Agricultural Drought Assessment: Operational Approaches in India with Special Emphasis on 2012

2014 ◽  
pp. 349-364
Author(s):  
S. S. Ray ◽  
M. V. R. Sesha Sai ◽  
N. Chattopadhyay
Keyword(s):  
Agricultural Drought ◽  
Drought Assessment

scholarly journals Agricultural drought : Assessment & monitoring

MAUSAM ◽  
2021 ◽  
Vol 67 (1) ◽  
pp. 131-142
Author(s):  
M. V. R. SESHA SAI ◽  
C. S. MURTHY ◽  
K. CHANDRASEKAR ◽  
A. T. JEYASEELAN ◽  
P. G. DIWAKAR ◽  
...  
Keyword(s):  
Satellite Remote Sensing ◽  
Management Strategy ◽  
Agricultural Drought ◽  
Spatial Extent ◽  
Drought Management ◽  
Extraction Techniques ◽  
Drought Assessment ◽  
Rational Decision Making ◽  
Related Information ◽  
Adverse Impacts

Drought is a creeping natural disaster with long lasting effects on ecology as well as economy. Monitoring and assessment of drought is a very critical component of the drought management strategy aimed at mitigation of its adverse impacts. Spatial extent, intensity and duration of drought related information is essentially needed for taking the choicest rational decision making in the field of agriculture. Satellite remote sensing enables deriving indicators that explain the prevalence, severity, persistence and spatial extent of the area affected by drought. New satellite missions coupled with novel information extraction techniques are opening new vistas towards monitoring and assessment of drought. Aspects related to agricultural drought are discussed in this paper.

scholarly journals Agricultural Drought Assessment in East Asia Using Satellite-Based Indices

2020 ◽  
Vol 12 (3) ◽  
pp. 444 ◽  
Author(s):  
Dong-Hyun Yoon ◽  
Won-Ho Nam ◽  
Hee-Jin Lee ◽  
Eun-Mi Hong ◽  
Song Feng ◽  
...  
Keyword(s):  
International Development ◽  
Land Surface ◽  
Joint Venture ◽  
The United States ◽  
Agricultural Drought ◽  
Stress Index ◽  
Drought Indices ◽  
Area Index ◽  
Drought Assessment ◽  
Wide Range

Drought is the meteorological phenomenon with the greatest impact on agriculture. Accordingly, drought forecasting is vital in lessening its associated negative impacts. Utilizing remote exploration in the agricultural sector allows for the collection of large amounts of quantitative data across a wide range of areas. In this study, we confirmed the applicability of drought assessment using the evaporative stress index (ESI) in major East Asian countries. The ESI is an indicator of agricultural drought that describes anomalies in actual/reference evapotranspiration (ET) ratios that are retrieved using remotely sensed inputs of land surface temperature (LST) and leaf area index (LAI). The ESI is available through SERVIR Global, a joint venture between the National Aeronautics and Space Administration (NASA) and the United States Agency for International Development (USAID). This study evaluated the performance of ESI in assessing drought events in South Korea. The evaluation of ESI is possible because of the availability of good statistical data. Comparing drought trends identified by ESI data from this study to actual drought conditions showed similar trends. Additionally, ESI reacted to the drought more quickly and with greater sensitivity than other drought indices. Our results confirmed that the ESI is advantageous for short and medium-term drought assessment compared to vegetation indices alone.

scholarly journals Agricultural drought assessment based on multiple soil moisture products

2019 ◽  
Vol 167 ◽  
pp. 43-55 ◽  
Author(s):  
Jongjin Baik ◽  
Muhammad Zohaib ◽  
Ungtae Kim ◽  
Muhammad Aadil ◽  
Minha Choi
Keyword(s):  
Soil Moisture ◽  
Agricultural Drought ◽  
Drought Assessment

scholarly journals Daily standardized precipitation index with multiple time scale for monitoring water deficit across the mainland China from 1961 to 2018

2021 ◽  
Author(s):  
Qianfeng Wang ◽  
Rongrong Zhang ◽  
Yanping Qu ◽  
Jingyu Zeng ◽  
Xiaoping Wu ◽  
...  
Keyword(s):  
Standardized Precipitation Index ◽  
Social Economy ◽  
Mainland China ◽  
Precipitation Index ◽  
Agricultural Drought ◽  
Multiple Time ◽  
Data Set ◽  
Drought Assessment ◽  
Multi Scale ◽  
The Standardized Precipitation Index

Abstract. With the increasing shortage of water resources, drought has become one of the hot issues in the world. The standardized precipitation index (SPI) is one of the widely used drought assessment indicators because of its simple and effective calculation method, but it can only assess drought events more than one month. We developed a new multi-scale daily SPI dataset to make up for the shortcomings of the commonly used SPI and meet the needs of drought types at different time scales. Taking three typical stations in Henan, Yunnan and Fujian Province as examples, the drought events identified by SPI with different scales were consistent with the historical drought events recorded. Meanwhile, we took the 3-month scale SPI of soil and agricultural drought as an example, and analyzed the characteristics of drought events in 484 stations in Chinese mainland. The results showed that most of the drought events the mainland China did not increase significantly, and some parts of the northwestern Xinjiang and Northeast China showed signs of gradual relief. In short, our daily SPI data set is freely available to the public on the website https://doi.org/10.6084/m9.figshare.14135144, and can effectively capture drought events of different scales. It can also meet the needs of drought research in different fields such as meteorology, hydrology, agriculture, social economy, etc.

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