Regular paper 16 Jul 2013
Regular paper | 16 Jul 2013
Comments on quiet daily variation derivation in "Identification of the IMF sector structure in near-real time by ground magnetic data" by Janzhura and Troshichev (2011)
P. Stauning
Related authors
Invariability of relationship between the polar cap magnetic activity and geoeffective interplanetary electric fieldby Troshichev et al. (2011)
Peter Stauning
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2020-52, https://doi.org/10.5194/angeo-2020-52, 2020
Revised manuscript accepted for ANGEO
Short summary
Short summary
In Troshichev et al. (2006) an error was made in the calculations of Polar Cap (PC) index scaling parameters. For the publication commented here, Troshichev et al. (2011), the authors state having used scaling parameters of the invalid PC index version but have actually substituted parameters from another version instead. The mingling of PC index versions has resulted in erroneous illustrations in Figs. 1, 2, 3, 6, 7, and 8 and the issuing of non-substantiated statements.
Identification of the IMF sector structure in near-real time by ground magnetic databy Janzhura and Troshichev (2011)
Peter Stauning
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2020-53, https://doi.org/10.5194/angeo-2020-53, 2020
Revised manuscript accepted for ANGEO
Short summary
Short summary
The commented publication by Janzhura and Troshichev (2011) constitute basis for IAGA endorsement by Resolution 3 (2013) of PC index calculations. However, there is strong disagreement between indications in the title, abstract, statements in the text, and figure captions, as well as in illustrations of results compared to re-calculations of the relations by rigorous use of the presented near-real time procedure. Against their statements, none of the illustrations present near-real time methods.
Peter Stauning
Ann. Geophys., 36, 621–631, https://doi.org/10.5194/angeo-36-621-2018, https://doi.org/10.5194/angeo-36-621-2018, 2018
Short summary
Short summary
The Polar Cap (PC) indices, PCN (North) based on magnetic data from Qaanaaq (Thule) and PCS (South) based on Vostok data, reflect the transpolar convection of plasma and magnetic fields. The PC indices could be used, among others, to indicate the energy transfer from the solar wind to the magnetosphere–ionosphere–thermosphere system in space weather monitoring applications. The present IAGA-endorsed methods to derive PC indices in real time are found to generate inconsistent index values.
Invariability of relationship between the polar cap magnetic activity and geoeffective interplanetary electric fieldby Troshichev et al. (2011)
Peter Stauning
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2020-52, https://doi.org/10.5194/angeo-2020-52, 2020
Revised manuscript accepted for ANGEO
Short summary
Short summary
In Troshichev et al. (2006) an error was made in the calculations of Polar Cap (PC) index scaling parameters. For the publication commented here, Troshichev et al. (2011), the authors state having used scaling parameters of the invalid PC index version but have actually substituted parameters from another version instead. The mingling of PC index versions has resulted in erroneous illustrations in Figs. 1, 2, 3, 6, 7, and 8 and the issuing of non-substantiated statements.
Identification of the IMF sector structure in near-real time by ground magnetic databy Janzhura and Troshichev (2011)
Peter Stauning
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2020-53, https://doi.org/10.5194/angeo-2020-53, 2020
Revised manuscript accepted for ANGEO
Short summary
Short summary
The commented publication by Janzhura and Troshichev (2011) constitute basis for IAGA endorsement by Resolution 3 (2013) of PC index calculations. However, there is strong disagreement between indications in the title, abstract, statements in the text, and figure captions, as well as in illustrations of results compared to re-calculations of the relations by rigorous use of the presented near-real time procedure. Against their statements, none of the illustrations present near-real time methods.
Peter Stauning
Ann. Geophys., 36, 621–631, https://doi.org/10.5194/angeo-36-621-2018, https://doi.org/10.5194/angeo-36-621-2018, 2018
Short summary
Short summary
The Polar Cap (PC) indices, PCN (North) based on magnetic data from Qaanaaq (Thule) and PCS (South) based on Vostok data, reflect the transpolar convection of plasma and magnetic fields. The PC indices could be used, among others, to indicate the energy transfer from the solar wind to the magnetosphere–ionosphere–thermosphere system in space weather monitoring applications. The present IAGA-endorsed methods to derive PC indices in real time are found to generate inconsistent index values.