Supporting files for "Climate change may have limited effect on global risk of potato late blight"

Supporting files for "Climate change may have limited effect on global risk of potato late blight" (Sparks et al. 2014). Code is freely available on GitHub, http://adamhsparks.github.io/Global-Late-Blight-Modelling/. <strong>A2 Files</strong> The A2 climate files files are <em>ensemble models</em> (averages) of the following three models: BCCR BCM2.0 (Bjerknes Centre for Climate Research Bergen Climate Model Version 2.0 Commonwealth Scientific and Industrial Research Organization GCM mark 3), CSIRO mk3.0 (Commonwealth Scientific and Industrial Research Organization GCM mark 3) and INMCM3.0 (Institute for Numerical Mathematics Version 3.0 Model). The original A2 emission scenario files were obtained from the Program for Climate Model Diagnosis and Intercomparison (PCMDI) and the WCRP Working Group on Coupled Modelling (WGCM) and downscaled using the delta method to 10 arcminute resolution. Data include maximum temperature, minimum temperature, mean temperature, relative humidity and precipitation. Three time-slices are represented: 2000-2019, 2040-2059 and 2080-2099. <strong> Daily and Monthly Files</strong> These tables contain blight units as calculated by the SimCast model, using HUSWO (Hourly US Weather Observations; NOAA) for resistant and susceptible potato cultivars. These files are used for the creation of the SimCastMeta GAM (Sparks et al. 2011). Daily files are the original blight unit output from the SimCast model (Grünwald et al. 2002) and corresponding temperature and relative humidity values. Monthly files are monthly averages of blight units and corresponding temperature and relative humidity values. <strong>SimCastMeta Look Up Files</strong> These tables contain the blight unit output of the SimCastMeta model along with corresponding temperature and relative humidity values which generate the blight units. Can be used in other applications as a look-up table rather than recreating the whole model in R.

本数据集为论文《气候变化对全球马铃薯晚疫病风险影响有限》（Sparks等，2014）的配套支持文件，代码可于GitHub免费获取，链接为http://adamhsparks.github.io/Global-Late-Blight-Modelling/。

### A2数据集文件
A2气候数据集为以下三个模式的集合平均模型（ensemble model）：BCCR BCM2.0（比耶克内斯气候研究中心卑尔根气候模式2.0版）、CSIRO mk3.0（英联邦科学与工业研究组织GCM标记3.0版）以及INMCM3.0（数值数学研究所3.0版模式）。原始A2排放情景文件来源于气候模式诊断与比较计划（Program for Climate Model Diagnosis and Intercomparison, PCMDI）与世界气候研究计划（WCRP）耦合模式工作组（WGCM），并通过delta降尺度方法处理至10角分分辨率。数据集包含最高气温、最低气温、平均气温、相对湿度与降水量，涵盖3个时间切片：2000-2019年、2040-2059年及2080-2099年。

### 日度与月度数据集文件
此类表格包含基于SimCast模型，利用美国每小时气象观测数据（Hourly US Weather Observations, HUSWO；美国国家海洋和大气管理局, NOAA）针对抗、感马铃薯品种计算得到的疫病单位。本类文件用于构建SimCastMeta广义加性模型（Generalized Additive Model, GAM，Sparks等，2011）。其中，日度文件为SimCast模型（Grünwald等，2002）输出的原始疫病单位数据及对应的气温、相对湿度数值；月度文件为疫病单位与对应气温、相对湿度的月度平均值。

### SimCastMeta查找表文件
此类表格包含SimCastMeta模型输出的疫病单位数据，以及生成该疫病单位所需的对应气温与相对湿度数值。可在其他应用中作为查找表直接调用，无需在R语言环境中重新构建完整模型。