Michael Dyer & Robert Bell GEOE 2022 Sensor Assignment Presentation WORLDVIEW-3 SENSOR 2/12/2018 11:36 PM Michael Dyer & Robert Bell GEOE 2022 Sensor Assignment Presentation Introduction - Names: Mikey Dyer and Robert Bell Going to speak about Worldview-3 sensor © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Overview Launched Aug 13th 2014 Developed by DigitalGlobe Inc ,USA 2/12/2018 11:36 PM Overview Launched Aug 13th 2014 Developed by DigitalGlobe Inc ,USA ITT Exelis was contracted to develop the imaging capability BATC was contracted to develop the space craft capability DigitalGlobe now capable of collecting 1 billion square km / year of earth imagery Launched Aug 13 2014 - launched on a Lockheed Martin Atlas V rocket from Vandenberg Air Force Base in California. Sensors developed by ITT exelis : huge role in US defence force with their command and control Also developed IKONAS, Geoeye -1, quickbird, aligned with Lockheed martin for GPS capabilities of course : ENVI Space craft developed by BATC: Ball Aerospace & Technologies Corporation: numerous space craft and being a part of numerous programs eg hubble With number of sensors avialble to DigitGlobe – collect 1 billion km/ year - approx. 2x earths surfaces per year Figure 1 : Artists rendition of Worldview 3 in space (image source: DigitalGlobe inc.) © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Specifications and Capabilities 2/12/2018 11:36 PM Specifications and Capabilities Retargeting capability (time to slew 200km = 12s). Sun-synchronous orbit, altitude: 617 km., period 97 minutes Swath width: 13.1 km, also supports multiple swath imaging. Push Broom Outputs: Projection: UTM, Lat/Long, State Plane Datum: NAD 83, WGS 84 Format: GeoTIFF, JPEG Due to the recent launch of worldview 3 the satellite is quite high spec – moment gyros to help retarget Sun-synchronous (receding) orbit, @ 617km : sun-synchronous orbit means a polar orbit that remains the same relative to the sun. Advantages: pass over positions on the earth at the same time of day always in the right amount of light for imagery Period is 97 minutes: approximately 7.5 km/sec , 450 km/min, 27,000 km/hr equals – 5.62 seconds to get home in lyndoch Swath width is 13.1 km (at NADIR) NADIR=Nadir also refers to the downward-facing viewing geometry of an orbiting satellite IFOV: Mono: 66.5 km x 112 km (5 strips) Stereo: 26.6 km x 112 km (2 pairs) Revisit: 1 m GSD: <1.0 day (GSD – ground sample distance: s the distance between pixel centres measured on the ground 4.5 days at 20° off-nadir or less Outputs: Projection: UTM, Lat/Long, State Plane Datum: NAD 83, WGS 84 Format: GeoTIFF, JPEG © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Resolutions World view 3 provides spatial resolution: panchromatic: .31 m Multispectral resolution: 1.24 m SWIR resolution: 3.7 m CAVIS resolution: 30 m World view 3 provides radiometric resolution: Panchromatic : 11 bit Multispectral : 11 bit SWIR: 14 bit World view 3 provides spatial resolution: panchromatic: .31 m Multispectral resolution: 1.24 m SWIR resolution: 3.7 m 30 m CAVIS resolution: 30 m World view 3 provides radiometric resolution: Panchromatic : 11 bit Multispectral : 11 bit SWIR: 14 bit

Comparison table The table illustrates the comparisons between earlier world view s and world view 3 Changes in technology = changes in spectral band Spectral bands Figure 2: Worldview-1,2,3 s (image source: DigitalGlobe)

Spectral Resolution Here is bands that worldview 3 operates in the spectrum we have: Panchromatic: 450 - 800 nm 8 Multispectral: Coastal: 400 - 450 nm Red: 630 - 690 nm Blue: 450 - 510 nm Red Edge: 705 - 745 nm Green: 510 - 580 nm Near-IR1: 770 - 895 nm Yellow: 585 - 625 nm Near-IR2: 860 - 1040 nm 8 SWIR Bands: SWIR-1: 1195 - 1225 nm SWIR-5: 2145 - 2185 nm SWIR-2: 1550 - 1590 nm SWIR-6: 2185 - 2225 nm SWIR-3: 1640 - 1680 nm SWIR-7: 2235 - 2285 nm SWIR-4: 1710 - 1750 nm SWIR-8: 2295 - 2365 nm 12 CAVIS Bands: Desert Clouds: 405 - 420 nm Water-3: 930 - 965 nm Aerosol-1: 459 - 509 nm NDVI-SWIR: 1220 - 1252 nm Green: 525 - 585 nm Cirrus: 1365 - 1405 nm Aerosol-2: 635 - 685 nm Snow: 1620 - 1680 nm Water-1: 845 - 885 nm Aerosol-1: 2105 - 2245 nm Water-2: 897 - 927 nm Aerosol-2: 2105 - 2245 nm Applications related to the bands are on bottom of the diagram. For example Figure 3 : Worldview-3 spectral graphs ad the associated uses (image source: DigitalGlobe)

