A preliminary view of the CYGNSS soil moisture-vegetation activity linkage
文献类型：期刊论文
| 作者 | Yang, Ting2; Cong, Nan3 |
| 刊名 | FRONTIERS IN FORESTS AND GLOBAL CHANGE
 |
| 出版日期 | 2023-11-30 |
| 卷号 | 6页码:1320432 |
| 关键词 | spaceborne GNSS-R CYGNSS soil moisture NDVI spring phenology the start of the growing season (SOS) |
| DOI | 10.3389/ffgc.2023.1320432 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | IntroductionSoil moisture (SM) is crucial for regulating vegetation productivity and sustaining plant growth. Understanding the linkage between SM and vegetation activity is paramount in eco-hydrology modeling and meteorological applications. CYGNSS, one of the most commonly spaceborne GNSS-R missions with publicly available data, has the advantage of retrieving SM with high accuracy and high temporal resolution.MethodsThis paper describes the linkage between the CYGNSS SM and vegetation activity. The CYGNSS SM from 2019.01 to 2022.12 with system error and land surface calibration is first retrieved. The linkages between the CYGNSS SM and two key vegetation activity indexes, i.e., NDVI and the start of the growing season (SOS), are then investigated.ResultsThe findings and conclusions mainly include: (1) The CYGNSS SM with system error and land surface error calibration shows a good correlation with the SMAP SM, i.e., R = 0.693 vs. ubRMSE = 0.054 m3m-3. Long time-series CYGNSS SM can be useful data for large-scale terrestrial ecosystems and global change studies. (2) The NDVI shows a negative correlation with SM in most pan-tropical areas, whereas a positive correlation with SM in Africa. The response of NDVI to SM is more significant in shrublands and grasslands. (3) The link between the CYGNSS SM and SOS displays strong annual variations, and the SM has generally experienced a significant negative effect on SOS. SM advances the vegetation green-up in arid and semi-arid areas. |
| WOS研究方向 | Environmental Sciences & Ecology ; Forestry |
| WOS记录号 | WOS:001124161100001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200985]  |
| 专题 | 黄河三角洲现代农业工程实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, CAS Engn Lab Yellow River Delta Modern Agr, Beijing, Peoples R China 3.Shandong Dongying Inst Geog Sci, Dongying, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Ting,Cong, Nan. A preliminary view of the CYGNSS soil moisture-vegetation activity linkage[J]. FRONTIERS IN FORESTS AND GLOBAL CHANGE,2023,6:1320432. |
| APA | Yang, Ting,&Cong, Nan.(2023).A preliminary view of the CYGNSS soil moisture-vegetation activity linkage.FRONTIERS IN FORESTS AND GLOBAL CHANGE,6,1320432. |
| MLA | Yang, Ting,et al."A preliminary view of the CYGNSS soil moisture-vegetation activity linkage".FRONTIERS IN FORESTS AND GLOBAL CHANGE 6(2023):1320432. |
入库方式： OAI收割
来源：地理科学与资源研究所
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