Entry data of various agricultural activities (annual reporter, historical)

ASCII. In a PH_Annual Detector* file, all observations for each activity (e.g. fieldwork) are with a fixed object_id (e.g. 501). The rows are sorted by Stations_id, Reference Year, Phase_id. Each line corresponds to the entry of a phase. A list of all stations is available at: https://opendata.dwd.de/climate_environment/CDC/help/PH_Beschreibung_Phaenologie_Stationen_Jahresmelder.txt . Fieldwork, grazing. The phenological observers carry out observation sessions in a defined area. A station ID has been assigned to this area by the measurement network management. Observers shall record the beginning or end of certain agricultural activities. Further information: https://opendata.dwd.de/climate_environment/CDC/observations_germany/phenology/annual_reporters/farming/historical/BESCHREIBUNG_obsgermany_phenology_annual_reporters_farming_historical_de.pdfASCII格式。在PH_Annual Detector* 文件中，各类农事活动（例如田间作业）的所有观测数据均绑定固定的对象标识符（object_id），示例值为501。数据行按照站点编号（Stations_id）、参考年份（Reference Year）、阶段编号（Phase_id）排序。每一行对应一个观测阶段的条目。所有站点的列表可通过以下链接获取：https://opendata.dwd.de/climate_environment/CDC/help/PH_Beschreibung_Phaenologie_Stationen_Jahresmelder.txt 。 田间作业、放牧。 物候观测人员在指定区域内开展观测工作。该区域已由观测网络管理部门分配了站点编号。观测人员需记录特定农事活动的起始与结束节点。 更多详细信息可参阅：https://opendata.dwd.de/climate_environment/CDC/observations_germany/phenology/annual_reporters/farming/historical/BESCHREIBUNG_obsgermany_phenology_annual_reporters_farming_historical_de.pdf