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Baghdad Iraq
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Baghdad, Iraq

January 20, 2006
This ASAR APP image shows an area, about 105 km wide, centered over the city of Baghdad (orange tones in the center of the image) within the alluvial plain between the Tigris river (from right to center of the image) and Euphrates River (from center bottom to right hand side of the image).

The image is a color composite. The Red channel contains the HH polarized image, the green channel contains the VV polarized image and the blue channel contains the ratio between the amplitude in VV and HH.

Urban areas are visible in orange tones (for instance, city of Baghdad on both banks of the Tigris river) indicating high backscatter in HH. The yellow tones that dominates the image result from the bare soil and agricultural fields in this region (equally high backscatter in HH and VV).Dark maroon color spread all over the image indicates zone with sparse vegetation (medium value in HH and VV). Blue tones reveals area of low value in HH and VV like wet fields, seasonal lakes or sandy desert.

Clearly visible through blue lines, in the south west of Baghdad, the Saddam international airport. This image demonstrate the increased capabilities of the Advanced Synthetic Aperture Radar (ASAR) onboard the ENVISAT satellite as compared with the SAR sensor onboard the earlier ERS generation of satellites. The ENVISAT ASAR instrument is the first permanent space borne radar to incorporate dual polarization capabilities. Because the reflective properties of a surface are dependent on the polarization of the incoming radar signal, the use of more than one type of polarization provides with valuable extra information.

Technical Information:
  • Satellite: Envisat
  • Instrument: ASAR
  • Acquisition: 24-Feb-2003
  • Orbit nr: 5156
  • Center coordinates: lat. 33.10, lon. 44.49


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