Water isotope data for Pennypack Creek, Philadelphia, PA, USA

This resource includes water isotope data from Pennypack Creek at Lower Rhawn St Bridge, Philadelphia, PA (PPRH) and Pennypack Creek at Pine Road, at Philadelphia, PA (PPRI) as well as precipitation data collected in Fort Washington, PA. Stream grab samples are collected biweekly; precipitation samples are collected for every precipitation event. Samples are analyzed for d18O and d2H on a Picarro L2120-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 01467048 (PPRI) and 01467042 (PPPI). This data set is part of the Urban Critical Zone Cluster in the NSF Critical Zone Collaborative Network.

本资源包含来自费城宾夕法尼亚州Lower Rhawn St桥旁的Penndelpack Creek（PPRH）以及费城宾夕法尼亚州Pine Road旁的Penndelpack Creek（PPRI）的水同位素数据，以及收集于Fort Washington，宾夕法尼亚州的降水数据。河流抓取样本每两周采集一次；降水样本则针对每一次降水事件进行采集。样品在UMBC的Picarro L2120-i水同位素分析仪上进行分析，测定d18O和d2H。数据收集旨在（1）与城市CZ集群中的其他站点进行跨站点比较；（2）确定当地大气降水线；（3）计算平均流域传输时间。河流采样点与美国地质调查局（USGS）的河流测站01467048（PPRI）和01467042（PPPI）重合。该数据集是隶属于美国国家科学基金会（NSF）临界带合作网络中的城市临界带集群。