The Canadian Permafrost Electrical Resistivity Survey Database (CPERS)

The Canadian Permafrost Electrical Resistivity Survey Database (CPERS) is a collection of electrical resistivity tomography (ERT) datasets collected in permafrost environments. The database currently contains sites in British Columbia, Newfoundland and Labrador, Northwest Territories, Quebec, Yukon, and Alaska. Each dataset provides information to interpret the presence and distribution of frozen and unfrozen ground along a profile where spatial extent and depth of investigation depend on the survey set-up. Metadata is currently available for 280 ERT surveys collected at 209 different profiles, with repeat surveys being conducted at 15 of those profiles. Raw ERT data is currently available for 123 surveys, while the remaining 157 datasets are currently embargoed and will be published within two years. Data were acquired between 2008-2022. Amalgamated site and borehole metadata are available as supplementary materials. This dataset will support a publication by Herring et al. (2023). The CPERS database project was funded by NSERC PermafrostNet. DATA POLICY: In order to use any of these datasets you MUST review and adhere to the CPERS data policy, which can be found at https://data.permafrostnet.ca/cpers/data_policy.html. ADDITIONAL RESOURCES: Please visit https://data.permafrostnet.ca/cpers/. This site includes an interactive map of survey locations where all datasets can be queried by several different parameters and processed data can easily be plotted. It also includes open-source ERT data processing tools and other helpful resources.

加拿大永久冻土电阻率测量数据库（Canadian Permafrost Electrical Resistivity Survey Database，CPERS）是一套在永久冻土环境中采集的电阻率层析成像（electrical resistivity tomography，ERT）数据集合集。该数据库目前收录了不列颠哥伦比亚省、纽芬兰与拉布拉多省、西北地区、魁北克省、育空地区以及阿拉斯加的野外测点。每套数据集均可用于解读某一测线上冻土与非冻土的赋存状态与分布特征，而该测线的空间覆盖范围与探测深度则取决于测量布设方案。目前，针对209条不同测线上开展的280次ERT测量，已公开其元数据，其中15条测线实施了重复测量。其中123次测量可获取原始ERT数据，剩余157套数据集处于数据保密期，将在两年内正式发布。所有数据采集于2008年至2022年期间。整合后的测点与钻孔元数据以补充材料形式提供。本数据集将支撑Herring等人2023年的学术成果发表。该CPERS数据库项目由加拿大自然科学与工程研究理事会（Natural Sciences and Engineering Research Council of Canada, NSERC）永久冻土网络（PermafrostNet）资助。数据使用政策：若需使用本数据库中的任何数据集，您必须仔细阅读并遵守CPERS数据使用政策，政策详情可访问https://data.permafrostnet.ca/cpers/data_policy.html。附加资源：请访问https://data.permafrostnet.ca/cpers/。该站点包含测量点位的交互式地图，支持通过多种参数查询所有数据集，且可便捷绘制处理后的数据图表；同时还提供开源的ERT数据处理工具及其他实用资源。