K-Axis Science Event Log - not Quality Controlled

During the K-Axis marine voyage from mid Jan-late Feb 2016, a diverse range of sampling techniques were employed to collect specimens and data. Each sampling event was recorded by scientists and technical support staff in a logbook that was kept in the operations room on board the Aurora Australis. This is a direct digital copy/transcription of the paper logbook. event_number: A unique event identifier in the log, in the order that the events were written down (usually but not always chronologically) event_type: The code defined and used by each research project to identify the types of equipment deployed or samples collected for an event. event_type_prefix: A non-mandatory prefix field used by some research projects to identify the type of an event event_type_number: A sequential number or alphanumeric-number combination defined and used by each research project to identify unique equipment deployment or sample collection events station_number: A universal (voyage-wide) station number used across all projects to identify a nominal lat/lon position defined during voyage planning leg: A nominally straight-line section of the voyage track defined during voyage planning. The voyage track was planned as a series of roughly N-S and E-W transects that intersected in some locations. Legs start at a station and continue through more stations to a vertex-station which is the start of the next leg. Legs are numbered consecutively. waypoint: A GPS waypoint used by Aurora Australis crew, AAD science technical support and researchers to identify target lat/lon positions in the voyage. Some waypoints correspond with station numbers. start_date_utc: The start date of the event in UTC start_time_utc: The start time of the event in UTC start_lat_deg: The latitude (whole degrees) of the vessel at the beginning of the event start_lat_min: The latitude (minutes) of the vessel at the beginning of the event start_lat_dec_deg: The latitude (decimal degrees) of the vessel at the beginning of the event start_lon_deg: The longitude (whole degrees) of the vessel at the beginning of the event start_lon_min: The longitude (minutes) of the vessel at the beginning of the event start_lon_dec_deg: The longitude (decimal degrees) of the vessel at the beginning of the event end_date_utc: The end date of the event in UTC end_time_utc: The end time of the event in UTC end_lat_deg: The latitude (whole degrees) of the vessel at the end of the event end_lat_min: The latitude (minutes) of the vessel at the end of the event end_lat_dec_deg: The latitude (decimal degrees) of the vessel at the end of the event end_lon_deg: The longitude (whole degrees) of the vessel at the end of the event end_lon_min: The longitude (minutes) of the vessel at the end of the event end_lon_dec_deg: The longitude (decimal degrees) of the vessel at the end of the event remarks: Comments/remarks written by researchers when completing the paper log transcribe_comments: Comments/remarks made by the transcriber when the log was digitised2016年1月中旬至2月下旬的K轴海洋航次期间，研究团队采用多样化采样技术采集标本与相关数据。每一次采样作业均由科学家与技术支持人员记录于“南极光号（Aurora Australis）”作业舱内的纸质日志簿中，本数据集为该纸质日志簿的直接数字化转录副本。 ## 字段说明 1. **事件编号（event_number）**：日志内唯一的事件标识符，按事件记录顺序编排（通常但不严格遵循时间先后顺序）。 2. **事件类型（event_type）**：各研究项目自定义的编码，用于标识本次作业所部署的设备类型或采集的样本类型。 3. **事件类型前缀（event_type_prefix）**：部分研究项目使用的非必填前缀字段，用于标识事件类型。 4. **事件类型编号（event_type_number）**：各研究项目自定义的连续编号或字母数字组合，用于唯一标识单次设备部署或样本采集事件。 5. **测站编号（station_number）**：全航次通用的测站编号，用于识别航次规划阶段预先定义的标称经纬度位置。 6. **航段（leg）**：航次规划阶段预先定义的航迹直线段。本次航迹规划为一系列大致呈南北向与东西向的断面，部分位置存在交汇。航段始于一个测站，途经多个测站后终止于顶点测站，该顶点测站亦是下一航段的起点。航段按顺序连续编号。 7. **航路点（waypoint）**：“南极光号（Aurora Australis）”船员、澳大利亚南极局（Australian Antarctic Division，AAD）科学技术支持人员与研究者用于标识航次目标经纬度位置的GPS航路点，部分航路点与测站编号相对应。 8. **UTC开始日期（start_date_utc）**：事件开始的协调世界时（Coordinated Universal Time，UTC）日期。 9. **UTC开始时间（start_time_utc）**：事件开始的协调世界时（Coordinated Universal Time，UTC）时间。 10. **起始纬度整度数（start_lat_deg）**：事件开始时船舶所在纬度的整度数部分。 11. **起始纬度弧分（start_lat_min）**：事件开始时船舶所在纬度的弧分部分。 12. **起始纬度十进制度数（start_lat_dec_deg）**：事件开始时船舶所在纬度的十进制度数表示形式。 13. **起始经度整度数（start_lon_deg）**：事件开始时船舶所在经度的整度数部分。 14. **起始经度弧分（start_lon_min）**：事件开始时船舶所在经度的弧分部分。 15. **起始经度十进制度数（start_lon_dec_deg）**：事件开始时船舶所在经度的十进制度数表示形式。 16. **UTC结束日期（end_date_utc）**：事件结束的协调世界时（Coordinated Universal Time，UTC）日期。 17. **UTC结束时间（end_time_utc）**：事件结束的协调世界时（Coordinated Universal Time，UTC）时间。 18. **结束纬度整度数（end_lat_deg）**：事件结束时船舶所在纬度的整度数部分。 19. **结束纬度弧分（end_lat_min）**：事件结束时船舶所在纬度的弧分部分。 20. **结束纬度十进制度数（end_lat_dec_deg）**：事件结束时船舶所在纬度的十进制度数表示形式。 21. **结束经度整度数（end_lon_deg）**：事件结束时船舶所在经度的整度数部分。 22. **结束经度弧分（end_lon_min）**：事件结束时船舶所在经度的弧分部分。 23. **结束经度十进制度数（end_lon_dec_deg）**：事件结束时船舶所在经度的十进制度数表示形式。 24. **备注（remarks）**：研究者填写纸质日志时添加的注释与说明。 25. **转录备注（transcribe_comments）**：日志数字化转录过程中，转录人员添加的注释与说明。