Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085134 |
A CYGNSS-Based Algorithm for the Detection of Inland Waterbodies | |
Gerlein-Safdi, Cynthia; Ruf, Christopher S. | |
2019-11-14 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:21页码:12065-12072 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Cyclone Global Navigation Satellite System (CYGNSS) is a new constellation of eight low Earth orbiting spacecrafts that receive both direct and reflected signals from GPS satellites. Coherent reflection of the GPS signal from standing water over land results in a high surface reflectivity signal in the CYGNSS data. An image processing algorithm is presented, which leverages the surface reflectivity signal to produce a watermask of inland waterbodies at 0.01 degrees x 0.01 degrees spatial resolution. The watermask is compared to hand-drawn maps of inland waterbodies, as well as to the MODIS watermask product. We find that the CYGNSS watermask provides accurate, time-varying maps that are able to resolve changes in lake and river position and extent. With CYGNSS' short return time, watermasks can be generated using as little as half a month of data to produce near-real-time maps of flooding events. |
英文关键词 | GNSS-R lake remote sensing rivers water resources watermask |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496469300001 |
WOS关键词 | SOIL-MOISTURE ; WATER |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225018 |
专题 | 环境与发展全球科技态势 |
作者单位 | Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Gerlein-Safdi, Cynthia,Ruf, Christopher S.. A CYGNSS-Based Algorithm for the Detection of Inland Waterbodies[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(21):12065-12072. |
APA | Gerlein-Safdi, Cynthia,&Ruf, Christopher S..(2019).A CYGNSS-Based Algorithm for the Detection of Inland Waterbodies.GEOPHYSICAL RESEARCH LETTERS,46(21),12065-12072. |
MLA | Gerlein-Safdi, Cynthia,et al."A CYGNSS-Based Algorithm for the Detection of Inland Waterbodies".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):12065-12072. |
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