Wind measurements from Automatic Weather Station (AWS) at Freiburg – Chemiehochhaus (FRCHEM) from 2014-01-01 to 2014-12-31 [L2]

Quality controlled and gap-filled continuous wind speed data from the urban rooftop weather station at Freiburg-Chemiehochhaus (FRCHEM, 7.8486ºE, 48.0011ºN, 323.5 m) measured using a cup anemoemeter (Lambrecht 00.14576.250 004) operated on a mast 10 m above roof level. Quality controlled wind speed data are available and aggregated at 10min, 30min, hourly, daily, monthly and yearly resolution for the year 2014. Wind speed is provided in m/s as average and maximum (gust maximum, measured every 3 sec) over the period shown, respectively. The minimum wind speed provided / measured is 0.4826 m/s as (threshold value of the cup anemometer). Hence a measurement of 0.4826 can be any value between 0 and 0.4826 m/s. Wind speed classes are reported as number of hours with average and maximum wind within the Beaufort classes as follows: Beaufort 0 and 1 (Calm and light air): 0 — 1.6 m/s, Beaufort 1 (Light breeze): 1.6 — 3.4 m/s, Beaufort 2 (Gentle breeze): 3.4 — 5.5 m/s, Beaufort 4 (Moderate breeze): 5.5 — 8 m/s, Beaufort 5 (Fresh breeze): 8 — 10.8 m/s, Beaufort 6 (Strong breeze): 10.8 — 13.9 m/s, Beaufort 7 (Moderate gale): 13.9 — 17.2 m/s, Beaufort 8 (Gale): 17.2 — 20.8 m/s, Beaufort 9 (Strong/severe gale): 20.8 — 24.5 m/s, Beaufort 10 (Storm): 24.5 — 28.5 m/s, Beaufort 11 and higher: 28.5 — 50 m/s. There is no reliable wind direction data avaialble for this year. Detailed information on gap-filled data is provided. Note: All times are provided in UTC, not local time. For more details read `FRCHEM_2014_WindSpeed_MetaData.txt`本数据集为弗赖堡化工大厦（Freiburg-Chemiehochhaus，简称FRCHEM，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间隙填补的连续风速数据。数据由安装于屋顶上方10米高测风杆上的杯式风速仪（cup anemometer，型号：Lambrecht 00.14576.250 004）采集得到。 2014年的经质量控制风速数据已按10分钟、30分钟、小时、日、月、年的时间分辨率进行聚合并提供。 风速以米每秒（m/s）为单位，分别提供统计时段内的平均风速与最大风速（阵风最大值，每3秒测量一次）。本次提供/测量的最小风速为0.4826 m/s，该值为该杯式风速仪的阈值下限。因此，当测量值为0.4826 m/s时，其实际风速介于0至0.4826 m/s之间。 风速等级按蒲福风级（Beaufort classes）下平均风速与最大风速对应的小时数进行统计，具体分级如下：蒲福0级与1级（无风与轻风）：0 — 1.6 m/s，蒲福1级（软风）：1.6 — 3.4 m/s，蒲福2级（轻风）：3.4 — 5.5 m/s，蒲福4级（和风）：5.5 — 8 m/s，蒲福5级（清风）：8 — 10.8 m/s，蒲福6级（强风）：10.8 — 13.9 m/s，蒲福7级（疾风）：13.9 — 17.2 m/s，蒲福8级（大风）：17.2 — 20.8 m/s，蒲福9级（烈风/强暴风）：20.8 — 24.5 m/s，蒲福10级（暴风）：24.5 — 28.5 m/s，蒲福11级及以上：28.5 — 50 m/s。 本年度无可靠的风向数据可供提供。 关于间隙填补数据的详细信息已一并提供。 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，请查阅`FRCHEM_2014_WindSpeed_MetaData.txt`文件。