Sarvari et al. (2026) Quantifying Drought Impacts on Wetlands in Arid Regions Using a Change-Based Drought Severity Index (WCDI) and Sentinel-1/2 Data Fusion within Google Earth Engine: Evidence from Two Wetlands in Central Iran

Identification

• Journal: Advances in Space Research
• Year: 2026
• Date: 2026-05-01
• Authors: Ziba Sarvari, Iman Khosravi, Hossein Bagheri
• DOI: 10.1016/j.asr.2026.04.096

Research Groups

• Ziba Sarvari, Iman Khosravi, and Hossein Bagheri (Affiliations not specified in the provided text)

Short Summary

The study develops and applies a Change-Based Drought Severity Index (WCDI) using fused Sentinel-1 and Sentinel-2 satellite data within Google Earth Engine to quantify drought impacts on two wetlands in Central Iran.

Objective

• To quantify the impacts of drought on wetlands in arid regions using a novel index (WCDI) and multi-sensor data fusion.

Study Configuration

• Spatial Scale: Two wetlands located in Central Iran.
• Temporal Scale: Not specified in the provided text.

Methodology and Data

• Models used: Change-Based Drought Severity Index (WCDI).
• Data sources: Sentinel-1 (SAR) and Sentinel-2 (Optical) data fusion via the Google Earth Engine (GEE) platform.

Main Results

• Not specified in the provided text.

Contributions

• Introduction of the Change-Based Drought Severity Index (WCDI) for arid region wetlands.
• Implementation of a Sentinel-1/2 data fusion approach within Google Earth Engine to improve the monitoring of drought impacts in wetland ecosystems.

Funding

• Not specified in the provided text.

Citation

@article{Sarvari2026Quantifying,
  author = {Sarvari, Ziba and Khosravi, Iman and Bagheri, Hossein},
  title = {Quantifying Drought Impacts on Wetlands in Arid Regions Using a Change-Based Drought Severity Index (WCDI) and Sentinel-1/2 Data Fusion within Google Earth Engine: Evidence from Two Wetlands in Central Iran},
  journal = {Advances in Space Research},
  year = {2026},
  doi = {10.1016/j.asr.2026.04.096},
  url = {https://doi.org/10.1016/j.asr.2026.04.096}
}