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On 11th January 2012 Google replaced their global bathymetry SRTM30_PLUS V4.0 with the newer version V7.0.
This increase the area of seafloor covered at 1km resolution from 10% to 15%.
The new version also corrected thousands of errors in the old data.
By visiting Google Earth, you can use the "historical imagery" flag to see old versus new.
The SRTM30_PLUS V7.0 overlay can be downloaded from the site of Scripps Institute of Oceanology to see the trackline coverage and confirm that there is a perfect match.
Posted via http://maritime-news.posterous.com Maritime-News posterous
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