Management of the Neman River basin with account of
Transcription
Management of the Neman River basin with account of
Vladimir Korneev (Belarus) Egidijus Rimkus (Lithuania) Edvinas Stonevičius (Lithuania) Audrius Šepikas (Lithuania) Nickolai Denisov (Switzerland) Aliaksandr Volchak (Belarus) Aliaksandr Pakhomau (Belarus) Lubov Hertman (Belarus) Ivan Bulak (Belarus) Alena Bahadziazh (Belarus) Vladimir Anoufriev (Belarus) Ina Rusaya (Belarus) Givanni Crema (Italy) Paul Buijs (Netherlands) Management of the Neman River basin with account of adaptation to climate change The main results The programme of pilot projects on adaptation to climate change in transboundary basins under the UNECE Convention on the Protection and Use of Transboundary Watercourses and International Lakes (Water Convention) has started in 2010 The pilot projects mainly focus on developing adaptation strategies which lay the ground for further action. Main aim of the project is to improve integrated river basin management and transboundary cooperation in times of a changing climate in the Neman river basin. The project aims to strengthen the capacity to adapt to climate change of the countries sharing the Neman river through supporting dialogue and cooperation on the needed steps to design an adaptation strategy in the transboundary context. It will aim to reach a common understanding on future water availability and water use taking into account possible climate change impacts. “One of the priority areas in the field of environment during the Lithuanian Presidency will be climate change issues. They are relevant to the whole of Europe, including our country as well”, Minister of Environment of Lithuania Valentinas Mazuronis http://www.am.lt/VI/en/VI/article.php3?article_id=405 Analysis of changes of meteorological and hydrological characteristics for the period from 1961 to 2010 Meteorological and hydrological data collection Meteorological and hydrological information which was used: (daily, monthly, seasonal, annual values) Analysis period: 1961-2010 Temperature/precipitation: Data from 23 stations (8 stations in Belarus, 15 stations in Lithuania) Water discharge: Data from 25 stations (12 stations in Belarus, 13 stations in Lithuania) Additional information necessary for hydrological modeling: wind speed, humidity, sunshine duration Assessment of current status of water resources in the Niemen River Basin Assessment of current status of water resources in the Niemen River Basin Detected changes of meteorological and hydrological characteristics Seasonal air temperature (0С) in 1961 - 2010 Monthly air temperature changes (1986-2010 minus 1961-1985) Assessment of the change of temperature (0C) in the Niemen River Basin (1986-2010) - (19611985): on average +0.9 0 C 3.0 2.5 2.3 2.0 1.4 1.5 1.4 1.4 0.8 1.0 0.6 0.5 0.3 0.2 0.1 0.0 0.0 0.0 r r be ec em D ov em be r N ct ob e O te m be r st Se p A ug u y Ju l Ju ne ay M il pr A ch ar M ar ru Fe b nu a ry y -0.5 Ja Months (difference, 0C) 2.5 Change of annual air temperature (1986-2010 minus 1961-1985) Change of seasonal air temperature (1986-2010 minus 1961-1985) Air temperature in Vilnius 1778-2012 0,015 °C/year 0,010 0,005 0,000 1 2 3 4 5 6 7 8 9 10 11 12 -0,005 Annual dynamic Monthly trends Moving difference: the last 25 years period minus previous 25 years period Seasonal precipitation amount (0С) in 1961 - 2010 Monthly precipitation changes (%) (1986-2010 minus 1961-1985) Assessment of the change of precipitation (%) in the Niemen River Basin (1986-2010) - (19611985): on average +10.9% 50.0 38.5 31.6 30.0 18.1 20.0 11.7 9.4 10.0 8.4 3.2 1.6 5.6 4.7 0.0 -10.0 -9.3 be r r D ec em be ov em N O ct ob er te m be r t Se p ug us A ly Ju Ju ne M il pr A ch M ar y Fe br u ar y ar nu ay -14.0 -20.0 Ja Months (difference, %) 40.0 Change of annual precipitation sum (%) (1986-2010 minus 