Based on the meteorological monthly mean temperature data and ISCCP D2 data, using the SVD, statistical analysis and synthetic analysis methods, the relationship and influence of cloud amount and temperature were analyzed over east side of Qinghai-Tibetan Plateau. The research results show that the 1980s were the coldest decade in the Sichuan and Chongqing basin in the last half century, and the mid-90s were an important turning point in the change of the Sichuan and Chongqing basin from cold to warm. The lag of warming is mainly caused by the abnormal temperature of spring and autumn, and the west of the basin is a notable anomaly. The nimbostratus、cirrus and deep convective cloud are positively correlated with temperature, and the degree of influence and relationship are different. Nimbostratus and deep convective cloud has positive correlation with the temperature of "greenhouse effect", the cirrus that reflected solar short wave radiation is negatively related to the temperature. Because nimbostratus、deep convective cloud produce precipitation and weaken the warming effect, so the relationship between cirrus and temperature is better. There is a significant correlation between the nimbostratus, cirrus and deep convective cloud. The correlation coefficient between cirrus and nimbostratus, deep convective cloud is negative, but the nimbostratus is positively correlated with cirrus. The correlation coefficient between cirrus and nimbostratus is the bigger among those correlation coefficients. In view of the fact that the three clouds affect the temperature together and have significantly correlation with it, we built a cloudy regression model that has passed the significance test.
ZHANG Qi
,
LI Yueqing
,
REN Jingxuan
. Preliminary Analysis on the Influence of Cloud Amount and Temperature over East Side of Qinghai-Tibetan Plateau[J]. Plateau Meteorology, 2018
, 37(3)
: 734
-746
.
DOI: 10.7522/j.issn.1000-0534.2017.00085
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