Title :
Microwave transfer model differences in remote sensing of cloud liquid water at low temperatures
Author :
Lipton, Alan E. ; Griffin, Michael K. ; Ling, Alan G.
Author_Institution :
Atmos. & Environ. Res. Inc., Cambridge, MA, USA
fDate :
1/1/1999 12:00:00 AM
Abstract :
Results from two popular models for the complex permittivity of liquid water were compared, as applied to radiative transfer computations in the 5-250 GHz range. Substantial differences were found in situations with cloud temperatures below 0°C. Simulations of cloud liquid water retrievals from satellite and ground-based instruments demonstrated that uncertainties in the models at low temperatures can lead to large retrieval errors
Keywords :
atmospheric techniques; clouds; radiometry; remote sensing; 5 to 520 GHz; EHF; SHF; THF; calculation; cloud liquid water; complex permittivity; error; liquid water retrieval; low temperature; measurement technique; microwave transfer model differences; radiative transfer computation; radiometry; remote sensing; simulation; Attenuation; Clouds; Electromagnetic wave absorption; Laboratories; Optical attenuators; Optical scattering; Permittivity; Remote sensing; Temperature sensors; Uncertainty;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
