Approaches to assessing the daily average ground surface soil heat flux on a regional scale over the Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Yang, Cheng3,4,5,6; Wu, Tonghua6; Hu, Guojie6; Zhu, Xiaofan6; Yao, Jimin6; Li, Ren6; Zhao, Lin2,6; Zhang, Yinghui1 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 336页码:13 |
| 关键词 | Qinghai-Tibet Plateau Daily average ground surface soil heat flux Remote sensing-based model Combination method Sine method |
| ISSN号 | 0168-1923 |
| DOI | 10.1016/j.agrformet.2023.109494 |
| 通讯作者 | Wu, Tonghua(thuawu@lzb.ac.cn) |
| 英文摘要 | The daily average ground surface soil heat flux (G0_daily) has been widely applied in land surface models. The accuracy of modeling G0_daily greatly impacts the estimation of the evapotranspiration and heat and moisture exchanges between the atmosphere and ground surface in frozen ground regions. We propose two methods for estimating G0_daily over the Qinghai-Tibet Plateau (QTP): the combination method (CM) and the sine method (SM). The instantaneous surface soil heat flux (G0_ins) is estimated at multiple times per day using the CM, and then, G0_daily is obtained. The SM simulates G0_daily by estimating G0_ins during the satellite transit based on the diurnal variation in the sinusoidal curves of G0_ins under clear-sky conditions. For G0_ins, the root mean square error (RMSE) and coefficient of determination (R2) of the CM are more than 10 W/m2 lower and 0.12 higher than those of the surface energy balance system (SEBS), respectively. For G0_daily, at the four sites (TGLMS, Naqu, Biru, and Nierong), the RMSE and the correlation coefficient (R) values of the CM are better than those of the SM by -0.86 W/m2, 9.04 W/m2, 4.33 W/m2, and 2.55 W/m2 and 0.19, 0.12, 0.10, and 0.08, respectively. The CM is applicable under all weather conditions and multi-period and multi-parameter observations throughout a day. Due to the principle of the SM, it can only simulate G0_daily when the satellite observes at least once each in the daytime and nighttime under clear-sky conditions. The SM overcomes the shortcomings of the CM, i.e., the requirements of complex input parameters and a large data volume. The advantage of the high spatial resolution of polar-orbiting satellite remotely sensed data (such as Moderate Resolution Imaging Spectroradiometer (MODIS) data) is given full play by the SM. |
| WOS关键词 | NET-RADIATION ; ENERGY BUDGET ; CANOPY ; TEMPERATURE ; EVAPORATION ; VEGETATION ; MODEL |
| 资助项目 | National Natural Science Foundation of China[41771076] ; National Natural Science Foundation of China[42001071] ; National Natural Science Foundation of China[42071093] ; Youth's project of scientific fund of institution higher education of Hebei Province[QN2021093] ; Science Foundation of Hebei Normal University[L2021B20] |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000998449200001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Youth's project of scientific fund of institution higher education of Hebei Province ; Science Foundation of Hebei Normal University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/197740]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wu, Tonghua |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing 210044, Peoples R China 3.Hebei Normal Univ, Sch Geog Sci, Shijiazhuang 050024, Peoples R China 4.Hebei Technol Innovat Ctr Remote Sensing Identific, Shijiazhuang 050024, Peoples R China 5.Hebei Key Lab Environm Change & Ecol Construct, Shijiazhuang 050024, Peoples R China 6.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Cheng,Wu, Tonghua,Hu, Guojie,et al. Approaches to assessing the daily average ground surface soil heat flux on a regional scale over the Qinghai-Tibet Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2023,336:13. |
| APA | Yang, Cheng.,Wu, Tonghua.,Hu, Guojie.,Zhu, Xiaofan.,Yao, Jimin.,...&Zhang, Yinghui.(2023).Approaches to assessing the daily average ground surface soil heat flux on a regional scale over the Qinghai-Tibet Plateau.AGRICULTURAL AND FOREST METEOROLOGY,336,13. |
| MLA | Yang, Cheng,et al."Approaches to assessing the daily average ground surface soil heat flux on a regional scale over the Qinghai-Tibet Plateau".AGRICULTURAL AND FOREST METEOROLOGY 336(2023):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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