Tunis Tunisia

SAR Orbit number: 42969

9 July 2003

Description:
This ERS-2 Synthetic Aperture Radar (SAR) multitemporal colour composite image is centred over Tunis (bright area centre image), the capital of Tunisia and a port on Lake Tunis, located in the northeast region of the country. Clearly visible is the access from the city to the Gulf of Tunis (an arm of the Mediterranean) by the canal (right of the city) that terminates at the subsidiary port, Halq al Wadi (La Goulette). On the west and south sides of the city are the Tell Atlas Mountains, where fertile valleys and plains may be observed interspersed among the mountains. The black X shape pattern northwest of Tunis is the city's airport. The image is made of three ERS-2 SAR PRI (Precision Radar Image) images acquired on different dates and assigning a colour (RGB) to each date of acquisition.

Technical Information:

• Instrument: Synthetic Aperture Radar (SAR)
• Dates of Acquisition: Red: 26 March 2003, Green: 25 April 2001, Blue: 9 July 2003
• Orbit number: 41466, 31446 - 42969
• Instrument features: 25 meter resolution
• Coordinates:

NE Lat/Long: N 37.25 / E 10.74
NW Lat/Long: N 37.07 / E 9.66
SW Lat/Long: N 36.17 / E 9.06
SE Lat/Long: N 36.35 / E 10.97

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Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry