Pareeth, Sajid and Bresciani, Mariano and Buzzi, Fabio and Leoni, Barbara and Lepori, Fabio and Ludovisi, Alessandro and Morabito, Giuseppe and Adrian, Rita and Neteler, Markus and Salmaso, Nico (2017) Warming trends of perialpine lakes from homogenised time series of historical satellite and in-situ data. Science of The Total Environment, 578. pp. 417-426. ISSN 00489697
Full text not available from this repository.Abstract
The availability of more than thirty years of historical satellite data is a valuable source which could be used as an alternative to the sparse in-situ data. We developed a new homogenised time series of daily day time Lake Surface Water Temperature (LSWT) over the last thirty years (1986–2015) at a spatial resolution of 1 km from thirteen polar orbiting satellites. The new homogenisation procedure implemented in this study corrects for the different acquisition times of the satellites standardizing the derived LSWT to 12:00 UTC. In this study, we developed new time series of LSWT for five large lakes in Italy and evaluated the product with in-situ data from the respective lakes. Furthermore, we estimated the long-term annual and summer trends, the temporal coherence of mean LSWT between the lakes, and studied the intra-annual variations and long-term trends from the newly developed LSWT time series. We found a regional warming trend at a rate of 0.017 °C yr −1 annually and 0.032 °C yr −1 during summer. Mean annual and summer LSWT temporal patterns in these lakes were found to be highly coherent. Amidst the reported rapid warming of lakes globally, it is important to understand the long-term variations of surface temperature at a regional scale. This study contributes a new method to derive long-term accurate LSWT for lakes with sparse in-situ data thereby facilitating understanding of regional level changes in lake's surface temperature.
Item Type: | Scientific journal article, Newspaper article or Magazine article |
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Subjects: | Physical sciences > Science of aquatic & terrestrial environments > Environmental sciences Physical sciences > Science of aquatic & terrestrial environments > Climatology Physical sciences > Science of aquatic & terrestrial environments > Climatology > Climate & climate change Physical sciences > Science of aquatic & terrestrial environments > Science of aquatic & terrestrial environments not elsewhere classified |
Department/unit: | Dipartimento ambiente costruzioni e design > Istituto scienze della Terra |
Depositing User: | Fabio Lepori |
Date Deposited: | 16 Sep 2019 05:17 |
Last Modified: | 16 Sep 2019 05:17 |
URI: | http://repository.supsi.ch/id/eprint/10994 |
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