Are There Sufficient Landsat Observations for Retrospective and Continuous Monitoring of Land Cover Changes in China?
文献类型：期刊论文
| 作者 | Zhou, Yan4,5; Dong, Jinwei5 ; Liu, Jiyuan5; Metternicht, Graciela2; Shen, Wei4; You, Nanshan5; Zhao, Guosong5; Xiao, Xiangming1,3
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| 刊名 | REMOTE SENSING
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| 出版日期 | 2019-08-01 |
| 卷号 | 11期号:15页码:14 |
| 关键词 | continuous monitoring land cover changes China Landsat data availability Google Earth Engine (GEE) |
| DOI | 10.3390/rs11151808 |
| 通讯作者 | Dong, Jinwei(dongjw@igsnrr.ac.cn) |
| 英文摘要 | Unprecedented human-induced land cover changes happened in China after the Reform and Opening-up in 1978, matching with the era of Landsat satellite series. However, it is still unknown whether Landsat data can effectively support retrospective analysis of land cover changes in China over the past four decades. Here, for the first time, we conduct a systematic investigation on the availability of Landsat data in China, targeting its application for retrospective and continuous monitoring of land cover changes. The latter is significant to assess impact of land cover changes, and consequences of past land policy and management interventions. The total and valid observations (excluding clouds, cloud shadows, and terrain shadows) from Landsat 5/7/8 from 1984 to 2017 were quantified at pixel scale, based on the cloud computing platform Google Earth Engine (GEE). The results show higher intensity of Landsat observation in the northern part of China as compared to the southern part. The study provides an overall picture of Landsat observations suitable for satellite-based annual land cover monitoring over the entire country. We uncover that two sub-regions of China (i.e., Northeast China-Inner Mongolia-Northwest China, and North China Plain) have sufficient valid observations for retrospective analysis of land cover over 30 years (1987-2017) at an annual interval; whereas the Middle-Lower Yangtze Plain (MLYP) and Xinjiang (XJ) have sufficient observations for annual analyses for the periods 1989-2017 and 2004-2017, respectively. Retrospective analysis of land cover is possible only at a two-year time interval in South China (SC) for the years 1988-2017, Xinjiang (XJ) for the period 1992-2003, and the Tibetan Plateau (TP) during 2004-2017. For the latter geographic regions, land cover dynamics can be analyzed only at a three-year interval prior to 2004. Our retrospective analysis suggest that Landsat-based analysis of land cover dynamics at an annual interval for the whole country is not feasible; instead, national monitoring at two- or three-year intervals could be achievable. This study provides a preliminary assessment of data availability, targeting future continuous land cover monitoring in China; and the code is released to the public to facilitate similar data inventory in other regions of the world. |
| WOS关键词 | EARTH OBSERVATION REQUIREMENTS ; CLOUD COVER ; SURFACE REFLECTANCE ; GROWING-SEASON ; SNOW DETECTION ; CLIMATE-CHANGE ; TIME-SERIES ; IMPACTS ; MODIS ; INTEGRATION |
| 资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA19040301] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences (CAS)[QYZDB-SSW-DQC005] ; Thousand Youth Talents Plan |
| WOS研究方向 | Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:000482442800072 |
| 出版者 | MDPI |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences (CAS) ; Thousand Youth Talents Plan |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/69665]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Dong, Jinwei |
| 作者单位 | 1.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA 2.Univ New South Wales, Sch Biol Earth & Environm Sci, Sydney, NSW 2052, Australia 3.Univ Oklahoma, Ctr Spatial Anal, Norman, OK 73019 USA 4.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yan,Dong, Jinwei,Liu, Jiyuan,et al. Are There Sufficient Landsat Observations for Retrospective and Continuous Monitoring of Land Cover Changes in China?[J]. REMOTE SENSING,2019,11(15):14. |
| APA | Zhou, Yan.,Dong, Jinwei.,Liu, Jiyuan.,Metternicht, Graciela.,Shen, Wei.,...&Xiao, Xiangming.(2019).Are There Sufficient Landsat Observations for Retrospective and Continuous Monitoring of Land Cover Changes in China?.REMOTE SENSING,11(15),14. |
| MLA | Zhou, Yan,et al."Are There Sufficient Landsat Observations for Retrospective and Continuous Monitoring of Land Cover Changes in China?".REMOTE SENSING 11.15(2019):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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