Three decades of limnological data from lakes in the Pocono Mountains region, Pennsylvania USA, 1988-2021

Three decades of limnological data have been collected from Lakes Lacawac, Giles, and Waynewood, located in the Pocono Mountains region of Pennsylvania, USA as a part of this ongoing data set. Giles is a clear-water, low dissolved organic matter oligotrophic lake in a largely protected watershed, Lacawac has higher dissolved organic matter concentrations and is a dystrophic brown-water system in a highly protected watershed within the Lacawac Sanctuary and Biological Field Station, and Waynewood is a more productive, eutrophic lake, with a larger watershed that is mixed agricultural, forested, and residential use. One unique aspect of these data is that they comprise one of the largest and most complete data sets with measurements of underwater UV transparency available in the world. The data include a suite of 48 variables including biological (zooplankton), physical, optical, and chemical characteristics of the lakes, with a focus on the optical characteristics. Data were collected on many of these variables at least once annually during the summer, often with much more frequent samples during the ice-free season, and for several years in the early 1990s through the winter months. The following four files contain this data set, with the main data contained in PoconosLakeData.csv and PoconosZoopData.csv. SiteInformation.csv and Methods.csv support the main data files, with descriptions of the sampling sites and methods by which samples were processed, respectively. Also included are summary reports that provide an overview and characterize the three core PCLP (Pocono Comparative Lakes Program) lakes from 1989-1993. The user is referred in particular to the 1995 summary report on all three lakes as a useful introduction to the three lakes. These files can be accessed through links provided under Journal Citations. These reports provide an overview of the lakes and detailed methodology. The 1995 summary report "Limnology of Lakes Lacawac, Giles, and Waynewood 1989-93: An Introduction to the Core Lakes of the Pocono Comparative Lakes Program" provides a comprehensive overview of lake and watershed characteristics, as well as physical, chemical, and biological (fish, zooplankton, and phytoplankton) conditions. Detailed sampling and analytical methodology, and an overview of fish populations in the three lakes are also available, as well as annual reports for each lake.

本持续更新的数据集收录了取自美国宾夕法尼亚州波科诺山区的拉科瓦克湖（Lacawac）、贾尔斯湖（Giles）和韦恩伍德湖（Waynewood）的三十年湖沼学（limnology）观测数据。其中，贾尔斯湖为清水型、低溶解有机物的贫营养湖，流域整体受严格保护；拉科瓦克湖溶解有机物浓度更高，属于腐殖质褐水系统，其流域位于拉科瓦克保护区与生物野外站范围内，受高度保护；韦恩伍德湖则为生产力更高的富营养湖，流域面积更大，土地利用类型兼具农业、林地与住宅开发。该数据集的独特之处在于，它是全球范围内规模最大、完整性最强的水下紫外透明度实测数据集之一。

数据集包含48项变量，涵盖湖泊的生物学（浮游动物）、物理学、光学与化学特征，其中以光学特征为核心观测重点。多数变量的观测频率至少为夏季每年一次，在无冰季节采样频率通常更高；1990年代早期的数年中，观测工作甚至延伸至冬季月份。

本数据集包含4个相关文件，核心数据存储于PoconosLakeData.csv与PoconosZoopData.csv中；SiteInformation.csv与Methods.csv分别为辅助文件，前者提供采样点位说明，后者详述样品处理方法。数据集还包含1989年至1993年间针对三座核心PCLP（波科诺对比湖项目，Pocono Comparative Lakes Program）湖泊的概况与特征总结报告。特别推荐用户参考1995年发布的三座湖泊综合总结报告，以此作为了解这三座湖泊的入门资料。

上述文件可通过期刊引用项下提供的链接获取，这些报告详细概述了三座湖泊的基本情况与采样分析方法。1995年的总结报告"Limnology of Lakes Lacawac, Giles, and Waynewood 1989-93: An Introduction to the Core Lakes of the Pocono Comparative Lakes Program"全面概述了三座湖泊及其流域的特征，以及物理、化学与生物学（鱼类、浮游动物与浮游植物）状况；报告同时详述了采样与分析方法，并对三座湖泊的鱼类种群进行了概述，此外还包含各湖泊的年度观测报告。