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Rainfall retrieval from E-band commercial microwave links

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00341029" target="_blank" >RIV/68407700:21110/19:00341029 - isvavai.cz</a>

  • Result on the web

    <a href="https://meetingorganizer.copernicus.org/EGU2019/EGU2019-14956.pdf" target="_blank" >https://meetingorganizer.copernicus.org/EGU2019/EGU2019-14956.pdf</a>

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Rainfall retrieval from E-band commercial microwave links

  • Original language description

    Use of commercial microwave links (CMLs) as rainfall sensors was suggested about decade ago. Since then, several studies have confirmed that CMLs operated at frequencies between 20 – 40 GHz, which were up until now most commonly used by mobile network operators as cellular backhaul, can provide reliable rainfall intensity estimates. However, continuously increasing demand on data traffic force mobile network operators utilizing higher frequency spectra. New generation of CMLs operated at E-band (60 – 90 GHz) is, therefore, gradually completing current networks and often even replacing older (20 – 40 GHz) devices. However, up until now, there has not been any studies reported, which would investigate potential of these devices for rainfall retrieval. Compared to lower frequency devices, CMLs operated at E-band are more sensitive to rainfall, nevertheless the relationship between attenuation and rainfall is not anymore linear for these frequencies. Furthermore, attenuation along their path is noticeably influenced by water vapor. Finally, E-band CMLs has usually full-duplex configuration with two channels operating in one direction at 71 – 76 GHz and in the second direction at 81 – 86 GHz with duplex separation 10 GHz. Thus, rainfall intensity can be estimated using standard attenuation-rainfall model but also the model based on differential attenuation, which is, in theory, insensitive to wet antenna effect.

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • CEP classification

  • OECD FORD branch

    10501 - Hydrology

Result continuities

  • Project

    <a href="/en/project/GA17-16389S" target="_blank" >GA17-16389S: Hydrological estimates from radiowave propagation in terrestial microwave network</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů