Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR027040 |
High sensitivity of lake hypoxia to air temperatures, winds and nutrient loading: Insights from a 3D lake model | |
Serghei A. Bocaniov; Kevin G. Lamb; Wentao Liu; Yerubandi R. Rao; Ralph E. H. Smith | |
2020-11-16 | |
发表期刊 | Water Resources Research |
出版年 | 2020 |
英文摘要 | A three‐dimensional hydrodynamic‐ecological model is applied to Lake Erie to predict the response of dissolved oxygen (DO) to independent changes in air temperature, wind speeds and total phosphorus (TP) loading. Warmer temperatures and lower wind speeds increased the size and duration of hypoxic and anoxic regions by lengthening the stratified period. Decreased wind speed increased hypolimnion thickness while decreasing its temperature and DO consumption rate. Decreased TP loading improved DO conditions with a reduction of 75% effectively abolishing hypoxia. Anoxia was more sensitive to air temperature, wind and nutrient changes than was hypoxia. New metrics that capture the spatial and temporal dimensions of low DO conditions were more sensitive than the commonly‐cited maximum areas of hypoxia or anoxia. Over most of the relevant range of forcing factors, the simple and first order effect of a 1 °C temperature change was equivalent to a 10‐14% change in TP loads, while a 1% change in wind speed was equivalent to a 2‐3% change in TP loads. Reduced ice cover in warmer climates will likely increase air temperature effects even further. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/304322 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Serghei A. Bocaniov,Kevin G. Lamb,Wentao Liu,et al. High sensitivity of lake hypoxia to air temperatures, winds and nutrient loading: Insights from a 3D lake model[J]. Water Resources Research,2020. |
APA | Serghei A. Bocaniov,Kevin G. Lamb,Wentao Liu,Yerubandi R. Rao,&Ralph E. H. Smith.(2020).High sensitivity of lake hypoxia to air temperatures, winds and nutrient loading: Insights from a 3D lake model.Water Resources Research. |
MLA | Serghei A. Bocaniov,et al."High sensitivity of lake hypoxia to air temperatures, winds and nutrient loading: Insights from a 3D lake model".Water Resources Research (2020). |
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