Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability

Abstract Summer lake surface water temperatures (LSWTs) have previously been shown to respond more rapidly to climatic warming compared to local summer surface air temperatures (SATs). In a global-scale analysis, we explore the factors underpinning the observation of an amplified response of summer...

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Autores principales:	R. Iestyn Woolway, Christopher J. Merchant
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f0d8f4dc0ee9487ca0ec133dea33ebc2
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spelling	oai:doaj.org-article:f0d8f4dc0ee9487ca0ec133dea33ebc22021-12-02T12:32:15ZAmplified surface temperature response of cold, deep lakes to inter-annual air temperature variability10.1038/s41598-017-04058-02045-2322https://doaj.org/article/f0d8f4dc0ee9487ca0ec133dea33ebc22017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04058-0https://doaj.org/toc/2045-2322Abstract Summer lake surface water temperatures (LSWTs) have previously been shown to respond more rapidly to climatic warming compared to local summer surface air temperatures (SATs). In a global-scale analysis, we explore the factors underpinning the observation of an amplified response of summer LSWT to SAT variability using 20 years of satellite-derived temperatures from 144 lakes. We demonstrate that the degree of amplification in inter-annual summer LSWT is variable, and is greater for cold lakes (e.g. high latitude and high altitude), which are characterised by a short warming season, and deep lakes, that exhibit long correlation timescales of temperature anomalies due to increased thermal inertia. Such lakes are more likely to display responses in excess of local inter-annual summer SAT variability. Climatic modification of LSWT has numerous consequences for water quality and lake ecosystems, so quantifying this amplified response at a global scale is important.R. Iestyn WoolwayChristopher J. MerchantNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q R. Iestyn Woolway Christopher J. Merchant Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability
description	Abstract Summer lake surface water temperatures (LSWTs) have previously been shown to respond more rapidly to climatic warming compared to local summer surface air temperatures (SATs). In a global-scale analysis, we explore the factors underpinning the observation of an amplified response of summer LSWT to SAT variability using 20 years of satellite-derived temperatures from 144 lakes. We demonstrate that the degree of amplification in inter-annual summer LSWT is variable, and is greater for cold lakes (e.g. high latitude and high altitude), which are characterised by a short warming season, and deep lakes, that exhibit long correlation timescales of temperature anomalies due to increased thermal inertia. Such lakes are more likely to display responses in excess of local inter-annual summer SAT variability. Climatic modification of LSWT has numerous consequences for water quality and lake ecosystems, so quantifying this amplified response at a global scale is important.
format	article
author	R. Iestyn Woolway Christopher J. Merchant
author_facet	R. Iestyn Woolway Christopher J. Merchant
author_sort	R. Iestyn Woolway
title	Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability
title_short	Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability
title_full	Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability
title_fullStr	Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability
title_full_unstemmed	Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability
title_sort	amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f0d8f4dc0ee9487ca0ec133dea33ebc2
work_keys_str_mv	AT riestynwoolway amplifiedsurfacetemperatureresponseofcolddeeplakestointerannualairtemperaturevariability AT christopherjmerchant amplifiedsurfacetemperatureresponseofcolddeeplakestointerannualairtemperaturevariability
_version_	1718394131159449600

Amplified surface temperature response of cold, deep lakes to inter-annual air temperature variability

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