1961-1985) Change of seasonal precipitation sum (%) (1986-2010 minus 1961-1985) Assessment of current status of water resources in the Niemen River Basin Monthly runoff change (%) (1985-2009 minus 1961-1984) Assessment of the change of runoff (%) in the Niemen River Basin (1985-2009) - (19611984): average annual +2.7%; minimum (summer-autumn) +7.2%; minimum (winter) +17.5%; maximum (spring) -27.4% 50 42.0 44.2 30 20 6.7 10 5.9 2.9 6.9 5.7 0.9 0.4 0 -1.5 -5.2 -10 -20 -19.9 be r r D ec e m be ov em O ct ob e r N Se pt em be r t ug us A ly Ju ne Ju M ay pr il A M ar ch y Fe br ua r nu ar y -30 Ja Months (difference, %) 40 Hydrograph shape at the Dubysa (a) and the Nemunas (b) rivers during two parts of the study period 1960-1984 and 1985-2009 Seasonal runoff change (%) (1985-2009 minus 1961-1984) Spring flood maximum SummerAutumn minimum Winter minimum The main features of changes Statistically significant increase in annual, winter and summer temperature (largest changes were observed in January); Statistically significant increase in winter precipitation; Maximum spring flood discharge decreased and the minimum winter flow increased statistically significant in large part of territory; Peak of spring flood and the dates of minimum winter flow tends occur earlier in the whole basin area. Near-term future (2021-2050) projections Climate projections for the whole Nemunas basin was made with using CCLM model outputs The regional CCLM model runs are driven by the initial and boundary conditions of the Global Circulation Model ECHAM5/MPI-OM. Realizations of the ECHAM5/MPI-OM model were dynamically downscaled to a smaller grid using the CCLM model. Two greenhouse gas emission scenarios were used A1B (relatively high-emission scenario) B1 (low-emission scenario) Near-term forecast 2020-2050 was made Two different hydrological models were used for the purpose to foreseen runoff changes: Lithuanian side used WatBal model; Belarusian side used hydrology-climatic calculations model (HCCM) based on the The regional CCLM model covers a large part of joint solution of the equations of water and the European territory with a high spatial heat-energy balances resolution (20 km 20 km). Climate projections in the Neman River basin The main features of foreseen changes Mean annual air temperature in the basin territory will increase by 1,7 °C according to A1B scenario and 1,4 according to B1 climate scenario. For all months of the year the air temperature rise is projected. The largest changes under both climate scenarios will likely occur during the cold season of year. The annual precipitation amount will increase by 73 mm according to A1B scenario and by 28 mm according to B1 scenario. The largest positive changes are foreseen for winter and spring according to A1B scenario, while the most rapid rise are predicted for autumn according to B1 (negative changes are possible in some months). CCLM model outputs data foresee decrease in sunshine duration in the first half of the 21st century (relatively the largest sunshine duration decrease will be observed during the winter months). Due to cold season air temperature rise and changes in precipitation composition snow cover parameters should decline in the future. Air temperature projections Assessment of the future change of temperature in the Niemen River Basin until 2035 (mean value of 2021-2050). On average: A1B +1.7 0C; B1 +1.36 0C 3.0 2.8 2.8 A1B scenario 2.8 B1 scenatio 2.5 2.4 2.2 2.1 1.8 1.7 1.7 1.6 1.5 1.5 1.4 1.3 1.3 1.1 1.0 1.0 0.8 0.8 0.7 0.5 0.9 0.7 0.7 0.3 D ec em be r be r N ov em er ct ob O Se pt em be r A ug us t Ju ly Ju ne ay M A pr il ar ch M Fe br ua ry ar y 0.0 Ja nu change, 0C 2.0 2.6 Precipitation amount Assessment of the future change of precipitation in the Niemen River Basin until 2035 (mean value of 2021-2050). On average: A1B +6.51%; B1 +2.42% 20.0 A1B scenario B1 scenatio 15.0 14.0 12.1 change, % 9.5 9.1 10.0 6.7 ` 6.7 6.4 5.1 3.6 2.9 4.4 2.2 1.9 7.2 6.9 6.8 5.0 5.0 9.3 2.6 2.5 0.0 -0.7 -5.0 -4.3 -4.8 D ec em be r be r N ov em ct ob er O r Se pt em be A ug us t Ju ly ay M A pr il M ar ch ry Fe br ua ua ry Ja n Ju ne -8.0 -10.0 ANNUAL A1B - scenario B1 - scenario Winter A1B - scenario B1 - scenario Spring A1B - scenario B1 - scenario Summer A1B - scenario B1 - scenario Autumn A1B - scenario B1 - scenario Projections of runoff changes in the Niemen River basin Modeling results show that forecasted runoff changes in the near term future are very similar with observed during the last 50 years. According modeling results: Mean annual runoff will increase insignificantly (decrease in Belarusian part and increase in Lithuanian part of the basin is very likely). The projected maximum spring flood runoff will decrease in the majority of Nemunas basin. The decrease of maximum monthly runoff is likely to be related to warmer winters with more frequent thaws. The earlier start of spring flood is also very likely. As the consequence inundation risk will generally decrease in the major part of the basin. Minimum winter flow will increase. It can be related to the earlier start of spring, increased winter precipitation and increased frequency of thaws. Predicted summer changes are insignificant in the large part of the basin. Increase in northern part and slight decrease in the southern part of the basin is modeled. Drought probability can increase in the second part of warm period of year. Observed and predicted runoff changes made using WatBal hydrological model 1.00 0.90 Merkys 0.80 Observed 0.70 A1B 0.60 B1 0.50 Jan Feb Mar Apr May Jun Jul Ags Spt Oct Nov Dec Jan 0.40 0.90 0.80 0.70 Observed 0.50 A1B 0.40 B1 0.30 0.20 Jan Feb Mar Apr May Jun Jul Ags Spt Oct Nov Dec Jan Schara 0.60 Runoff forecast – Belarusian model (annual) A1B - scenario B1 - scenario Runoff forecast – Lithuanian model (annual) A1B - scenario B1 - scenario Runoff forecast – Belarusian model (winter) A1B - scenario B1 - scenario Runoff forecast – Lithuanian model (winter) A1B - scenario B1 - scenario Runoff forecast – Belarusian model (summer) A1B - scenario B1 - scenario Runoff forecast – Lithuanian model (summer) A1B - scenario B1 - scenario Assesment of the runoff change in the Niemen River Basin on the territory of Belarus tale into account climate change (A1В scenario) and forecasted change in water use until 2035 y 50 39.8 40 34.5 change of natural runoff 37.7 change due to water use scenario 33.5 total change of runoff 30 20.0 20 18.4 22.0 20.3 15.5 11.9 17.3 14.9 15.9 10.7 10 6.1 4.6 ` 0 -1.6 -0.6 -1.2 -1.7 -1.0 -2.1 -10 -2.7 -2.8 -1.3 -1.5 -2.1 -2.9 -5.2 -8.1 change, % -13.1 -20 -30 -15.8 -14.5 -12.8 -15.0 -17.3 Assesment of the runoff change in the the Niemen River Basin on the territory of Belarus tale into account climate change (В1 scenario) and forecasted change in water use until 2035 y 50 9.7 10 4.6 10.5 8.0 D ec em be r N ov em be r 29.4 O ct ob er change of natural runoff Se pt em be r Ju ne M ay A pr il 20.3 20 38.9 A ug us t 30 M ar ch Ja nu ar y 40 Fe br ua ry 41.0 Ju ly -40 change due to water use scenario total change of runoff 26.4 19.2 19.1 9.3 6.8 ` 3.0 4.7 6.9 17.8 5.4 0 -1.6 -1.2 -1.7 -10 -0.6 -5.1 -5.7 -1.0 -2.1 -11.5 chdnge, % -20 -30 -2.7 -2.8 -14.2 -14.3 -1.3 -1.5 -2.1 -2.9 -17.1 D ec em be r be r em N ov O ct ob er r te m be Se p A ug us t Ju ly Ju ne ay M A pr il h ar c M ry Fe br ua Ja nu ar y -40 Forecasted water use for the industry of Belarus will grow by 0.5-2.0% per year in case of optimistic scenario of economic development which will also have slight impact on runoff regime. However, it was determined that the impact of climate change will be more important on runoff in the Neman River Basin on the territory of Belarus in