Microwave Brightness of Polar Firn as Measured by Nimbus 5 and 6 ESMR
- 1 January 1980
- journal article
- Published by Cambridge University Press (CUP) in Journal of Glaciology
- Vol. 25 (91) , 85-92
- https://doi.org/10.3189/s0022143000010303
Abstract
The microwave emission from a half-space medium characterized by coordinate dependent scattering and absorbing centers has been calculated by numerically solving the radiative transfer equation by the method of invariant imbedding. A Mie scattering phase function and surface polarization have been included in the calculation. Also included are the physical temperature profile and the temperature variation of the index of refraction for ice. Using published values of grain-size and temperature-profile data of polar firn, the brightness temperature has been calculated for the 1.55 cm and 0.8 cm wavelengths. For selected regions in Greenland and Antarctica, the results of our calculations are in reasonable agreement with the observed Nimbus-5 and Nimbus-6 ESMR data.Keywords
This publication has 3 references indexed in Scilit:
- Microwave Emissivity and Accumulation Rate of Polar FirnJournal of Glaciology, 1977
- On the Rates of Growth of Grains and Crystals in South Polar FirnJournal of Glaciology, 1969
- Dielectric Properties of Ice and Snow–a ReviewJournal of Glaciology, 1965