Fluxes project at North Temperate Lakes LTER: Hydrology Scenarios Model Output

A spatially-explicit simulation model of hydrologic flow-paths was developed by Matthew C. Van de Bogert and collaborators for his PhD project, " Aquatic ecosystem carbon cycling: From individual lakes to the landscape." The model is coupled with an in-lake carbon model and simulates hydrologic flow paths in groundwater, wetlands, lakes, uplands, and streams. The goal of this modeling effort was to compare aquatic carbon cycling in two climate scenarios for the North Highlands Lake District (NHLD) of northern Wisconsin: one based on the current climate and the other based on a scenario with warmer winters where lakes and uplands do not freeze, hereinafter referred to as the "no freeze" scenario. In modeling this "no freeze" scenario the same precipitation and temperature data as the current climate model was used, however temperature inputs were artificially floored at 0 degrees Celsius. While not discussed in his dissertation, Van de Bogert considered two other climate scenarios each using the same precipitation and temperature data as the current climate scenario. These scenarios involved running the model after artificially raising and lowering the current temperature data by 10 degrees Celsius. Thus, four scenarios were considered in this modeling effort, the current climate scenario, the "no freeze" scenario, the +10 degrees scenario, and the -10 degrees scenario. These data are the outputs of the model under the different scenarios and include average monthly temperature, average monthly rainfall, average monthly snowfall, total monthly precipitation, daily evapotranspiration, daily surface runoff, daily groundwater recharge, and daily total runoff. Note that the results of how temperature inputs influence aquatic carbon cycling under these different scenarios is not included in this data set, refer to Van de Bogert (2011) for this information.Documentation: Van de Bogert, M.C., 2011. Aquatic ecosystem carbon cycling: From individual lakes to the landscape. ProQuest Dissertations and Theses. The University of Wisconsin - Madison, United States -- Wisconsin, p. 156.

马修·C·范德博格特（Matthew C. Van de Bogert）及其合作者为其博士研究项目《水生生态系统碳循环：从单个湖泊到景观尺度》开发了一款空间显式水文路径模拟模型。该模型耦合了湖内碳循环模型（in-lake carbon model），可模拟地下水、湿地、湖泊、高地与溪流中的水文路径（hydrologic flow-paths）。本次建模工作的目标是，对比威斯康星州北部北高地湖区（North Highlands Lake District, NHLD）两种气候情景（climate scenarios）下的水生碳循环：一种基于当前气候，另一种基于暖冬情景——该情景下湖泊与高地不会冻结，下文简称“无冻结情景”。在构建“无冻结情景”模型时，研究采用了与当前气候模型相同的降水与温度数据，但将温度输入值的下限人为设为0摄氏度。尽管范德博格特在其博士论文中未提及此项工作，但他还另外考虑了两种气候情景，这两种情景均采用与当前气候情景一致的降水与温度数据，仅分别将当前温度数据人为上调、下调10℃后运行模型。因此本次建模工作共考虑了四种气候情景：当前气候情景、“无冻结”情景、升温10℃情景以及降温10℃情景。本数据集包含上述不同情景下模型的输出结果，具体包括月均气温、月均降雨量、月均降雪量、月总降水量、日蒸散发量（evapotranspiration）、日地表径流量（surface runoff）、日地下水补给量（groundwater recharge）以及日总径流量（total runoff）。请注意，本数据集未包含不同情景下温度输入对水生碳循环影响的相关结果，相关信息可参阅Van de Bogert（2011）的研究成果。参考文献：Van de Bogert, M.C., 2011. 水生生态系统碳循环：从单个湖泊到景观尺度. ProQuest学位论文库. 威斯康星大学麦迪逊分校, 美国威斯康星州, 第156页.