Autor segons l'article: Andreas Randriamarolaza, Luc Yannick; Aguilar, Enric; Skrynyk, Oleg; Vicente-Serrano, Sergio M.; Dominguez-Castro, Fernando;
Departament: Geografia
Autor/s de la URV: Aguilar Anfrons, Enrique Modesto / Randriamarolaza, Luc Yannick Andreas / Skrynyk, Oleg
Paraules clau: Variability Trends Stream flow Spatial coherence Quality control Precipitation indices Minimum temperatures Meteorological station Maximum temperature Inqc Indian-ocean Homogeneity test Homer Extreme temperature Endemism Drought characteristics Diurnal temperature ranges Daily temperatures Daily homogenization Climind Climatol Climate-change Climate trends Climate indices Climate change
Resum: This study updates knowledge on climate evolution in Madagascar from 1950 to 2018. Changes were analyzed using annual and seasonal climate indices at regional and station level. The original daily series of minimum and maximum temperature and precipitation obtained from 28 meteorological stations were quality controlled and homogenized. Thirty-seven (37) climate indices were obtained from the daily series. The results show that changes in temperature had a higher degree of spatial coherence than changes in precipitation. Trends for temperature indices were mostly significant at 0.05 level and compatible with warming. Changes in minimum temperatures were greater than those for the maximum, leading to a significant decrease in the diurnal temperature range (DTR). Warm nights increased more than warm days, (0.70 days.decade(-1)) and cold nights decreased more than cold days, (0.21 days.decade(-1)). In addition, we found more stations with significant trends for very cold nights (92.60%) than for very warm days (51.80%) but they progressed differently (decrease and increase, respectively). Station-by-station precipitation index trends were mostly non-significant at 0.05 level, and most regional precipitation index showed decreasing trends. A shift in precipitation magnitude was observed around 2000-2018, a period of intensified drying (where 70.40% of stations recorded non-significant decreasing trends). An analysis of drought characteristics (i.e., intensity, magnitude and duration) highlighted the situation, especially in the south-east at an annual timescale.
Grup de recerca: Centre en Canvi Climàtic (C3)
Àrees temàtiques: Planejamento urbano e regional / demografia Meteorology & atmospheric sciences Interdisciplinar Geociências Engenharias iii Engenharias i Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência da computação Biodiversidade Atmospheric science
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: oleg.skrynyk@urv.cat lucyannickandreas.randriamarolaza@estudiants.urv.cat enric.aguilar@urv.cat
Identificador de l'autor: 0000-0002-8384-377X
Data d'alta del registre: 2024-09-21
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://rmets.onlinelibrary.wiley.com/doi/10.1002/joc.7243
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: International Journal Of Climatology. 42 (1): 265-288
Referència de l'ítem segons les normes APA: Andreas Randriamarolaza, Luc Yannick; Aguilar, Enric; Skrynyk, Oleg; Vicente-Serrano, Sergio M.; Dominguez-Castro, Fernando; (2022). Indices for daily temperature and precipitation in Madagascar, based on quality-controlled and homogenized data, 1950-2018. International Journal Of Climatology, 42(1), 265-288. DOI: 10.1002/joc.7243
DOI de l'article: 10.1002/joc.7243
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications
Repositori URV