Maui Gravity and Soil Gas Surveys

Contains a ground-based gravity survey of South Maui and a series of soil CO2 flux and temperature surveys encompassing Maui and the Big Island. The gravity survey was collected from approximately 284 km2 and consisted of 400 gravity stations with 400 m spacing. Locations were derived with full DGPS. Station and line location, Complete Bouger Anomaly, first vertical derivative and horizontal gradient maps were calculated and produced. The soil CO2 flux and temperature surveys were conducted on the islands of Hawaii and Maui in April and July 2010. Average soil temperatures were measured over 10 cm depth using a hand-held thermocouple. Soil CO2 fluxes were measured using a portable accumulation chamber instrument.

该数据集包含南毛伊岛的地面重力测量数据，以及覆盖毛伊岛和大岛的一系列土壤二氧化碳（CO₂）通量与温度测量数据。重力测量覆盖面积约284平方公里，包含400个重力站，站间距为400米。站点位置通过完整差分全球定位系统（DGPS）获取。研究人员计算并生成了站点与测线位置图、完全布格异常图、一阶垂直导数图及水平梯度图。土壤CO₂通量与温度测量于2010年4月和7月在夏威夷岛与毛伊岛开展。平均土壤温度通过手持热电偶（thermocouple）在10厘米深度处测量得到；土壤CO₂通量则采用便携式累积室仪器进行测量。