Any pointers for Free Satellite Imagery on the NET..

[Raj]

Hi:

We are in the area of conducting research in the realms of applications of Satellite Technology in Earth Sciences (MTPE). In this regards, there is an immediate need for procuring imagery from any part of the globe. Specifically, the characteristics of the images must be -

1) Spatial resolution of 3m or less
2) Revisitation period of 3-16 days covering the same area during different times
3) Nadir or off-nadir viewing angles
4) In Giff or Tiff or GeoTiff formats

If anyone can provide some pointers where the data is stored on the web for non-commercial purposes, please do not hesitate in sending me a message.

Some of the space-viewing orbiting stations include - Landsat 7 ETM+, Landsat 4-5, Landsat 1-5MSS, SPOT 2, SPOT 4, SPOT 5, SPOT 6, ERS-2, RADARSAT-1, RADARSAT-2, ORBVIEW 2, IRS-1D, IRS P3, IRS-P4 (OCEANSAT 1), IRS-P6 (RESOURCESAT 1), IRS P5 (CARTOSAT-1), CARTOSAT 2B, CARTOSAT 2A, TRMM, IKONOS 2, QUICKBIRD 2, WORLDVIEW-2, WORLDVIEW 1, OCEANSAT 2, GEOEYE 1, RAPIDEYE 1 2 3 4 5

Thanks in advance
Rajabhushanam