Lake Laut Tawar is a lake located in Central Aceh Regency, Aceh Province. The local community utilizes this lake as one of their main sources of livelihood. The potential fish production in Danau Laut Tawar in a year can reach 196 tonnes. This figure is quite fantastic and shows how important the role of Lake Laut Tawar is in supporting the local economy and providing food for the local community. However, erratic climate change is destabilizing fish production in Danau Laut Tawar. One of the contributing factors is the upwelling phenomenon. In 2017, this phenomenon harmed floating net cage (KJA) farmers in Lake Laut Tawar, resulting in a loss of up to 225 million Rupiah.

This research uses climate data taken from 2017 - 2023. In analyzing climate data, it is divided into 2 methods, forecast and classification. In the forecast, we determine a suitable model based on the ACF and PACF plots. The model obtained will later be used to forecast the climate for the next 1 year. After the climate results are obtained, the data will then be classified using a semi-supervised method to categorize it as a potential upwelling class or not. The results of this research will then be implemented into an interactive dashboard that Lake Laut Tawar Floating Net Cage (KJA) Cultivators can use to make decisions.