| Type(s) |
Satellite/airborne derived information
Satellite/airborne derived information>Bi-dimensional information
|
| Owner |
The ALASKA SAR Facility Synthetic Aperture Radar Data : ASF |
| Organisation |
THE ALASKA SAR Facility |
| Abstract |
he wave spectra plots were generated upon request by the
Alaska SAR Facility's Geophysical Processor System (ASF GPS).
Full-resolution ERS-1 SAR image subscenes (i.e. sample radar
backscatter returns from ocean areas) were the algorithm's inputs.
These subscenes were passed through a two-dimensional Fast
Fourier Transform (FFT), the output of which was smoothed by a
Gaussian filter. Each subscene's dominant wave peaks were thus
determined, and the calculated waves' directions and wavelengths
were written to file. NCAR graphics routines were then utilized to
generate a contour plot of the spectrum power in polar
coordinates, with wave number as radius and wave direction
(relative to the image orientation) as angle. Peak wavelengths and
their directions were specified beneath the wave spectra plot.
|
| Cross Reference(s) |
http://www.asf.alaska.edu/dataset_documents/ers1_wave_spectra_dataset.html
|
| Discipline(s) |
Oceans & coasts
|
Point of Contact
Other Information
| Spatial Coverage & Location(s) |
Lat: 66.66° - Lon: -147.53°
American Samoa
|
| Temporal Coverage |
01/01/1999
|
| Language(s) of Resource |
English
|
| Parameter(s) |
EARTH SCIENCE
|
|
Resources of same Organisation 
The ALASKA SAR Facility Synthetic Aperture Radar Data : ASF
 Dataset (6)
 Service (6)
Resources of same Type
Dataset>Satellite/airborne derived information
Dataset>Satellite/airborne derived information>Bi-dimensional information
|
