Abstract
The first weather radar campaign over Lima, the capital of Peru, a desertic area on the western side of the Peruvian Andes, was carried out to study the occurrence of rain events in summer 2018. The weather radar was installed strategically and was able to overlook three river basins: Rimac, Chillón, and Lurin. An X-band radar (PX-1000) was used, which operates at 9.55 GHz. PX-1000 was built by the Advanced Radar Research Center (ARRC) at the University of Oklahoma (U.S.A.). The radar operated from January 26th to April 1st, 2018, at Cerro Suche located 2910 m ASL and 55 km from the city of Lima. The PX-1000 performed plan-position-indicators (PPI) for elevations starting at 0° up to 20°. The data presented here were obtained using a three-dimensional constant-altitude plan-position-indicator (3D CAPPI), which was generated by high resolution (250 m) nearest point algorithm.
Highlights
The first weather radar campaign over Lima, the capital of Peru, a desertic area on the western side of the Peruvian Andes, was carried out to study the occurrence of rain events in summer 2018
An X-band radar (PX-1000) was used, which operates at 9.55 GHz
PX-1000 was built by the Advanced Radar Research Center (ARRC) at the University of Oklahoma (U.S.A.)
Summary
It is the first weather radar observations over Lima and surrounding basins, a desertic zone influenced by the complex topography of the Andes. These data can be used by scientists and the academic community interested in studying rainfall over desert areas and the topographic effects of the Andes on precipitation. This data is useful to evaluate the performance of high-resolution atmospheric models, especially over complex topography. These polarimetric parameters allow to study the microphysical processes and the impact of microphysics parametrization in the model simulations [1]
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