Ahamed et al. (2025) Identifying Baseflow Source Areas Using Remotely Sensed and Ground‐Based Hydrologic Data and Models

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

Identification

• Journal: Hydrological Processes
• Year: 2025
• Date: 2025-11-01
• Authors: Aakash Ahamed, Rosemary Knight, Joseph Janssen
• DOI: 10.1002/hyp.70322

Research Groups

The abstract does not specify research groups, labs, or departments involved.

Short Summary

This study developed a data-driven approach using satellite and ground-based data to assess the spatial influence of rainfall and snowmelt on baseflow in California's Sierra Nevada. It revealed that snowmelt occurring in the 3000–3700 m elevation range is the most significant driver of baseflow, rather than areas with the highest annual rainfall or snowmelt rates.

Objective

• To develop a data-driven approach leveraging satellite Earth observation and ground-based data to assess the degree to which baseflow is influenced by upstream rainfall and snowmelt in California's Sierra Nevada.

Study Configuration

• Spatial Scale: California's Sierra Nevada mountain range.
• Temporal Scale: Analysis of streamflow time series; specific duration not mentioned.

Methodology and Data

• Models used: Low-pass filtering technique (for baseflow separation), time series methods, and information theory methods.
• Data sources: Satellite Earth observation data, ground-based data, and streamflow time series.

Main Results

• Areas with the strongest impact on baseflow through rainfall and snowmelt are not necessarily those experiencing the highest annual rates of snowmelt or rainfall.
• Snowmelt occurring in the 3000–3700 m elevation range was found to be the most important driver of baseflow.

Contributions

• Development of a novel data-driven approach to assess spatial couplings between rainfall, snowmelt, and baseflow, addressing limitations of traditional geochemical tracers (cost) and hydrologic models (simplifying assumptions).
• Characterization of specific elevation zones that exert a prevailing influence on baseflow through snowmelt.

Funding

The abstract does not contain information regarding funding projects, programs, or reference codes.

Citation

@article{Ahamed2025Identifying,
  author = {Ahamed, Aakash and Knight, Rosemary and Janssen, Joseph},
  title = {Identifying Baseflow Source Areas Using Remotely Sensed and Ground‐Based Hydrologic Data and Models},
  journal = {Hydrological Processes},
  year = {2025},
  doi = {10.1002/hyp.70322},
  url = {https://doi.org/10.1002/hyp.70322}
}