Limnological data from nearly 400 lakes across the Americas and New Zealand with a focus on vertical profiles of temperature, UV radiation, and optical properties

Two and a half decades of limnological data have been collected from nearly 400 lakes, encompassing a wide range of systems and a broad range of geography. This data set comprises one of the largest and most complete sets of measurements of underwater ultraviolet (UV) transparency available in the world. The data include a suite of 36 variables, with a focus on the optical characteristics. Lakes range from pristine natural lakes to manmade reservoirs. The systems represented in this data set are largely located in North America, from the northeastern United States to Alaska, and alpine and subalpine lakes in the Rocky Mountains of the United States and Canada. Lakes included range from iconic Lake Tahoe, and Castle Lake in northern California, to lakes in the South American Patagonian region, as well as New Zealand. Data were most often collected during the summer, and in some lakes span multiple years (with year-round data since 2006 in Lake Tahoe). The data here are contained in three files, including LakeData.csv, SiteInformation.csv, and Methods.csv. The main data are in LakeData.csv. SiteInformation.csv and Methods.csv support the main data file with descriptions of the sampling sites and methods by which samples were processed, respectively. This data set complements the site-intensive limnological data that we published in EDI on 30+ years of data from 3 lakes in the Poconos Mountains region of Pennsylvania, USA. This complementary data set can be accessed at https://portal.edirepository.org/nis/mapbrowse?scope=edi&identifier=186

本数据集收录了从近400个湖泊中采集的长达二十五年的湖沼学（limnology）观测数据，涵盖多样的湖泊生态系统类型与广阔的地理分布范围。本数据集是全球范围内规模最大、收录最完整的水下紫外线（UV）透明度实测数据集之一。数据集包含共计36项观测变量，核心聚焦于湖泊的光学特性。研究涉及的湖泊涵盖从原始自然湖泊到人工水库的各类水体。本数据集的采样点主要分布于北美地区：从美国东北部延伸至阿拉斯加，同时涵盖美国与加拿大落基山脉区域的高山及亚高山湖泊。入选的湖泊既包括知名的太浩湖（Lake Tahoe）与加利福尼亚州北部的卡斯尔湖（Castle Lake），也涵盖南美巴塔哥尼亚地区以及新西兰的湖泊。数据采集多集中于夏季，部分湖泊的采样时长跨越多年（其中太浩湖自2006年起拥有全年连续观测数据）。本数据集包含三个数据文件：LakeData.csv、SiteInformation.csv与Methods.csv。核心数据存储于LakeData.csv中；SiteInformation.csv与Methods.csv分别提供采样点位说明与样品处理方法的补充信息，以辅助主数据的解读。本数据集与此前团队发表于EDI平台的高密度点位湖沼学数据形成互补：后者针对美国宾夕法尼亚州波科诺山区的3个湖泊，积累了三十余年的观测数据。该互补数据集可通过以下链接获取：https://portal.edirepository.org/nis/mapbrowse?scope=edi&identifier=186