Repeat microgravity data from the Big Chino Subbasin, 2001-2017, Yavapai County, Arizona

This dataset contains absolute-gravity measurements made using an A-10 absolute gravity meter (Micro-g Lacoste, Inc.) between 2009 and 2017 in the Big Chino Subbasin, Yavapai County, Arizona. Measurements were made about 3 times per year at a total of 33 different stations. Data are presented in tabular form, including relevant parameters used for processing. Data were output by g software (Micro-g Lacoste, Inc.) version 9.12.04.23. A correction for laser-frequency drift was applied, based on regular calibration of the HeNe laser used in the A-10 against an iodine-stabilized laser. A second soil-moisture correction was applied based on satellite soil-moisture measurements, an infiltration model, and the elevation of the terrain surrounding each station. This correction is described in detail in the accompanying interpretive report (Kennedy and others, 2019). Kennedy, J.R., Kahler, L.M., Read, A.L., 2019, Aquifer storage change and storage properties, 2010-2017, in the Big Chino Subbasin, Yavapai County, Arizona: U.S. Geological Survey Scientific Investigations Report 2019-5060, 50 p.

本数据集收录了2009年至2017年间，于美国亚利桑那州亚瓦派县大奇诺盆地采用A-10型绝对重力仪（A-10 absolute gravity meter，Micro-g Lacoste, Inc.公司生产）获取的绝对重力测量数据。研究团队共计在33个独立测点开展观测，观测频率约为每年3次。数据以表格形式呈现，涵盖处理过程中所需的相关参数。数据集由Micro-g Lacoste, Inc.公司的g软件（g software）版本9.12.04.23导出。本次数据处理先后应用了两项校正措施：其一，针对激光频率漂移开展校正，校正依据为A-10型绝对重力仪所用氦氖（HeNe）激光器与碘稳定激光器（iodine-stabilized laser）的定期校准结果；其二，结合卫星土壤湿度测量数据、入渗模型以及各测点周边地形高程，开展土壤湿度校正。该土壤湿度校正方法的详细说明详见配套解释性报告（Kennedy等人，2019）。相关参考文献信息如下：Kennedy, J.R., Kahler, L.M., Read, A.L., 2019, 亚利桑那州亚瓦派县大奇诺盆地2010-2017年含水层储水量变化及储水特性：美国地质调查局科学调查报告2019-5060，共50页。