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Airborne interferometer for atmospheric emission and solar absorption

机译:机载干涉仪,用于大气辐射和太阳吸收

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摘要

The interferometer for emission and solar absorption (INTESA) is an infrared spectrometer designed to study radiative transfer in the troposphere and lower stratosphere from a NASA ER-2 aircraft. The Fourier-transform spectrometer (FTS) operates from 0.7 to 50 μm with a resolution of 0.7 cm~(-1). The FTS observes atmospheric thermal emission from multiple angles above and below the aircraft. A heliostat permits measurement of solar absorption spectra. INTESA's calibration system includes three blackbodies to permit in-flight assessment of radiometric error. Results suggest that the in-flight radiometric accuracy is ~0.5 K in the mid-infrared.
机译:发射和太阳吸收干涉仪(INTESA)是一款红外光谱仪,旨在研究NASA ER-2飞机在对流层和低平流层中的辐射传递。傅里叶变换光谱仪(FTS)在0.7至50μm之间运行,分辨率为0.7 cm〜(-1)。 FTS从飞机上方和下方的多个角度观察大气的热辐射。定日镜可以测量太阳吸收光谱。 INTESA的校准系统包括三个黑体,可以在飞行中评估辐射误差。结果表明,中红外的飞行中辐射测量精度约为0.5K。

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