The Ocean Archive System searches our original datasets as they were submitted to us, not individual points or profiles. If you want to search and retrieve ocean profiles in a common format, or objectively analyzed fields, your better option may be to use one of our project applications. See: Access Data
OAS insttype Detail for SAR, meta_version: 0. Current meta_version is: 0
| insttypes_id: | 227 |
|---|---|
| Codeset: | |
| Code: | |
| Term: | SAR |
| Description: | Synthetic Aperture Radar |
| Definition: | Synthetic-aperture radar (SAR) is a form of radar which is used to create images of an object, such as a landscape – these images can be 2D or 3D representations of the object. SAR uses the motion of the SAR antenna over a target region to provide finer spatial resolution than is possible with conventional beam-scanning radars. The distance the SAR device travels over a target creates a large "synthetic" antenna aperture (the "size" of the antenna). As a rule of thumb one can assume that the larger the aperture is, the higher the image resolution becomes, regardless whether physical aperture or synthetic aperture – this allows SAR to create high resolution images with comparatively small physical antennas.Many satellites have SAR imagery capabilities using different microwave bands (L,C,S,X etc.). Additional Information: http://www.radartutorial.eu/20.airborne/ab07.en.html http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/SAR_missions GCMD Instrument Keyword - "Earth Remote Sensing Instruments","Active Remote Sensing","Imaging Radars","","SAR","Synthetic Aperture Radar" |
| Context: | |
| Deprecated: | false |
| Metadata version: | 0 |
| Keydate: | 2015-02-27 11:13:03+00 |
| Editdate: | 2015-02-27 11:13:03+00 |