comparison with forecasted impact of water use changes. Pilot implementation of common Lithuanian and Belarusian approach for assessment of water quality of surface waters in the entire Niemen River Basin taking into account Lithuanian experience for selected list of water quality monitoring stations (WQMS) and for selected list of water quality parameters including preparation a series of basin-wide maps regarding classification of surface waters quality. N o . Criteria for ecological status classes of rivers Quality element Parameter River type High Good Moderate Poor Bad 1 NO3-N, mg/l 1-5 <1,30 1,30-2,30 2,31-4,50 4,51 10,00 >10,00 2 NH4-N, mg/l 1-5 <0,10 0,10-0,40 0,41-0,8 0,81-1,5 >1,5 3 NO2-N, mg/l 1-5 <0,01 0,01-0,02 0,0210,05 0,0510,08 >0,08 PO4-P, mg/l 1-5 <0,050 0,0500,090 0,0910,180 0,1810,400 >0,400 Pt, mg/l 1-5 <0,100 0,1000,140 0,1410,230 0,2310,470 >0,470 BOD7, mg/l 1-5 <2,30 2,30-3,30 3,31-5,00 5,01-7,00 >7,00 Organic and oxidizable matter Chemical oxygen demand (bichromate), mg/l 1-5 <30 30,1-40 40,1-60 60,1-80 >80 Oxygenati on O2, mg/l 1, 3, 4, 5 >8,50 8,50-7,50 7,49-6,00 5,99-3,00 <3,00 O2, mg/l 2 >7,50 7,50-6,50 6,49-5,00 4,99-2,00 <2,00 Nutrients 4 5 General data 6 7 8 9 Examples of implementation of common Lithuanian and Belarusian approach for assessment of water quality of surface waters with main point sources of pollutions on the territory of Belarus Examples of implementation of common Lithuanian and Belarusian approach for assessment of water quality of surface waters with main point sources of pollutions on the territory of Belarus Analysis of the monitoring systems in the Neman River Basin and elaboration of proposals to optimize the systems with account of climate change Summary of proposed intervention for the upgrade and expansion of the Neman RB Hydrometeorological monitoring and Early Warning system (Giovanni Crema and Inna Rusaya) Development of the common information platform (Internet database), containing data on water resources management and adaptation to climate change for the Neman River basin countries. http://www.cricuwr.by/neman/ Development of the common information platform (Internet database), containing data on water resources management and adaptation to climate change for the Neman River basin countries. http://www.cricuwr.by/neman/ Thermal and water quality variations in river Neman (upstream of Grodno) 380 Maximum average monthly temperature of air 360 340 Maximum temperature of water 320 concentration, mg/l 300 Dissolved Oxigen 280 260 Mineralization 240 220 year 200 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 Correlations tair - tw ater y = 0.0082x2 - 0.5523x + 16.753 0 26 25 24 11.5 2 R = 0.2261 11.0 10.5 23 22 10.0 21 20 9.0 8.5 8.0 7.5 0 Maximum temperature of water, C 27 26 25 24 23 22 7.0 21 22 21 20 19 18 17 16 15 14 12 20 Maximum average monthly temperature of air, 0C 13 19 R2 = 0.6143 14 18 15 17 2 y = -0.1653x + 6.9697x - 49.652 16 16 15 17 14 18 dissolved oxigen, mg/l 9.5 19 13 27 Correlations tw ater - dissolved oxigen 12.0 temperature, C 28 13 Approach proposed 1.To select Water Quality Monitoring Stations (WQMS) on water objects closely to reference conditions (minimum affected to anthropogenic pressure). 2.Statistical calculation with analyses of statistical significance for determination correlations between air and water temperatures, between selected water quality parameters and water temperature. temperature, 0C Estimation and forecast of the future climate change impact on the water quality at the highest generalization level Estimation and forecast of the future climate change impact on the water quality at the highest generalization level 3. Theoretical calculation with use of semi-empirical formulas Estimation and forecast of the future climate change impact on the water quality at the highest generalization