Investigating the impacts of the North Atlantic Oscillation on global vegetation changes by a remotely sensed vegetation index
文献类型：期刊论文
| 作者 | Li, Ainong1 ; Liang, Shunlin2; Wang, Angsheng3; Huang, Chengquan2
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| 刊名 | INTERNATIONAL JOURNAL OF REMOTE SENSING
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| 出版日期 | 2012 |
| 卷号 | 33期号:22页码:7222-7239 |
| 关键词 | Science & Technology |
| ISSN号 | 0143-1161 |
| 通讯作者 | Li, Ainong |
| 英文摘要 | Large-scale climatic variability may have a critical impact on the vegetation growth at both local and global scales. In this study, a long time-series (1982-2006) monthly normalized difference vegetation index (NDVI) has been used as a proxy of vegetation vigour to investigate the global vegetation responses to the North Atlantic Oscillation (NAO, the dominant mode of atmospheric behaviour in the North Atlantic sector). The spatial distribution of the possible connections between NAO and global NDVI has been analysed by a cross-correlation method. The results reveal that the correlated regions between NAO and NDVI are concentrated in the middle-and high-latitude areas of the northern hemisphere around the N60 degrees. belt, the Africa zone around the N15 degrees. belt as well as the vast regions of the southern hemisphere around the S10 degrees-30 degrees. belt. As expected, owing to geographic proximity, NAO-related regions are spread globally forming five geographical west-eastward modes. Simultaneously, some correlated areas persist at one place over several months without geographic transfer. Our findings show that, besides the northern hemisphere, which has been the focus of previous studies, the vegetation responses to NAO are found across the southern hemisphere, with various time lags in different regions, sometimes even over one and a half years. This suggests the existence of a so far unrecognized mechanism that carries the NAO signal far to the southern hemisphere and even persists for multiple years. The lagged vegetation responses to NAO can provide potential for over one-year crop production prediction and agricultural water resource management in the NAO-related regions, as well as useful information for global terrestrial carbon cycle modelling. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Remote Sensing ; Imaging Science & Photographic Technology |
| 研究领域[WOS] | Remote Sensing ; Imaging Science & Photographic Technology |
| 关键词[WOS] | TEMPERATURE VARIABILITY ; SOUTHERN-OSCILLATION ; CLIMATE VARIABILITY ; SATELLITE DATA ; ANNULAR MODE ; DYNAMICS ; PHENOLOGY ; EUROPE ; COVER ; NDVI |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000326812500001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/9917]  |
| 专题 | 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Univ Maryland, Dept Geog, College Pk, MD 20742 USA 3.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ainong,Liang, Shunlin,Wang, Angsheng,et al. Investigating the impacts of the North Atlantic Oscillation on global vegetation changes by a remotely sensed vegetation index[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2012,33(22):7222-7239. |
| APA | Li, Ainong,Liang, Shunlin,Wang, Angsheng,&Huang, Chengquan.(2012).Investigating the impacts of the North Atlantic Oscillation on global vegetation changes by a remotely sensed vegetation index.INTERNATIONAL JOURNAL OF REMOTE SENSING,33(22),7222-7239. |
| MLA | Li, Ainong,et al."Investigating the impacts of the North Atlantic Oscillation on global vegetation changes by a remotely sensed vegetation index".INTERNATIONAL JOURNAL OF REMOTE SENSING 33.22(2012):7222-7239. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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