Norbert Ott

Antarctic Coastline Detection using Snakes

1 Extended version of a paper published in The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXVIII, Part 4, 2010, 7 p. (on CD-ROM). the update cycle of the coastline data is limited by the revisit time of the imaging sensor, and the accuracy of the coastline is influenced by the ground sample distance of the images. The availability of space borne imagery has increased in recent decades due to a larger number of related satellites, including Radarsat-1, Landsat ETM+ or MODIS on board Aqua/Terra.

Southern Ocean mapping program restarts

The International Bathymetric Chart of the Southern Ocean (IBCSO) mapping program restarted at the end of 2006 after a 2-year break. The program is based at the Alfred Wegener Institute for Polar and Marine Research, in Bremerhaven, Germany. Since the program restarted, some important topics have been revised and updated: New bathymetric data are being collected by various cruises with R/V Polarstern; new expeditions are being planned and have been carried out to Antarctic waters; a mailing list for improved communication is being established at the National Geophysical Data Center; the IBCSO expert group is being revitalized; and the conceptual design and implementation of the programs geo-database and metadata structure conceptual design and implementation are under way.