TY  - Data
T1  - High resolution climate dynamic downscaling dataset for future SSP126, SSP245, and SSP585 scenarios in inland river basins (Heihe River Basin) in arid regions (2025-2040)
A1  - ZHAO Lin
A1  - Fang Gonghuan
A1  - CHEN Hao
DO  - 10.12072/ncdc.nieer.db7030.2025
PY  - 2025
DA  - 2025-12-16
PB  - National Cryosphere Desert Data Center
AB  - This dataset adopts the WRF v4.2 regional weather model, combined with improved soil water and heat, snow parameterization schemes, and Spectral Nudging schemes, to carry out downscaling simulations of climate dynamics at 9km under different climate scenarios (SSP126, SSP245, and SSP585) in the Heihe River Basin in the future (2025-2040). The driving data used is from the global bias correction CMIP6 dataset developed by the Institute of Atmospheric Physics, Chinese Academy of Sciences (BC-CMIP6; Xu et al., 2021; https://www.nature.com/articles/s41597-021-01079-3#Sec6 ），Provide boundary and initial conditions for dynamic downscaling simulation. This dataset is based on 18 CMIP6 pattern data, and ERA5 reanalysis data is used for mean and variance bias correction, while introducing non-linear trends from the Multi Pattern Set (MME). The corrected data exhibits climate statistical characteristics of the ERA5 baseline period while effectively preserving future climate change trends, with a spatial resolution of 1.25 °× 1.25 ° and a time step of 6 hours. The high-resolution hydro meteorological forcing field output by WRF is further processed through time interpolation, daily scale statistics, and spatial interpolation, ultimately forming a 0.1 °× 0.1 °, daily scale gridded data product. The data is published in NetCDF (. nc) format, with the file named {Variable Name} _ {Year} _SJT_interp.nc (where {Variable Name} is the variable name and {Year} is the corresponding year), and the time system uses Beijing Time (BJT, UTC+8). The dataset includes daily cumulative precipitation, daily maximum/minimum temperature, daily cumulative shortwave radiation, daily average wind speed of 10 meters, and daily average relative humidity of 2 meters. It can provide high-resolution meteorological forcing data for watershed scale hydrological simulation, ecological process research, and climate change impact assessment.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/e8a8a8d2-37a2-466d-83e7-97ed13fff833
ER  -