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To evaluate the scalar ocean surface wind speeds obtained from the Special Sensor Microwave Imager (SSM/I) we compare them over the time period from July 1987 through December 1997 with those from two global analyses: the NCEP/NCAR Annual Reanalysis and the ECMWF TOGA Global Surface Analysis. We perform a statistical analysis for the whole globe and present… (More)
Isoprene is a precursor to tropospheric ozone, a key pollutant and greenhouse gas. Anthropogenic activity over the coming century is likely to cause large changes in atmospheric CO 2 levels, climate and land use, all of which will alter the global vegetation distribution leading to changes in isoprene emissions. Previous studies have used global… (More)
We summarize the benefits that negative index materials (NIMs), realizable in artificially constructed metamaterials, can have on both geometrical and wave optics. NIMs may lead to novel or improved future optical devices.
Preliminary results are reported for the optical constants at x-ray wavelengths of elements commonly used for x-ray mirrors and multilayer reflectors. The data were derived from measured absorption spectra using a dispersion theory-sum rule analysis.