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The Microwave Temperature and Humidity Profiler: Description and Preliminary Results
This manuscript presents the Microwave Temperature and Humidity Profiler (MTHP), a dual-band spectroradiometer designed for measuring multi-incidence angle temperature and humidity atmospheric profiles from an aircraft platform. The MTHP bands are at 60 GHz for measuring the oxygen complex lines, th...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10610827/ https://www.ncbi.nlm.nih.gov/pubmed/37896648 http://dx.doi.org/10.3390/s23208554 |
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author | Munoz-Martin, Joan Francesc Bosch-Lluis, Xavier Pradhan, Omkar Brown, Shannon T. Kangaslahti, Pekka P. Tanner, Alan B. Ogut, Mehmet Misra, Sidharth Lim, Boon H. |
author_facet | Munoz-Martin, Joan Francesc Bosch-Lluis, Xavier Pradhan, Omkar Brown, Shannon T. Kangaslahti, Pekka P. Tanner, Alan B. Ogut, Mehmet Misra, Sidharth Lim, Boon H. |
author_sort | Munoz-Martin, Joan Francesc |
collection | PubMed |
description | This manuscript presents the Microwave Temperature and Humidity Profiler (MTHP), a dual-band spectroradiometer designed for measuring multi-incidence angle temperature and humidity atmospheric profiles from an aircraft platform. The MTHP bands are at 60 GHz for measuring the oxygen complex lines, therefore at this band, MTHP has a hyperspectral radiometer able to provide 2048 channels over an 8 GHz bandwidth, and 183 GHz for measuring water vapor, which only uses four channels since this absorption band’s spectral richness is simpler. The MTHP builds upon the Microwave Temperature Profiler (MTP) with the inclusion of the hyperspectral radiometer. The instrument’s design, components, and calibration methods are discussed in detail, with a focus on the three-point calibration scheme involving internal calibration loads and static air temperature readings. Preliminary results from the Technological Innovation into Iodine and GV aircraft Environmental Research (TI3GER) campaign are presented, showcasing the instrument’s performance during flights across diverse geographical regions. The manuscript presents successful antenna temperature measurements at 60 GHz and 183 GHz. The hyperspectral measurements are compared with a simulated antenna temperature using the Atmospheric Radiative Transfer Simulator (ARTS) showing an agreement better than R(2) > 0.88 for three of the flights analyzed. Additionally, the manuscript draws attention to potential Radio Frequency Interference (RFI) effects observed during a specific flight, underscoring the instrument’s sensitivity to external interference. This is the first-ever airborne demonstration of a broadband and hyperspectral multi-incidence angle 60 GHz measurement. Future work on the MTHP could result in an improved spatial resolution of the atmospheric temperature vertical profile and, hence, help in estimating the Planetary Boundary Layer (PBL) with better accuracy. The MTHP and its hyperspectral multi-incidence angle at 60 GHz have the potential to be a valuable tool for investigating the PBL’s role in atmospheric dynamics, offering insights into its impact on Earth’s energy, water, and carbon cycles. |
format | Online Article Text |
id | pubmed-10610827 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106108272023-10-28 The Microwave Temperature and Humidity Profiler: Description and Preliminary Results Munoz-Martin, Joan Francesc Bosch-Lluis, Xavier Pradhan, Omkar Brown, Shannon T. Kangaslahti, Pekka P. Tanner, Alan B. Ogut, Mehmet Misra, Sidharth Lim, Boon H. Sensors (Basel) Article This manuscript presents the Microwave Temperature and Humidity Profiler (MTHP), a dual-band spectroradiometer designed for measuring multi-incidence angle temperature and humidity atmospheric profiles from an aircraft platform. The MTHP bands are at 60 GHz for measuring the oxygen complex lines, therefore at this band, MTHP has a hyperspectral radiometer able to provide 2048 channels over an 8 GHz bandwidth, and 183 GHz for measuring water vapor, which only uses four channels since this absorption band’s spectral richness is simpler. The MTHP builds upon the Microwave Temperature Profiler (MTP) with the inclusion of the hyperspectral radiometer. The instrument’s design, components, and calibration methods are discussed in detail, with a focus on the three-point calibration scheme involving internal calibration loads and static air temperature readings. Preliminary results from the Technological Innovation into Iodine and GV aircraft Environmental Research (TI3GER) campaign are presented, showcasing the instrument’s performance during flights across diverse geographical regions. The manuscript presents successful antenna temperature measurements at 60 GHz and 183 GHz. The hyperspectral measurements are compared with a simulated antenna temperature using the Atmospheric Radiative Transfer Simulator (ARTS) showing an agreement better than R(2) > 0.88 for three of the flights analyzed. Additionally, the manuscript draws attention to potential Radio Frequency Interference (RFI) effects observed during a specific flight, underscoring the instrument’s sensitivity to external interference. This is the first-ever airborne demonstration of a broadband and hyperspectral multi-incidence angle 60 GHz measurement. Future work on the MTHP could result in an improved spatial resolution of the atmospheric temperature vertical profile and, hence, help in estimating the Planetary Boundary Layer (PBL) with better accuracy. The MTHP and its hyperspectral multi-incidence angle at 60 GHz have the potential to be a valuable tool for investigating the PBL’s role in atmospheric dynamics, offering insights into its impact on Earth’s energy, water, and carbon cycles. MDPI 2023-10-18 /pmc/articles/PMC10610827/ /pubmed/37896648 http://dx.doi.org/10.3390/s23208554 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Munoz-Martin, Joan Francesc Bosch-Lluis, Xavier Pradhan, Omkar Brown, Shannon T. Kangaslahti, Pekka P. Tanner, Alan B. Ogut, Mehmet Misra, Sidharth Lim, Boon H. The Microwave Temperature and Humidity Profiler: Description and Preliminary Results |
title | The Microwave Temperature and Humidity Profiler: Description and Preliminary Results |
title_full | The Microwave Temperature and Humidity Profiler: Description and Preliminary Results |
title_fullStr | The Microwave Temperature and Humidity Profiler: Description and Preliminary Results |
title_full_unstemmed | The Microwave Temperature and Humidity Profiler: Description and Preliminary Results |
title_short | The Microwave Temperature and Humidity Profiler: Description and Preliminary Results |
title_sort | microwave temperature and humidity profiler: description and preliminary results |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10610827/ https://www.ncbi.nlm.nih.gov/pubmed/37896648 http://dx.doi.org/10.3390/s23208554 |
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