Imaki (2026) Application of coherent lidar technique: Water vapor DIAL and data assimilation for three-dimensional wind flow reconstructions

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

Identification

• Journal: Springer Link (Chiba Institute of Technology)
• Year: 2026
• Date: 2026-04-09
• Authors: Masaharu Imaki
• DOI: 10.1051/epjconf/202636214004/pdf

Research Groups

Not explicitly mentioned in the provided text, but implies the authors' research group.

Short Summary

This research expands coherent Doppler lidar (CDL) to coherent differential absorption lidar (DIAL) and integrates it with computational fluid dynamics (CFD) data assimilation. It demonstrates a coherent DIAL system for simultaneous water vapor and wind speed measurement, and a CFD technique for reconstructing three-dimensional wind flow using lidar data.

Objective

• To expand wind sensing coherent Doppler lidar (CDL) technologies to coherent differential absorption lidar (DIAL) and data assimilation with computational fluid dynamics (CFD) simulation, demonstrating their capabilities for simultaneous water vapor and wind speed measurement and three-dimensional wind flow reconstruction.

Study Configuration

• Spatial Scale: Local atmospheric volume (three-dimensional wind flow reconstruction).
• Temporal Scale: Not explicitly mentioned, but implies dynamic measurement and reconstruction processes.

Methodology and Data

• Models used:
  • Coherent Differential Absorption Lidar (DIAL) system
  • Computational Fluid Dynamics (CFD) simulation
  • Data assimilation technique (integrating lidar data with CFD)
• Data sources:
  • Lidar data (specifically from the coherent DIAL system)

Main Results

• A coherent DIAL system was demonstrated for simultaneous measurement of water vapor and wind speed.
• A data assimilation CFD technique was shown to reconstruct three-dimensional wind flow using lidar data.

Contributions

• Expansion of existing wind sensing coherent Doppler lidar (CDL) technologies to coherent differential absorption lidar (DIAL).
• Integration of coherent DIAL with computational fluid dynamics (CFD) data assimilation.
• Development of a system capable of simultaneous water vapor and wind speed measurement using coherent DIAL.
• Development of a technique for three-dimensional wind flow reconstruction by assimilating lidar data into CFD simulations.

Funding

Not mentioned in the provided text.

Citation

@article{Imaki2026Application,
  author = {Imaki, Masaharu},
  title = {Application of coherent lidar technique: Water vapor DIAL and data assimilation for three-dimensional wind flow reconstructions},
  journal = {Springer Link (Chiba Institute of Technology)},
  year = {2026},
  doi = {10.1051/epjconf/202636214004/pdf},
  url = {https://doi.org/10.1051/epjconf/202636214004/pdf}
}