Climate variable summary.

Average values of Adaptwest baseline (1960–1990) climate for the Kenai Peninsula, Alaska. We summarized annual heat moisture index, precipitation as snow, mean annual precipitation, and Hargreve’s reference evapotranspiration because these are the 4 highest variables ranked for importance in the Random Forest model. We summarized mean annual temperature because temperature interacts with precipitation to calculate the annual heat moisture index and Hargreaves reference evaporation. We calculate the percent change from baseline for the 6 future climate forecasts using 3 GCMs and 2 RCPs in 2080.

本数据集涵盖阿拉斯加州基奈半岛1960–1990年Adaptwest基线（Adaptwest Baseline）的气候平均值。我们选取在随机森林（Random Forest）模型中重要性排名前四的变量进行汇总，分别为年热湿度指数（Annual Heat Moisture Index）、降雪量（Snow Precipitation）、年平均降水量（Mean Annual Precipitation）及哈格里夫斯参考蒸散量（Hargreaves Reference Evapotranspiration）。此外，我们额外汇总了年平均气温（Mean Annual Temperature），这是由于气温与降水共同参与年热湿度指数及哈格里夫斯参考蒸发量（Hargreaves Reference Evaporation）的计算。最后，我们基于3个全球气候模式（General Circulation Models，GCMs）与2个典型浓度路径（Representative Concentration Pathways，RCPs），计算得到2080年6套未来气候预估结果相较于该基线的百分变化率。