Coefficients of the regression model for visual range (VR) and air pollution index (API) during Period-1 (1973–1982), Period-2 (1983–1995), Period-3 (1996–2005), and Period-4 (2006–2010) in Chengdu.
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https://figshare.com/articles/dataset/_Coefficients_of_the_regression_model_for_visual_range_VR_and_air_pollution_index_API_during_Period_1_1973_8211_1982_Period_2_1983_8211_1995_Period_3_1996_8211_2005_and_Period_4_2006_8211_2010_in_Chengdu_/748465
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aStandard deviation.bSample number of the monthly average values of each VR and API.cCorrelation coefficient.dAnnual rate of change: R = 12β (km yr−1 for VR for API yr−1).ePeriod-3 for the API was from 2000–2005.
创建时间：
2015-12-02
