Meteorological observations at Lincoln: 1997

Lincoln meteorological observations have been taken at a range of sites over the years. A NIWA report (Mullan, A.B; Stuart, S.J; Hadfield, M.G; Smith, M.J (2010). Report on the Review of NIWA's 'Seven-Station' Temperature Series. NIWA Information Series No. 78. pp.129-154) records a number of these along with the work undertaken to reconcile the data between different sites. It is not yet clear which site(s) these measurements were taken at as we have not yet identified a correspondence with NIWA's records.<br><br>The datasets had been stored as .DAT files. The .DAT files have been uploaded as is, and also standardised and converted into .csv format.<br><br>Headers: The original .DAT files were stored without headers. Most of these could be recovered for the .csv by running the data through an old program that had been used in conjunction with the data, but one column remains "unknown".<br><br>Missing data: In the .DAT files, missing measurements are variously recorded, depending on context, as 0, -9, -99 or (in the case of Cloud cover) 9. In the .csv these values have been removed and left blank.<br><br>Units are most likely:<br><br>* solar radiation - probably MJ/m2 (megajoules per square metre)<br>* temperatures - Celsius (in early years possibly converted from an original measurement in Fahrenheit)<br>* rainfall - millimetres<br>* cloud - oktas (eighths of the sky taken up by cloud)<br>* wind run - kilometres<br>* vapour pressure - probably Pa (pascals)Lincoln meteorological observations have been taken at a range of sites over the years. A NIWA report (Mullan, A.B; Stuart, S.J; Hadfield, M.G; Smith, M.J (2010). Report on the Review of NIWA's 'Seven-Station' Temperature Series. NIWA Information Series No. 78. pp.129-154) records a number of these along with the work undertaken to reconcile the data between different sites. It is not yet clear which site(s) these measurements were taken at as we have not yet identified a correspondence with NIWA's records.<br><br>The datasets had been stored as .DAT files. The .DAT files have been uploaded as is, and also standardised and converted into .csv format.<br><br>Headers: The original .DAT files were stored without headers. Most of these could be recovered for the .csv by running the data through an old program that had been used in conjunction with the data, but one column remains "unknown".<br><br>Missing data: In the .DAT files, missing measurements are variously recorded, depending on context, as 0, -9, -99 or (in the case of Cloud cover) 9. In the .csv these values have been removed and left blank.<br><br>Units are most likely:<br><br>* solar radiation - probably MJ/m2 (megajoules per square metre)<br>* temperatures - Celsius (in early years possibly converted from an original measurement in Fahrenheit)<br>* rainfall - millimetres<br>* cloud - oktas (eighths of the sky taken up by cloud)<br>* wind run - kilometres<br>* vapour pressure - probably Pa (pascals)

多年来，科研团队已在林肯地区的多类观测站点开展气象观测工作。新西兰国家水与大气研究所（NIWA）于2010年发布的一篇报告（Mullan, A.B.、Stuart, S.J.、Hadfield, M.G.、Smith, M.J. 合著。《NIWA“七站点”温度序列评估报告》，NIWA信息系列第78号，第129-154页）记录了其中多组观测数据，并详述了为统一不同站点间数据标准所开展的协调工作。目前尚未明确本次观测数据的具体采集站点，因暂未匹配到NIWA的对应存档记录。<br><br>本数据集最初以.DAT格式存储。我们已原样上传原始.DAT文件，同时还将数据进行标准化处理并转换为.csv格式。<br><br>表头信息：原始.DAT文件未附带表头。通过使用此前配套该数据集的旧程序处理数据，我们已还原出绝大多数.csv文件的表头，但仍有一列的表头标识为"未知"。<br><br>缺失值处理：在.DAT文件中，根据不同应用场景，缺失的观测值会以不同的标记值记录，具体包括0、-9、-99，云量项的缺失值则标记为9。在转换后的.csv文件中，这些标记值已被移除，对应位置留空。<br><br>各观测项的推测单位如下：<br><br>* 太阳辐射：大概率为兆焦每平方米（MJ/m²）<br>* 气温：摄氏度（早期数据可能由原始华氏度测量值转换而来）<br>* 降雨量：毫米<br>* 云量：八分制云量（oktas，以天空被云覆盖的八分之一为单位）<br>* 风程：千米<br>* 水汽压：大概率为帕斯卡（Pa）