ricevo e volentieri inoltro....
_______________________________
Landsat Data Continuity Mission Launched !
Posted by: "George Miliaresis" gmiliar@yahoo.com gmiliar
Date: Sun Feb 17, 2013 8:58 am ((PST))
The latest in the series of Landsat satellites the LDCM, Landsat Data Continuity Mission was launched on 11-2-2013 from Vandenberg Air Force Base in California. This satellite continues the four decades old legacy of the Earth Observation from space.
Landsat 8 has the ability to capture a 185 km swath of Earth and is meant to provide a regional and national scale view of our planet with a full picture of the planet’s surface every 16 days. Among the advancements are:
* up to 400 scenes collected per day, improving on the past 150-scene capacity
* a push-broom sensor to minimize moving parts and reduce failure points
* a new short-wave infrared band to help identify clouds
* a narrower pan-chromatic band to provide cleaner imagery at the 15m resolution
* new sensors to provide “ultra-blue” capacity to better study oceans and atmospheric aerosols
For more details:
http://www.satpalda.com/landsat-8-to-continue-the-landsat-legacy/Operational Land Imager (OLI):
Band # Spectral Region Wavelength Resolution
Band 1 Visible 0.433 – 0.453 µm 30 m
Band 2 Visible 0.450 – 0.515 µm 30 m
Band 3 Visible 0.525 – 0.600 µm 30 m
Band 4 Near-Infrared 0.630 – 0.680 µm 30 m
Band 5 Near-Infrared 0.845 – 0.885 µm 30 m
Band 6 SWIR 1 1.560 – 1.660 µm 30 m
Band 7 SWIR 2 2.100 – 2.300 µm 30 m
Band 8 Panchromatic 0.500 – 0.680 µm 15 m
Band 9 Cirrus 1.360 – 1.390 µm 30 m
Thermal Infrared Sensor (TIRS):
Band # Spectral Region Wavelength Resolution
Band 10 TIRS 1 10.3 – 11.3 µm 100 m
Band 11 TIRS 2 11.5 – 12.5 µm 100 m
Cartographic accuracy of 12 m or better (including compensation for terrain effects) is expected of LDCM data products.
--