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A Simplistic Approach for Assessing Hydroclimatic Vulnerability of Lakes and Reservoirs with Regulated Superficial Outflow
(2019-07-24)
K. Demertzi
;
D. Papadimos
;
V. Aschonitis
;
D. Papamichail
This study proposes a simplistic model for assessing the hydroclimatic vulnerability of lakes/reservoirs (LRs) that preserve their steady-state conditions based on regulated superficial discharge (Qd) out of the LR drainage basin. The model is a modification of the Bracht-Flyr et al. method that was initially proposed for natural lakes in closed basins with no superficial discharge outside the basin (Qd = 0) and under water-limited environmental conditions {mean annual ratio of potential/reference evapotranspiration (ETo) versus rainfall (P) greater than 1}. In the proposed modified approach, an additional Qd function is included. The modified model is applied using as a case study the Oreastiada Lake, which is located inside the Kastoria basin in Greece. Six years of observed data of P, ETo, Qd, and lake topography were used to calibrate the modified model based on the current conditions. The calibrated model was also used to assess the future lake conditions based on the future climatic projections (mean conditions of 2061-2080) derived by 19 general circulation models (GCMs) for three cases of climate change (three cases of Representative Concentration Pathways: RCP2.6, RCP4.5 and RCP8.5). The modified method can be used as a diagnostic tool in water-limited environments for analyzing the superficial discharge changes of LRs under di erent climatic conditions and to support the design of new management strategies for mitigating the impact of climate change on (a) flooding conditions, (b) hydroelectric production, (c) irrigation/industrial/domestic use and (d) minimum ecological flows to downstream rivers. Hydrology 6(3), 61. https://doi.org/10.3390/hydrology6030061
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Enhanced wetland monitoring, assessment and indicators to support European and global environmental policy
(2019-07-09)
D. Abdul Malak (et all)
Between 2015 and 2018, the Horizon 2020 SWOS project has supported policies by developing and applying science-based methods that aim at standardising wetland definition, identification, delimitation, and delineation. The primary outputs of the project are satellite-based monitoring tools (SWOS toolbox1, GEO-Wetlands Community Portal2) to enable improved wetland assessment and monitoring capabilities, as well as their application in management and reporting at different scales, and by different users. In addition, the SWOS project includes a capacity-building component to facilitate the uptake of the tools by users. This report presents the project’s technical results (Chapter 3), as well as applied examples of the improved capabilities for wetland conservation and restoration needs (Chapter 4). These two chapters are preceded by an introduction (Chapter 1) and a review of the global and EU policies related to wetlands, including a perspective on the post-2020 agenda (Chapter 2).
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MAES Service Case: Wetland ecosystem condition mapping (v.1.0)
(2019-07-05)
C. Schröder
;
D. Abdul Malak
;
A. Sánchez
;
E. Fitoka
;
L. Hatziiordanou
The MAES working group is preparing the workshop on “ecosystem condition mapping” to streamline the efforts done so far with regards to the mapping and assessment of the condition of Europe’s ecosystems. The MAES WG has requested directly to SWOS partners a specific document to support the mapping and assessing wetland ecosystem condition for this workshop. This document shall highlight the different elements to take into account for the mapping and assessment of wetland ecosystems with the aim of supporting Member States and the European Commission in their efforts to better describe the situation of wetland ecosystems in Europe. This document represents the major output of the MAES Service case that shall show how SWOS outputs are useful to support the MAES WG with regards to wetland ecosystem mapping and assessment.
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Assessing lake vulnerability to climate change using the coupled MIKE SHE/MIKE 11 model: Case study of Lake Zazari in Greece. Paper presented at 11th World Congress on Water Resources and Environment (EWRA 2019) “Managing Water Resources for a Sustainable Future”. Madrid, Spain, 25-29 June 2019
(2019-07-04)
D. Papadimos
If the worst predictions of general circulation models (GCMs) about climate change become true, then lakes will hardly manage to maintain their current conditions (Zhang et al. 2016) especially in regions, which have been identified as climate change hot spots such as the countries of Mediterranean Basin (Loizidou et al. 2016) from which Greece is of special interest since it has 54 lakes/reservoirs of 0.5 km2 minimum size. The hydrological models are important tools for assessing the water balance components of lakes and for supporting the design of water management strategies. Depending on the modelling purposes and the specific attributes of a lake, different types of models and different levels of model complexities can be selected, starting from complex models such as MIKE SHE (Abbott et al. 1986), WATLAC (Zhang 2011) or using simpler methods (Yang et al. 2018). The MIKE model is among the most integrated models and has been used in the past for similar cases (Singh et al. 2010), while in combination with the future climate projections of general circulation models (GCMs), can be used to investigate lake conditions under future climate scenarios. The aim of this study is to present an application for analyzing the vulnerability of a lake to climate change using the MIKE SHE/11 model using as a case study the Lake Zazari in Greece.
