Air temperature measurements from Automatic Weather Station (AWS) at Freiburg – Chemiehochhaus (FRCHEM) from 2020-01-01 to 2020-12-31 [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 2020. 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_2020_AirTemperature_MetaData.txt`. Version 1.1 contains additionally air temperature data aggregated at 10min and 30min.本数据集源自弗赖堡化工大厦（FRCHEM，东经7.8486°，北纬48.0011°，海拔323.5米）的城市屋顶气象站，为经质量控制且已填补缺失值的连续气温序列，观测仪器为安装于屋顶上方2米处的主动通风遮蔽式干湿球温度表。 本数据集包含2020年的经质量控制气温数据，聚合分辨率涵盖10分钟、30分钟、小时、日、月及年尺度。 数据提供小时、日、月及年尺度下的平均、最低与最高气温。 按日、月、年尺度统计特征时段与特征日（例如以协调世界时（UTC）00:00至24:00为统计基准：最高气温大于25℃的夏日、最高气温大于30℃的酷热日、最高气温大于35℃的酷暑日、最低气温大于20℃的热带夜、最低气温小于0℃的霜日以及最高气温小于0℃的冰日）。 已填补缺失值的数据的详细说明亦一并提供。 注意：所有时间均采用协调世界时（UTC），而非当地时间。 如需获取更多细节，请查阅`FRCHEM_2020_AirTemperature_MetaData.txt`文件。 版本1.1额外新增了10分钟与30分钟聚合分辨率的气温数据。