The characteristics and standardized or reference value of each indicator and the demonstration calculation process of SEWI in Jiangsu province, China.

athe combination weights of the third-order indicator;bit is the just example, and the filed value come example point;cthe procedure showing the calculation of SEIW.三阶指标的组合权重；此处仅以比特（bit）作为示例，且字段值均源自示例样本点；此为展示SEIW计算过程的相关内容。