The Far INfrarEd Spectrometer for Surface Emissivity (FINESSE) Part I: Instrument description and level 1 radiances (data set)

The data set uploaded to this repository is outlined in a manuscript submitted to the journal Atmospheric Measurement Techniques. A. BB_effective_emissivity: Holds the data set used to characterise instrument calibration target emissivity B. ILS_data: Holds the data set used to model the instrument spectral lineshape C. Time_resolved_spectral_response: Holds the data set establishing the spectral stability of the instrument D. Zenith_radiances_20220323_1100UTC: Holds calibrated radiances acquired by FINESSE to demonstrate it accuracy and precision. Also included in this file is an LBLRTM simulation using coincident ERA5 profile information for the time and location of the observations The Far INfrarEd Spectrometer for Surface Emissivity (FINESSE). Part I: Instrument description and level 1 radiances Jonathan E. Murray1,2, Laura Warwick3, Helen Brindley1,2, Alan Last1, Patrick Quigley1, Andy Rochester1, Alexander. Dewar1, Daniel. Cummins1 1 Department of Physics, Imperial College London, SW7 2BX, UK 2 National Centre for Earth Observation, UK 3 ESA-ESTEC, Noordwijk, Netherlands In the manuscript Part (I) we describe the FINESSE system configuration, outlining the FINESSE spectral characteristics, the data acquisition methodology and the calibration strategy. As part of the process, we evaluate the stability of the system, including the impact of knowledge of blackbody target emissivity and temperature. We also establish a numerical description of the instrument line shape. We demonstrate why it is important to account for these effects by assessing their impact on the overall uncertainty budget on the level 1 radiance products from FINESSE.本仓库上传的数据集已在提交至《大气测量技术（Atmospheric Measurement Techniques）》期刊的手稿中进行了详细概述。 A. BB_effective_emissivity：存储用于表征仪器校准目标发射率的数据集 B. ILS_data：存储用于构建仪器谱线形状模型的数据集 C. Time_resolved_spectral_response：存储用于验证仪器光谱稳定性的数据集 D. Zenith_radiances_20220323_1100UTC：存储由远红外表面发射率光谱仪（Far INfrarEd Spectrometer for Surface Emissivity, FINESSE）获取的定标后辐射量数据，用于验证该仪器的准确度与精密度。该文件中还包含利用观测时刻与地点的同步ERA5廓线信息运行的LBLRTM模拟结果。 《用于表面发射率的远红外光谱仪（FINESSE） 第一部分：仪器描述与一级辐射量》 乔纳森·E·默里¹,²，劳拉·沃里克³，海伦·布林德利¹,²，艾伦·拉斯特¹，帕特里克·奎格利¹，安迪·罗切斯特¹，亚历山大·杜瓦¹，丹尼尔·卡明斯¹ 1 英国帝国理工学院物理系，伦敦 SW7 2BX 2 英国国家地球观测中心 3 欧洲空间局欧洲空间技术研究中心（ESA-ESTEC），荷兰诺德韦克 在本第一部分手稿中，我们对FINESSE系统的配置进行了全面阐述，详细说明了其光谱特性、数据采集方法与定标策略。在此研究过程中，我们对系统的稳定性开展了量化评估，涵盖黑体目标发射率与温度的已知信息对系统性能的影响。同时，我们还建立了仪器谱线形状的数值表征模型。通过评估上述因素对FINESSE一级辐射量产品总不确定度预算的影响，我们论证了在数据分析中考虑这些效应的必要性。