Jurnal Internasional PREDIKSI MARSWRF PROFIL LANDING DESCENT ENTRY: APLIKASI UNTUK MARS EXPLORATION – Fonseca – – Ilmu Bumi dan Luar Angkasa
In this paper we use the Mars implementation of the Planet Research and Weather Forecasting model, MarsWRF, to simulate vertical profiles of Entries, Descendents and Landing (EDL) of the last six missions: Pathfinder Mars Rovers Exploration Opportunity and Spirit Phoenix Mars Science Laboratory Curiosity rover and ExoMars 2016 ( Schiaparelli and compare the results with observed data. To investigate the sensitivity of model predictions to atmospheric dust distribution, MarsWRF is run with two specified dust scenarios. It was concluded that the prediction of MarsWRF EDL could be used as a guide to the design and planning stages of future missions to the planet, because generally capturing the EDL profile was observed, although it had a tendency to underestimate the temperature and overestimate the density for altitude. above 15 km. This can be attributed to incorrect representations of observed dust loading. We have used a model to predict EDL conditions that may be faced by two future missions: ExoMars 2020 and Mars 2020. When running for Oxia Planum and Jezero Crater for estimated landing times, MarsWRF predicts great sensitivity to dust loading especially for horizontal wind speeds in over 10-15 km with a maximum difference of up to ± 30 ms  – 1 for 1945 and for the first and ± 15 ms -1 for the last site. For both sites, the best time for EDL, namely when the wind speed is generally the weakest with a smaller shift in direction, is predicted to be late in the morning and evening.