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Challenges in Diurnal Humidity Analysis from Cellular Microwave Links (CML) over Germany

Rubin, Yoav ; Rostkier-Edelstein, Dorita; Chwala, Christian ORCID iD icon 1; Alpert, Pinhas
1 Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU), Karlsruher Institut für Technologie (KIT)

Abstract:

Near-surface humidity is a crucial variable in many atmospheric processes, mostly related to the development of clouds and rain. The humidity at the height of a few tens of meters above ground level is highly influenced by surface characteristics. Measuring the near-surface humidity at high resolution, where most of the humidity’s sinks and sources are found, is a challenging task using classical tools. A novel approach for measuring the humidity is based on commercial microwave links (CML), which provide a large part of the cellular networks backhaul. This study focuses on employing humidity measurements with high spatio–temporal resolution in Germany. One major goal is to assess the errors and the environmental influence by comparing the CML-derived humidity to in-situ humidity measurements at weather stations and reanalysis (COSMO-Rea6) products. The method of retrieving humidity from the CML has been improved as compared to previous studies due to the use of new data at high temporal resolution. The results show a similar correlation on average and generally good agreement between both the CML retrievals and the reanalysis, and 32 weather stations near Siegen, West Germany (CML—0.84, Rea6—0.85). ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000146883
Veröffentlicht am 01.06.2022
Originalveröffentlichung
DOI: 10.3390/rs14102353
Scopus
Zitationen: 7
Web of Science
Zitationen: 6
Dimensions
Zitationen: 7
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2072-4292
KITopen-ID: 1000146883
HGF-Programm 12.11.33 (POF IV, LK 01) Regional Climate and Hydrological Cycle
Erschienen in Remote Sensing
Verlag MDPI
Band 14
Heft 10
Seiten Art.-Nr.: 2353
Vorab online veröffentlicht am 12.05.2022
Schlagwörter cellular microwave links; CML; humidity monitoring; Germany; high temporal resolution
Nachgewiesen in Dimensions
Web of Science
Scopus
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