Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3390/rs12040695 |
| Toward the Detection of Permafrost Using Land-Surface Temperature Mapping | |
| Batbaatar, Jigjidsurengiin1; Gillespie, Alan R.1; Sletten, Ronald S.1; Mushkin, Amit1,2; Amit, Rivka2; Trombotto Liaudat, Dario3; Liu, Lu1; Petrie, Gregg1 | |
| 通讯作者 | Batbaatar, Jigjidsurengiin |
| 来源期刊 | REMOTE SENSING
 |
| EISSN | 2072-4292 |
| 出版年 | 2020 |
| 卷号 | 12期号:4 |
| 英文摘要 | Permafrost is degrading under current warming conditions, disrupting infrastructure, releasing carbon from soils, and altering seasonal water availability. Therefore, it is important to quantitatively map the change in the extent and depth of permafrost. We used satellite images of land-surface temperature to recognize and map the zero curtain, i.e., the isothermal period of ground temperature during seasonal freeze and thaw, as a precursor for delineating permafrost boundaries from remotely sensed thermal-infrared data. The phase transition of moisture in the ground allows the zero curtain to occur when near-surface soil moisture thaws or freezes, and also when ice-rich permafrost thaws or freezes. We propose that mapping the zero curtain is a precursor to mapping permafrost at shallow depths. We used ASTER and a MODIS-Aqua daily afternoon land-surface temperature (LST) timeseries to recognize the zero curtain at the 1-km scale as a proof of concept. Our regional mapping of the zero curtain over an area around the 7000 m high volcano Ojos del Salado in Chile suggests that the zero curtain can be mapped over arid regions of the world. It also indicates that surface heterogeneity, snow cover, and cloud cover can hinder the effectiveness of our approach. To be of practical use in many areas, it may be helpful to reduce the topographic and compositional heterogeneity in order to increase the LST accuracy. The necessary finer spatial resolution to reduce these problems is provided by ASTER (90 m). |
| 英文关键词 | land-surface temperature zero curtain effect MODIS ASTER permafrost phase change |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA ; Israel ; Argentina |
| 开放获取类型 | gold, Green Published |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000519564600106 |
| WOS关键词 | OJOS-DEL-SALADO ; ACTIVE LAYER ; VALIDATION ; CLASSIFICATION ; PRECIPITATION ; REFLECTANCE ; REFINEMENTS ; SENSITIVITY ; PROFILES ; REGION |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/315429 |
| 作者单位 | 1.Univ Washington, Dept Earth & Space Sci, Box 351310, Seattle, WA 98195 USA; 2.Geol Survey Israel, 32 Yishayahu Leibovitz St, IL-9692100 Jerusalem, Israel; 3.CCT CONICET Mendoza, Geocryol, Inst Argentino Nivol Glaciol & Ciencias Ambiental, Bajada Cerro S-N,POB 330, RA-5500 Mendoza, Argentina |
| 推荐引用方式 GB/T 7714 | Batbaatar, Jigjidsurengiin,Gillespie, Alan R.,Sletten, Ronald S.,et al. Toward the Detection of Permafrost Using Land-Surface Temperature Mapping[J],2020,12(4). |
| APA | Batbaatar, Jigjidsurengiin.,Gillespie, Alan R..,Sletten, Ronald S..,Mushkin, Amit.,Amit, Rivka.,...&Petrie, Gregg.(2020).Toward the Detection of Permafrost Using Land-Surface Temperature Mapping.REMOTE SENSING,12(4). |
| MLA | Batbaatar, Jigjidsurengiin,et al."Toward the Detection of Permafrost Using Land-Surface Temperature Mapping".REMOTE SENSING 12.4(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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