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CERES Clouds Working Group Report - NASA

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• Acquire necessary auxiliary<br />

information!<br />

!- corr-k coefficients !<br />

!- solar constant !!<br />

- reflectance/emittance models !<br />

! e.g., 2.25 instead of 2.13 µm!<br />

! ! !!<br />

• imaginary index of refraction!<br />

!water ! ! ice!<br />

2.13 4.32 x 10 -4 ! 5.5 x 10 -4 !<br />

2.25 3.80 x 10 -4 ! 2.1 x 10 -4!<br />

!<br />

• ice less absorptive than water at<br />

2.2 µm, affects cloud detection<br />

and phase selection, as well as<br />

particle sizes!<br />

Aqua!<br />

VIIRS!

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