Air temperature measurements from Automatic Weather Station (AWS) at Freiburg – Chemiehochhaus (FRCHEM) from 2024-01-01 to 2024-12-31 [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 2024.

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_2024_AirTemperature_MetaData.txt`.

本数据集为弗莱堡化工大厦（Freiburg-Chemiehochhaus，缩写FRCHEM，地理坐标：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与缺测填补的连续空气温度数据，该站点采用安装于屋顶上方2米处的主动通风防辐射屏蔽式干湿表进行观测。

2024年的经质量控制空气温度数据已按10分钟、30分钟、小时、日、月、年的时间分辨率进行聚合并对外提供。

数据集提供小时、日、月及年尺度下的平均、最低与最高空气温度。

数据集还提供日、月、年尺度下的特征时段与特征日统计，例如以协调世界时（UTC）00:00至24:00为统计时段的夏日（日最高温>25℃）、酷热日（日最高温>30℃）、荒漠日（日最高温>35℃）、热带夜（日最低温>20℃）、霜日（日最低温<0℃）及冰日（日最高温<0℃）。

数据集提供缺测填补数据的详细说明。

注意：所有时间均采用协调世界时（UTC），而非当地时间。

如需获取更多详细信息，请查阅`FRCHEM_2024_AirTemperature_MetaData.txt`文件。