Miranda et al. (2025) Satellite-based land surface temperature and soil moisture observed during the 2023–2024 drought–heatwave events in the Amazon Basin

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Environmental Research Climate
• Year: 2025
• Date: 2025-12-16
• Authors: Vitor Miranda, Ronaldo Albuquerque, João L. Geirinhas, Leonardo F. Peres, Renata Libonati, Juan C. Jiménez‐Muñoz, Isabel F. Trigo
• DOI: 10.1088/2752-5295/ae2d89

Research Groups

Not explicitly mentioned in the abstract.

Short Summary

This study investigates the interaction between soil moisture and land surface temperature during the 2023–2024 drought–heatwave events in the Amazon Basin, revealing that NE, SE, and SW regions experienced significant soil moisture deficits and high temperatures, while the NW region showed resilience.

Objective

• To investigate the interaction between soil moisture (SM) and land surface temperature (LST) during the 2023–2024 drought–heatwave (HW) events over the Amazon Basin.
• To assess the role of SM deficits in amplifying heat extremes.
• To analyze patterns of SM and LST and compare the responses across four Amazon subareas (NE, NW, SE, SW).

Study Configuration

• Spatial Scale: Amazon Basin, specifically four subareas (Northeast, Northwest, Southeast, Southwest).
• Temporal Scale: 2023–2024 drought–heatwave events, focusing on the September-November periods of 2023 and 2024.

Methodology and Data

• Models used: Not explicitly mentioned as models; analysis relies on satellite-derived products.
• Data sources: All-sky Land Surface Temperature (LST) product; Root zone Soil Moisture (SM) product provided by the Satellite Applications Facility on Support to Operational Hydrology and Water Management (H-SAF).

Main Results

• Prolonged droughts combined with persistent heatwaves accelerate soil desiccation and disrupt evapotranspiration processes.
• The NE, SE, and SW Amazon regions exhibited significant soil moisture deficits and/or high land surface temperature values during the September-November periods of 2023 and 2024, highlighting their susceptibility to extreme climatic events.
• In contrast, the NW Amazon region demonstrated relative resilience to these extreme events.

Contributions

• Highlights the vulnerability of the Amazon Basin to co-occurring drought and heatwave events, particularly in specific sub-regions.
• Emphasizes the crucial role of regional resilience in mitigating the escalating impacts of extreme climatic events.
• Provides a case study of the 2023-2024 drought-heatwave interaction over the Amazon, differentiating regional responses.

Funding

Not explicitly mentioned in the abstract.

Citation

@article{Miranda2025Satellitebased,
  author = {Miranda, Vitor and Albuquerque, Ronaldo and Geirinhas, João L. and Peres, Leonardo F. and Libonati, Renata and Jiménez‐Muñoz, Juan C. and Trigo, Isabel F.},
  title = {Satellite-based land surface temperature and soil moisture observed during the 2023–2024 drought–heatwave events in the Amazon Basin},
  journal = {Environmental Research Climate},
  year = {2025},
  doi = {10.1088/2752-5295/ae2d89},
  url = {https://doi.org/10.1088/2752-5295/ae2d89}
}