Drought as a Natural Disaster

These indices were calculated using MODIS products during the 9 years (2003-2009) of Qom Watershed. Rainfall is also used to evaluate droughts. Therefore, the temperature condition index (TCI) is closely related to the rainfall distribution, but the vegetation condition index (VCI) has several abnormalities. As the result shows VCI logarithmic time, vegetation conditions in spring and growing season will improve despite reduced rainfall. Vegetation in the survey area is scarce, so the annual variation of VCI is small.

As a natural disaster, drought had a serious impact on land resources and human society. In addition, the need for land and water resources by human or poor management increases their risk. Spatial distribution is necessary to evaluate and identify trends in drought events. In this case, remote sensing data is important especially in dry or semi-arid areas where there are few weather stations. There are no stations in remote areas such as the desert. There are two in this research

Most of what we call natural disasters (tornadoes, droughts, hurricanes) is actually natural, but human contribution may increase its potential and strength. But they are not disasters - it is dangerous. Even if a hurricane hits a land where no one lives, it is not a disaster but the weather. A disaster is a natural disaster that matches the population. Usually this intersection is far from natural. If Houston's community is found to be most vulnerable to hurricane Harvey, most damage is not only predictable but also predicted. In 2016, ProPublica announced a detailed article explaining that lack of plans could make urban residents very vulnerable to hurricanes. The city permitted the entire block to emerge in areas where the Army Corps of Engineers knew that it would flood during the heavy rain. The 1996 report urged Harris County with Houston to take measures to mitigate the risk. It will be ignored. Harvey is a strong weather phenomenon.

Certainly, some natural disasters are inevitable. There are no places on earth that can withstand any natural disasters such as earthquakes, floods, hurricanes, tornadoes, snowstorms, droughts, etc. But when we say disaster is a natural disaster, it minimizes the impact of removing any obstacles to us. It allows us to avoid planning the danger and to pretend to be inevitable a bad clash between man and the power of nature. Houston has a long flood legacy, but there is no flood evacuation place. Even though it is impossible to evacuate big cities, dividing cities into regions based on historical flood patterns solves a few problems. People in low-risk areas can stay and people in high-risk areas can evacuate themselves. Even during Harvey, Houston did not unify the flood