldview 3 –changing the gamegisconference.gsd.spc.int/presentations_2015/day1/... · 0.2 0.25...

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