Soil moisture deficit during the vegetation growing season, annual time-series, 2000-2021, Aug. 2022

The dataset consists of a collection of annual soil moisture (SM) anomalies during the vegetation growing season (GS) for the years 2000-2021 across EEA 38 area and the United Kingdom. The vegetation growing season is defined by EEA´s phenology data series "Vegetation growing season length 2000-2021", available in the EEA website and in this catalogue. The anomalies are calculated based on the European Commission's Joint Research Centre European Drought Observatory (EDO) Soil Moisture Index (SMI) with respect to the 1995–2019 base period. The yearly start and end of GS periods are dynamic and calculated according to the EEA Phenology Indicators. A positive anomaly indicates that the observed SM was wetter than the long-term SM average for the base period, while a negative anomaly indicates that the observed SM was drier than the reference value. Because SM anomalies are measured in units of standard deviation from the long-term SMI average, they can be used to compare annual deficits/surplus of SM between geographic regions. EDO is one of the early warning and monitoring systems of the Copernicus Emergency Management Service. As the dataset builds on EDO's SMI, it therefore contains modified Copernicus Emergency Management Service information. This is version 01.01 of a previous dataset: Soil moisture deficit during the vegetation growing season, annual time-series, 2000-2019, Sep. 2020.本数据集包含2000-2021年间欧洲环境署(European Environment Agency, EEA)38区及英国境内植被生长季(vegetation growing season, GS)的年度土壤湿度(soil moisture, SM)距平数据。其中植被生长季由欧洲环境署的物候数据序列“2000-2021年植被生长季长度”定义，该数据可在欧洲环境署官网及本目录中获取。 该距平数据基于欧盟委员会联合研究中心(Joint Research Centre)欧洲干旱观测站(European Drought Observatory, EDO)的土壤湿度指数(Soil Moisture Index, SMI)，以1995-2019年为基准期计算得到。植被生长季的年度起止时间为动态值，依据欧洲环境署物候指标计算得出。正距平表示观测到的土壤湿度高于基准期的长期土壤湿度平均值，负距平则表示观测值低于该参考值。由于土壤湿度距平以相对于长期土壤湿度指数平均值的标准差为单位，因此可用于比较不同地理区域间土壤湿度的年度亏缺与盈余情况。 欧洲干旱观测站(EDO)是哥白尼应急管理服务(Copernicus Emergency Management Service)的早期预警与监测系统之一。本数据集依托EDO的土壤湿度指数构建，因此包含经修改的哥白尼应急管理服务信息。 本数据集为2020年9月发布的旧数据集《植被生长季土壤湿度亏缺年度时间序列（2000-2019）》的01.01版本。