Abstract: Composite patterns of eddy sensible heat transport at 700 mb on the Northern Hemisphere are derived for winters [December, January, February (DJF)] marked by extremes of the North Atlantic Oscillation (NAO) occurring in ...

Abstract: A five-winter satellite study of the ?instant occlusion" mode of extratropical cyclogenesis has been undertaken for the Southern Hemisphere oceans. The phenomenon shows a maximum frequency of occurrence over latitudes ...

Abstract: Composite analysis of weekly ship and shore observations of the Weddell Sea pack ice for extreme events of the Southern Oscillation (SO) occurring in the 1929?62 period reveals strong variations in ice-water concentrations ...

Abstract: The results of a pilot study to assess the feasibility of documenting the occurrence of jet contrails over the United States from high-resolution Defense Meteorological Satellite Program (DMSP) imagery are presented. They ...

Abstract: Satellite-derived vegetation indices extracted over locations representative of midwestern U.S. cropland and forest for the period 1990?94 are analyzed to determine the sensitivity of the indices to neutron probe soil ...

Abstract: The mid-summer rainfall singularity of the Southwest United States (principally Arizona) exhibits marked variations on interannual and decadal time scales. Examination of the synoptic mechanisms involved in these variations ...

Abstract: The cirrus-level ?condensation trails? (contrails) produced by jet aircraft are considered to influence surface climate and its recent changes. To reveal the synoptic atmospheric environments typically associated with ...

Abstract: The grounding of all commercial aircraft within U.S. airspace for the 3-day period following the 11 September 2001 terrorist attacks provides a unique opportunity to study the potential role of jet aircraft contrails in ...

Abstract: The increases in total cloud amount documented for large regions during the latter half of the twentieth century have focused attention on the potential contribution from jet condensation trails (contrails). The environmental ...