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Definition of "attachment process" |
a process that occurs in lightning when one or more stepped leader branches approach within a hundred meters or so of the ground and the electric field at the ground increases above the critical breakdownfield of the surrounding air. At that time one or more upward-going discharges is initiated.After traveling a few tens of meters,one of the upward discharges, which is essentially at ground potential, contracts the tip of one branch of the stepped leader, which is at a high potential, completing the leader path to ground. |
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