Abstract Solar-wind 3-D reconstruction tomography based on interplanetary scintillation (IPS) studies provides fundamental information for space-weather forecasting models, and gives the possibility to determine heliospheric column densities. Here we compare the time series of Solar-wind column densities derived from long-term observations of pulsars, and the Solar-wind reconstruction provided by the UCSD IPS tomography. In particular, we analyze the 2016, 2017 and 2018 Solar passages of PSR J0034-0534, and the 2016 and 2018 Solar passages of PSR J1022 + 1001. The results show that, where the UCSD IPS tomography makes use of its most robust settings, the matches between the two techniques are characterized by Pearson’s R coefficients ranging from 0.64 to 0.90, indicating a good level of agreement. This unique work represents a completely independent comparison and validation of these techniques to provide such measurements, and it strengthens confidence in the use of both in space-weather analyses applications.


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    Title :

    Validation of heliospheric modeling algorithms through pulsar observations I: Interplanetary scintillation-based tomography


    Contributors:
    Tiburzi, C. (author) / Jackson, B.V. (author) / Cota, L. (author) / Shaifullah, G.M. (author) / Fallows, R.A. (author) / Tokumaru, M. (author) / Zucca, P. (author)

    Published in:

    Advances in Space Research ; 72 , 12 ; 5287-5297


    Publication date :

    2022-04-28


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Heliospheric Tomography Using Interplanetary Scintillation Observations

    Jackson, B. V. / Hick, P. L. / Kojima, M. et al. | British Library Conference Proceedings | 1997



    Validation of heliospheric modeling algorithms through pulsar observations II: Simulations with EUHFORIA

    Shaifullah, G.M. / Magdalenic, J. / Tiburzi, C. et al. | Elsevier | 2022


    Radio-scintillation observations of interplanetary disturbances

    Watanabe, Takashi / Kakinuma, Takakiyo | Elsevier | 1984