Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at http://toms.gsfc.nasa.gov/index.html.
Originally viewing the smoke from a fire in eastern Alaska, we pull back to get a better view of the microscopic, airborne dust and smoke particles that drift away from the fire to other areas of Canada and the United States. The data shown was collected from June 29, 2004 through July
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 22.214.171.124.0