Global gridded data sets of observed extremes indices underpin assessments of changes in climate extremes. However, similar efforts to enable the assessment of indices relevant to different sectors of society have been missing. Here we present a data set of sector-specific indices, based on daily station data, that extends the HadEX3 data set of climate extremes indices. These additional indices, which can be used singly or in combinations, have been recommended by the World Meteorological Organization and are intended to empower decision makers in different sectors with accurate historical information about how sector-relevant measures of the climate are changing, especially in regions where in situ daily temperature and rainfall data are hard to come by. The annual and/or monthly indices have been interpolated on to a 1.875° × 1.25° longitude-latitude grid for 1901–2018. We show changes in globally-averaged time series of these indices in comparison with reanalysis products. Changes in temperature-based indices are consistent with global scale warming, with days with T_max > 30°C (TXge30) increasing virtually everywhere with potential impacts on crop fertility. At the other end of the scale, the number of days with T_min < −2°C (TNltm2) are reducing, decreasing potential damage from frosts. Changes in heat wave characteristics show increases in the number, duration and intensity of these extreme events in most places. The gridded netCDF files and, where possible, the underlying station indices are available from https://www.metoffice.gov.uk/hadobs/hadex3 and https://www.climdex.org.

中文翻译：

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观测到的与部门相关的极端气候指数的全球变化——HadEX3 的扩展

观测到的极端事件指数的全球网格数据集支撑着对气候极端事件变化的评估。然而，缺乏类似的努力来评估与社会不同部门相关的指数。在这里，我们提出了基于每日站点数据的特定部门指数数据集，该数据集扩展了 HadEX3 极端气候指数数据集。这些附加指数可以单独或组合使用，由世界气象组织推荐，旨在为不同部门的决策者提供有关部门相关气候措施如何变化的准确历史信息，特别是在区域内很难获得现场每日气温和降雨量数据。 1901-2018 年年度和/或月度指数已插值到 1.875° × 1.25° 经纬度网格上。我们将这些指数的全球平均时间序列的变化与再分析产品进行比较。基于温度的指数变化与全球变暖相一致，T _max  > 30°C (TXge30) 的天数几乎随处增加，对作物肥力产生潜在影响。另一方面，T _min  < -2°C (TNltm2) 的天数正在减少，从而减少了霜冻的潜在损害。热浪特征的变化表明，大多数地方这些极端事件的数量、持续时间和强度都在增加。网格化的 netCDF 文件以及基础台站索引（如果可能）可从 https://www.metoffice.gov.uk/hadobs/hadex3 和 https://www.climdex.org 获取。