Influence of Solar Radiation on Temperature Measurement before and after the Change of the Length of Suspension Used for the Japanese Radiosonde Observation

[摘要] The effect of the radiosonde suspension length on temperature measurement has been surveyed by comparing day-night temperature differences. The comparisons were made at 6 upper-air standard levels at 10 stations in Japan for two 4-year periods of 1964-67 and 1969-72 except 1968 when the suspension length for the Japanese routine radiosondes was changed from 7m to 15m.It is found that the day-night temperature differences in and after 1969 are considerably reduced in contrast to the differences in and before 1967.

[学科分类] 大气科学