【摘要】 运用3种不同校测工具进行高频次水位校测实验,研究校测相对误差的变化特征、校测工具的优缺点及现行水位校测规定存在的问题。结果表明:不同工具校测到水位的相对误差均稳定可靠,测钟校测水位容易影响同井孔的水温观测;相对误差变动与水位仪探头本身老化和校测工具有关,也可能源于探头埋深调整误差或错误;现行的"按是否有人值守来划分水位校测时间频次的规定"缺乏科学性,除更换水位仪探头、调整探头埋深、落实水位异常时需校测水位,按季度校测即可满足数据可靠性的要求。鉴于部分井孔水温易受同井孔水位校测的影响,若某井孔水位仪的零漂稳定,水位日动态、月动态清晰且符合正常的变化特征,建议平时可不做水位校测。更多还原

【Abstract】 The experiment of high frequency water level measurement is conducted by 3different measuring tools to study variation characteristics of relative error of measurement,advantages and disadvantages of measurement tools and the existing problems of the current water level measurementregulation.Three conclusionsare drawn as follows:Although the water level value measured by clock is easy to influence the water temperature of the same well,the relative error of different tools to measure the water level is stable and reliable.The variation of relative error is related to the aging of the water level meter probe and the measuring tool,but it is more likely to be due to the error or mistake of the depth of the probe.The current provisionthat the measurement time frequency of water level is dividedaccording to whether someone is on dutyis unscientific.Quarterly measurement can meet the requirements of data reliabilityin addition to the replacement of the water level probe,adjustment of the depth of the probe,the implementation of water level anomalies.If the zero drift of water level meter is stable,the daily and monthly dynamics of water level is clear and in accordance with normal variation,it is suggested that it is not need to do water level measurementordinarily.更多还原