Based on the SST and wave data observed by vessels passing through the Nansha Islands waters, this paper analyses El Nino event’s effect on hydrological factors in the above waters. The paper concludes (1) SST in the...Based on the SST and wave data observed by vessels passing through the Nansha Islands waters, this paper analyses El Nino event’s effect on hydrological factors in the above waters. The paper concludes (1) SST in the Nansha Islands water varies with that of the Eastern Equatorial Pacific Ocean in synchronous phase, but varies with that of the Western Equatorial Pacific Ocean in opposite phase; (2) the sea state in Nansha Islands waters is rough, the frequency of great wave increases in the year of El Nino, especially in the next year of the year of El Nino. The paper discusses the reasons for the above phenomena.展开更多
In this paper, the characteristics of change in the Antarctic sea ice area are analysed by using the observed data from 1973 1986. The analysed results show that the monthly and annual change of the Antarctic sea i...In this paper, the characteristics of change in the Antarctic sea ice area are analysed by using the observed data from 1973 1986. The analysed results show that the monthly and annual change of the Antarctic sea ice area is obvious, the biggest change value is in 160°E 120°W and 60°W 100°E, the smallest value is in 110°E 160°E and 120°W 60°W. The relation between the Antarctic sea ice area and the Sea Surface Temperature(SST) in tropical Pacific is close, and the relation between the Antarctic sea ice area in each longitude belt and SST in tropical Pacific shows a clear difference. It is obvious that the Antarctic sea ice areas in 0° 90°E and 100°E 110°W have a different feedbacking relation with SST in the tropical Pacific. The notable relationship occurs in the 3 4 and 41 45 months, that quite tallies with the occurrence of El Nino.展开更多
文摘Based on the SST and wave data observed by vessels passing through the Nansha Islands waters, this paper analyses El Nino event’s effect on hydrological factors in the above waters. The paper concludes (1) SST in the Nansha Islands water varies with that of the Eastern Equatorial Pacific Ocean in synchronous phase, but varies with that of the Western Equatorial Pacific Ocean in opposite phase; (2) the sea state in Nansha Islands waters is rough, the frequency of great wave increases in the year of El Nino, especially in the next year of the year of El Nino. The paper discusses the reasons for the above phenomena.
文摘In this paper, the characteristics of change in the Antarctic sea ice area are analysed by using the observed data from 1973 1986. The analysed results show that the monthly and annual change of the Antarctic sea ice area is obvious, the biggest change value is in 160°E 120°W and 60°W 100°E, the smallest value is in 110°E 160°E and 120°W 60°W. The relation between the Antarctic sea ice area and the Sea Surface Temperature(SST) in tropical Pacific is close, and the relation between the Antarctic sea ice area in each longitude belt and SST in tropical Pacific shows a clear difference. It is obvious that the Antarctic sea ice areas in 0° 90°E and 100°E 110°W have a different feedbacking relation with SST in the tropical Pacific. The notable relationship occurs in the 3 4 and 41 45 months, that quite tallies with the occurrence of El Nino.
