Data and code from: Impacts of changing winters on lake ecosystems will increase with latitude

Climate warming is especially pronounced in winter and at high latitudes. Warming winters are leading to the loss of lake ice and changing snow cover on lakes. Historically, lake scientists have paid less attention to the ice cover period, leading to data and theory gaps about the role of winter conditions in lake ecosystem function and the consequences of changing winters. Here we use simple models to show that the latitudinal interaction between ice cover duration and light flux seasonality has profound and underappreciated implications for lakes. Our models focus on light and temperature, two key drivers of ecosystem processes. We show that the relative amount of light arriving in lakes during ice cover increases non-linearly with latitude and that the light climate of high-latitude lakes is much more sensitive to changing winter conditions than that of lower-latitude lakes. We also demonstrate that the synchronicity between high light and warm temperatures may decrease with latitude..., , # Data and code from: Impacts of changing winters on lake ecosystems will increase with latitude

Dataset DOI: [10.5061/dryad.98sf7m0wc](10.5061/dryad.98sf7m0wc)

This submission includes data and code accompanying the Ecology Letters manuscript Impacts of Changing Winters on Lake Ecosystems Will Increase with Latitude. The paper examines how ice cover conditions affect light levels in seasonally freezing lakes across large latitudinal gradients. This dataset includes data files that contain: 1) daily incoming light flux + daily ice and snow thickness and opacity data across several latitudes and ice cover duration scenarios; 2) 5-day averaged light flux and surface water temperature data for hypothetical lakes at 45 and 75°N across three ice cover scenario durations and two snow thickness scenarios. The data files are accompanied by R code that generates elements of figures 1, 2, and 3 from the manuscript, and figures S1 and S2 from the supplement. The R code also summarizes and subset...,

气候变暖在冬季及高纬度地区表现尤为显著。冬季变暖正导致湖泊冰盖消融，并改变湖泊积雪覆盖格局。长期以来，湖沼学家对湖泊冰盖期的关注相对不足，导致有关冬季条件在湖泊生态系统功能中的作用，以及冬季环境变化所带来的生态后果的相关数据与理论均存在空白。本研究通过简化模型证实，冰盖持续时长与光通量季节变化之间的纬度交互作用，对湖泊生态系统具有深远且未被充分重视的影响。我们的模型聚焦于光照与温度这两个生态系统过程的关键驱动因子。研究发现，冰盖期入射至湖泊的相对光通量随纬度呈非线性增长，且高纬度湖泊的光照环境对冬季环境变化的敏感性远高于低纬度湖泊。此外，本研究还证实，高光时段与暖温时段的同步性可能随纬度升高而降低……
# 数据与代码来源：《冬季环境变化对湖泊生态系统的影响随纬度升高而加剧》

数据集DOI：10.5061/dryad.98sf7m0wc

本提交内容包含随《Ecology Letters》期刊论文《冬季环境变化对湖泊生态系统的影响随纬度升高而加剧》一同发布的数据与代码。该论文探讨了大纬度梯度范围内，季节性结冰湖泊的冰盖条件如何影响光照水平。本数据集包含以下数据文件：1）覆盖多个纬度与冰盖持续时长情景的每日入射光通量、每日冰盖与积雪厚度及透明度数据；2）针对北纬45°与北纬75°的假想湖泊，在三种冰盖时长情景与两种积雪厚度情景下的5日平均光通量与地表水温度数据。配套的数据文件包含可复现论文中图1、图2、图3以及补充材料中图S1、图S2的R语言代码，该代码还可用于数据汇总与子集提取……