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BEPERS pilot study: an experiment with X-band synthetic aperture radar over Baltic Sea ice
| Content Provider | Scilit |
|---|---|
| Author | Leppäranta, Matti Kuittinen, Rlsto Askne, Jan |
| Copyright Year | 1992 |
| Description | Remote-sensing methods are the primary ones used for ice mapping in the Baltic Sea. A major methodological improvement is now being introduced by satellite radars due to their weather independency and high resolution. To learn how to use ERS-1 synthetic aperture radar (SAR) data, an extensive field programme BEPERS (Bothnian Experiment in Preparation for ERS-1) with airborne SARs has been arranged. The BEPERS pilot study was undertaken in 1987 using the French VARAN-S X-band SAR. The SAR was flown on 1 day over four study areas of size approximately 10 km x 50 km, and intensive validation observations were made. The data were most useful for the education they provided on how to work with SAR in sea-ice mapping. They have been used for developing SAR image-analysis methods, back-scatter modelling investigations and geophysical validation of SAR imagery. Cleaning-up of images consisted of speckle reduction and segmentation. Back-scatter characteristics of undeformed ice and ridges were examined. Ice-type classification was based on the box-classification method. Eight ice types were defined but basically only two types, undeformed ice/open water and deformed ice, could be discriminated. Two basic problems of high practical importance remained: how to discriminate between (1) open water and undeformed ice, and (2) ridged ice and brash ice. The data further showed illustrative examples of SAR imagery over sea ice. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/B7A33554B615CEB32950716CEC5932FA/S0022143000009564a.pdf/div-class-title-bepers-pilot-study-an-experiment-with-x-band-synthetic-aperture-radar-over-baltic-sea-ice-div.pdf |
| Ending Page | 35 |
| Page Count | 13 |
| Starting Page | 23 |
| ISSN | 00221430 |
| e-ISSN | 17275652 |
| DOI | 10.1017/s0022143000009564 |
| Journal | Journal of Glaciology |
| Issue Number | 128 |
| Volume Number | 38 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Journal of Glaciology Remote Sensing Sar Imagery Ice Mapping X Band Bepers Pilot Study |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth-Surface Processes |
