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A preliminary assessment of the value and impact of multiple configurations of constellations of EON-MW, a proposed 12U microwave sounder CubeSat for global NWP
Tellus A: Dynamic Meteorology and Oceanography ( IF 1.7 ) Pub Date : 2020-12-17
Yan Zhou, Narges Shahroudi, Tong Zhu, Flavio Iturbide-Sanchez, Eric S. Maddy, Sid-Ahmed Boukabara, Kayo Ide, Ross N. Hoffman

Abstract

Observing system assessments were made for the Earth Observing Nanosatellite-Microwave (EON-MW), a 12U CubeSat analog of the Advanced Technology Microwave Sounder (ATMS). Since the EON-MW channels and sensor specifications closely follow those of ATMS, the sensor characteristics and geophysical capabilities assessments indicate that the value of information for humidity (temperature) of EON-MW observations will be similar (very similar) to that of ATMS. Eight global observing system simulation experiments (OSSEs) were carried out to evaluate several different EON-MW constellations for data gap mitigation and/or replacement of existing sensors. In these OSSEs, adding 2 EON-MW sensors in different orbits, compared to adding a single EON-MW sensor, improves forecasts generally, and improves the analysis of at least wind and humidity. In terms of the overall OSSE impacts in the scenarios considered, a single EON-MW sensor is a close substitute for ATMS and two EON-MW sensors are a close substitute for the Special Sensor Microwave Imager Sounder (SSMIS). The analysis and forecast impacts indicate that EON-MW provides improved humidity profiles compared to SSMIS and ATMS.



中文翻译:

EON-MW星座的多种配置的价值和影响的初步评估,这是一种建议用于全球NWP的12U微波探测器CubeSat

摘要

对地球观测纳米卫星微波(EON-MW)进行了观测系统评估,EON-MW是先进技术微波探测仪(ATMS)的12U CubeSat类似物。由于EON-MW通道和传感器规格紧随ATMS,因此传感器特性和地球物理能力评估表明EON-MW观测的湿度(温度)信息值将与ATMS相似(非常相似)。进行了八个全球观测系统模拟实验(OSSE),以评估几个不同的EON-MW星座,以减轻数据间隙和/或替换现有传感器。在这些OSSE中,与添加单个EON-MW传感器相比,在不同的轨道上添加2个EON-MW传感器,通常可以改善预报,并且至少可以改善对风和湿度的分析。就所考虑的场景中的整体OSSE影响而言,单个EON-MW传感器可以替代ATMS,而两个EON-MW传感器可以替代特殊传感器微波成像仪(SSMIS)。分析和预测影响表明,与SSMIS和ATMS相比,EON-MW可提供更好的湿度曲线。

更新日期:2020-12-17
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