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Phytosociological analysis of the aquatic vegetation of the main Greek freshwater lakes. Poster presentation in 11th Symposium for European Freshwater Sciences. Zagreb, June 30 – July 5, 2019
(2019-07-03)
V. Tsiaoussi
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Freshwater habitats in Greece: Crosswalks between the Habitats and Water Framework Directives. Poster presentation in 11th Symposium for European Freshwater Sciences. Zagreb, June 30 – July 5, 2019
(2019-07-03)
E. Hadjicharalampous
;
V. Tsiaoussi
Freshwater habitats are important biodiversity features in eastern Mediterranean region. Greece hosts nine freshwater habitat types of Annex I to Habitats Directive (HD); four standing and five running waters. Almost all freshwater habitats are also found in inland surface water bodies designated by the Water Framework Directive (WFD).
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Indicators for mapping and assessment of ecosystem condition and of the ecosystem service habitat maintenance in support of the EU Biodiversity Strategy to 2020
(2019-06-28)
L. Hatziiordanou
;
E. Fitoka
;
E. Hadjicharalampous
A systematic approach to map and assess the “maintenance of nursery populations and habitats” ecosystem service (ES) (hereinafter called “habitat maintenance”) has not yet emerged. In this article, we present an ecosystem service framework implementation at landscape level, by proposing an approach for calculating and combining a series of indicators with spatial modelling techniques. Necessary conceptual elements for this approach are: a) ecosystem condition, b) supply and demand of the targeted ecosystem service and c) spatial relationships between the Service Providing Units (SPU) and the Service Connecting Units (SCU). Ecosystem condition is quantified and mapped based on two indicators, the Biodiversity State and the Anthropogenic Impact. Quantification and mapping of supply and demand are based on the hypothesis that high supply can be activated in strictly protected areas and that a demand is localised in the Natura 2000 sites (N2K), considering them as the Service Benefit Areas (SBA). Wetlands are assessed as SCU between the SBA and the landscape areas where the habitat maintenance ES is supplied. By assessing wetlands as SCU, we intent to highlight their role as biodiversity stepping stones and as green infrastructures. Overall, we conclude that the EU biodiversity policy demand for no net loss and for a coherent N2K network can be met by enhancing the delivery of the habitat maintenance ES. This approach can assist policy-makers in prioritisation of conservation and restoration targets, in line with the EU biodiversity strategy to 2020 and the preparation of the post-2020 Strategy. One Ecosystem 4: e32704. https://doi.org/10.3897/oneeco.4.e32704
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Επεξεργασία με κατάλληλες στατιστικές μεθόδους δεδομένων βλάστησης με σκοπό την κατάρτιση καταλόγου υγροτοπικών φυτικών ειδών για την ελληνική επικράτεια
(Ελληνικό Κέντρο Βιοτόπων-Υγροτόπων (ΕΚΒΥ), 2018-12-17)
Ι. Τσιριπίδης
Σκοπός του παρόντος έργου είναι η στατιστική-αριθμητική ανάλυση δεδομένων βλάστησης από τον ελληνικό χώρο έτσι ώστε να ταξινομηθούν φυτικά taxa της ελληνικής χλωρίδας σε μια από τις πέντε κατηγορίες δεικτών υγροτοπικής βλάστησης που διέκρινε ο Reed (1988): α) τα υποχρεωτικά υγροτοπικά (με πιθανότητα εμφάνισης σε υγροτόπους μεγαλύτερη του 99%), β) τα προαιρετικά υγροτοπικά (με πιθανότητα εμφάνισης σε υγροτόπους από 67 έως 99%), γ) τα προαιρετικά (με πιθανότητα εμφάνισης σε υγροτόπους από 34 έως 66%), δ) τα προαιρετικά χερσαία (με πιθανότητα εμφάνισης σε υγροτόπους από 1 έως 33%) και ε) τα χερσαία (με πιθανότητα εμφάνισης σε υγροτόπους μικρότερη από 1%).
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HeLM: a macrophyte-based method for monitoring and assessment of Greek lakes
(2018-10-29)
V. Tsiaoussi
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Χάρτης Βαθυμετρίας λίμνης Χειμαδίτιδας
(Ελληνικό Κέντρο Βιοτόπων-Υγροτόπων (ΕΚΒΥ), 2018-10-18)
Α. Αποστολάκης
;
Χ. Δουλγέρης
Ο παρών χάρτης εκπονήθηκε στο πλαίσιο του Εθνικού Δικτύου Παρακολούθησης της ποιότητας και της ποσότητας των υδάτων των λιμνών (ΚΥΑ Αριθμ. οικ. 140384/2011) που υλοποιείται από το Ελληνικό Κέντρο Βιοτόπων - Υγροτόπων, υπό τον συντονισμό και επίβλεψη της Ειδικής Γραμματείας Υδάτων. Χρηματοδότηση: Ταμείο συνοχής και εθνικοί πόροι - Επιχειρησιακό Πρόγραμμα Υποδομές Μεταφορών, Περιβάλλον και Αειφόρος Ανάπτυξη 2014 - 2020. Προτεινόμενη βιβλιογραφική αναφορά: Αποστολάκης Α. και Χ. Δουλγέρης. 2017. Χάρτης Βαθυμετρίας λίμνης Χειμαδίτιδας. Ελληνικό Κέντρο Βιοτόπων-Υγροτόπων (ΕΚΒΥ). Κλίμακα 1:15.000.

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