NEON Biorepository Wet Deposition Collection (repackaging of occurrences published by the NEON Biorepository Data Portal)

This collection contains wet deposition samples collected during precipitation events at NEON terrestrial and aquatic sites (NEON sample class: wdp_collection_in.chemSubsampleID). Samples are collected in a climate controlled wet deposition collector located at the tower top of terrestrial sites, and at the meteorologic tower of select aquatic sites. The automated assembly detects precipitation with an optical sensor and opens to collect wet deposition during all rain events. This allows for all types of precipitation to enter the glass collection bottles located within the enclosure. Once precipitation has ceased (as detected by the optical precipitation detector), the retractable lid closes until the next precipitation event is detected. Every two weeks samples are retrieved. A portion of the sample is filtered and sent to an analytical facility for analysis of major ions, pH, and conductivity. The remaining (unused) portion of the sample is not filtered and archived at 4 degrees Celsius for five years. Samples are stored in plastic Nalgene bottles, either PP or HDPE. See related links below for protocols and NEON related data products. Please note that associated datasets include important remarks and notes from the analysis laboratory about the condition of each sample (for example, if debris or contaminants were observed in the sample).

本数据集收录了国家生态观测站网络（National Ecological Observatory Network，NEON）陆地与水生站点在降水事件中采集的湿沉降样本（NEON样本类别：wdp_collection_in.chemSubsampleID）。样本采集于气候受控的湿沉降收集器中，该收集器部署于陆地站点的塔顶，以及部分选定水生站点的气象塔。这套自动化采集装置通过光学传感器检测降水，在所有降雨事件期间开启以收集湿沉降，可使各类降水进入封装于设备内的玻璃收集瓶。当光学降水检测器检测到降水停止后，可伸缩盖板将闭合，直至下一次降水事件被检测到。每两周开展一次样本回收作业。取部分样本进行过滤后，送至分析机构开展主要离子、pH值及电导率的检测。剩余未使用的样本未经过滤，于4摄氏度环境下归档保存五年。样本储存于聚丙烯（PP）或高密度聚乙烯（HDPE）材质的耐洁（Nalgene）塑料瓶中。相关采集协议及NEON关联数据产品请参阅下文的相关链接。请注意，关联数据集包含分析实验室针对各样本状态的重要备注与说明（例如，是否在样本中观察到碎屑或污染物）。