Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41405017 |
| 风云气象卫星遥感数据估算黄河源湿地蒸散发研究 | |
| 刘蓉 | |
| 主持机构 | 中国科学院寒区旱区环境与工程研究所 |
| 开始日期 | 2015 |
| 结束日期 | 2017 |
| 资助经费 | 250000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | In this research, we develop algorithms based on the Surface Energy Balance System(SEBS) algorithm to estimate regional evapotranspiration (ET) by using visible-infrared data which has high spatial resolution and microwave data which has high timeliness from the Chinese FengYun(FY) meteorological satellite which suitable for wetlands over the Yellow River source area. Considering the contribution of the water bodies in wetlands to microwave radiation，the day-by-day open water fraction is retrieved. The ground observations which from Zogie, Yellow River Source Maduo and Elinglake-Nantangchama land surface processes stations are used for validation in different types of wetland, and the errors are also explored. For cloud sky pixels which unavailable for visible and near-infrared data, the surface temperature is retrieved by FY microwave observations, and land surface radiation flux is estimated from meteorological reanalysis data. Then，the continuous time series ET are obtained based on the established ET model which consider the changes of wetland, and the changes of ET response to wetland is also explored. This work can expand the domain of FY satellite, and promote the researches of energy and water exchange over the Yellow River source area. |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346775 |
| 推荐引用方式 GB/T 7714 | 刘蓉.风云气象卫星遥感数据估算黄河源湿地蒸散发研究.2015. |
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