level Assessment of projected climate change impacts on dissolved oxigen concentration in summer in the Neman River Basin (A1B - scenario, progected in 2021–2050 to compare with 1965-2010) Neman - Grodno (upstream) Neman - Stolbcy (upstream) Vilia - Vileyka (upstream) Schara - Slonim (upstream) lake Naroch - Naroch 0.00 -0.05 -0.10 -0.15 change, mg/l -0.20 -0.25 -0.30 -0.35 -0.40 -0.45 -0.50 DO (based on observed data and statistical analysis), mg/l DO mg/l, (Weiss) -0.55 DO, mg/l, (Benson and Krause) -0.60 DO, mg/l, (Garcia and Gordon) -0.65 Average decrease of dissolved oxygen content in surface water in summer forecasted as 0.25 mg/l in Belarus due to climate change. It is comparable with forecast for Lithuania (Paul Buijs) Increase of mineralization estimated on 3-10% Correlation with water temperature and other WQPs were not found take into account climate change because other factors more significant Possible increase of nutrient and hydrobiological characteristics deterioration because of dissolved oxygen content decrease Development of the preliminary recommendation for improvement of water management in connection with climate change adaptation (draft proposals on adaptation measures for particular sectors of economy) for Belarus Water users most affected to climate change due to their depends from water supply from surface waters: Industry (19); hydroelectric power plants (11); Recreation (17); agriculture including fish industry (16) Signing of the Agreement between Belarus, Lithuania, Russian Federation and European Union and development of the Neman Water Resources Management Plan for the entire river basin will be help to solve most important challenges in adapting to climate change in the transboundary context. OUTCOMES OF THE PROJECT Climate change scenarios developed for the entire Neman River Basin; Assessment and forecast of water resources formation with account of different climate change scenarios for the entire Neman River Basin with use of Lithuanian and Belarusian models take into account economic development tendencies (for Belarus); Agreed indicators of water bodies status, along with respective criteria (values), and systems for classification of water bodies’ state and parameters; Assessment of water quality with using agreed indicators and criteria; Proposals to optimize the monitoring systems with account of climate change; Common information platform (Internet database), containing data on water resources management and adaptation to climate change for the Niemen River basin countries; Preliminary recommendation for improvement of water resources management in connection with climate change adaptation for Belarus LESSONS LEARNT First international experience in modeling and forecasting of climatic and hydrological characteristics for the entire transboundary Neman River Basin; Pilot implementation of the assessment of surface water quality with using agreed indicators and criteria. ACTIVITIES IN 2013 Presentation and discussion about main project results and about recommendation for improvement of water management in connection with climate change adaptation (two seminars: in Belarus and in Lithuania during 1-6 month of 2013). Development of common strategy of adaptation to climate change for Neman River Basin. Development of adaptation measures for particular sectors: energy, land use and planning, agriculture, urban development. Maintenance and improvement of the informational platform. Analysis and development of recommendations for improvement of the draft of the agreement between BY-RU-LT and EU. Preparation of the Monograph on results of project including recommendations for the improvement of the water management in the Neman River Basin with account of adaptation to climate change Thank you for attention
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