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Drought Atlas of India, 1901-2020
Dipesh Singh Chuphal1, Anuj Prakash Kushwaha2, Saran Aadhar3
1Civil Engineering, Indian Institute of Technology (IIT) Gandhinagar, Gandhinagar, India.
Scientific Data
|January 3, 2024
Summary
India
Area of Science:
- Climatology and Environmental Science
- Agricultural Meteorology
- Hydrology
Background:
- India faces significant drought impacts on agriculture and water resources.
- Existing drought datasets lack appropriate spatial and temporal scales for effective analysis.
- Limited historical drought data hinders understanding of past events and decision-making.
Purpose of the Study:
- To develop high-resolution, long-term precipitation and temperature datasets for India.
- To estimate drought conditions using the Standardized Precipitation and Evapotranspiration Index (SPEI).
- To create a comprehensive drought atlas for India to inform risk assessment and management.
Main Methods:
- Development of high-resolution (0.05°) monthly precipitation and temperature datasets (1901-2021).
- Estimation of drought using the Standardized Precipitation and Evapotranspiration Index (SPEI), incorporating temperature.
- Creation of a drought atlas for India (1901-2020) based on high-resolution SPEI data.
Main Results:
- Successful development of long-term, high-resolution climate datasets for India.
- Application of SPEI to effectively identify meteorological, agricultural, and hydrological droughts.
- Generation of a detailed drought atlas providing insights into drought patterns and risks.
Conclusions:
- The developed datasets and drought atlas fill a critical gap in India's drought monitoring capabilities.
- High-resolution SPEI analysis provides a robust method for assessing diverse drought types.
- The drought atlas serves as a valuable tool for understanding drought occurrence, impacts, and risks across India.
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