Tanjung Perak Port in Surabaya plays a key role in Indonesia's maritime economy through the Jamrud Utara Pier, serving passenger and roll on-roll off ships. Ship berthing activities contribute to greenhouse gas emissions, particularly CO2. This study estimates emissions from 2021-2022, develops a dynamic model of ship behavior, and analyzes berthing duration scenarios until 2030 using the European MEET methodology. Research stages include system identification, model creation, validation, and scenario simulation. Validation uses the Behavior Pattern Test and Mean Absolute Percentage Error. Results estimate emissions at 10,502,847 kg CO2 in 2021 and 10,341,740 kg CO2 in 2022. The model shows emissions increasing with ship gross tonnage, number, and berthing duration. Reducing berthing duration by 15% can cut emissions by 17% in 2030, while a 20% reduction can lower emissions by 25%.