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研究团队已针对近400个湖泊收集了长达25年的湖沼学（limnology）数据，涵盖多样的湖泊类型与广泛的地理分布区间。本数据集是全球范围内规模最大、完整性最高的水下紫外（ultraviolet, UV）透明度实测数据集之一。数据集共计包含36项观测变量，核心聚焦于湖泊的光学特性。研究覆盖的水体类型从原始自然湖泊延伸至人工水库。本数据集收录的湖泊主要分布于北美区域，北起阿拉斯加、南至美国东北部，同时涵盖美国与加拿大落基山脉的高山及亚高山湖泊。入选的湖泊包括标志性的太浩湖（Lake Tahoe）与加利福尼亚州北部的卡斯尔湖（Castle Lake），同时涵盖南美洲巴塔哥尼亚地区以及新西兰的湖泊。数据采集时段多集中于夏季，部分湖泊的监测序列跨越多个年份，其中太浩湖自2006年起具备全年连续观测数据。本次发布的数据包含三个文件：LakeData.csv、SiteInformation.csv与Methods.csv。核心实测数据存储于LakeData.csv中，SiteInformation.csv与Methods.csv分别提供采样点位详情与样品处理流程说明，以辅助主数据集的解读与使用。本数据集可与团队此前在EDI平台发布的点位密集型湖沼学数据形成互补，后者基于美国宾夕法尼亚州波科诺山区3个湖泊超过30年的监测数据。该配套数据集的访问链接为：https://portal.edirepository.org/nis/mapbrowse?scope=edi&identifier=186