First light from the Far‐Infrared Spectroscopy of the Troposphere (FIRST) instrument
First light from the Far‐Infrared Spectroscopy of the Troposphere (FIRST) instrument
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来自对流层远红外光谱仪 (FIRST) 仪器的第一束光
DOI：
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发表时间：
2006
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影响因子：
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通讯作者：
Xu Liu
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文献类型：
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作者：
M. Mlynczak;David G. Johnson;H. Latvakoski;K. Jucks;M. Watson;D. Kratz;G. Bingham;W. Traub;S. Wellard;Charles R. Hyde;Xu Liu
我们提出了第一个光谱，测量了新开发的远红外光谱对流层（第一）仪器在高空气球飞行从英尺。Sumner，NM，2005年6月7日。FIRST是一种傅里叶变换光谱仪，用于精确测量地球及其大气的远红外（15至100 μm; 650至100波数，cm−1）发射光谱。飞行数据成功地证明了FIRST仪器能够在一个具有宽光谱带通分束器的仪器中，在单个焦平面上以高光谱和空间分辨率观测整个能量显著的红外发射光谱（50至2000 cm-1）。与辐射传输计算的比较表明，FIRST精确地观察到远红外的非常精细的光谱结构。比较还表明，由FIRST测量的大气窗口辐射与飞越FIRST飞行的NASA Aqua卫星上的仪器测量的大气窗口辐射非常一致。FIRST打开了一个新的光谱窗口，可用于研究大气辐射和气候，卷云和对流层上部的水蒸气。
We present first light spectra that were measured by the newly‐developed Far‐Infrared Spectroscopy of the Troposphere (FIRST) instrument during a high‐altitude balloon flight from Ft. Sumner, NM on 7 June 2005. FIRST is a Fourier Transform Spectrometer designed to measure accurately the far‐infrared (15 to 100 μm; 650 to 100 wavenumbers, cm−1) emission spectrum of the Earth and its atmosphere. The flight data successfully demonstrated the FIRST instrument's ability to observe the entire energetically significant infrared emission spectrum (50 to 2000 cm−1) at high spectral and spatial resolution on a single focal plane in an instrument with one broad spectral bandpass beamsplitter. Comparisons with radiative transfer calculations demonstrate that FIRST accurately observes the very fine spectral structure in the far‐infrared. Comparisons also show excellent agreement between the atmospheric window radiance measured by FIRST and by instruments on the NASA Aqua satellite that overflew the FIRST flight. FIRST opens a new window on the spectrum that can be used for studying atmospheric radiation and climate, cirrus clouds, and water vapor in the upper troposphere.