Remote Sensing of Suspended Particulate Matter in Himalayan Lakes A Case Study of Alpine Lakes in the Mount Everest Region
文献类型：SCI/SSCI论文
| 作者 | Giardino C. ; Oggioni A. ; Bresciani M. ; Yan H. M. |
| 发表日期 | 2010 |
| 关键词 | Himalayan lakes water color suspended solids glacier-lake interactions remote sensing ALOS AVNIR-2 Nepal sagarmatha national-park outburst floods water-quality historical maps glacial lakes nepal china model chlorophyll variability |
| 英文摘要 | This study presents satellite data and in situ measurements to estimate the concentration of suspended solids in high-altitude and remote lakes of the Himalayas. Suspended particulate matter (SPM) concentrations measured in 13 lakes to the south of Mount Everest (Nepal) in October 2008 and reflectance values of the Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) onboard ALOS, acquired a few days after the fieldwork activities concluded, were combined to build a relationship (R(2) = 0.921) for mapping SPM concentrations in lakes of the Mount Everest region. The satellite-derived SPM concentrations were compared with in situ data (R(2) = 0.924) collected in the same period in 4 additional lakes, located to the north of Mount Everest (Tibet, China). The 13 water samples collected in lakes in Nepal were also used to investigate the absorption coefficients of particles a(p)(lambda) and colored, dissolved organic matter a(CDOM)(lambda), with the aim of parameterizing a bio-optical model. An accurate model (R(2) = 0.965) to estimate SPM concentrations from a(p)(lambda) was found and could be adopted in the future for retrieving suspended solids from satellite imagery independently of ground measurements. In such a remote area, remote sensing was demonstrated to be a suitable tool to characterize the state of lakes, whose loads of suspended solids might be assumed to be direct and quick-responding indicators of deglaciation processes and glacier-lake interactions. As a macrodescriptor of water quality, the assessment of SPM in glacial lakes of the Himalayas might also be of interest for resource use in the downstream region. |
| 出处 | Mountain Research and Development |
| 卷 | 30 |
| 期 | 2 |
| 页 | 157-168 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0276-4741 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23935]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Giardino C.,Oggioni A.,Bresciani M.,et al. Remote Sensing of Suspended Particulate Matter in Himalayan Lakes A Case Study of Alpine Lakes in the Mount Everest Region. 2010. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。