Accession Number : AD0686321

Title :   WEATHER DISTURBANCES OVER TROPICAL CONTINENTS AND THEIR EFFECT ON GROUND CONDITIONS,

Corporate Author : COLORADO STATE UNIV FORT COLLINS DEPT OF ATMOSPHERIC SCIENCE

Personal Author(s) : Rainbird,Allan F.

Report Date : SEP 1968

Pagination or Media Count : 60

Abstract : The relative contributions to tributary and main stream flood flows of the three types of synoptic disturbance associated with heavy summer monsoon rainfalls over the lower Mekong River basin were examined for the 1961-63 period. Lower tropospheric cyclones were found to be more productive for flood runoff than mid-tropospheric disturbances (cyclones and equatorial trough shearlines). Antecedent conditions exercised a major influence on the magnitudes of peak flood discharges resulting from individual periods of enhanced broad-scale rainfall. The higher flood flows resulted most frequently from a lower tropospheric cyclone following closely upon stream rises due to mid-tropospheric disturbances. Heavy concurrent runoff to adjoining reaches of the Mekong River was found more likely to result from lower than mid-tropospheric systems. (Author)

Descriptors :   (*METEOROLOGY, SOUTHEAST ASIA), (*FLOODS, TROPICAL REGIONS), RAINFALL, PERIODIC VARIATIONS, RIVERS, TROPICAL CYCLONES, INTENSITY, TROPOSPHERE, HYGROMETERS, DISTRIBUTION, TERRAIN, METEOROLOGICAL PHENOMENA, THESES, METEOROLOGICAL SATELLITES, INFRARED RADIATION

Subject Categories : Meteorology
      Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE