Satellite Imagery Characteristics, Uses and Delivery to GIS Systems. Wayne Middleton April PDF Free Download

Satellite Imagery Characteristics, Uses and Delivery to GIS Systems Wayne Middleton April 2014

About Geoimage Founded in Brisbane 1988 Leading Independent company Specialists in satellite imagery and geospatial solutions

Geoimage Imagery Partners Providing access to the largest range of satellite imagery in Australia 19 satellite/satellite systems

Geoimage Partners Image Processing Software Specialty Imagery Products Spatial Data Management

Outline Review of optical and radar satellite imagery, their characteristics and derived products Application examples and delivery into GIS software

Electromagnetic spectrum Gamma Ray to Radio Waves

JAXA/METI DigitalGlobe Geoimage Pan-sharpening

Optical Satellite Imagery Passive sensor - senses reflected light from ground surfaces using the sun as illumination source Categorized by spatial resolution: Medium (5 to 30 metres) High (>1 to 5 metres) Very high (Sub-metre to 1m)

Optical Satellite Imagery Worldwide coverage at some scale Imagery of inaccessible areas Repeat coverage Large historical archive

Map-up of sub-metre pan-sharpened multispectral data assessed as <10% cloud cover and acquired in 2012 and to May 2013 All VHR vendors to that date shown Pleiades 1A and 1B on top

Optical Satellite Imagery Programmable Monoscopic or stereo capture (for DEM generation) Spectral analysis Cloud affected Best resolution is 0.5 metres

Optical Satellite Imagery Medium resolution (5m to 30m): Landsat 1 to 5 (decommissioned), Landsat 7 (faulty) Landsat 8 ASTER (SWIR decommissioned) SPOT 1 to 4 (decommissioned) SPOT 5 Multispectral ALOS AVNIR-2 (decommissioned) SPOT 6 Multispectral SPOT 7 Multispectral (to be launched in 2014)

ClearView TM PNG

Optical Satellite Imagery High resolution (>1m to 5m): SPOT 5 and 6 Panchromatic and pan-sharpened multispectral SPOT 7 Panchromatic and pan-sharpened multispectral (to be launched in 2014) ALOS PRISM (panchromatic) and pan-sharpened AVNIR-2 (multispectral) (decommissioned) VHR Multispectral (e.g. GE-1 2m BGRN multispectral) RapidEye

Manilla International Airport SPOT 6 PS-imagery Airbus D&S

Optical Satellite Imagery Very high resolution (Sub-metre to 1m): IKONOS the oldest (1999) QuickBird WorldView-1, -2 and -3 (to be launched in 2014) GeoEye-1 Pleiades Kompsat-1, -2 and -3 (limited Australian archive) SkySat-1 and -2 (to be launched in 2014) include highdefinition video

WorldView-2 PS-imagery DigitalGlobe

DigitalGlobe 2014 WorldView-2 Brisbane (50cm)

Derived Products

Iran Pleiades imagery and DEM Airbus D&S

Radar Satellite Imagery Active sensor - provides own energy to detect features on the ground, can penetrate cloud & be acquired at night Categorized by wavelength: L-Band (15cm to 30cm) C-Band (3.75cm to 7.5cm) X-Band (2.4cm to 3.75cm)

Radar Satellite Imagery Worldwide coverage at some wavelength Imagery of inaccessible areas and/or areas affected by constant cloud cover Repeat coverage Programmable or in archive Large historical archive

PALSAR imagery JAXA/METI versus Landsat imagery over PNG

Radar Satellite Imagery L-Band (15cm to 30cm): JERS (decommissioned) ALOS PALSAR (decommissioned)

PALSAR FBS outlines over Central Papua JAXA/METI

Composite PALSAR Fine Beam Mode over Central Papua JAXA/METI

Radar Satellite Imagery C-Band (3.75cm to 7.5cm): Radarsat-1 and -2 ERS-1 and -2 (decommissioned) Envisat (decommissioned) X-Band (2.4cm to 3.75cm): TerraSAR-X / TanDEM-X COSMO-SkyMed

Applications

Application Examples Medium Resolution Optical Satellite Imagery ASTER Bands in VNIR, SWIR and TIR useful for spectral mapping for mineral exploration Availability limited to pre May 2007

Application Examples Medium Resolution Optical Satellite Imagery Electromagnetic spectrum Visible to SWIR

ASTER Spectral Processing

Application Examples High Resolution Optical Satellite Imagery SPOTMaps existing 2.5m pansharpened natural colour mosaic Dates vary from 2009 to 2012 over Australia Low cloud, accurate (5m to 10m CE90), low-cost, background image Uses include vector extraction to cost effectively map or update roads, hydrology, other natural and man-made features

NSW SPOTMaps imagery Airbus D&S

Application Examples Very High Resolution Optical Satellite Imagery GeoEye-1 0.5m stereo fresh capture DEM generation at 1m resolution 0.5m pan-sharpened background imagery DEM colour drape Terrain shaded relief showing discrete height classes

Chile GeoEye-1 PS RGB imagery DigitalGlobe 2013

Chile GeoEye-1 PS RGB imagery draped over generated DEM DigitalGlobe 2013

Chile GeoEye-1 Terrain Shaded Relief DigitalGlobe 2013

Application Examples Radar Satellite Imagery Global Seeps Database ( Airbus D&S) of off-shore oil slicks Constructed by systematically screening the world s offshore basins using a wide range of archive and fresh capture radar satellite data including ERS-1 and -2, TerraSAR-X, Radarsat-1 and 2, JERS-1, Envisat and PALSAR and optical satellite data including Landsat and ASTER

Current Australian Coverage Airbus D&S

Application Examples Radar Satellite Imagery Radar is used in preference to optical because it can penetrate cloud, can be acquired at night and is well suited to discriminate oil on the sea surface

Application Examples Radar Satellite Imagery Archive currently includes over 13500 interpreted scenes Database is continually updated, over 3000 new scenes were added in 2013 Slicks are characterized and ranked as probable natural seepage or man-made pollution based on a 3-part methodology

Application Examples Radar Satellite Imagery GIS-ready deliverables Description and interpretation results of radar scenes Slick interpretation results Ship and oil rig/platform locations Thumbnail images of each slick Radar images Geodatabase relationships between raster and vector data ArcGIS toolbar

25m chip over oil slick feature (left), 100m full radar satellite scene (right) Airbus D&S

Seep Browser ArcGIS toolbar Airbus D&S

Thank you www.geoimage.com.au

Satellite Imagery Characteristics, Uses and Delivery to GIS Systems. Wayne Middleton April 2014