tailieunhanh - Global Warming Part 2

Tham khảo tài liệu 'global warming part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Impact of Global Warming on Tropical Cyclones and Monsoons 7 MTH is also give an indication of increase intense tropical cyclone over the North Indian Ocean. The correlation between severe cyclones and MTH is . A strong relation is observed with vertical wind shear and with the layers 200-925 200-850 and 150-850 respectively . The relation is strong with the upper layers 150-850 hPa of the atmosphere which is the most important wind shear for the formation of intense cyclones . SST anomaly is also shows good correlation with MTH significant at level . Fig. 3. Air temperature difference between lower 500 hPa and upper 100 hPa atmosphere during southwest monsoon over the North Indian Ocean. Fig. 4. Mid tropospheric humidity 700-500 hPa during southwest monsoon over the North Indian Ocean 8 Global Warming Trends of surface-air-temperatures and rainfall over India The earth s climate is dynamical and always changing. The climate of a place is the average weather that it experiences over a period of time. The factors generally determining the climate of a region are temperature and rain in this study. For temperature and rainfall series values of statistics for Mann-Kendall rank statistic test have been calculated and the results are given in table 2. The test statistic for N 127 significant at 5 is and significant at 1 level is . On examination of the table there is no suggestion of non randomness in the series and that for the purpose of our statistical analysis these series could be taken as random. Analysis of mean monthly surface-air-temperature for 280 grids over India is averaged from January through December for annual SW monsoon June July August and September JJAS and NE monsoon October November and December OND seasons. Fig. 2a indicates year-to-year variations of annual surface-air-temperatures over India for the study period and it clearly indicates that there are 10 hot episodes based on anomaly 1910 1938 .

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