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, Manitoba, 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 494 ERT surveys collected at 423 different profiles, with repeat surveys being conducted at 15 of those profiles. Raw ERT data is currently available for 292 surveys, while 33 datasets are currently embargoed and will be published within two years and 169 surveys did not include raw data. Data were acquired between 2008-2024. Amalgamated site and borehole metadata are available as supplementary materials. This dataset supports the following publication: Herring, T., Lewkowicz, A., Chiasson, A., Wang, Y., Way, R., Young, J., Froese, D. G., Smith, S. L., Andersen, B., Bellehumeur-Génier, O., Bevington, A. R., Bonnaventure, P. P., Duguay, M., Etzelmuller, B., Gooseff, M., Godsey, S. E., & Miceli, C. M. (2024). The Canadian Permafrost Electrical Resistivity Survey (CPERS) Database: 15 years of permafrost resistivity data. Arctic Science. https://doi.org/10.1139/as-2023-0058. 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）数据集集合。该数据库目前收录了不列颠哥伦比亚省、曼尼托巴省、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州的监测站点数据。每套数据集均可用于解读某一测线沿线冻土层与非冻土层的赋存状态及分布特征，该测线的空间覆盖范围与探测深度取决于测量布设方案。

目前，针对423条不同测线开展的494次ERT测量均已提供元数据，其中15条测线开展了重复测量作业。其中292次测量可获取原始ERT数据，另有33套数据集处于保密限制期，将在两年内正式公开，剩余169次测量未提供原始数据。所有数据采集于2008年至2024年之间。

整合后的站点与钻孔元数据可作为补充材料获取。本数据集支撑以下已发表学术成果：Herring, T., Lewkowicz, A., Chiasson, A., Wang, Y., Way, R., Young, J., Froese, D. G., Smith, S. L., Andersen, B., Bellehumeur-Génier, O., Bevington, A. R., Bonnaventure, P. P., Duguay, M., Etzelmuller, B., Gooseff, M., Godsey, S. E., & Miceli, C. M. (2024). 加拿大永久冻土电阻率测量（CPERS）数据库：15年永久冻土电阻率数据. 《北极科学》. https://doi.org/10.1139/as-2023-0058.

CPERS数据库项目由NSERC永久冻土网络（NSERC PermafrostNet）资助。

数据使用政策：若需使用本数据库中的任意数据集，您必须查阅并遵守CPERS数据使用政策，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/。该站点提供测量点位交互式地图，支持通过多种参数检索所有数据集，并可便捷绘制处理后的数据图表。同时，该站点还提供开源ERT数据处理工具及其他实用资源。