Gridded Standardized Precipitation-Evapotranspiration Index (SPEI) using generalised logistic distribution with standard period 1961-2010 for Great Britain [SPEIgenlog61-10]

1km and 5km gridded Standardised Precipitation-Evapotranspiration Index (SPEI) data for Great Britain, which is a drought index based on the probability of Climatic Water Balance (CWB) - which is equivalent to the amount of precipitation minus the amount of evapotranspiration - for a given accumulation period as defined by Vicente Serrano et al. (2010). SPEI is calculated for different accumulation periods: 1, 3, 6, 12, 18, 24 months. Each of these is in turn calculated for each of the twelve calendar months. Note that values in monthly (and for longer accumulation periods also annual) time series of the data therefore are likely to be autocorrelated. The standard period which was used to fit the generalised logistic distribution is 1961-2010. The dataset covers the period from 1961 to 2012. Full details about this dataset can be found at https://doi.org/10.5285/d201a2af-568e-4195-bf02-961fb6954c72

本数据集包含针对大不列颠地区1公里和5公里格网标准化的降水量-蒸散量指数（SPEI）数据，SPEI指数为一项基于气候水分平衡（CWB）概率的干旱指标，其中CWB等同于降水量减去蒸散量，其计算依据为Vicente Serrano等人在2010年所定义的特定累积周期。SPEI指数针对不同的累积周期进行计算，包括1、3、6、12、18、24个月，并且针对每个月份分别进行计算。值得注意的是，数据中月度（以及更长累积周期的年度）时间序列的值很可能存在自相关性。用于拟合广义逻辑分布的标准周期为1961年至2010年。该数据集涵盖了1961年至2012年期间的数据。关于此数据集的详细信息，请参阅https://doi.org/10.5285/d201a2af-568e-4195-bf02-961fb6954c72。