Positioned field stations (or outposts) constitutean important part of the CAS research system. Basedsince its founding in 1949 on the requirements ofdisciplinary advances in the earth sciences, eco-environmental scie...Positioned field stations (or outposts) constitutean important part of the CAS research system. Basedsince its founding in 1949 on the requirements ofdisciplinary advances in the earth sciences, eco-environmental science, astronomy and space sci-ence, and in the context of socio-econmic andscientific progress, the academy has established agroup of field stations (outposts). Currently thereare 105 such stations. Twenty-two of them areengaged in agricultural ecology, 11 in forest ecolo-gy, four in grassland ecology, eight in marshland展开更多
The variations noticed in the atmospheric electric field recorded at Pune (18°32'N, 73°51'E, 559 m ASL), a tropical inland station located in Dcccan Plateau, India, during the period 1930-1987, have ...The variations noticed in the atmospheric electric field recorded at Pune (18°32'N, 73°51'E, 559 m ASL), a tropical inland station located in Dcccan Plateau, India, during the period 1930-1987, have been examined in relation to the variations observed in the Angstrom turbidity coefficient (β) and selected meteorological parameters. The monthly and annual mean values of the atmospheric electric field. Angstrom turbidity coefficient (β), rainfall, temperature and relative humidity for the years 1930-1938, 1957-1958, 1964-1965, 1973-1974 and 1987 were considered in the study.The results of the above study indicated gradual increases in the atmospheric electric field over the period of study (1930-1987) which is statistically significant at less than 5%level. The increases noticed during different periods varied from 30 to 109%. The increase noticed during the period (1930-1938) and (1973-1974) was maximum (109%). The Angstrom turbidity coefficient also showed systematic increases during the period of study, which is consistent. The diurnal curve of the atmospheric electric field at the station by and large, showed a double oscillation, which is generally observed in the conlinental environments.展开更多
文摘Positioned field stations (or outposts) constitutean important part of the CAS research system. Basedsince its founding in 1949 on the requirements ofdisciplinary advances in the earth sciences, eco-environmental science, astronomy and space sci-ence, and in the context of socio-econmic andscientific progress, the academy has established agroup of field stations (outposts). Currently thereare 105 such stations. Twenty-two of them areengaged in agricultural ecology, 11 in forest ecolo-gy, four in grassland ecology, eight in marshland
文摘The variations noticed in the atmospheric electric field recorded at Pune (18°32'N, 73°51'E, 559 m ASL), a tropical inland station located in Dcccan Plateau, India, during the period 1930-1987, have been examined in relation to the variations observed in the Angstrom turbidity coefficient (β) and selected meteorological parameters. The monthly and annual mean values of the atmospheric electric field. Angstrom turbidity coefficient (β), rainfall, temperature and relative humidity for the years 1930-1938, 1957-1958, 1964-1965, 1973-1974 and 1987 were considered in the study.The results of the above study indicated gradual increases in the atmospheric electric field over the period of study (1930-1987) which is statistically significant at less than 5%level. The increases noticed during different periods varied from 30 to 109%. The increase noticed during the period (1930-1938) and (1973-1974) was maximum (109%). The Angstrom turbidity coefficient also showed systematic increases during the period of study, which is consistent. The diurnal curve of the atmospheric electric field at the station by and large, showed a double oscillation, which is generally observed in the conlinental environments.
