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North Temperate Lakes LTER: Light Extinction - Trout Lake Area 1981 - current
收藏Mendeley Data2024-01-31 更新2024-06-27 收录
下载链接：
https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-ntl.259.15
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资源简介：
A light (PAR) extinction coefficient is calculated for the water column for the seven northern study lakes (Allequash, Big Muskellunge, Crystal, Sparkling, and Trout lakes, unnamed lakes 27-02 [Crystal Bog] and 12-15 [Trout Bog]). The fraction of surface light is computed at 0.25-m to 1-m depth intervals depending on the lake. The light (PAR) extinction coefficient is calculated by regressing ln(fraction of light(z)) on depth z. Sampling Frequency: fortnightly during ice-free season - every 6 weeks during ice-covered season Number of sites: 7
本数据集针对7个北部研究湖泊（包括Allequash湖、Big Muskellunge湖、Crystal湖、Sparkling湖、Trout湖，以及未命名湖泊27-02[Crystal Bog]与12-15[Trout Bog]）的水柱，计算了光合有效辐射（Photosynthetically Active Radiation, PAR）消光系数。依据各湖泊的实际情况，在0.25米至1米的深度间隔内测算表层光照占比。该PAR消光系数通过将光照占比的自然对数ln(光照占比(z))对深度z进行回归分析计算得到。采样频率：无冰期每两周一次，冰封期每6周一次。采样位点总数为7个。
创建时间：
2024-01-31
