Observed trends and changes in temperature extremes over Argentina
In this note, changes in temperature extremes over a 40-yr period are analyzed, based on daily minimum and maximum temperatures over Argentina. Trend analysis was performed on seasonal means, standard deviations, and extremes (5th and 95th percentiles) over the 1959-98 period. The strongest (positiv...
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paper:paper_08948755_v17_n20_p4099_Rusticucci2023-06-08T15:47:51Z Observed trends and changes in temperature extremes over Argentina Rusticucci, Matilde Barrucand, Mariana Graciela Correlation methods Earth atmosphere Sensitivity analysis Temperature control Temperature measurement Standard deviations Trend analysis Climate change extreme event regional climate statistical analysis temperature anomaly trend analysis Argentina South America Western Hemisphere World In this note, changes in temperature extremes over a 40-yr period are analyzed, based on daily minimum and maximum temperatures over Argentina. Trend analysis was performed on seasonal means, standard deviations, and extremes (5th and 95th percentiles) over the 1959-98 period. The strongest (positive) changes over time occurred in mean summer minimum temperature, whereas the standard deviation decreased. Mean maximum temperatures mostly decrease over time in summer over northern Argentina, but they increase in Patagonia (southern Argentina). Generally, negative trends were obtained in the number of cold nights and warm days per summer, while the number of warm nights and cold days has increased at certain locations. Patagonia shows many stations with an increasing number of warm days and nights in winter and a decreasing number of cold days and nights in summer. The summer mean temperature is more sensitive to extremes than the winter one. In summer, the increase in mean temperature is more strongly related to the increase in the number of warm days and nights than to a decrease in the number of cold days and nights. In winter, the region with the highest correlation was found in Patagonia, while in the most productive area (La Pampa, Argentina), very little or nonsignificant association exists between mean temperature and the occurrence of warm or cold days. © 2004 American Meteorological Society. Fil:Rusticucci, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Barrucand, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08948755_v17_n20_p4099_Rusticucci http://hdl.handle.net/20.500.12110/paper_08948755_v17_n20_p4099_Rusticucci |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Correlation methods Earth atmosphere Sensitivity analysis Temperature control Temperature measurement Standard deviations Trend analysis Climate change extreme event regional climate statistical analysis temperature anomaly trend analysis Argentina South America Western Hemisphere World |
spellingShingle |
Correlation methods Earth atmosphere Sensitivity analysis Temperature control Temperature measurement Standard deviations Trend analysis Climate change extreme event regional climate statistical analysis temperature anomaly trend analysis Argentina South America Western Hemisphere World Rusticucci, Matilde Barrucand, Mariana Graciela Observed trends and changes in temperature extremes over Argentina |
topic_facet |
Correlation methods Earth atmosphere Sensitivity analysis Temperature control Temperature measurement Standard deviations Trend analysis Climate change extreme event regional climate statistical analysis temperature anomaly trend analysis Argentina South America Western Hemisphere World |
description |
In this note, changes in temperature extremes over a 40-yr period are analyzed, based on daily minimum and maximum temperatures over Argentina. Trend analysis was performed on seasonal means, standard deviations, and extremes (5th and 95th percentiles) over the 1959-98 period. The strongest (positive) changes over time occurred in mean summer minimum temperature, whereas the standard deviation decreased. Mean maximum temperatures mostly decrease over time in summer over northern Argentina, but they increase in Patagonia (southern Argentina). Generally, negative trends were obtained in the number of cold nights and warm days per summer, while the number of warm nights and cold days has increased at certain locations. Patagonia shows many stations with an increasing number of warm days and nights in winter and a decreasing number of cold days and nights in summer. The summer mean temperature is more sensitive to extremes than the winter one. In summer, the increase in mean temperature is more strongly related to the increase in the number of warm days and nights than to a decrease in the number of cold days and nights. In winter, the region with the highest correlation was found in Patagonia, while in the most productive area (La Pampa, Argentina), very little or nonsignificant association exists between mean temperature and the occurrence of warm or cold days. © 2004 American Meteorological Society. |
author |
Rusticucci, Matilde Barrucand, Mariana Graciela |
author_facet |
Rusticucci, Matilde Barrucand, Mariana Graciela |
author_sort |
Rusticucci, Matilde |
title |
Observed trends and changes in temperature extremes over Argentina |
title_short |
Observed trends and changes in temperature extremes over Argentina |
title_full |
Observed trends and changes in temperature extremes over Argentina |
title_fullStr |
Observed trends and changes in temperature extremes over Argentina |
title_full_unstemmed |
Observed trends and changes in temperature extremes over Argentina |
title_sort |
observed trends and changes in temperature extremes over argentina |
publishDate |
2004 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08948755_v17_n20_p4099_Rusticucci http://hdl.handle.net/20.500.12110/paper_08948755_v17_n20_p4099_Rusticucci |
work_keys_str_mv |
AT rusticuccimatilde observedtrendsandchangesintemperatureextremesoverargentina AT barrucandmarianagraciela observedtrendsandchangesintemperatureextremesoverargentina |
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1768545933457358848 |