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Abstract – The corpus of the lead weights from Hellenistic Berytos totalizes twenty-three specimens (185/184?-64/63). It is based on an unfinished and unpublished corpus prepared by Henri Seyrig in the 1960s and 1970s. Since then, several of its sixteen weights have been lost, others appeared on the antiquity market or were discovered during official archaeological excavations. Nineteen emissions are identified. Their study sheds new light on the political status, the ponderal systems and the agoranomoi of the city.

Les auteurs reprennent l’étude des tessères monétiformes au nom de Melqart à Tyr, avec un corpus de douze exemplaires frappés entre 142/1 et 61/0 av. J.-C. Ils proposent un essai de classement et remettent en question les différentes hypothèses concernant leur provenance, leur datation et leur usage. On peut dès lors constater que ces tessères sont produites à Tyr, à partir de 142/1 av. J.-C., date de l’octroi de la consécration et de l’asylie, puis sont datées selon l’ère d’autonomie, commençant en 126/5 av. J.-C. Les dates de production de la quasi-totalité des tessères concordent avec celles de la célébration des jeux héracléens quinquennaux de Tyr.

An improved representation of 3-D air motion and precipitation structure through forecast models and assimilation of observations is vital for improvements in weather forecasting capabilities. However, there are few independent data to properly validate a model forecast of precipitation structure when the underlying dynamics are evolving on short convective timescales. Using data from the JPL Ku/Ka-band Airborne Precipitation Radar (APR-2) and the 2 μmDoppler Aerosol Wind (DAWN) lidar collected during the2017 Convective Processes Experiment (CPEX), the NASA Unified Weather Research and Forecasting (WRF) Ensemble Data Assimilation System (EDAS) modeling system was used to quantify the impact of high-resolution sparsely sampled DAWN measurements on the analyzed variables and on the forecast when the DAWN winds were assimilated. Over-all, the assimilation of the DAWN wind profiles had a discernible impact on the wind field as well as the evolution and timing of the 3-D precipitation structure. Analysis of individual variables revealed that the assimilation of the DAWN winds resulted in important and coherent modifications of the environment. It led to an increase in the near-surface convergence, temperature, and water vapor, creating more favorable conditions for the development of convection exactly where it was observed (but not present in the control run). Comparison to APR-2 and observations by the Global Precipitation Measurement (GPM) satellite shows a much-improved forecast after the assimilation of the DAWN winds – development of precipitation where there was none, more organized precipitation where there was some, and a much more intense and organized cold pool, similar to the analysis of the dropsonde data. The onset of the vertical evolution of the precipitation showed similar radar-derived cloud-top heights, but delayed in time. While this investigation was limited to a single CPEX flight date, the investigation design is appropriate for further investigation of the impact of airborne Doppler wind lidar observations upon short-term convective precipitation forecasts