Applications Environment, forestry and agriculture Vegetation health monitoring Land management Crisis management Oil/gas and Mining Exploration Operations – planning, cost analysis Reclamation Construction and Engineering NB: cost of Imagery The worldview 3 being a new sensor and having such broad usuage in the range in the em spectrum, worldview three has a broad range of applications. Starting off we have environment, forestry agriculture. -for example assessing the impacts an invasive species has on vegetation health -Land management for example assess the productivity of different agricultural land -Crisis managment, for example determining the radioactive fallout of fukishima and the impacts of the environment Industry applications -exploration for mining, oil/gas and minerals. Cost from ‘Apollo mapping’ which clearly states “the least expensive” imagery -operation, used for cost anaylsis, impacts on the environment and further expanding operations -crisis management, for example assess the damage and load if a mine was to collapse However considering its broad applications the biggest downside is the cost of imagery. Data source: 90 days Minimum order size: 25 km squared Product: 50-cm georeferenced + natural color or 4-band Price is $16 US per km (20.8 Aud) Means: minimum cost $520 for 90 day old 4 band images with a spatial resolution 50 cm whole of greater Adelaide - cost would be $73500

2/12/2018 11:36 PM Images Figure 4 (left) : Mine at Kalgoorlie , WA (image source: DigitalGlobe) Fig 4 is a mine at kalgoorlie at 0.3 m resolution Image may be useful for mine operations and cost analysis and on the digital globe website you have the ability to zoom in. Alternatively, such a detailed image of infrastructure can be used for military and security purposes Fig 5 is an animation on how world three imagery can be utilized to make a DEM, and the data processed to make a representation of the geological materials present. This a great application for mineral exploration Figure 5 (right) : Animation of worldview-3 imagery being utilised for geological survey (image source: DigitalGlobe) © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Figure 6 (left): Rainbow Range British Columbia - (source: DigitalGlobe) Top image is on Rainbow Range in Britsh Columbia – example of imagery that can be utilized for environmental analysis. The image has 40cm spatial resolution The bottom image represents geological survey simulated data between ASTER sensor and worldview3 ASTER was a payload in terra satellite launched in December 1999. the image on the right has a greater spatial resolution, enabling for a more accurate interpretation of the terrian and minerals present. Figure 7 (Right): Comparison between a derived geological survey images simulated from ASTER (left) and Worldview3 (Right) (source: Kruse & Perry 2013)

This imagery of both fig 8 and fig 9 was taken at temporal and spatial resolution by worldview 3 of happy camp fire in California. The difference been fig 8 did not use SWIR sensor where in fig. 9 the SWIR was used. You can see in fig. 9 that there is minimal smoke hindering the view of the fire and terrian. Considering the fire dangers in Australia SWIR would be a useful tool in the assessment of the fire if timely information could be attained The bottom link – links to digitalglobe which utilises a slide feature to illustrate SWIR capability Figure 8 (left) : Worldview 3 Image of the Happy Camp Fire -California Klamath National Park. This was taken without the SWIR Sensor (source: DigitalGlobe) Figure 9 (Right) : Worldview 3 Image of the Happy Camp Fire -California Klamath National Park. This was taken with the SWIR Sensor (source: DigitalGlobe) http://worldview3.digitalglobe.com/

References Digitalglobe 2014, Worldview 3 Datasheet, Digitalglobe, Worldview 3 Satellite Sensor, viewed 15 March 2015, available at [http://www.spaceimagingme.com/downloads/sensors/datasheets/DG_W orldView3_DS_2014.pdf.] DigitGlobe 2014, Worldview 3 – Above and Beyond, DigitGlobe, viewed 15th March 2015, available at [http://worldview3.digitalglobe.com/] Digitglobeblog 2014, Seeing a Better World, DigitGlobeblog, viewed 15th March 2015, available at [http://www.digitalglobeblog.com/2014/08/26/worldview-3-first-images/] Krause, FA & Perry, SL 2013, ‘Mineral Mapping Using Simulated Worldview-3 Short-Wave-Infrared Imagery’, Remote Sensing, Vol.5, pp. 2688-2703 Marchisio, G 2014, “An Overview of the WorldView-3 Sensor”, proceedings from the Geospatial World Forum 2014, viewed 15th March 2014, available at [http://www.geospatialworldforum.org/2014/presentation/Sensors/WGF%20 2014b%20-%20Giovanni%20Marchisio%20-%20DigitalGlobe_PDF.pdf.] Wang, Y, Yang, X, Xu, F, Leason, A & Megenta, S 2008, ‘An Operational system for sensor modelling and DEM generation of satellite pushbroom sensors’,. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. 37, pp. 745 - 75 Here are the resources used if you wish to investigate world view 3 further

Thank you for listening Any questions ?