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Sensitivity of Surface Meteorology to Changes in Cloud Microphysics Associated with IMF B y. / Karagodin, Arseniy; Mironova, Irina; Rozanov, Eugene.
Problems of Geocosmos–2020. Springer Nature, 2022. p. 413-420 (Springer Proceedings in Earth and Environmental Sciences).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Sensitivity of Surface Meteorology to Changes in Cloud Microphysics Associated with IMF B y
AU - Karagodin, Arseniy
AU - Mironova, Irina
AU - Rozanov, Eugene
N1 - Publisher Copyright: © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - In recent decades, the response of surface meteorology to the variation of the B y component of the interplanetary magnetic field (IMF) at high latitudes, known as the Mansurov effect, has been extensively studied. However, the role of the global electric circuit (GEC) in these processes is still unclear. Recent studies suggested that the response of cloud microphysics to IMF B y -induced changes in cross-polar cap potential and fair weather downward current density J z may be one of the possible ways for solar wind-surface meteorology coupling. Such a mechanism requires confirmation, but numerical studies that would show the Mansurov effect discovered in observations have not been carried out earlier. In this work, we evaluated a sensitivity of surface meteorological parameters to a certain change in the stratiform-cloud autoconversion rate imposed by the IMF B y -related changes in the J z using the chemistry-climate model SOCOLv3. It should be noted that in this first study, we use the non-realistic approach where the IMF B y -induced anomalies staying constant for the whole period of simulation. Nevertheless, we found that even small changes of ± 12% in the J z and corresponding changes in the autoconversion rate in regions where IMF B y -induced anomalies in the cross-polar cap potential occur, can lead to large-scale anomalies in surface pressure (up to 2 hPa) and air temperature (up to 1.5∘ K) at high and middle latitudes that are in good agreement in magnitude with those detected in observations. This study shows the importance of further investigating solar-terrestrial coupling through the GEC using global climate models.
AB - In recent decades, the response of surface meteorology to the variation of the B y component of the interplanetary magnetic field (IMF) at high latitudes, known as the Mansurov effect, has been extensively studied. However, the role of the global electric circuit (GEC) in these processes is still unclear. Recent studies suggested that the response of cloud microphysics to IMF B y -induced changes in cross-polar cap potential and fair weather downward current density J z may be one of the possible ways for solar wind-surface meteorology coupling. Such a mechanism requires confirmation, but numerical studies that would show the Mansurov effect discovered in observations have not been carried out earlier. In this work, we evaluated a sensitivity of surface meteorological parameters to a certain change in the stratiform-cloud autoconversion rate imposed by the IMF B y -related changes in the J z using the chemistry-climate model SOCOLv3. It should be noted that in this first study, we use the non-realistic approach where the IMF B y -induced anomalies staying constant for the whole period of simulation. Nevertheless, we found that even small changes of ± 12% in the J z and corresponding changes in the autoconversion rate in regions where IMF B y -induced anomalies in the cross-polar cap potential occur, can lead to large-scale anomalies in surface pressure (up to 2 hPa) and air temperature (up to 1.5∘ K) at high and middle latitudes that are in good agreement in magnitude with those detected in observations. This study shows the importance of further investigating solar-terrestrial coupling through the GEC using global climate models.
KW - Atmospheric electricity
KW - Climate
KW - Cloud microphysics
KW - Mansurov effect
KW - Numerical modeling
KW - Solar-terrestrial coupling
KW - Surface pressure and air temperature
UR - http://www.scopus.com/inward/record.url?scp=85125229860&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/6c73a9ce-d24f-3b69-a532-181b2d934b36/
U2 - 10.1007/978-3-030-91467-7_30
DO - 10.1007/978-3-030-91467-7_30
M3 - Conference contribution
AN - SCOPUS:85125229860
T3 - Springer Proceedings in Earth and Environmental Sciences
SP - 413
EP - 420
BT - Problems of Geocosmos–2020
PB - Springer Nature
Y2 - 5 October 2020 through 9 October 2020
ER -
ID: 93250045