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Discussion papers
https://doi.org/10.5194/gmd-2019-309
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2019-309
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: model experiment description paper 17 Jan 2020

Submitted as: model experiment description paper | 17 Jan 2020

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This preprint is currently under review for the journal GMD.

Numerical study of the seasonal thermal and gas regimes of the large artificial reservoir in Western Europe using LAKE2.0 model

Maksim Iakunin1, Victor Stepanenko2, Rui Salgado1, Miguel Potes1, Alexandra Penha3,4, Maria Helena Novais3,4, and Gonçalo Rodrigues1 Maksim Iakunin et al.
  • 1Institute of Earth Sciences - ICT, University of Évora, Department of Physics, Rua Romão Ramalho 59, 7000-671 Évora,Portugal
  • 2Lomonosov Moscow State University, GSP-1, 119234, Leninskie Gory, 1, bld. 4, Moscow, Russia
  • 3Water Laboratory, University of Évora, P.I.T.E. Rua da Barba Rala Nº1, 7005-345 Évora, Portuga
  • 4Institute of Earth Sciences - ICT, University of Évora, Rua Romão Ramalho 59, 7000-671 Évora, Portugal

Abstract. The Alqueva reservoir (southeast of Portugal) being the largest artificial lake in Western Europe and strategic freshwater supply in the region is of scientific interest in terms of monitoring and maintaining the quality and quantity of water and its impact on the regional climate. To solve these tasks we conducted numerical studies of the thermal and gas regimes in the lake over the period from May 2017 to March 2019, supplemented by the data observed at the weather stations and the floating platforms during the field campaign of the ALOP (ALentejo Observation and Prediction System) project. One-dimensional model LAKE2.0 was used for the numerical studies. Being highly versatile and adjusted to the specific features of the reservoir, this parameterization is capable to simulate its thermodynamic and biogeochemical characteristics. Profiles and time series of water temperature, sensible and latent heat fluxes, concentrations of CO2 and O2 reproduced by the LAKE2.0 model were validated against the observed data and were compared with the thermodynamic simulation results obtained with the FLake model. The results demonstrated that LAKE2.0 model has good ability in capturing the seasonal variations in the water surface temperature and the internal thermal structure of the Alqueva reservoir, and satisfactorily captured the seasonal gas regime.

Maksim Iakunin et al.

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Maksim Iakunin et al.

Data sets

Atmospheric forcing dataset for Numerical study of the seasonal thermal and gas regimes of the large artificial lake in Western Europe using LAKE2.0 M. Iakunin, V. Stepanenko, R. Salgado, M. Potes, G. Rodrigues, A. Penha, and M. H. Novais https://doi.org/10.5281/zenodo.3608230

Model code and software

Atmospheric forcing dataset for Numerical study of the seasonal thermal and gas regimes of the large artificial lake in Western Europe using LAKE2.0 M. Iakunin, V. Stepanenko, R. Salgado, M. Potes, G. Rodrigues, A. Penha, and M. H. Novais https://doi.org/10.5281/zenodo.3608230

Maksim Iakunin et al.

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Latest update: 28 Feb 2020
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Short summary
The Alqueva reservoir located in the south-east of Portugal is the largest artificial reservoir in Western Europe. It was established in 2002 to provide water and electrical resources for regional needs. A complex research of this reservoir is an essential scientific task in scope of meteorology, hydrology, biology, and ecology. In this work we use two numerical models (LAKE2.0 and FLake) to assess the thermodynamic and biogeochemical regimes of the reservoir over two years of observations.
The Alqueva reservoir located in the south-east of Portugal is the largest artificial reservoir...
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