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Intercomparisons of precipitable water vapour derived from radiosonde, GPS and sunphotometer observations = Primerjava vsebnosti vodne pare v stolpcu zraka na podlagi radiosondaže ter opazovanj GPS in fotometraGong, Shaoqi ...Atmosfeska vsebnost vodne pare v stolpcu zraka PWV (angl. precipitable water vapor) je globalno izrednega pomena tako z vidika hidriloškega kroženja kot prenosa energije. Radiosonde, sončni fotometer ... in sprejemniki GPS (pa tudi širše GNSS) so postali temeljni instrumenti za terestrično opazovanje PVW. Pri študiji smo imeli na voljo vse tri instrumente, ki so bili hkrati nameščeni na opazovalnih postajah, ki so geografsko pokrivale tri tipične podnebne pasove. Podatke PWV z vseh instrumentov smo združili glede na čas opazovanj. Po tem, ko smo odstranili izstopajoča opazovanja, smo izvedli primerjavo vrendosti PWV za vsak par opazovanj različnih instrumentov. Ugotavljamo, da geografska širina in podnebje ne vplivata pomembneje na vrednosti PWV, pridobljene z radiosondažo, z opazovanji GPS ali opazovanji s fotometrom. Odstopanja v vrednostih PWV za katerikoli par instrumentov so normalno porazdeljena, kar pomeni, da v podatkih PWV ni sistematičnih pogreškov. Relativne razlike med vrednostmi PWV, pridobljenimi z radiosondažo in opazovanji GPS, so najmanjše, nekoliko večje so razlike med vrendostmi, pridobljenimi z radiosondažo in fotometrijo, največje razlike pa so med vrednostmi, pridobljenimi z opazovanji GPS in radiosondažo. Študija je zanimiva za spodbujanje uporabe sprejemnikov GPS (GNSS) in fotometrov za določanje vrednosti PWV namesto radiosondaže, saj takšna opazovanja omogočajo tudi visoko časovno ločljivost.Source: Geodetski vestnik : glasilo Zveze geodetov Slovenije = Journal of the Association of Surveyors of Slovenia. - ISSN 0351-0271 (Letn. 64, št. 4, 2020, str. 562-577)Type of material - article, component partPublish date - 2020Language - englishCOBISS.SI-ID - 45267459
Author
Gong, Shaoqi |
Chen, Wenqin |
Zhang, Cunjie |
Wu, Ping, gradbenik(-ica)? |
Han, Jing
Topics
primerjava |
vsebnost vodne pare v stolpcu zraka |
fotometer |
GPS |
radiosondaža |
intercomparison |
precipitable water vapour |
sunphotometer |
GPS |
radiosonde
source: Geodetski vestnik : glasilo Zveze geodetov Slovenije = Journal of the Association of Surveyors of Slovenia. - ISSN 0351-0271 (Letn. 64, št. 4, 2020, str. 562-577)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Gong, Shaoqi | |
Chen, Wenqin | |
Zhang, Cunjie | |
Wu, Ping, gradbenik(-ica)? | |
Han, Jing |
Source: Personal bibliographies
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