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Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth.

Atlantic and Mediterranean air masses influence the climate over the Iberian System mountain range. The relatively short instrumental records in central Spain though limit any long-term assessment of these synoptic systems. We here evaluate the potential to analyze such changes using ring width data...

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Autor Principal: Dom?nguez Castro, Fernando
Formato: Artículos
Lenguaje:eng
Publicado: 2016
Materias:
ATLANTIC AND MEDITERRANEAN
SYNOPTIC DRIVERS
JUNIPER GROWTH
SPANISH
Acceso en línea:http://repositorio.educacionsuperior.gob.ec/handle/28000/3224
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spelling oai:localhost:28000-32242017-04-06T14:46:05Z Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth. Dom?nguez Castro, Fernando ATLANTIC AND MEDITERRANEAN SYNOPTIC DRIVERS JUNIPER GROWTH SPANISH Atlantic and Mediterranean air masses influence the climate over the Iberian System mountain range. The relatively short instrumental records in central Spain though limit any long-term assessment of these synoptic systems. We here evaluate the potential to analyze such changes using ring width data from Juniperus thurifera trees growing in the northwestern and southeastern regions of the Iberian System, exposed to Atlantic and Mediterranean cyclonic activity, respectively. Comparison of tree rings with regional precipitation, temperature, and Palmer Drought Severity Index (PDSI) data indicates that juniper trees contain information on late spring and early summer drought conditions. Calibration trials using spatially resolved, gridded climate data reveal that the northwestern sampling site is predominantly controlled by Atlantic weather, while the southeastern site mainly reflects Mediterranean climate patterns. The strength and position of the blocking Azores high during spring to early summer is of particular importance for the distinct growth reactions in the Iberian System. The climate signal is remarkably strong in the southeastern site, where we developed the longest and best-replicated juniper tree ring record of the Iberian Peninsula. Data from this site allowed the reconstruction of May-June PDSI variability back to the early eighteenth century, indicating severe drought (PDSI?<??9) in southeastern Spain in 1782, 1828, 1869, 1981, and 2005. The new PDSI record coheres well with historical rogation ceremony data from eastern Spain, indicating that common information on past drought events is inherent in both proxy archives. Escuela Polit?cnica Nacional https://link.springer.com/article/10.1007%2Fs00704-014-1254-4 2016-11-09T20:23:37Z 2016-11-09T20:23:37Z 2015 article Esper, Jan. et al. (2015). Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth. Theoretical and Applied Climatology. Vol.121, N?3. pp. 571-579 1434-4483 http://repositorio.educacionsuperior.gob.ec/handle/28000/3224 eng openAccess pp. 571-579
institution SENESCYT
collection Repositorio SENESCYT
biblioteca Biblioteca Senescyt
language eng
format Artículos
topic ATLANTIC AND MEDITERRANEAN
SYNOPTIC DRIVERS
JUNIPER GROWTH
SPANISH
spellingShingle ATLANTIC AND MEDITERRANEAN
SYNOPTIC DRIVERS
JUNIPER GROWTH
SPANISH
Dom?nguez Castro, Fernando
Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth.
description Atlantic and Mediterranean air masses influence the climate over the Iberian System mountain range. The relatively short instrumental records in central Spain though limit any long-term assessment of these synoptic systems. We here evaluate the potential to analyze such changes using ring width data from Juniperus thurifera trees growing in the northwestern and southeastern regions of the Iberian System, exposed to Atlantic and Mediterranean cyclonic activity, respectively. Comparison of tree rings with regional precipitation, temperature, and Palmer Drought Severity Index (PDSI) data indicates that juniper trees contain information on late spring and early summer drought conditions. Calibration trials using spatially resolved, gridded climate data reveal that the northwestern sampling site is predominantly controlled by Atlantic weather, while the southeastern site mainly reflects Mediterranean climate patterns. The strength and position of the blocking Azores high during spring to early summer is of particular importance for the distinct growth reactions in the Iberian System. The climate signal is remarkably strong in the southeastern site, where we developed the longest and best-replicated juniper tree ring record of the Iberian Peninsula. Data from this site allowed the reconstruction of May-June PDSI variability back to the early eighteenth century, indicating severe drought (PDSI?<??9) in southeastern Spain in 1782, 1828, 1869, 1981, and 2005. The new PDSI record coheres well with historical rogation ceremony data from eastern Spain, indicating that common information on past drought events is inherent in both proxy archives.
author Dom?nguez Castro, Fernando
author_facet Dom?nguez Castro, Fernando
author_sort Dom?nguez Castro, Fernando
title Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth.
title_short Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth.
title_full Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth.
title_fullStr Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth.
title_full_unstemmed Atlantic and Mediterranean synoptic drivers of central Spanish juniper growth.
title_sort atlantic and mediterranean synoptic drivers of central spanish juniper growth.
publishDate 2016
url http://repositorio.educacionsuperior.gob.ec/handle/28000/3224
_version_ 1634995119863103488
score 11,871979

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