Variação temporal do Índice de Desconforto Térmico (ID) no município de João Pessoa/PB, 2002 A 2018

Abstract

The present work aims to analyze the variation of the annual, monthly and daily values of the Thermal Discomfort Index (ID) for the municipality of João Pessoa, Paraíba, from 2002 to 2018. To this end, it was necessary to create the ID data series for the municipality. The ID series was created in a spreadsheet environment using hourly values (9, 15 and 21 hours) of dry bulb temperature and relative humidity provided by the National Institute of Education Meteorological Research Database. Meteorology (BDMEP / INMET) from the João Pessoa Meteorological Station. Subsequently, dry bulb temperature and relative humidity values were applied to the equation proposed by Giles et al (1990) to obtain discomfort indices. The indices generated were categorized into comfort zones reported by Ayoade (2010), they are with their respective ID ranges: Cold Discomfort (ID ≤ 18.9 ° C), Comfortable (18.9 ° C <ID ≤ 25.6 ºC) and Discomfort to heat (ID> 25,6ºC). No ID series value was found to be in the Cold Discomfort Zone. The average ID for the municipality is 25.9ºC, corresponding to the Heat Discomfort Zone, while the months of greatest heat discomfort are February, March and April, months corresponding to the rainy pre-season. João Pessoa. In general, there was a close relationship between rainfall, wind speed and air humidity in the average and daily variation of the indices.