Archive for September, 2011

Mapping Land Ice

Wednesday, September 28th, 2011

A recent hot topic has been circulating cyberspace re: a Greenland ice mapping fiasco that I happily was not involved with. Yet, by coincidence of a grant application submitted in 2009 and funded this year, I am able to assist in my role as a geographer to help complete the global land ice inventory and help resolve the issue so such fiascos don’t happen.

Image:2000.233 0250m refa 143 06600 11000-1.jpg

0.25 km satellite image of the east Greenland glacierized complex going by the names: Geicke Plateau and Blosseville Coast. The satellite image comes from the NASA MODIS sensor. The image was produced by J. Box, C. Chen, and D. Decker at Byrd Polar Research Center.

NY Times reporter, Felicity Barringer writes a second NY Times article illuminating the challenges of mapping land ice, that links to a page I constructed to provide background on a this new project.

Image:Map 1250m mask count.png

1.25 km satellite image -based classification of the East Greenland glacierized complex. The image is roughly co-registered with above image. The classification is according to a preliminary land surface classification on a coarser 1.25 km grid than the ultimate 0.25 km grid. We are in the process of producing the 0.25 km classifications and to compare these with GLIMS outlines.

A new Byrd Polar Research Center staff person Christine Chen was hired this September to begin her PhD work by advancing ice inventory work beyond the land ice classifications I made beginning in 2007. Christine is now simultaneously improving Greenland and Antarctic Peninsula land ice classifications. We will be sharing these data with the global scientific community in a fully transparent project with an independent validation effort involving colleagues in Switzerland and Boulder, CO.