Climate Change and the European Water Dimension - Agri ...

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These studies have documented an increase in spring water temperature (Figure VI.A.2) leading to an earlier onset of thermal stratification, a longer stratified period during summer, higher summer surface temperatures, and a trend of rising deep-water temperature. Among the lakes analysed so far in the Salzkammergut region, a high degree of synchrony (coherence) in timing of physical and chemical parameters has been established. Changes in run-off conditions may alter the residence time and the in-lake concentrations in the near future. Coherence 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 Physical Chemical Nutrients Biological Figure VI.A.3. Spatial coherence measured as Spearman correlation coefficients for groups of variables between alpine lakes in the Salzkammergut region of Austria (see also Dokulil and Teubner, 2002). 154
Case Study: Esthwaite Water, Cumbria, UK Latitude 54º18’N Longitude 2º54’E Altitude 9 m Area 1 km 2 Mean depth 7.5 m Maximum depth 15 m TP 44 μg L -1 Retention time 90 days Ice cover usually missing Stratification end Maymid-Oct. Figure VI.A.4. General view, location and general characteristics of Esthwaite Water ► Eutrophic lake in which increased flushing rate in wet and mild winters tends to wash out slower growing phytoplankton that, in turn, causes changes in the food chain. 155
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Climate Change and the European Wat
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European Commission- Joint Research
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At the 2003 Rome Informal Meeting o
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Changes in the diurnal variation of
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Fugure I.2. (a) Maximum grid covera
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century. This corresponds to a sea
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Other causes Other causes of climat
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tropospheric ozone are photochemica
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Figure. I.4. Radiative forcings and
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There are two indirect effects of a
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The projected warming is not unifor
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water towards the west Pacific caus
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Aerosols and climate change in the
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precipitation intensities have been
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Chapter III. The Hydrologic Cycle I
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Figure III.2. Long-term average ann
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Figure III.4. Projected change in s
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eduction in the rate of evaporation
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characteristics may or may not be u
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temperatures potentially lead to hi
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Chapter IV.A. Proxy indicators of C
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Mean Air Temperature (Dec.-March) [
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correlation coefficient -0.4 -0.3 -
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Chapter IV. B. The Impact of Climat
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numbers refer to water bodies bigge
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Table IV.B.2. Number of large dams*
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quality degradation and meet the in
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sufficient resolution and accuracy
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Windermere in the English Lake Dist
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their vertical structure. In partic
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have recently described a method th
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The available evidence suggests tha
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1979). In contrast, heavy rain incr
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The projected increase in the atmos
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Aulacoseira spp. favour the changed
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vertical bars are a simple measure
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values, with an upper limit of 30°
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the processes controlling, regional
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Sea level rise is partially due to
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Box # 1: The North Sea The North Se
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and organic material more rapidly t
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suggesting that climate rather than
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CO2 2- ). In turn, the alkalinity i
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looms are often associated with tox
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events of dense water through the D
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(1) Are we already observing a resp
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eastern and western side of the Nor
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Page 107 and 108: IV.D.1. Introduction Coastal lagoon
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Page 117 and 118: Chapter V.A. Climate Change and Ext
Page 119 and 120: It is realized that adaptation to c
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Page 123 and 124: member states. Moreover some agenci
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Page 127 and 128: V.B.5. Climate change and droughts
Page 129 and 130: Evacuation from forest fires at Mas
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Page 133 and 134: Drought mitigation and the involvem
Page 135 and 136: DSS-DROUGHT A Decision Support Syst
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Page 139 and 140: The quality class boundaries within
Page 141 and 142: An example of this kind of relation
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Page 149 and 150: Table V.D.2: Percentage area affect
Page 153: Lake Surface Temperature [°C] Desc
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Page 159 and 160: Case Study: Lake Erken, Sweden ►
Page 161 and 162: TP (µg l -1 ) Modelling To analyse
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Page 189 and 190: Table-VI.C.7: Main factors and cons
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Page 201 and 202: Table VI.E.1. Waterborne pathogens
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Areas behind the dikes broken in 20
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Second, the chemical is transported
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POPs exist in the atmosphere in the
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and ice have quite a low capacity t
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Table VI.F.1. Priority substances i
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22. Monteith, J.L., 1965. Evaporati
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31. Rodionov, S.N. 1994. Global and
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28. Dokulil, M.T., 2003. Algae as e
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63. Hejzlar, J., Dubrovský, M. Buc
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99. Melack, J.M., J. Dozier, C.R. G
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136. Straile, D. & Adrian, R. 2000.
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14. Blaas, M., Kerkhoven, D., and d
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60. McCleery, R. H. and Perrins, C.
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105. UNESCO 2003. The integrated st
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ecosystems and the landscape and de
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2. Carter, T.R., Saarikko, R.A., an
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24. Hydrographisches Zentralbüro 1
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European Coastal Lagoons: The Influ
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4. Bouma MJ, Sondrop HE, van der Ka
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variable trophic status: a paired l
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France GIANMARCO GIORDANI Departmen
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Chapter VI.E. Climate Change and Wa
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