Annual variation of atmospheric electricity diurnal variation maximum in Kamchatka

Sergey Smirnov,A Dmitriev,Z Rakhmonov,G Vodinchar

doi:10.1051/epjconf/202125401001

Abstract

Atmospheric electric field diurnal variation measured in fair weather conditions over the ocean surface has a typical form which is called a unitary variation. It is associated with the global time and occurs simultaneously all over the planet. However, the diurnal variation, measured over the ground, depends on many local factors. The diurnal variation maximum of the electric field potential gradient, measured at Paratunka observatory, has the maximum close in time to the unitary variation maximum. In the paper we show that this maximum is determined by local conditions and is associated in time with the sunrise. The diurnal variation maximum of the electric field potential gradient, measured at Paratunka observatory in fair weather conditions, has annual variation coinciding with the annual variation of local sunrise.

Highlights

In fair weather conditions, a characteristic diurnal variation of the electric field potential gradient (PG) is observed over the oceans
A characteristic diurnal variation of the electric field potential gradient (PG) is observed over the oceans. This diurnal variation does not depend on local time and is observed simultaneously throughout the planet
At the observatories located on the continents, the effect of morning maximum is observed in PG diurnal variations [3,4,5]

Summary

Introduction

A characteristic diurnal variation of the electric field potential gradient (PG) is observed over the oceans. This diurnal variation does not depend on local time and is observed simultaneously throughout the planet. Local time (LT) at Paratunka observatory is 12 hours ahead of UT. At the observatories located on the continents, the effect of morning maximum is observed in PG diurnal variations [3,4,5]. The authors set the task to find out if the morning maximum of the PG daily variation at the observatory are caused by the UT variation or by the sunrise effect

Measurement methods

Main results and discussion

Conclusions