Abstract. Infrared (IR) sounders, onboard satellites in low Earth orbit, are high spectral resolution interferometers capable of providing very accurate IR radiance measurements using thousands of channels. Though their temporal resolution is a relatively low 12 h, these data can be used to produce high vertical resolution temperature and humidity profiles. Imagers, often aboard satellites in geostationary Earth orbit, are radiometers providing high spatial and temporal resolution radiance measurements across a more limited number of bands, typically ∼10 to ∼20. Their data are used for monitoring Earth’s weather and climate. A data fusion method (developed and previously demonstrated at University of Wisconsin-Madison) is utilized to construct high vertical resolution, sounder-like temperature and humidity retrievals at imager high spatial and temporal resolution. Using the Crosstrack Infrared Sounder (CrIS) and Advanced Baseline Imager (ABI) data, comparison of concurrent and ∼50-min time-series fusion to radiosondes launched from February 2017 to March 2019 over the Department of Energy Atmospheric Radiation Measurement Southern Great Plains Site shows that the improved spatial and temporal resolution does not come at the expense of accuracy as compared with the sounder retrieval at native resolution.

中文翻译：

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地球静止轨道空间和时间尺度的低地球轨道测深仪反演产品

摘要。近地轨道卫星上的红外 (IR) 探测仪是高光谱分辨率干涉仪，能够使用数千个通道提供非常准确的红外辐射测量。尽管它们的时间分辨率相对较低 12 小时，但这些数据可用于生成高垂直分辨率的温度和湿度剖面。成像仪通常安装在地球静止轨道卫星上，是辐射计，可在更有限数量的波段（通常为 ~10 到 ~20）提供高空间和时间分辨率的辐射测量。他们的数据用于监测地球的天气和气候。数据融合方法（开发并先前在威斯康星大学麦迪逊分校演示）用于构建高垂直分辨率，在成像仪的高空间和时间分辨率下进行类似探测的温度和湿度反演。使用 Crosstrack 红外测深仪 (CrIS) 和高级基线成像仪 (ABI) 数据，比较了能源部大气辐射测量部南部大平原站点与 2017 年 2 月至 2019 年 3 月发射的无线电探空仪的同步和~50 分钟时间序列融合表明与原始分辨率下的声音检索相比，改进的空间和时间分辨率不会以牺牲准确性为代价。