Articles | Volume 15, issue 22
Geosci. Model Dev., 15, 8561–8579, 2022
https://doi.org/10.5194/gmd-15-8561-2022
Geosci. Model Dev., 15, 8561–8579, 2022
https://doi.org/10.5194/gmd-15-8561-2022
Development and technical paper
23 Nov 2022
Development and technical paper | 23 Nov 2022

Lightning assimilation in the WRF model (Version 4.1.1): technique updates and assessment of the applications from regional to hemispheric scales

Daiwen Kang et al.

Data sets

Lightning Assimilation in the Weather Research and Forecasting (WRF) Model: Technique Updates and Assessment of the Applications from Regional to Hemispheric Scales (1.0) Daiwen Kang, Nickolas Heath, Robert Gilliam, Tanya Spero, and Jonathan Pleim https://doi.org/10.5281/zenodo.6493145

WRFv4.1.1 (Version 4.1.1) University Corporation for Atmospheric Research https://github.com/wrf-model/WRF/tree/v4.1.1

The lightning flashes data from National Lightning Detection Network Vaisala Inc. https://www.vaisala.com/en/products/systems/lightning-detection

Lightning flash data from the World Lightning Location Network University of Washington http://wwlln.net

PRISM High-Resolution Spatial Climate Data for the United States University Corporation for Atmospheric Research https://climatedataguide.ucar.edu/climate-data/prism-high-resolution-spatial-climate-data-united-states-maxmin-temp-dewpoint

CPC Global Unified Gauge-Based Analysis of Daily Precipitation National Oceanic and Atmospheric Administration https://psl.noaa.gov/data/gridded/data.cpc.globalprecip.html

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Short summary
A lightning assimilation (LTA) technique implemented in the WRF model's Kain–Fritsch (KF) convective scheme is updated and applied to simulations from regional to hemispheric scales using observed lightning flashes from ground-based lightning detection networks. Different user-toggled options associated with the KF scheme on simulations with and without LTA are assessed. The model's performance is improved significantly by LTA, but it is sensitive to various factors.