Difference between Disembarkation and Disembarkment

DISEMBARKATION vs DISEMBARKMENT: NOUN

Drop off, Normandy, Unload, Shore, Offload, Access, Invasion, Discharging, Unloading, Departure, Discharge, Landing, Arrival, Disembarkment, Debarkation

Ferry, Output, Embarkation, Unlading, Drop off, Normandy, Unload, Shore, Access, Invasion, Unloading, Departure, Discharge, Arrival, Debarkation

Reasons related to safety, security, customs, and ATC would prohibit disembarkation.
Information is provided beforehand via announcements for smoother boarding and disembarkation.
The distinction between abnormal disembarkation and evacuation is therefore less obvious.
We protest against the disembarkation of American troops at Iloilo.
Towards New Rules on Disembarkation of Persons Rescued at Sea?
Before disembarkation please collect a debrief form from reception.
After breakfast, disembarkation and bus transfer to the airport.
The saddest time of any cruise is disembarkation.
Crew disembarkation is highly restricted at all ports.
Disembarkation at Cape Town is on November 11.

Changes in weather conditions tend to affect sufferers of disembarkment syndrome, particularly weather changes like drops in barometric pressure and hot weather.
Disembarkment syndrome is a medical condition that may occur following a sustained motion event like an aircraft flight or cruise.
Some people with disembarkment syndrome may sleep far beyond their usual sleep times.
Context: A transfer from one IWT vessel to another is regarded as embarkment after disembarkment.