The Importance of Heat Storage for Estimating Lake Evaporation on Different Time Scales: Insights From a Large Shallow Subtropical Lake
文献类型：期刊论文
| 作者 | Bai, Peng2; Wang, Yongsheng1 |
| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 59期号:9页码:16 |
| 关键词 | lake evaporation heat storage change eddy covariance evaporation Lake Taihu |
| ISSN号 | 0043-1397 |
| DOI | 10.1029/2023WR035123 |
| 通讯作者 | Bai, Peng(baip@igsnrr.ac.cn) |
| 英文摘要 | The change in heat storage (G(c)) is an essential component of a lake ' s energy balance, and its importance for lake evaporation (E-w) has been widely recognized. However, the effect of G(c) on Ew exhibits diversity across time dimensions. The controls on G(c) and the effects of G(c) on Ew estimates at different time scales remain largely unexplored. To address these gaps, we identified the primary controls on G(c) at an eddy covariance site in a large shallow lake (Lake Taihu) and quantified the role of G(c) in estimating Ew on three (hourly, daily, and monthly) time scales based on two energy balance-based E-w models. Our results indicate that the diurnal variation of G(c) is dominated by net radiation and peaks around noon, while the seasonal variation of G(c) is mainly controlled by air temperature and peaks in spring. In contrast, the daily variation of G(c) is subjective to a confluence of factors-net radiation, wind speed, and relative humidity-displaying more stochasticity than that on the other two time scales. We also found that the importance of G(c) for E-w estimates decreases as the time scale extends. Compared to the two models disregarding G(c), considering the effect of G(c) enhances the average Kling-Gupta efficiency (KGE) values of the two models by 1.33, 0.42, and 0.08 on the three time scales, respectively. Overall, this study highlights the importance of time scales in evaluating the effect of G(c) on E-w estimates. |
| WOS关键词 | ENERGY-BALANCE ; PHYSICAL CONTROLS ; TURBULENT FLUX ; OPEN WATER ; BUDGET ; TEMPERATURE ; RESERVOIR ; MODEL ; SIMULATION ; GRASSLAND |
| 资助项目 | National Key Research and Development Project of China[2021YFC3201204] ; Natural Science Foundation of China[51979263] ; Natural Science Foundation of China[42271033] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001062495500001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Key Research and Development Project of China ; Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/198203]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Bai, Peng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Peng,Wang, Yongsheng. The Importance of Heat Storage for Estimating Lake Evaporation on Different Time Scales: Insights From a Large Shallow Subtropical Lake[J]. WATER RESOURCES RESEARCH,2023,59(9):16. |
| APA | Bai, Peng,&Wang, Yongsheng.(2023).The Importance of Heat Storage for Estimating Lake Evaporation on Different Time Scales: Insights From a Large Shallow Subtropical Lake.WATER RESOURCES RESEARCH,59(9),16. |
| MLA | Bai, Peng,et al."The Importance of Heat Storage for Estimating Lake Evaporation on Different Time Scales: Insights From a Large Shallow Subtropical Lake".WATER RESOURCES RESEARCH 59.9(2023):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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