Té Yao, Jeseck Pascal, Camy-Peyret Claude, Payan Sébastien, Perron Gaetan, Aubertin Ginette
Laboratoire de Physique Moléculaire et Applications, Centre National de la Recherche Scientifique, Université Pierre et Marie Curie, Paris, France.
Appl Opt. 2002 Oct 20;41(30):6431-41. doi: 10.1364/ao.41.006431.
Laboratoire de Physique Moléculaire et Applications (LPMA)/Infrared Atmospheric Sounding interferometer (IASI) balloon is a calibrated infrared Fourier transform spectrometer that is used to measure the Earth's atmospheric emission (650-3000 cm(-1)). Operating under a stratospheric balloon, this spectroradiometer provides radiometrically calibrated spectra with an apodized spectral resolution of 0.1 cm(-1), which can be used to retrieve the concentration of atmospheric trace gases such as H2O, CO2, CO, O3, N2O, and CH4. The radiometric calibration is performed by use of two reference blackbodies. A reference cavity (LPMA blackbody) has been developed to validate the radiometric calibration procedure and to characterize the instrument performances. One goal of the LPMA/IASI balloon is the preparation of the IASI mission, which is a satellite instrument dedicated primarily to operational meteorology. A description of the LPMA/IASI balloon, its performances, and the results obtained during the first flight of the instrument are presented.
分子物理与应用实验室（LPMA）/红外大气探测干涉仪（IASI）气球是一台经过校准的红外傅里叶变换光谱仪，用于测量地球大气发射（650 - 3000厘米⁻¹）。该光谱辐射计在平流层气球下运行，提供经过辐射校准的光谱，其变迹光谱分辨率为0.1厘米⁻¹，可用于反演大气痕量气体如H₂O、CO₂、CO、O₃、N₂O和CH₄的浓度。辐射校准通过使用两个参考黑体进行。已开发出一个参考腔（LPMA黑体）来验证辐射校准程序并表征仪器性能。LPMA/IASI气球的一个目标是为IASI任务做准备，IASI是一台主要用于业务气象学的卫星仪器。本文介绍了LPMA/IASI气球、其性能以及该仪器首次飞行期间获得结果。
