A DOWNSCALING SCHEME FOR DERIVING SPATIALLY CONTINUOUS FINE-RESOLUTION SOIL MOISTURE DATA BASED ON GAP-FREE LAND SURFACE TEMPERATURE
文献类型：会议论文
| 作者 | Wen Fengping1,3; Zhao Wei1; Wang Wei2 |
| 出版日期 | 2019 |
| 会议日期 | JUL 28-AUG 02, 2019 |
| 会议地点 | Yokohama |
| 关键词 | Soil moisture downscale ATC SMAP MODIS |
| 页码 | 7120-7123 |
| 国家 | JAPAN |
| 英文摘要 | Soil moisture (SM) downscaling has become more and more crucial for assisting the application of the coarse-resolution SM product, such as climate change, sustainable development of agroforestry, efficient management of water resources, and monitoring of natural hazards. The main idea of downscaling methods lies on the help of fine-resolution auxiliary data, such as the widely used, land surface temperature (LST) and normalized difference vegetation index (NDVI). However, in the downscaling process, the ancillary data, especially for the daily LST, is strongly affected by cloud cover, resulting high frequency of blank areas in the final downscaled SM products. By contrast, the impact is usually omitted or paid less attention in current downscaling studies. To obtain the spatially continuous fine-resolution SM product, this study firstly introduced an annual temperature cycle (ATC) model to fill the gaps in daily Moderate Resolution Imaging Spectroradiometer (MODIS) LST product induced by cloud cover. Then the 36-km SM product from Soil Moisture Active Passive (SMAP) satellite mission was downscaled from 36-km to 1-km spatial resolution with the synergistic use of the filled LST and MODIS NDVI to estimate spatially continuous fine-resolution SM product. |
| 产权排序 | 1 |
| 会议录 | 2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019)
 |
| 会议录出版者 | IEEE |
| 会议录出版地 | NEW YORK |
| 语种 | 英语 |
| ISSN号 | 2153-6996 |
| ISBN号 | 978-1-5386-9154-0 |
| WOS记录号 | WOS:000519270606166 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35212]  |
| 专题 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者 | Zhao Wei |
| 作者单位 | 1.Chinese Academy of Sciences, Institute of Mountain Hazards and Environment, Chengdu, 610041, China; 2.Chengdu University of Technology, College of Earth Sciences, Chengdu, 610059, China 3.University of Chinese Academy of Sciences, Beijing, 100049, China; |
| 推荐引用方式 GB/T 7714 | Wen Fengping,Zhao Wei,Wang Wei. A DOWNSCALING SCHEME FOR DERIVING SPATIALLY CONTINUOUS FINE-RESOLUTION SOIL MOISTURE DATA BASED ON GAP-FREE LAND SURFACE TEMPERATURE[C]. 见:. Yokohama. JUL 28-AUG 02, 2019. |
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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