Annual variation of atmospheric electricity diurnal variation maximum in Kamchatka

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