A cautionary note on the computation of daily mean temperatures and their trends

There are different methodologies to compute daily mean temperatures (DMT), including averaging the 24-hourly temperature values, readings at specific times throughout the day or simply averaging the minimum and maximum daily temperatures. This study provides an intercomparison of some of such metho...

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Autor principal:	Saurral, Ramiro Ignacio
Publicado:	2017
Materias:	cloud cover daily mean temperature global warming temperature trends wind intensity Global warming Cloud cover Daily temperatures Local weather conditions Mean temperature Meteorological station Temperature trends Temperature values Wind intensity Meteorology diurnal variation temperature gradient trend analysis warming wind velocity Argentina
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08998418_v37_n9_p3743_Saurral http://hdl.handle.net/20.500.12110/paper_08998418_v37_n9_p3743_Saurral
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_08998418_v37_n9_p3743_Saurral
record_format	dspace
spelling	paper:paper_08998418_v37_n9_p3743_Saurral2023-06-08T15:49:48Z A cautionary note on the computation of daily mean temperatures and their trends Saurral, Ramiro Ignacio cloud cover daily mean temperature global warming temperature trends wind intensity Global warming Cloud cover Daily temperatures Local weather conditions Mean temperature Meteorological station Temperature trends Temperature values Wind intensity Meteorology cloud cover diurnal variation global warming temperature gradient trend analysis warming wind velocity Argentina There are different methodologies to compute daily mean temperatures (DMT), including averaging the 24-hourly temperature values, readings at specific times throughout the day or simply averaging the minimum and maximum daily temperatures. This study provides an intercomparison of some of such methods applied to six meteorological stations in Argentina with continuous hourly measurements for a period of more than 24 years. Results show that differences arising from the various methodologies are largely dependent on the local weather conditions, particularly those related to cloud cover and wind intensity, while the role of air moisture is less important. Furthermore, trends derived from DMT estimates using different methodologies are found to be highly sensitive to the chosen method. In fact, statistically insignificant trends could be significant should other methodologies to calculate DMT had been used. This result could be of importance for diverse scientific areas such as agriculture or climate warming studies. © 2016 Royal Meteorological Society Fil:Saurral, R.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08998418_v37_n9_p3743_Saurral http://hdl.handle.net/20.500.12110/paper_08998418_v37_n9_p3743_Saurral
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	cloud cover daily mean temperature global warming temperature trends wind intensity Global warming Cloud cover Daily temperatures Local weather conditions Mean temperature Meteorological station Temperature trends Temperature values Wind intensity Meteorology cloud cover diurnal variation global warming temperature gradient trend analysis warming wind velocity Argentina
spellingShingle	cloud cover daily mean temperature global warming temperature trends wind intensity Global warming Cloud cover Daily temperatures Local weather conditions Mean temperature Meteorological station Temperature trends Temperature values Wind intensity Meteorology cloud cover diurnal variation global warming temperature gradient trend analysis warming wind velocity Argentina Saurral, Ramiro Ignacio A cautionary note on the computation of daily mean temperatures and their trends
topic_facet	cloud cover daily mean temperature global warming temperature trends wind intensity Global warming Cloud cover Daily temperatures Local weather conditions Mean temperature Meteorological station Temperature trends Temperature values Wind intensity Meteorology cloud cover diurnal variation global warming temperature gradient trend analysis warming wind velocity Argentina
description	There are different methodologies to compute daily mean temperatures (DMT), including averaging the 24-hourly temperature values, readings at specific times throughout the day or simply averaging the minimum and maximum daily temperatures. This study provides an intercomparison of some of such methods applied to six meteorological stations in Argentina with continuous hourly measurements for a period of more than 24 years. Results show that differences arising from the various methodologies are largely dependent on the local weather conditions, particularly those related to cloud cover and wind intensity, while the role of air moisture is less important. Furthermore, trends derived from DMT estimates using different methodologies are found to be highly sensitive to the chosen method. In fact, statistically insignificant trends could be significant should other methodologies to calculate DMT had been used. This result could be of importance for diverse scientific areas such as agriculture or climate warming studies. © 2016 Royal Meteorological Society
author	Saurral, Ramiro Ignacio
author_facet	Saurral, Ramiro Ignacio
author_sort	Saurral, Ramiro Ignacio
title	A cautionary note on the computation of daily mean temperatures and their trends
title_short	A cautionary note on the computation of daily mean temperatures and their trends
title_full	A cautionary note on the computation of daily mean temperatures and their trends
title_fullStr	A cautionary note on the computation of daily mean temperatures and their trends
title_full_unstemmed	A cautionary note on the computation of daily mean temperatures and their trends
title_sort	cautionary note on the computation of daily mean temperatures and their trends
publishDate	2017
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08998418_v37_n9_p3743_Saurral http://hdl.handle.net/20.500.12110/paper_08998418_v37_n9_p3743_Saurral
work_keys_str_mv	AT saurralramiroignacio acautionarynoteonthecomputationofdailymeantemperaturesandtheirtrends AT saurralramiroignacio cautionarynoteonthecomputationofdailymeantemperaturesandtheirtrends
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A cautionary note on the computation of daily mean temperatures and their trends

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