Moray Sinus is an estuary located at the northern end of Titan's Kraken Mare. The Cassini RADAR altimeter acquired three segments over this mare during the T104 flyby of Titan, on August 21, 2014. Herein, we present a detailed analysis of the received echoes. Some of these waveforms exhibit a reflection from the seafloor, from up to m of depth (1σ error). Monte Carlo simulations have been performed in order to assess the most probable values and estimation errors for the seafloor depth. Insights from this study, featuring the synergic use of the synthetic aperture radar images coupled to the altimetry and passive radiometry datasets, have been used to constrain the dielectric properties (i.e., absorptivity of the liquid) and roughness of this region of Kraken Mare. The resulting Ku‐band specific attenuation of the liquid is dB/μs, corresponding to a loss tangent of , which is very similar to the loss tangent estimated at Ligeia Mare. The data in hand do not permit us to discern the most likely explanation for the lack of a seafloor reflection from the main body of Kraken Mare: either a very deep sea or a more absorbing liquid composition. However, if the main body of Kraken Mare is characterized by an absorption similar to Moray Sinus, then based on models of the response to altimetry mode observations we can conclude that it exceeds 100 m of depth, which is also compatible with radiometry observations.

中文翻译：

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泰坦的克拉肯母马海底窦的浴场

海鳗窦（Moray Sinus）是位于泰坦海怪海角北端的河口。2014年8月21^日，在泰坦飞越T104期间，卡西尼雷达高度计在这匹母马上捕获了三个航段。在此，我们对收到的回波进行详细分析。一些这些波形的表现出反射从海底，从高达85 _-81 ⁺²⁸m的深度（1σ误差）。为了评估海底深度的最可能值和估计误差，已进行了蒙特卡洛模拟。这项研究的见解以协同使用合成孔径雷达图像与测高和无源辐射数据集为特色，已被用来约束Kraken Mare区域的介电特性（即液体的吸收率）和粗糙度。液体产生的Ku波段特定衰减为17 _‐3 ⁺³ dB /μs，对应于4.6 _{‐0.9 +} ^0.9 ×10 ^‐5的损耗角正切，这与Ligeia Mare估计的损耗正切非常相似。现有的数据不能使我们辨别最有可能的解释，即海妖母海体缺乏海底反射：海底很深或吸收性更强的液体成分。但是，如果Kraken Mare的主体具有类似于Moray Sinus的吸收特征，则基于对测高模式观测值的响应模型，我们可以得出结论，它的深度超过100米，这也与辐射观测值兼容。