On Monday, 11 July from 3:00 p.m. through Wednesday, 13 July until 5:00 p.m. (USA Mountain Time), NSIDC data distribution, services, and Web site will be unavailable to accommodate a major upgrade to our data center. We apologize for any inconvenience this may cause you. Need to talk to us? You can always contact our friendly User Services Office at firstname.lastname@example.org or + 1 303.492.6199.
The Barrow B4 Quadrangle (BQ) data set was created for use as a geocorrection layer. The most accurate areas of image P001 and image P002 were preserved using a cutline (shown in red). Note that most of image P002 was used in the overlap area. The image was clipped to the boundaries of the USGS Barrow B4 Quadrangle because the image file size would be too large if the entire QuickBird images were mosaicked.