Contribution of Heat Fluxes on Cyclone Narelle as Simulated by a Mesoscale Model

- Heat fluxes from oceanic evaporation particularly latent heat is important to drive the formation and intensification of Cyclone Narelle. The research was carried out by introducing a mesoscale model, namely Weather and Research Forecasting (WRF). One domain with spatial resolution at 10 km was utilized in the model. The model involved significant physical parameters, e.g., Kain-Fritsch in the cumulus scheme, Yonsei University in the Planetary Boundary Layer scheme, and WRF Single-Moment 3-class in the microphysics scheme. The analysis focused on January 8th to 14th upon all stages of Narelle. The result showed that Sea Surface Temperatures (SST) higher than 26°C was a favorable environment for Cylone Narelle to form. Surface sensible and latent heat fluxes have strong positive correlation with wind speed and SST. It can be concluded that these variables were highly correlated with surface heat flux that further lead to the formation and intensification of Cyclone Narelle in early January 2013 over South Indian Ocean. The tracks and stages of the model are nearly similar to the observations, the differences are found in late phases of Narelle

Identifikasi Alat Bantu Penangkapan Ikan pada Bagan Apung di Perairan Krueng Raya

Lift-nets is one of the important fisheries sectors that become the source of coastal comunity livelihood in Krueng Raya, Aceh Besar. The operation of the fishing gear is always supported by the fishing tools that can assist the operation process, as well as the lift-nets that exist in the Krueng Raya area. The main fishing tools on the lift-nets in Krueng Raya are lights, generator and roller. The lack of data and information on the characteristics of fishing equipment becomes an obstacle to improve the development of lift-nets. This study aims to identify fishing equipment used in lift-nets at Krueng Raya. The data were collected by interviewed and directed field observation. Descriptive analysis showed the fishing equipment used in lift-nets in Krueng Raya used neon and mercury lamps, the generator capacity is 15000 watts and roller made of bayur wood (Pterospermum javanicum). The updates of the fishing equipment used in lift-nets at Krueng Rayacan still be made. Kata kunci: Krueng Raya, Lift Ne