The CloudSat Mission. CEE: 6900 -Environmental Application of Remote Sensing Abel Tadesse Woldemichael. Overview Clouds: are not just white things that break up the monotony of the sky, Actually are the fundamental stages of cycle of water in the atmosphere,
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CEE: 6900-Environmental Application of Remote Sensing
Abel Tadesse Woldemichael
These satellites have produced comprehensive pictures of global cloud cover,
This heat energy is what drives the planet’s climate and weather
The NASA CloudSat mission uses radar in a unique way to discover more about the interior of clouds and hence resolving much of the unknowns about clouds.
Results of CloudSat mission can help the world’s weather forecasters answer the following questions:
the Earth System Science Pathfinder Program sponsored missions are designed to address unique, specific, highly focused scientific issues, and to provide measurements required to support Earth science research
This is to account for very large and very small numbers
The CPR instrument will be flown in a sun-synchronous orbitat an 89o inclination angle, and a nominal altitude of 705 km. (720km?)
Each profile will have 125 vertical bins (slices, representing), and each bin will be approximately 240m thick. ( Vertical Spatial resolution
FIGURE: Instantaneous footprint when satellite travels one sample period or 0.16 sec
FIGURE: effect of “sliding” the instantaneous footprint along track for one sample period.
A CloudSat Data “Granule” is defined as one orbit (which is equal to earth's circumference, 40,022km),
This heating exerts a dominant influence on the large-scale circulation of the atmosphere as well as on deep convective cloud systems.
Cloud Radiative Heating (K/Day) for various thickness of clouds:
For example, high cloud layers heat the tropical atmosphere by more than 80 W m−2 (relative to clear skies)