Solute chemistry for streams draining geomorphic features and varying land cover gradients in the East River watershed, Colorado

This dataset contains solute chemistry data and GPS coordinates for surface water samples collected in the East River watershed in the Elk and West Elk Ranges of Colorado from August 3rd through August 11th, 2022. Samples were collected from streams and groundwater seeps as part of a comprehensive analysis within the watershed of how different geomorphic features (such as landslides and rock glaciers) along with variations in land cover (such as the presence of vegetation) affect stream water quality in this Rocky Mountain headwater environment. This dataset includes concentrations of the following in a single csv file: fluoride, chloride, sulfate, nitrate, calcium, potassium, magnesium, sodium, silicon, and total organic carbon (TOC). All concentrations are reported in mg/L. The sulfate data in this version have been updated to account for an earlier ion chromatograph instrument method error whereby sulfate and bromide peaks overlapped in calibration solution samples, biasing calculated sulfate concentrations low by 30-50%. Sulfate data reported herein are from a re-run of the samples performed in December 2024 using a corrected instrument method. All samples were stored under refrigerated conditions and filtered on initial collection.

这个数据集包含2022年8月3日至8月11日在科罗拉多州埃尔克山脉与西埃尔克山脉的东河流域采集的地表水样本的溶质化学（solute chemistry）数据和GPS坐标。样本采集自溪流和地下水渗流点，作为流域内综合分析的一部分，旨在探究该落基山脉源头环境中不同地貌特征（geomorphic features）（如滑坡和岩石冰川）及土地覆盖（land cover）变化（如植被存在与否）对溪流水质的影响。该数据集在单个csv文件中包含以下物质的浓度：氟化物、氯化物、硫酸盐、硝酸盐、钙、钾、镁、钠、硅以及总有机碳（TOC）。所有浓度单位均为毫克每升（mg/L）。本版本中的硫酸盐数据已更新，以修正早期离子色谱仪（ion chromatograph）方法误差——该误差导致校准溶液样本中硫酸盐和溴化物峰重叠，使计算出的硫酸盐浓度偏低30-50%。本文所述的硫酸盐数据来自2024年12月使用修正后的仪器方法重新检测的样本。所有样本在采集初期均经过过滤，并在冷藏条件下储存。