AnSlope  Ross Sea ice/berg info  NBP03-02  

Feb 03: CW rotation continues with little net translaion

Jan 28: Good clear image from 27 Jan on the RPSC site shows continued rotation C19 oriented nearly N-S.

Jan 24: After nearly one week without imagery due to cloud cover, RPSC released an image with C-19 barely visible through light clouds. More rotation is evident. The SE corner of C-19 is not visible in the RPSC images, so it's position was estimated by extrapolation.

Jan 15-20 2003: C-19 showing significant motion, mostly rotation CW. This is most apparent in the images provided by RPSC [ orig figure with ellipses was archived in favor of newer outline rendering at right. ]

Jan 02: Some commentary by D. MacAyeal on C-19, plus some related publications

Dec 20: view expanded scale map with bathymetry from Antarctic Research Series American Geophysical Union - Antarctic Research Series
Volume 68 - 1995 DIGITAL DATA FOR SEISMIC STRATIGRAPHIC ATLAS OF THE ROSS SEA, ANTARCTICA by ANTOSTRAT Project

Dec 17: no significant motion over the last 2 weeks, so map has not been updated

Dec 06: updated to reflect correction to day 329 position . Examination of the images from RPSC confirm that the NIC position of -73.4 174 for day 329 is in error. I have set it to -73.8 174 in our files. The berg has not moved much since day 323.

Dec 04 2002: Iceberg C-19 is approaching the Anslope work area. Approximately weekly positions of C-19 posted by the National Ice Center (NIC) are used in this schematic figure to track the berg's progress. The ellipses are 109 x 17 nmile, and are labeled with the year-day of the NIC position. Orientation is approximately that of C-19 based on images provided by RPSC. Box "B" (in green ) from the Anslope proposal encloses the proposed mooring sites. This figure will be updated as new positions become available.

 

 

 

Figure at right displays C-19 outlines hand-digitized from the RPSC OLS images from days indicated. Bathymetry from ARS 68 (see above for complete ref)

 [ pdf version -best quality with Acrobat Reader 5]