ESTIMATING CLOUD DROPLET EFFECTIVE RADIUS ... - CAST

ESTIMATING CLOUD DROPLET EFFECTIVE RADIUS FROM SATELLITE REFLECTANCE DATAModified Exponential Approximation___________________________________________________________________________________________________INDEXABSTRACT............................................................................................................................................................. iSAMMANFATTNING.......................................................................................................................................... ii1 INTRODUCTION .............................................................................................................................................. 31.1 BACKGROUND ............................................................................................................................................... 31.2 AIM ............................................................................................................................................................... 32 METHOD ........................................................................................................................................................... 42.1 THEORY......................................................................................................................................................... 42.1.1 Light scattering ..................................................................................................................................... 42.1.2 Radiative transfer ................................................................................................................................. 62.1.3 Asymptotic theory and Reflection function ........................................................................................... 92.1.4 Semi-analytical method and Modified Exponential Approximation ................................................... 122.2 DATA AND COMPUTATIONS ......................................................................................................................... 163. RESULTS AND DISCUSSION ..................................................................................................................... 204. VALIDATION AND ERROR ANALYSIS ................................................................................................... 225. CONCLUSIONS ............................................................................................................................................. 24APPENDIX .......................................................................................................................................................... 27REFERENCES .................................................................................................................................................... 291