Use of SARAL/AltiKa over Mountainous Lakes, Intercomparison with Envisat Mission
Use of SARAL/AltiKa over Mountainous Lakes, Intercomparison with Envisat Mission
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DOI：
10.1080/01490419.2014.1002590
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发表时间：
2015-09-10
期刊：
影响因子：
1.6
通讯作者：
Abarca Del Rio, Rodrigo
中科院分区：
文献类型：
--
作者：
Arsen, Adalbert;Cretaux, Jean-Francois;Abarca Del Rio, Rodrigo
SARAL/AltiKa项目基于单一Ka波段高度计（35.75GHz），这是第一个在如此高频率下工作的海洋高度计。与传统的Ku波段高度计相比，Ka波段提供了减少的雷达覆盖区和可忽略的电离层影响。在本文中，我们提出和评估的好处AltiKa高度计应用于研究在南美洲安第斯山脉的湖泊链。用Envisat/RA-2和SARAL/AltiKa高度计对17个不同大小的湖泊的水位时间序列进行了计算，并与现场观测结果进行了比较。SARAL/AltiKa的测量结果往往与现场测量结果有很好的相关性，与环境卫星使命相比有很大的改进。
The SARAL/AltiKa project is based on a single Ka band altimeter (35.75GHz), which is the first oceanography altimeter to operate at such a high frequency. Ka band offers reduced radar footprint in comparison to traditional Ku band altimeters and negligible ionospheric effects. In this paper we present and evaluate benefits of AltiKa altimeter applied in the study of lakes in Andean chain in South America. Water levels time series obtained with Envisat/RA-2 and SARAL/AltiKa altimeters over 17 lakes of various sizes are calculated and compared to in situ observations. SARAL/AltiKa measurements tend to be extremely well correlated with in situ measurements and offer significant improvements compared to the Envisat mission.