This data set is the precipitation observation data of rainfall station in Qiaogou basin from 1986 to 1990. Qiaogou watershed, located in Suide County, Yulin City, Shaanxi Province, belongs to the first tributary of peijiamaogou (the first tributary of Wuding River). Six rainfall stations, Qiaogou No.1, Qiaogou No.2, Qiaogou No.3, Qiaogou No.4, Qiaogou No.5 and Qiaogou No.6 are set up in Qiaogou basin. Dsj2 siphon type rain gauge and SM1 ordinary rain gauge with diameter of 20cm are used for parallel observation. When the self recording rain gauge fails, ordinary rain gauge is used instead. The data include station network layout map, daily precipitation scale, precipitation extract table and maximum precipitation table of each period (1). For the basic information of rainfall stations in Qiaogou basin, please refer to the situation description of Qiaogou basin from 1986 to 1990.
|collect time||1986/01/01 - 1990/12/31|
|collect place||Qiaogou watershed, Suide County, Yulin City, Shanxi Province|
|data size||508.6 kB|
Instrument continuous observation and manual timing observation
Precipitation observation instruments include dsj2 siphon rain gauge and SM1 ordinary rain gauge with diameter of 20cm. Dsj2 self recording rain gauge adopts 24 segment system for flood season observation, SM1 ordinary rain gauge adopts 8:00 and 20:00 two-stage system for annual observation. In case of failure of self recording rain gauge, observation data of ordinary rain gauge are used for supplement. It mainly observes the beginning and ending time of precipitation and statistics of precipitation. When the intermittent time of precipitation is more than 15min, it is observed as two precipitation before and after the interval. When the intermittent time is less than 15min, it is recorded as a precipitation observation. If a precipitation crosses 8:00 and 20:00, it should be measured at 8:00 and 20:00.
The instrument calibration shall be carried out before the start of annual observation of rain gauge. In the process of data entry, there are four levels of manual verification, including tabulation, primary proofreading, rechecking and auditing, so as to ensure the data quality.
|1||126201340005150007||Recurrent projects of the Ministry of water resources|
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