Calibration sheets used with seafloor APG pressure data from trench-perpendicular benchmarks on the Cascadia margin, offshore central Oregon

This data set presents the calibration sheets that accompany the Absolute Pressure Gauge (APG) data from a set of seafloor benchmarks running trench-perpendicular on the Cascadia margin, offshore central Oregon, beginning in 2015. The information in the calibration sheets was used to convert the APG pressure and temperature time series data from counts to physical units. The pressure gauge sensors were made by Paroscientific and the platforms were designed and deployed by the University of Washington School of Oceanography and Applied Physics Lab (APL). The sensors were attached to free-fall deployed concrete benchmarks designed to also serve as a platform for the Scripps Institution of Oceanography’s Absolute Self-Calibrated Pressure Recorder (ASCPR), to obtain campaign-style drift-free reference pressures (not included in this data set). APGs collect absolute pressure (PSIA, dbar) and temperature (degrees C) data at a period of 100 seconds, and were deployed with battery packs and data storage sufficient for 10 years of data collection. The calibration sheets are in PDF format. There is one calibration sheet for each sensor. This data set was generated as part of the project called Constraints on Interseismic Deformation Offshore Oregon from Calibrated Continuous Pressure Records. Funding was provided through NSF award OCE15-58477.

本数据集收录了2015年起在俄勒冈州中部近海卡斯卡迪亚俯冲带布设的一批垂直海沟方向海底基准站的绝对压力计（Absolute Pressure Gauge, APG）配套校准表。校准表内的信息用于将APG采集的压力与温度时序数据从计数值转换为物理单位量值。本次使用的压力计传感器由帕罗斯科学公司（Paroscientific）制造，基准站平台由华盛顿大学海洋学院与应用物理实验室（Applied Physics Lab, APL）设计并布设。这些传感器被安装在自由投放式混凝土基准站上，该基准站同时兼作斯克里普斯海洋研究所绝对自校准压力记录仪（Absolute Self-Calibrated Pressure Recorder, ASCPR）的搭载平台，用于获取巡测式无漂移参考压力数据（该类数据未纳入本数据集）。APG的采样周期为100秒，可采集绝对压力（单位：PSIA、dbar）与温度（单位：摄氏度）数据，其配套电池组与数据存储模块可支持长达10年的数据采集作业。所有校准表均采用PDF格式，每台传感器对应一份校准表。本数据集是“基于校准连续压力记录约束俄勒冈州近海震间形变”（Constraints on Interseismic Deformation Offshore Oregon from Calibrated Continuous Pressure Records）项目的研究成果之一。本项目由美国国家科学基金会（National Science Foundation, NSF）资助，项目编号为OCE15-58477。