July 2015


NOAA Ship Fairweather
Jul 23, 2015Avoiding Rock Bottom: How Landsat Aids Nautical Charting

On the most recent nautical chart of the Beaufort Sea where the long narrow Tapkaluk Islands of Alaska’s North Slope separate the sea from the shallow Elson Lagoon (Nautical Chart 16081) a massive shoal is immediately noticeable just west of the [...]

North American river widths derived from Landsat
Jul 9, 2015A Satellite View of River Width

Hydrologists from the University of North Carolina have come up with an innovative way to estimate the size of rivers via satellite images. Combing through data acquired by Landsat satellites, George Allen and Tamlin Pavelsky have compiled a new [...]