In-flight calibration and monitoring of the Tropospheric Monitoring Instrument (TROPOMI) short-wave infrared (SWIR) module
In-flight calibration and monitoring of the Tropospheric Monitoring Instrument (TROPOMI) short-wave infrared (SWIR) module
复制标题
对流层监测仪器 (TROPOMI) 短波红外 (SWIR) 模块的飞行中校准和监测
DOI：
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复制
发表时间：
2019
影响因子：
3.8
通讯作者：
R. Hoogeveen
中科院分区：
文献类型：
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作者：
T. V. Kempen;R. V. Hees;P. Tol;I. Aben;R. Hoogeveen
摘要。短波红外（SWIR）对流层监测仪在第一年运行期间
Abstract. During its first year in operation the short-wave infrared (SWIR) Tropospheric Monitoring Instrument
(TROPOMI) was
calibrated in-flight and its performance was monitored.
In this paper we present the results of the in-flight calibration and the ongoing instrument monitoring. This includes the determination of the background signals, noise performance, instrument spectral response function (ISRF) stability, and stray-light stability. From these results, the number of incurred dead and bad
pixels due to cosmic-ray impacts is determined. The light-path transmission is checked by monitoring internal lamp and diffuser stabilities.
Due to its high sensitivity to Earth radiation on the eclipse side, the calibration strategy for the background (i.e. dark current and offset) monitoring was adjusted.
Trends over the first full year of nominal operations reveal a very stable SWIR module. The number of newly incurred dead and bad pixels
is less than 0.1 % over nearly a full year since the start of operations. Assuming linear degradation of various components, the SWIR module is expected to keep performing within expected parameters for the full operational lifetime.