Active and Passive Remote Sensing of Ice
Abstract
Fully polarimetric scattering of electromagnetic waves from snow and sea ice is studied with a layered random medium model and applied to interpret experimental data obtained under laboratory controlled conditions. The snow layer is modeled as an isotropic random medium. The sea ice is described as an anisotropic random medium due to the elongated form of brine inclusions. The underlying sea water is considered as a homogeneous half-space. The scattering effects of both random medium are described by three dimensional correlation functions with variances and correlation lengths corresponding to the fluctuation strengths and the physical geometry of the inhomogeneities, respectively. The strong fluctuation theory is used to calculate the effective permittivities of the random media. The distorted Born approximation is then applied to obtain the covariance matrix which describes th full polarimetric scattering properties of the remotely sensed media. (mm)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 26, 1990
- Accession Number
- ADA229648
Entities
People
- Son V. Nghiem
Organizations
- Massachusetts Institute of Technology