Community Research and Development Information Service - CORDIS

Final Report Summary - GHG-LAKE (Towards a comprehensive understanding of transport of energy and greenhouse gases in lacustrine ecosystems.)

GHG-LAKE programme has build a basis for long-term collaboration between the leading EU, Russian and US research organizations in the area of limnology, GHGs monitoring and modelling and climate change research in order to achieve new scientific results and breakthroughs. The proposed programme was interdisciplinary and the expected results touched, in particular, the environmental sciences, limnology, biogeochemistry and micrometeorology research communities.

The project brought together seven partners from two EU Countries and two Third Countries:

• University of Helsinki, Finland (Coordinator);
• University of Stockholm, Sweden (Beneficiary);
• University of Linkoping, Sweden (Beneficiary);
• Lomonosov Moscow State University, Russia;
• Northern Water Problems Institute of the Karelian Scientific Center of the RAS, Russia
• A.M. Obukhov Institute of Atmospheric Physics RAS, Russia;
• University of California Santa Barbara, United States,

The main objective of GHG-LAKE project was to obtain better understanding of energy and greenhouse gases (methane and carbon dioxide) budgets in lake ecosystems at high-latitude, which are potentially most prone to on-going and future climate changes.
Factors controlling the carbon cycles were investigated by means of intensive field measurements and process based modelling.


This program focused on four research aspects organized in Work Packages:

WP1 Gas exchange processes: We have developed accurate models of the gas transfer coefficient which take into account the turbulence at the air-water interface, as well as we investigated physical processes controlling the vertical movement of greenhouse gases from different strata in the water column to the air-water interface.

WP2 Carbon cycle and greenhouse gases (GHG) flux database: We developed a web-based platform finalized to collect and organize metadata and available information regarding methods, study design, available field sites, publication, and interactive discussion forums. Several datasets have been collected and published.

WP3 Methodological aspects and uncertainties of flux measurements: By using intensive field campaigns and exiting datasets, we compared and evaluated different methods for direct and indirect estimates of gas fluxes over inland waters, including measurement uncertainties. Guidelines on field measurement setup and data processing have been published.

WP4 Lake and Large Eddy Simulation (LES) modeling: First, a 1-dimensional thermodynamic model LAKE is being developed to account for the key processes relevant to methane and CO2 emissions to the atmosphere. The LAKE model was verified versus extensive field data on water temperature, gas concentrations, energy and gas fluxes from several lakes, collected in other WPs. Second, we have advanced model tools for flux footprint calculation in stable boundary layer, using a new LES - Lagrangian stochastic modeling numerical approach.

Conclusions and exploitation of results

GHG-LAKE made a substantial contribution to create the necessary monitoring and modelling framework related to aquatic systems. Related to methodological, technological and data aspects, GHG-LAKE provides operational guidelines for global network like GLEON, European environmental infrastructures, like ICOS and Danubius, as well as for national monitoring networks. Societal benefits include improved water bodies management and knowledge on how the climate regulates the water quality, and its interactions with carbon cycle. The established web portal and learning tools increase the public awareness regarding natural GHG emissions, as well as the developed data-products (database) can be used for emission inventory purposes, supporting future GHGs mitigation strategies especially in high latitude ecosystems which are most prone to climate changes. First results are obtained with the new lake parameterizations implemented in land surface scheme, opening the ground to more reliable model simulation especially in regions largely covered by inland waters. The researcher mobility and exchange has contributed significantly to constructing new and enhancing existing networks of beneficial international collaborations between the different organisations. Finally the high level of interdisciplinarity of GHG-LAKE, including partnership between experts in meteorology, biogeochemistry, limnology, environmental science, engineering and computational mathematics, has had a synergistic effect on new findings in carbon cycling in natural ecosystems and in improving present models for lake ecosystems.

Project website:

Contact details:
Dr Ivan Mammarella (GHG-LAKE Coordinator)
University of Helsinki
Department of Physics
P.O. Box 68, Exactum, room D116
FI 00014 Helsinki (Finland)

Phone: +358 50 3584156

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Life Sciences
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