Water isotope data for Dead Run, Baltimore County, MD, USA

This resource includes water isotope data from Dead Run, Maryland as well as precipitation data collected in Oella, MD. Stream grab samples are collected weekly; precipitation samples are collected for every precipitation event. Samples are analyzed for d18O and d2H on a Picarro L 2120-i water isotope analyzer at UMBC. Data are collected for the purpose of (1) cross-site comparison with other sites in the Urban CZ cluster; (2) determination of the local meteoric water line; and (3) calculation of mean watershed transit times. Stream sampling sites are co-located with USGS stream gaging stations 01589317 (DR1), 01589316 (DR2), 01589320 (DR3), 01589315 (DR4), 01589312 (DR5), and 01589330 (DRKR). This data set is part of the Urban Critical Zone Cluster in the NSF Critical Zone Collaborative Network.

本资源囊括了马里兰州德鲁恩地区的水同位素数据以及奥埃拉地区所收集的降水数据。河流采样样本每周进行一次采集；降水样本则针对每一次降水事件进行收集。样本在UMBC的Picarro L 2120-i水同位素分析仪上进行分析，以测定d18O和d2H值。数据收集旨在（1）与城市关键带集群内其他站点进行跨站比较；（2）确定当地的大气降水线；（3）计算平均流域传输时间。河流采样点与USGS河流测量站01589317（DR1）、01589316（DR2）、01589320（DR3）、01589315（DR4）、01589312（DR5）以及01589330（DRKR）相一致。此数据集属于美国国家科学基金会关键带协作网络中的城市关键带集群。