Near-coastal circum-Antarctic iceberg size distributions determined from Synthetic Aperture Radar images ...

The Radarsat-1 Antarctic Mapping Project (RAMP) compiled a mosaic of Antarctica and the adjacent ocean zone from more than 3000 high-resolution Synthetic Aperture Radar (SAR) images acquired in September and October 1997. The mosaic with a pixel size of 100 m was used to determine iceberg size distr...

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Bibliographic Details
Main Authors: Wesche, Christine, Dierking, Wolfgang
Format: Dataset
Language:English
Published: PANGAEA 2015
Subjects:
LATITUDE
LONGITUDE
Area
Perimeter
Width
Length
Orientation
Antarc*
Antarctic
Antarctica
Iceberg*
Online Access:https://dx.doi.org/10.1594/pangaea.843280
https://doi.pangaea.de/10.1594/PANGAEA.843280
Description
Summary:The Radarsat-1 Antarctic Mapping Project (RAMP) compiled a mosaic of Antarctica and the adjacent ocean zone from more than 3000 high-resolution Synthetic Aperture Radar (SAR) images acquired in September and October 1997. The mosaic with a pixel size of 100 m was used to determine iceberg size distributions around Antarctica, combining an automated detection with a visual control of all icebergs larger than 5 km**2 and correction of recognized false detections. For icebergs below 5 km**2 in size, the numbers of false detections and accuracies of size retrievals were analyzed for three test sites. Nearly 7000 icebergs with horizontal areas between 0.3 and 4717.7 km**2 were identified in a near-coastal zone of varying width between 20 and 300 km. The spatial distributions of icebergs around Antarctica were calculated for zonal segments of 20° angular width and related to the types of the calving fronts in the respective section. Results reveal that regional variations of the size distributions cannot be ... : Supplement to: Wesche, Christine; Dierking, Wolfgang (2015): Near-coastal circum-Antarctic iceberg size distributions determined from Synthetic Aperture Radar images. Remote Sensing of Environment, 156, 561-569 ...

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