Preprint Article Version 1 This version is not peer-reviewed

Diurnal Cycle of Convection in the Peruvian Highlands

Version 1 : Received: 6 June 2019 / Approved: 11 June 2019 / Online: 11 June 2019 (10:01:22 CEST)

How to cite: Chuchón Angulo, E.; Pereira Filho, A. Diurnal Cycle of Convection in the Peruvian Highlands. Preprints 2019, 2019060092 (doi: 10.20944/preprints201906.0092.v1). Chuchón Angulo, E.; Pereira Filho, A. Diurnal Cycle of Convection in the Peruvian Highlands. Preprints 2019, 2019060092 (doi: 10.20944/preprints201906.0092.v1).

Abstract

This manuscript examines from the diurnal convection cycle (CDC) to the interdecadal variability in the region of the Peruvian Altiplano (RAP). Currently, estimating precipitation using satellites is an alternative which can be used to study the spatio-temporal evolution of precipitation systems. Herein CPC data Morphing technique - CMORPH (Joyce et al, 2004) was used between 2002 and 2014 to analyze the CDC in RAP. The CMOPRH data were compared with rainfall data series measured by rain gauges of meteorological stations (EMS) in the RAP. The results indicate that the CDC shows high variability in the Titicaca Basin and is associated with patterns of lake breeze (day), land breeze (night) and mountain - valley circulation. The CDC starts at 1800 HL (local time) in the northern region of Lake Titicaca, lasting between 2 h and 6 h, and most of 2000 HL. The CDC over the dry surface (ST) of Titicaca Basin starts early at around 1200 HL, lasting 4 h to 7 h, and maximum at 1800 HL.

Subject Areas

CMORPH; CDC; Titicaca Lake

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