Quantifying Cloud-Fog-Induced Reductions in Near-Surface Solar Radiation Using the Reduction Ratio Method

Version history Version 2: This version updates Figure1.py and MainFigure.ipynb to match the revised manuscript submitted to Geophysical Research Letters. Specifically, a scale bar was added to Figure 1. No changes were made to the input datasets, analysis workflow, or scientific results. Code All results were analyzed and visualized by Python version 3.9.18. Filename Description MainFigures.ipynb Jupyter Notebook for reproduce all figures in the article. Figure*.py Python file for reproduce each figure in the article. Data Ground Station Observation Filename Description 467530_hr_19800101_20230101.csv Alishan station data managed by Central Weather Administration (CWA) of Taiwan, which is generated from Atmospheric Science Research and Application Databank. Solar Radiation Reduction Ratio (RRSR) Results Filename Description ReductionRatio_20151001_20220930_31_daily.nc RRSR of Taiwan (119.9°E–122.1°E, 21.8°N–25.4°N, 0.01° x 0.01°) from 2015-10-01 to 2022-09-30, which is generated from TCCIP Grid-point Surface Insolation Derived from Geostationary Satellite Dataset. *_hr_20151001_20220930_seasonal.csv Seasonal mean RRSR for 6 CWA stations (Alishan, Anbu, Yushan, Sun Moon Lake, Chiayi, and Keelung). *_hr_20151001_20220930_DJF_NE_means.csv Winter (December–February) event-mean RRSR for 6 CWA stations (Alishan, Anbu, Yushan, Sun Moon Lake, Chiayi, and Keelung). Land and Non-rainy Mask Filename Description LandNonRainyMask_2015_2022.nc Mask for land area and non-rainy data, which is generated from TCCIP Gridded Historical Daily Dataset for Taiwan. Land-type Classification Generated from Schulz et al. (2017). Filename Description MCF2017.zip Shapefile of montane cloud forests (MCFs) region in Taiwan. nonMCF2017.zip Shapefile of forest region other than montane cloud forest in Taiwan. MCFfraction_TCCIP.npy Forest classification in Taiwan regrid to TCCIP dataset. North-easterlies events classification Adopted from Taiwan Atmospheric Event Database. Filename Description TAD_NE.csv North-easterlies events classification based on the criteria of Taiwan Atmospheric Event Database (TAD). Others Generated from Open Data in Taiwan. Filename Description Taiwan_WGS84.zip Shapefile of coastlines of Taiwan. dem20_TCCIPInsolation.nc Digital Elevation Model of Taiwan regrid to TCCIP dataset. Note Please unzip .zip first to get shapfile before reproduce the figures in the article.