协同使用AirMOSS p波段SAR与SMAP l波段雷达辐射计进行土壤水分反演

2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI:10.1109/ICEAA.2016.7731518

R. Akbar, R. Chen, Alireza Tabatabaeenejad, M. Moghaddam

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引用次数: 1

摘要

本文介绍并讨论了NASA土壤湿度主-被动(SMAP)任务的微波遥感观测结果与NASA机载次冠层和次地表微波观测站(AirMOSS)的微波遥感观测结果的相互比较。1、3和9 km栅格AirMOSS和SMAP SAR观测总体上显示出很强的相关性(R2≥0)。然而，在极端AirMOSS局部入射角下，相关性下降。来自SMAP的l波段亮度温度和来自AirMOSS的p波段背散射几乎不相关(R2≤-0.3)，这表明需要更多的数学综合技术来合并这些数据集来估计地表土壤湿度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Synergistic use of AirMOSS P-band SAR with the SMAP L-band radar-radiometer for soil moisture retrieval

We present and discuss an inter-comparison between microwave remote sensing observations from the NASA Soil Moisture Active-Passive (SMAP) mission and those from the NASA Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS). Earth gridded 1, 3, and 9 km AirMOSS and SMAP SAR observations show, in general, a strong correlation (R2 ≥ 0. 5). However, the correlation degrades at extreme AirMOSS local incidence angles. L-band brightness temperature from SMAP and P-band backscatter from AirMOSS are almost uncorrelated (R2 ≤ -0.3) and indicate the need for more mathematically comprehensive techniques to merge these datasets to estimate surface soil moisture.

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来源期刊

2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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