Accession Number : ADA258317


Title :   SAR-Related Stress Variability in the Marine Atmospheric Boundary Layer (MABL) (High Resolution ARI)


Descriptive Note : Research rept.


Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF METEOROLOGY


Personal Author(s) : Shirer, Hampton N ; Young, George S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258317.pdf


Report Date : Jan 1992


Pagination or Media Count : 55


Abstract : By stressing the sea surface, the marine atmospheric boundary layer (MABL) can alter the sea surface wave field and so can produce discernible signatures on SAR images of the ocean (e.g. Visecky and Stewart 1982). Among the resulting signatures, the quasi-linear and cellular microscale patterns still require adequate explanation. The ubiquitous MABL two- and three-dimensional convective circulations provide promising candidates for the forcing phenomena producing these signatures. These microscale circulations have horizontal wavelengths on the order of 1 to 10 times the boundary layer depth, or approximately 1 to 10 km, and temporal scales on the order of 1 to 10 hours. Thus, they produce stress variations on the spatial and temporal scales of the quasi-linear and cellular SAR signatures.


Descriptors :   *SURFACE WAVES , *OCEAN SURFACE , *BOUNDARY LAYER , *RADAR SIGNATURES , *SYNTHETIC APERTURE RADAR , *WIND STRESS , *CONVECTION(ATMOSPHERIC) , ALGORITHMS , RADAR IMAGES , THREE DIMENSIONAL , WIND DIRECTION , PERTURBATIONS , SATELLITE IMAGERY , GULF STREAM , MIXED LAYER(MARINE) , PATTERNS , MARINE ATMOSPHERES , VARIATIONS , TWO DIMENSIONAL , OBSERVATION , OCEAN CURRENTS , OCEAN WAVES


Subject Categories : Meteorology
      Physical and Dynamic Oceanography
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE