Such a highly narrow circles thus maybe something like momentary record of consecutive lightning discharges, electromagnetic fields, induced currents and currents leaded by conductors of phase interface of air column boundary, momentary present above the crop vegetation.
Duru vile nyembamba sana hivyo labda kitu kama rekodi ya muda wa kitambo wa yanayovuja mfululizo umeme, mashamba ya umeme, mikondo halali na mikondo ya leaded na conductors ya awamu ya interface ya mipaka ya hewa safu, muda wa kitambo sasa juu ya mimea ya mazao.