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Radarsat satellite imagery
New generation Radarsat-2 satellite engineered by CSA Canadian Space Agency and MDA (MacDonald, Dettwiler and Associates Ltd.) was launched in December 2007 from Baikonur Cosmodrome into sun-synchronous orbit of 798 km altitude and 98.6° declination with circuit of 100.7 minutes. Radarsat-2 is fitted with synthetic aperture side-viewing radar, providing unique swath width modification and spatial resolution, as well as Radarsat-1. The radar images the Earth in the Ñ-band with 5.6 cm wavelength and polarization modification (HH, VH, HV, VV), in 10 - 60° angular range. Active orbit lifetime is 7 years at least. 3 m spatial resolution in 20 m swath width is a maximum in Ultra-Fine mode.
Radarsat-2 satellite imagery applications
- Creation and refreshing of topographical maps and special plans up to 1:25 000 scale
- DEM and DSM high resolution creation (up to 3-6 meters height accuracy)
- All-weather survey of natural and anthropogenic catastrophes.
- Ice-flow evaluation and water storage estimation.
- Water area monitoring (oil pollution extension, flood tides, vessel allocation, ice-flow environment, etc.)
- Crop mapping, detection of the plantings condition, precision farming.
- Mapping growing stock, remote identifying species composition of stand, monitoring forest state and devastation.
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Basic characteristics:
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Launch date: December 14, 2007 |
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Spectral bands (mkm): |
5.6 ñm (Ñ-band) |
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Mpode: |
Swatch Width |
Resolution
Range x Azimuth |
Survey angular region |
Polyrisation |
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Fine |
50 km |
8 x 8 m |
30° - 50° |
HH and HV
or
VH and VV |
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Standard |
100 km |
25 x 26 m |
20° - 49° |
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Wide |
150 km |
30 x 26 m |
20° - 45° |
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ScanSAR Narrow |
300 km |
50 x 50 m |
20° - 46° |
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ScanSAR Wide |
500 km |
100 x 100 m |
20° - 49° |
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Extended Low |
170 km |
40 x 26 m |
10° - 23° |
HH |
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Extended High |
75 km |
18 x 26 m |
49° - 60° |
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Fine Quad-pol |
25 km |
12 x 8 m |
20° - 41° |
HH, VV, HV, VH |
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Standard Quad-pol |
25 km |
25 x 8 m |
20° - 41° |
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Ultra-Fine |
20 km |
3 x 3 m |
30° - 40° |
One of: HH/HV/VH/VV |
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File format: |
CEOS, GeoTIFF upon request |
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Processing: |
Radiometric, sensor and geometric correction,
mapped to a cartographic projection - depending on processing level |
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Revisit time: |
From 2-3 days in ecquator within 500 km swatch width,
depending on mode and type of survey |
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Order implementation: |
1-14 days for archive data
2-30 days for new order |
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Minimum order area: |
One square scene with the length equal to swath width for any mode |
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