6th Conference on Polar Meteorology and Oceanography

P1.11

Airborne spectral reflectance observations at SHEBA from NCAR's Multichannel Cloud Radiometer (MCR)

Mark A. Tschudi, NCAR, Boulder, CO; and K. K. Laursen

Observations during the SHEBA / FIRE-ACE campaign from NCAR's Multichannel Cloud Radiometer (MCR) depict the variability of surface spectral reflectance over a 50 x 50 km box centered about the Des Groseilliers. The MCR is a 7-channel (visible, near infrared and thermal infrared) scanning radiometer that was flown aboard the NCAR/NSF C-130 during FIRE-ACE. The MCR's high-resolution view of the arctic surface allows for evaluation of open water fraction, and thus ice concentration. Furthermore, there is a potential to determine areas of ridged ice and, in summer, to delineate ponded ice from unponded ice. The large swath of this instrument permits complete coverage of the box; thus, the data can be applied to determine the subpixel inhomogeneity of satellite (AVHRR) and high-altitude (MODIS from NASA's ER-2) reflectance measurements in the SHEBA area. The National Center for Atmospheric Research (NCAR) is sponsored by the National Science Foundation.

Poster Session 1, Formal Viewing with Reception (Cash Bar)
Tuesday, 15 May 2001, 4:00 PM-6:00 PM

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