Comparative evaluation of four actual evapotranspiration models over different ecosystems and climate zones in China
文献类型：期刊论文
| 作者 | Yuan, Mengjia3,4; Gan, Guojing2; Bu, Jingyi1; Su, Yanxin3,4; Ma, Hongyu3,4; Liu, Xianghe3,4; Gao, Yanchun4 |
| 刊名 | JOURNAL OF WATER AND CLIMATE CHANGE
 |
| 出版日期 | 2024-05-23 |
| 卷号 | N/A |
| 关键词 | evapotranspiration METRIC PML-V2 PT-JPL SGCF |
| DOI | 10.2166/wcc.2024.724 |
| 产权排序 | 1 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | To better understand the discrepancies in evapotranspiration (ET) simulations between ET models, we intercompared four models in China: Priestley-Taylor Jet Propulsion Laboratory (PT-JPL), Penman-Montieth-Leuning Version 2 (PML-V2), Sigmoid Generalized Complementary Function (SGCF), Mapping Evapotranspiration at High Resolution with Internalized Calibration (METRIC). Data from 18 flux sites were used to evaluate the model performance at daytime (when incident shortwave radiation is greater than 20 W/m2) scales. To compare more fairly, we took the intersection of the outputs from four models for the analyses in the main text. All models yielded acceptable results, with PML-V2 or SGCF performing best at most sites. The average coefficient of determination and root mean square error among all sites of LE (latent heat of ET) were 0.72 and 51.71 W/m2 for PT-JPL, 0.80 and 46.65 W/m2 for PML-V2, 0.79 and 41.13 W/m2 for SGCF, 0.70 and 51.09 W/m2 for METRIC. PT-JPL and PML-V2 underestimated ET at most sites, whereas SGCF overestimated, potentially due to uncertainties in the vegetation indices and ET constraint parameters. Compared to measurements, PT-JPL underestimated the proportion of transpiration to evapotranspiration (0.81 versus 0.59), while PML-V2 overestimated (0.81 versus 0.90). Furthermore, all models performed best in the semi-arid zone dominated by grassland sites. |
| WOS关键词 | ENERGY-BALANCE CLOSURE ; EDDY-COVARIANCE ; COMPLEMENTARY PRINCIPLE ; HEAT-FLUX ; EVAPORATION ; CALIBRATION ; VEGETATION ; SOIL |
| WOS研究方向 | Water Resources |
| WOS记录号 | WOS:001229774200001 |
| 出版者 | IWA PUBLISHING |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205359]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Gao, Yanchun |
| 作者单位 | 1.Univ New Hampshire, Earth Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA 2.Chinese Acad Sci, Key Lab Watershed Geog Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Mengjia,Gan, Guojing,Bu, Jingyi,et al. Comparative evaluation of four actual evapotranspiration models over different ecosystems and climate zones in China[J]. JOURNAL OF WATER AND CLIMATE CHANGE,2024,N/A. |
| APA | Yuan, Mengjia.,Gan, Guojing.,Bu, Jingyi.,Su, Yanxin.,Ma, Hongyu.,...&Gao, Yanchun.(2024).Comparative evaluation of four actual evapotranspiration models over different ecosystems and climate zones in China.JOURNAL OF WATER AND CLIMATE CHANGE,N/A. |
| MLA | Yuan, Mengjia,et al."Comparative evaluation of four actual evapotranspiration models over different ecosystems and climate zones in China".JOURNAL OF WATER AND CLIMATE CHANGE N/A(2024). |
入库方式： OAI收割
来源：地理科学与资源研究所
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