Drought Monitoring and Assessment: Status and Trends in the United States
نویسندگان
چکیده
Drought is a normal, recurring feature of climate. The characteristics of this hazard, along with its far-reaching impacts, make its effects on society, economy, and environment difficult to identify and quantify. A national drought watch system has been recommended as a necessary component of drought assessment and management. The National Drought Mitigation Center, in collaboration with others, has undertaken a number of drought watch activities for the past few years, using a variety of resources available over the Internet. These resources include tools such as the Standardized Precipitation Index, a new drought index that is more reliable for detecting emerging drought conditions.
منابع مشابه
Assessing the Trend of Spatio-temporal Drought Changes Using Remote Sensing Time Series Data in Central Khuzestan Province
Introduction: As a dreadful natural disaster caused by a severe reduction in precipitation rate, drought brings about, compared with other natural disasters, far-reaching spatial and temporal consequences, incurring severe damages. On the other hand, in late the 20th century, drought monitoring approaches underwent a paradigm shift, and advances in remote sensing and earth observation technolog...
متن کاملAssessment of Vegetation Temperature Status (VTCI) for monitoring drought in the watershed of Lake Urmia by using MODIS satellite imagery
Continuous decline in Lake Urmia water levels In recent years, the decline of rainfall and river flows and constant droughts has become the main concern of the people and the people. To study climate change and increase of temperature in the catchment area of Lake Urmia, two factors for measuring the temperature and properties of satellite images were used which indicate the importance of lan...
متن کاملThe Impact of Islamic Awakening on United States' Status in the Middle East Region
In addition to its geographic prominence, the Middle East region possesses an important position in foreign policy of great powers especially the United States. Through the implementation of different policies, these powers seek to secure their interests and interpret historical events into their own interests. Muslim nations' uprising is one of the most important developments in the Middle Eas...
متن کاملDrought Planning and Risk Assessment: Status and Future Directions
Although drought is a normal, recurring feature of climate, little progress has been made in drought management in most parts of the world. The progress in drought planning that has been achieved in some countries and regions can be useful for other drought-prone regions. In this paper, a drought planning process, originally developed in 1991 for state-level government in the United States, is ...
متن کاملاحیای هویت اسلامی و ایدئولوژی تمامیتطلب آمریکایی
This Article addressed and criticized the United States domestic and foreign policy approach toward the revival of the Islamic identity and the growing of self-awareness and activism in Muslim societies as the most important possible alternative to the current world order. So, the authors, at first, provide an appropriate theoretical framework using the principles of social constructivism schoo...
متن کامل