Water quality (specific conductance and chloride concentrations) for watersheds in areas of unconventional oil and gas plays in the USA ,1970-2010.

This data set contains specific conductance and chloride concentration data in HUC-8 watersheds that intersect with areas with unconventional oil and gas plays. The data was originally used in the publication by Bowen et al. (2015. Assessment of surface water chloride and conductivity trends in areas of unconventional oil and gas development - Why existing national data sets cannot tell us what we would like to know. Water Resources Research 51: 704-715. A subset of this data was used by Cade (2017. Quantile regression applications in ecology and the environmental sciences. R. Koenker et al., eds. Handbooks of Modern Statistical Methods: Handbook of Quantile Regression. Chapman & Hall/CRC for example quantile regression analyses. The data were obtained from U. S. Geological Survey, National Water Information System (NWIS).

本数据集涵盖与非常规油气藏分布区重叠的HUC-8水文单元流域内的比电导率（specific conductance）与氯离子浓度（chloride concentration）数据。该数据集最初由Bowen等人于2015年用于其发表于《Water Resources Research》的研究论文《非常规油气开发区域地表水氯离子与电导率变化趋势评估——为何现有国家级数据集无法解答我们的核心关切》，该论文刊载于第51卷，页码范围为704-715页。本数据集的一个子集被Cade（2017）用于示例分位数回归（quantile regression）分析，其相关研究主题为生态学与环境科学领域的分位数回归应用，该内容收录于R. Koenker等主编的《现代统计方法手册：分位数回归手册》（Handbooks of Modern Statistical Methods: Handbook of Quantile Regression），由Chapman & Hall/CRC出版。本数据集源自美国地质调查局（U. S. Geological Survey）的国家水信息系统（National Water Information System, NWIS）。