Description

This study compares the impacts of global warming and intense urban anthropogenic heat (AH) on extreme hourly precipitation over the Pearl River Delta (PRD) megacity, located in coastal South China. The datasets were generated using the cloud-resolving Weather Research and Forecasting (WRF) model version 3.8.1 coupled with the single-layer urban canopy model (SLUCM). Boundary conditions were derived from PRD extreme rainfall episodes, identified from the Geophysical Fluid Dynamics Laboratory Earth System Model (GFDL-ESM2M) historical and RCP8.5 runs. The innermost domain with spatial resolution of 2km were archived.

Four downscaling experiments were carried out: 1) zero AH under historical climate condition, 2) 300 W/m2 as diurnal maximum AH values prescribed over PRD urban grids under historical climate condition, 3) zero AH under projected climate representative concentration pathway (RCP) 8.5 climate condition, and 4) 300 W/m2 as diurnal maximum AH under RCP8.5 climate condition. Hourly variables (e.g. 2m temperature, 10m wind, rain, etc.) required to drive hydrological models (e.g. WRF-Hydro) were archived.

For details, please refer to :
Fung, K., Tam, C., Lee, T. and Wang, Z., 2021. Comparing the Influence of Global Warming and Urban Anthropogenic Heat on Extreme Precipitation in Urbanized Pearl River Delta Area Based on Dynamical Downscaling. Journal of Geophysical Research: Atmospheres, 126(21), doi: 10.1029/2021JD035047.

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Data Information

The whole dataset is about 589 GB large.

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The above open-access data are distributed under the terms of Creative Commons Attribution 4.0 International License.