. Compendium of meteorology. Meteorology. Fig. 4.âPart of a record made at the Miami, Florida, tripartite station of the U. S. Navy, August 23, 1949, showing large microseisms recorded at the stand-by rate (top) and at the hurricane rate (bottom). Time interval between interrup- tions in both cases, 15 sec. However, the problem still remains as to the mecha- nism by which a storm center produces the elastic waves on the ocean bottom and why they are so conspicuously characterized by groups resembling inter- "^m^if^ii-^jhlli-^^fi^ w W H'^m^lMhh ^m^^'lVl^wyl^f^vw^KJ^f, rt ^'*''^'^^^^^^ â ^'
. Compendium of meteorology. Meteorology. Fig. 4.âPart of a record made at the Miami, Florida, tripartite station of the U. S. Navy, August 23, 1949, showing large microseisms recorded at the stand-by rate (top) and at the hurricane rate (bottom). Time interval between interrup- tions in both cases, 15 sec. However, the problem still remains as to the mecha- nism by which a storm center produces the elastic waves on the ocean bottom and why they are so conspicuously characterized by groups resembling inter- "^m^if^ii-^jhlli-^^fi^ w W H'^m^lMhh ^m^^'lVl^wyl^f^vw^KJ^f, rt ^'*''^'^^^^^^ â ^'/>\1'^%^>,^^^^^^ ference patterns (Fig. 5). An argument in favor of swell and decay of activity at the source rather than interference from independent sources within the storm area is the similar appearance of the records in many different directions. A thorough study of the "groups" from this point of view remains to be Fig. 6.âRecord at Corpus Christi for July 9, 1947, showing increase in amplitude of microseisms on lower portion of record at the time of a local thunderstorm. Time breaks are at 15-sec intervals. Suggestions as to the mechanism by which these microseisms are produced have been offered by Banerji, Gherzi, Macelwane, Longuet-Higgins, and others. But the observations necessary to test the validity of any one of them are lackiag. In most cases the accumulation of the necessary critical data would be both difficult and costly. For example, observations would be re- quired of the existence or nonexistence of standing ocean waves in a disturbed area of a hurricane or typhoon. The observation of regular "pumping" in the air vortex or of vertical oscillation in a water vortex CORPUS CHRISTI BAY 27°43'n. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original A
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectmeteorology
