Climate and sea surface trends in the Galapagos Islands

Abstract The Galapagos Islands are a global hotspot of environmental change. However, despite their potentially major repercussions, little is known about current and expected changes in regional terrestrial climate variables and sea surface temperatures (SST). Here, by analysing existing meteorolog...

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Autores principales: Homero A. Paltán, Fátima L. Benitez, Paulina Rosero, Daniel Escobar-Camacho, Francisco Cuesta, Carlos F. Mena
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/ae075e2f77a34979aad4c30c6c2843cb
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spelling oai:doaj.org-article:ae075e2f77a34979aad4c30c6c2843cb2021-12-02T16:14:03ZClimate and sea surface trends in the Galapagos Islands10.1038/s41598-021-93870-w2045-2322https://doaj.org/article/ae075e2f77a34979aad4c30c6c2843cb2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93870-whttps://doaj.org/toc/2045-2322Abstract The Galapagos Islands are a global hotspot of environmental change. However, despite their potentially major repercussions, little is known about current and expected changes in regional terrestrial climate variables and sea surface temperatures (SST). Here, by analysing existing meteorological observations and secondary datasets, we find that the Islands have warmed by about 0.6 °C since the early 1980s, while at the same time becoming drier. In fact, the onset of the wet season is currently delayed 20 days. This drying trend may reverse, however, given that future climate projections for the region suggest mean annual precipitation may increase between 20 and 70%. This would also be accompanied by more extreme wet and hot conditions. Further, we find that regional SST has increased by 1.2 °C over the last two decades. These changes will, in turn, translate into deterioration of marine ecosystems and coral, proliferation of invasive species, and damages to human water, food, and infrastructure systems. Future projections, however, may be overestimated due to the poor capacity of climatic models to capture Eastern-Pacific ENSO dynamics. Our findings emphasize the need to design resilient climate adaptation policies that will remain robust in the face of a wide range of uncertain and changing climatic futures.Homero A. PaltánFátima L. BenitezPaulina RoseroDaniel Escobar-CamachoFrancisco CuestaCarlos F. MenaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Homero A. Paltán
Fátima L. Benitez
Paulina Rosero
Daniel Escobar-Camacho
Francisco Cuesta
Carlos F. Mena
Climate and sea surface trends in the Galapagos Islands
description Abstract The Galapagos Islands are a global hotspot of environmental change. However, despite their potentially major repercussions, little is known about current and expected changes in regional terrestrial climate variables and sea surface temperatures (SST). Here, by analysing existing meteorological observations and secondary datasets, we find that the Islands have warmed by about 0.6 °C since the early 1980s, while at the same time becoming drier. In fact, the onset of the wet season is currently delayed 20 days. This drying trend may reverse, however, given that future climate projections for the region suggest mean annual precipitation may increase between 20 and 70%. This would also be accompanied by more extreme wet and hot conditions. Further, we find that regional SST has increased by 1.2 °C over the last two decades. These changes will, in turn, translate into deterioration of marine ecosystems and coral, proliferation of invasive species, and damages to human water, food, and infrastructure systems. Future projections, however, may be overestimated due to the poor capacity of climatic models to capture Eastern-Pacific ENSO dynamics. Our findings emphasize the need to design resilient climate adaptation policies that will remain robust in the face of a wide range of uncertain and changing climatic futures.
format article
author Homero A. Paltán
Fátima L. Benitez
Paulina Rosero
Daniel Escobar-Camacho
Francisco Cuesta
Carlos F. Mena
author_facet Homero A. Paltán
Fátima L. Benitez
Paulina Rosero
Daniel Escobar-Camacho
Francisco Cuesta
Carlos F. Mena
author_sort Homero A. Paltán
title Climate and sea surface trends in the Galapagos Islands
title_short Climate and sea surface trends in the Galapagos Islands
title_full Climate and sea surface trends in the Galapagos Islands
title_fullStr Climate and sea surface trends in the Galapagos Islands
title_full_unstemmed Climate and sea surface trends in the Galapagos Islands
title_sort climate and sea surface trends in the galapagos islands
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/ae075e2f77a34979aad4c30c6c2843cb
work_keys_str_mv AT homeroapaltan climateandseasurfacetrendsinthegalapagosislands
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AT paulinarosero climateandseasurfacetrendsinthegalapagosislands
AT danielescobarcamacho climateandseasurfacetrendsinthegalapagosislands
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