Research

  • Advances in homogenisation methods of climate series: an integrated approach HOME

    Long instrumental climate records are the basis of climate research. However, these series are usually affected by inhomogeneities (artificial shifts), due to changes in the measurement conditions (relocations, instrumentation and others).As the artificial shifts often have the same magnitude as the climate signal, such as long-term variations, trends or cycles, a direct analysis of the raw data series can lead to wrong conclusions about climate change.

    In order to deal with this crucial problem many statistical homogenisation procedures have been developed for detection and  correction of these inhomogeneities. At present only a limited number of publications intercompare some common methods and their impact on the climate record.The large number of different methods could be seen as a weakness in the science and is a challenge for the climatological  community to address.

    There is therefore a need for a coordinated European initiative in order to produce standard methods designed to facilitate such comparisons and promote the most efficient methods of homogenisation.

    The Action's main objective is to achieve a general method for homogenising climate and environmental datasets.The method will be derived from the most adapted statistical procedures for detection and correction of varying parameters at different space and time scales.

  • Stable Isotopes in Biospheric-Atmospheric-Earth System Research SIBAE

    Predicting impacts of global change on the Earth system requires detailed understanding of interactions between biota and biogeochemical processes in different environments and management regimes. Stable isotopes are a powerful tool for studying such interactions in natural and managed ecosystems, offering insights beyond classical methodologies. COST Action ES0806 SIBAE As integrative, coordinated European platform for the use of stable isotopes in biosphere-atmosphere-Earth system...

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  • Contribution of Emission Sources on the Air quality of the Port-cities in Greece and Italy (CESAPO)

    The port areas are poles for many human and commercial activities. They are economic centres and transport hubs, that bring together different transport modes (sea, road transport etc) and also industrial activities. Ports can be seen as an opportunity for social and financial development. However, their potential should be exploited in a sustainable manner. The Mediterranean Sea represents one of the natural stages for many human, commercial and industrial activities. During the last...

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  • Direct Normal Irradiance Nowcasting Methods for Optimized Operation of Concentrating Solar Technologies, DNICast

    ABOUT DNICAST Concentrating solar technologies (CST) have proven to be very efficient sources of clean power for the electrical grid. CST include thermodynamic machines, such as the concentrating solar power (CSP: parabolic troughs, solar towers, Fresnel collectors, parabolic dishes…), or concentrating photovoltaics (CPV). The efficient operation of CST requires reliable forecasts of the incident irradiance for two main reasons: - First , to yield a better management of the...

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  • MENA Hybrid Solar System

    Energy demand in all MENA countries is rising 5–10% pa. Most MENA countries satisfy their energy demand with fossil resources despite the fact that there is an excellent availability and quality of solar radiation. Yet the implementation of renewable energies in the MENA region is developing slowly. One reason for this is among others low confidence in the base load capacity of renewables. This project aims to support the implementation of solar energy systems in the MENA region by following...

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  • Identification of nitrogen isotope sources in precipitation using source-apportionment methodologies

    As of 8th June 2018, the LAPUP signed a new research contract with the Isotope Hydrology Section of the International Atomic Energy Agency, entitled "Identification of nitrogen isotope sources in precipitation using source-apportionment methodologies". The project is part ofthe Coordinated Research Program of the IAEA "Global Monitoring of Nitrogen Isotopes in Atmospheric Waters"; it will be concluded on May 28, 2021.

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850 hPa isobaric maps processed database

You can download the image proceeded database used in the experiments described in our paper

Zagouras A., Argiriou A.A., Economou G., Fotopoulos S., Flocas H.A., ‘Weather Maps Classification over Greek domain based on Isobaric Line Patterns: A Pattern Recognition Approach’, Theoretical and Applied Climatology, in press, online 14 March 2013. doi: 10.1007/s00704-013-0870-8

from <here>. You can use it for educational non-commercial purposes, by citing the paper mentioned above. The dataset consists of 296 binary JPEG images, with a resolution of 354x286 pixels, organized into 8 folders corresponding to the 8 different circulation types over Greece. Each image shows the trace of the characteristic isobaric line of each weather map. More details are provided in the paper.