Computer Science – Sound
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agusmgc44a..04s&link_type=abstract
American Geophysical Union, Spring Meeting 2004, abstract #GC44A-04
Computer Science
Sound
1600 Global Change, 1645 Solid Earth, 3309 Climatology (1620), 3359 Radiative Processes
Scientific paper
GCM modeling studies which examine the interaction between the land surface and the atmosphere above heterogeneous terrain, have shown that the air characteristics above different surface patches become horizontally homogeneous at approximately one third of the height of the planetary boundary layer (PBL). In order to determine the consistency between this model behavior and observations, radiosonde data from the BOREAS experiment were analyzed. The data used in this analysis were from temporally concurrent measurements (daytime or afternoon), taken over a wide enough range of surface types and on scales comparable to a GCM grid size. An algorithm similar in nature to that used in the GCM studies and other observational studies was used to compute blending heights. Blending heights were observed over more than 50% of the vertical soundings from seven locations that were analyzed. The ratio between PBL height and blending heights varied between spring and summer seasons, as expected. Seasonal averages of the daily maximum height of the blending height from spring and summer seasons will be presented. The relation between blending height and surface ground temperature as well as air temperature will also be discussed.
Huang Ling
Molod A.
Salmun H.
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