Title :
Passive microwave radiometry, fractals, and ocean dynamics
Author :
Raizer, Victor Y.
Author_Institution :
Science and Technology Corporation, NOAA Environ. Technol. Lab., Fairfax, VA, USA
Abstract :
An idea to explore fractal structures in the field of ocean microwave radiance is suggested. To solve this problem we must be able to relate natural ocean surface features to their thermal microwave emission signatures. This task has two problems: (1) the study of hydrodynamic fractal structures in the ocean, and (2) the creation of an adequate microwave imaging model. One possibility is to consider a fractal model of the ocean surface with scaling (power law) wave number spectra. Microwave emission effects from a rough water surface are calculated quite using a small-perturbation approach well known in the ocean passive microwave radiometry. Combined computer simulations allow us to generate microwave fractal images and local patterns. Some related experimental data have been found previously during polarimetric scanning radiometer measurements
Keywords :
fractals; microwave imaging; oceanographic techniques; radiometry; remote sensing; fractals; hydrodynamic structures; microwave imaging model; natural ocean surface features; ocean dynamics; ocean microwave radiance; ocean passive microwave radiometry; passive microwave radiometry; rough water surface; scaling wave number spectra; small-perturbation approach; thermal microwave emission; Fractals; Hydrodynamics; Microwave imaging; Microwave radiometry; Ocean temperature; Photothermal effects; Rough surfaces; Sea surface; Surface roughness; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.976805
