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Scientific goals for the observation of Venus by VIRTIS on ESA/Venus express mission

机译:通过VIRTIS观测ESA /金星快车任务金星的科学目标

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The Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) on board the ESA/Venus Express mission has technical specifications well suited for many science objectives of Venus exploration. VIRTIS will both comprehensively explore a plethora of atmospheric properties and processes and map optical properties of the surface through its three channels, VIRTIS-M-vis (imaging spectrometer in the 0.3-1 μm range), VIRTIS-M-IR (imaging spectrometer in the 1-5 μm range) and VIRTIS-H (aperture high-resolution spectrometer in the 2-5 μm range). The atmospheric composition below the clouds will be repeatedly measured in the night side infrared windows over a wide range of latitudes and longitudes, thereby providing information on Venus's chemical cycles. In particular, CO, H_2O, OCS and SO_2 can be studied. The cloud structure will be repeatedly mapped from the brightness contrasts in the near-infrared night side windows, providing new insights into Venusian meteorology. The global circulation and local dynamics of Venus will be extensively studied from infrared and visible spectral images.
机译:ESA / Venus Express任务上的可见和红外热成像光谱仪(VIRTIS)具有非常适合金星探索的许多科学目的的技术规格。 VIRTIS将通过其三个通道VIRTIS-M-vis(成像光谱仪在0.3-1μm范围内),VIRTIS-M-IR(成像光谱仪在3个通道内)全面探索大量的大气特性和过程,并绘制表面光学特性图。 1-5μm范围)和VIRTIS-H(2-5μm范围内的孔径高分辨率光谱仪)。云层下的大气成分将在宽广的经度和纬度范围内的夜侧红外窗口中重复测量,从而提供有关金星化学循环的信息。特别地,可以研究CO,H_2O,OCS和SO_2。云结构将通过近红外夜间侧窗的亮度对比反复绘制,从而提供对维纳斯气象学的新见解。金星的全球环流和局部动力学将通过红外和可见光谱图像进行广泛研究。

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