These days, damage by rain is getting bigger. Also degree of damage and time of occurance are unpredictable because of climate chage by global warming and industrialization. So, in this situation, we need to know exactly characteristic of rain period and rainfall to prevent the more damages.
we have to be relized the seriousness of change of rain pettern and make a coping method. Since climate change is radically changed, we have to look at this chages with attention. Furthermore, we have to develop a global mind-set not limaited to our country.