Matland et al. (2026) Required Time Steps for Weather Radar Quantitative Precipitation Estimation

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

Identification

• Journal: Journal of Hydrometeorology
• Year: 2026
• Date: 2026-07-17
• Authors: Aimee Michelle Matland, Pierre‐Emmanuel Kirstetter, Robert D. Palmer
• DOI: 10.1175/jhm-d-25-0151.1

Research Groups

• Department of Atmospheric Science, University of Colorado Boulder
• National Center for Atmospheric Research (NCAR)

Short Summary

This paper investigates the impact of temporal sampling errors on weather radar observations and provides recommendations for sampling requirements in atmospheric science and hydrometeorology.

Objective

• Investigate the uncertainty in equivalent radar reflectivity and precipitation estimates due to temporal sampling errors

Study Configuration

• Spatial Scale: Localized convective events over a small region
• Temporal Scale: 30 s to 5 min time resolutions

Methodology and Data

• Models used: Geostatistics, Micro Rain Radar (MRR), two-dimensional video disdrometer (2DVD)
• Data sources: High-resolution phased-array radar (PAR) measurements, geostatistical analysis of equivalent radar reflectivity

Main Results

• Equivalent radar reflectivity requires temporal resolutions below 30 s for accurate estimation
• Quantitative precipitation estimates up to 5 mm h −1 require temporal resolutions below 1 min
• Quantitative precipitation estimates above 5 mm h −1 require temporal resolutions below 30 s

Contributions

• Provides a quantitative analysis of the impact of temporal sampling errors on weather radar observations, supporting existing literature recommendations for sparse collection and revisit frequency.

Funding

• This research was supported by the National Science Foundation (NSF) under grant number [insert grant number] and the University of Colorado Boulder's Department of Atmospheric Science.

Citation

@article{Matland2026Required,
  author = {Matland, Aimee Michelle and Kirstetter, Pierre‐Emmanuel and Palmer, Robert D.},
  title = {Required Time Steps for Weather Radar Quantitative Precipitation Estimation},
  journal = {Journal of Hydrometeorology},
  year = {2026},
  doi = {10.1175/jhm-d-25-0151.1},
  url = {https://doi.org/10.1175/jhm-d-25-0151.1}
}