1 Journal of Atmospheric Science Research | Volume 02 | Issue 03 | July 2019 Distributed under creative commons license 4.0 DOI: https://doi.org/10.30564/jasr.v2i3.708 Journal of Atmospheric Science Research https://ojs.bilpublishing.com/index.php/jasr ARTICLE Wind-Waves Characteristics in the International Port of Algiers: Comparison of ALADIN and AROME’s Wind Effect Sara Chikhi 1,2* Mohamed El Amine Slimani 1 1. Department of Energetic and Fluid Mechanics, faculty of physics, University of Science and Technology Houari Bou- medienne (USTHB), 16111 Algiers, Algeria 2. Numerical Weather Forecast, National Center for Meteorology, Avenue Mohamed Khemisti BP 153 Dar el Beida, 16011 Algiers, Algeria ARTICLE INFO ABSTRACT Article history Received: 1 April 2018 Accepted: 20 September 2019 Published Online: 30 November 2019 The sea states numerical modeling has been developed for years, it used for very varied fields such as the sizing of coastal work, the safety of navigation, the study of the stability of the beaches or the water leisure. The spectral third-generation ocean wind-wave model WAVEWATCH III (WW3) software was adopted and developed for simulating wave prop- agation in the Mediterranean basin. In this study, a more detailed study was carried out on the port of Algiers. Two different atmospheric models have been used to get the wind forcing: ALADIN (Area Limited Dynamic Adaptation Inter National Development) with an 8 km resolution. And AROME (Application to Operational Research at Meso-scale) with a 3 km resolution. The results obtained using both of the atmospheric models have been compared and analyzed. Keywords: Wind-Waves Wave propagation Mediterranean basin WAVEWATCH ALADIN model AROME model *Corresponding Author: Sara Chikhi, Department of Energetic and Fluid Mechanics, faculty of physics, University of Science and Technology Houari Boumedienne (USTHB), 16111 Algiers, Algeria; Numerical Weather Forecast, National Center for Meteorology, Avenue Mohamed Khemisti BP 153 Dar el Beida, 16011 Algiers, Algeria; Email: slimani_01@yahoo.fr 1. Introduction T he sea states Forecasts is historically linked to the military and commercial navigation se- curity. For these applications, we first look at the wave’s significant height and the mean period. Any marine activity is utilizing sea state forecasts in various forms. Thus the towing of large installations (barges, drilling platforms) and their use may require detailed information on the height of ridges, the energy of long waves that can arouse resonances in anchors. Sea states play an important role in mixing at the ocean surface and coastal circulation with effects that are begin- ning to be well understood [1,2,8] , but the subject is far from exhausted. Thus the amplitude of long waves forced by waves, responsible for the generation of cuttlefsh in small ports [7] , and coastal circulation can be linked empirically to sea state parameters, but their detailed and quantitative explanation is not yet resolved. The vertical structure of the coastal currents and their role in the exchanges between the coast and the offshore are still very poorly known: it is nevertheless the vehicle of the mineral salts,