Sathian et al. (2025) Assessment of Impact of Climate Change Towards Agricultural Drought Using Remote Sensing Indices in Semi-Arid and Humid Regions of South India

Identification

• Journal: Lecture notes in civil engineering
• Year: 2025
• Date: 2025-11-19
• Authors: Srinithisathian Sathian, Harani Periyannan, Milan K Biju, Brema Jayanarayanan
• DOI: 10.1007/978-981-95-0241-7_8

Research Groups

Karunya Institute of Technology and Sciences, Coimbatore, India

Short Summary

This study assessed agricultural drought dynamics and its impact in the semi-arid Thamirabarani and humid Keecheri river basins of South India from 2014 to 2023 using remote sensing indices, finding that over 60% of both areas experienced mild drought, exacerbated by deficit rainfall in 2016 and 2019.

Objective

• To observe the agricultural drought dynamics and analyze the impact of agricultural drought in the Thamirabarani (semi-arid) and Keecheri (humid) river basins of South India.

Study Configuration

• Spatial Scale: Thamirabarani river basin (Tamil Nadu, semi-arid region) and Keecheri river basin (Kerala, humid region) in South India.
• Temporal Scale: 2014 to 2023.

Methodology and Data

• Models used: Vegetation Condition Index (VCI), Normalised Difference Vegetation Index (NDVI), Normalised Difference Water Index (NDWI), Normalised Difference Moisture Index (NDMI). A multi-criterion weighted overlay approach was applied.
• Data sources: Landsat and Sentinel satellite data.

Main Results

• More than 60% of the area in both the Thamirabarani and Keecheri river basins experienced mild drought during the 2014-2023 study period.
• Deficit rainfall during the years 2016 and 2019 led to an increased area falling under mild drought in both Thamirabarani and Keecheri river basins.

Contributions

• Provides a comparative assessment of agricultural drought dynamics in two climatically distinct river basins (semi-arid and humid) within South India.
• Utilizes multiple remote sensing indices (VCI, NDVI, NDWI, NDMI) and a multi-criterion weighted overlay approach for comprehensive drought monitoring.
• Highlights the vulnerability of rainfall-dependent agricultural regions in South India to climate change impacts, specifically monsoon pattern fluctuations.

Funding

Not explicitly mentioned in the provided text.

Citation

@article{Sathian2025Assessment,
  author = {Sathian, Srinithisathian and Periyannan, Harani and Biju, Milan K and Jayanarayanan, Brema},
  title = {Assessment of Impact of Climate Change Towards Agricultural Drought Using Remote Sensing Indices in Semi-Arid and Humid Regions of South India},
  journal = {Lecture notes in civil engineering},
  year = {2025},
  doi = {10.1007/978-981-95-0241-7_8},
  url = {https://doi.org/10.1007/978-981-95-0241-7_8}
}