Air temperature measurements from Automatic Weather Station (AWS) at Freiburg – Chemiehochhaus (FRCHEM) from 2007-01-01 to 2007-12-31 [L2]

Quality controlled and gap-filled continuous air temperature data from the urban rooftop weather station at Freiburg-Chemiehochhaus (FRCHEM, 7.8486ºE, 48.0011ºN, 323.5 m) using an actively ventillated and shielded psychrometer operated 2m above roof level. Quality controlled air temperature data are available and aggregated at 10min, 30min, hourly, daily, monthly and yearly resolution for the year 2007. Average, minimum and maximum air temperatures are provided on hourly, daily, monthly and annual scales. Characteristic hours and days are reported on daily, monthly and annual scales (e.g. summer days with T_max > 25ºC, hot days with T_max > 30º, desert days with T_max > 35ºC, tropical nights with T_min > 20°, frost days with T_min < 0ºC and ice days with T_max < 0ºC, all based on 00:00 - 24:00 UTC). Detailed information on gap-filled data is provided. Note: All times are provided in UTC, not local time. For more details read `FRCHEM_2007_AirTemperature_MetaData.txt`.本数据集为弗赖堡化学大厦（Freiburg-Chemiehochhaus，缩写FRCHEM，东经7.8486°、北纬48.0011°，海拔323.5米）城市屋顶气象站的经质量控制并完成缺失值插补的连续气温数据，该站点采用主动通风防护式干湿表（psychrometer），安装于屋顶上方2米高度处。 该数据集的质量控制气温数据已按10分钟、30分钟、逐小时、逐日、逐月及逐年时间分辨率进行聚合，覆盖2007年全年。 数据集提供逐小时、逐日、逐月及逐年尺度下的平均气温、最低气温与最高气温。 数据集还报告了逐日、逐月及逐年尺度下的典型时日特征，例如：日最高气温大于25℃的夏日、日最高气温大于30℃的炎热日、日最高气温大于35℃的酷热日、日最低气温大于20℃的热带夜、日最低气温小于0℃的霜日，以及日最高气温小于0℃的结冰日，上述统计均基于协调世界时（UTC）00:00至24:00时段。 已完成缺失值插补的详细信息亦已同步提供。 注：所有时间均采用协调世界时（UTC），而非当地时间。 如需了解更多细节，请参阅`FRCHEM_2007_AirTemperature_MetaData.txt`文件。