Current and Future Weather Forecast Needs for the Passive Microwave Sounder 22-24 GHz Channels in the Context of RFI
- Resource Type
- Conference
- Authors
- Cao, Changyong; Liu, Quanhua; Shao, Xi Sean
- Source
- IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, IGARSS 2023 - 2023 IEEE International. :689-692 Jul, 2023
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Geoscience
Signal Processing and Analysis
Microwave measurement
Sensitivity
Atmospheric measurements
Atmospheric modeling
Weather forecasting
Land surface
Geoscience and remote sensing
Radio Frequency Interference (RFI)
5G
microwave sounder
weather forecast
- Language
- ISSN
- 2153-7003
Passive microwave radiometer sounders are the backbones for numerical weather prediction under all sky conditions. Modern 5G technology represents a significant advancement in internet and communication technology, but may overlap with some of the passive microwave sounder channels, in particular the 5G’s 24 GHz channel may interfere with the 23.8 GHz total column water vapor channel measurements over land. This paper assesses the importance of the 23.8GHz channel for atmospheric sounding by analyzing the vertical weighting functions at different pressure levels to address the issue of sensitivity of this channel over land, and related issues such as land surface emissivity. Modeling experiments are also performed to assess the impacts of this channel on water vapor retrievals using the Microwave Integrated Retrieval System (MiRS). The role of this channel in detecting planetary boundary layer (PBL) water vapor is also discussed.