the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
SAR image observations of the A-68 iceberg drift
Ludwin Lopez-Lopez
Flavio Parmiggiani
Miguel Moctezuma-Flores
Lorenzo Guerrieri
Abstract. A methodology for examining a temporal sequence of Synthetic Aperture Radar (SAR) images as applied to the detection of the A-68 iceberg and its drifting trajectory, is presented. Using an improved image processing scheme, the analysis covers a period of eighteen months and makes use of a set of Sentinel-1 images. A-68 iceberg calved from the Larsen C ice shelf in July 2017 and is one of the largest icebergs observed by remote sensing on record. After the calving, there was only a modest decrease in the area (about 1 %) in the first six months. It has been drifting along the east coast of the Antarctic Peninsula and it is expected to continue its path for more than a decade. It is important to track the huge A-68 iceberg to retrieve information on the physics of iceberg dynamics and for maritime security reasons. Two relevant problems are addressed by the image processing scheme presented here: (a) How to achieve quasi-automatic analysis using a fuzzy logic approach to image contrast enhancement, and (b) Adoption of ferromagnetic concepts to define a stochastic segmentation. The Ising equation is used to model the energy function of the process, and the segmentation is the result of a stochastic minimization.
Ludwin Lopez-Lopez et al.


-
RC1: 'Review', Anonymous Referee #1, 18 Aug 2020
-
AC1: 'Response to the referee's comments', Miguel Moctezuma-Flores, 07 Sep 2020
-
AC1: 'Response to the referee's comments', Miguel Moctezuma-Flores, 07 Sep 2020
-
RC2: 'Report on “SAR image observations of the A-68 iceberg drift“ by Lopez-Lopez et al.', Anonymous Referee #2, 22 Sep 2020


-
RC1: 'Review', Anonymous Referee #1, 18 Aug 2020
-
AC1: 'Response to the referee's comments', Miguel Moctezuma-Flores, 07 Sep 2020
-
AC1: 'Response to the referee's comments', Miguel Moctezuma-Flores, 07 Sep 2020
-
RC2: 'Report on “SAR image observations of the A-68 iceberg drift“ by Lopez-Lopez et al.', Anonymous Referee #2, 22 Sep 2020
Ludwin Lopez-Lopez et al.
Ludwin Lopez-Lopez et al.
Viewed
HTML | XML | Total | BibTeX | EndNote | |
---|---|---|---|---|---|
492 | 319 | 37 | 848 | 31 | 33 |
- HTML: 492
- PDF: 319
- XML: 37
- Total: 848
- BibTeX: 31
- EndNote: 33
Viewed (geographical distribution)
Country | # | Views | % |
---|
Total: | 0 |
HTML: | 0 |
PDF: | 0 |
XML: | 0 |
- 1