EGU21-51
https://doi.org/10.5194/egusphere-egu21-51
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Ground-level atmospheric electricity of mid-latitude Nimbostratus and Stratus cloud at Swider station, Poland

Anna Odzimek1, Piotr Baranski1, Marek Kubicki1, Jerzy Berlinski2, and Danuta Jasinkiewicz1
Anna Odzimek et al.
  • 1Institute of Geophysics PAS, Department of Atmospheric Physics, Warsaw, Poland (aodzimek@igf.edu.pl)
  • 2Faculty of Electronics and Information Technology, Warsaw University of Technology, Warsaw, Poland

We present main results of our analysis of the ground-level atmospheric electricity under  Nimbostratus and Stratus clouds at mid-latitude Geophysical Observatory in Swider. Atmospheric electricity data from the Geophysical Observatory in Swider was analysed according to the calculation scheme allowing to obtain the main components of the current density in such conditions, i.e. conduction current density and precipitation or convection current, based on the basic measured parameters: electric field, Maxwell current density and total air conductivity. The atmospheric electric field and conduction current is more likely downward under Stratus cloud as is the precipitation or convection current. The electric field under Nimbostratus during snow at the ground is downward and during rain is upward and sometimes also upward precipitation current occurs during heavier rain. Mean values of electric field, conductivity, conduction and precipitation current have been obtained and an average mean current budget was calculated. Another analysis concerns the dependence of precipitation current density on the electric field at the Earth's surface in the conditions of Nimbostratus with continuous, stable precipitation, in historical cases reported as linear. The dependence of the linear regression coefficients on the value of electrical conductivity of the air was particularly investigated from the angle of the theoretical results of the work of Ette and Oladiran (1980).

How to cite: Odzimek, A., Baranski, P., Kubicki, M., Berlinski, J., and Jasinkiewicz, D.: Ground-level atmospheric electricity of mid-latitude Nimbostratus and Stratus cloud at Swider station, Poland, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-51, https://doi.org/10.5194/egusphere-egu21-51, 2020.

Corresponding presentation materials formerly uploaded have been withdrawn.