Examples on GIS application in climate adaption & river basin management KRISTIAN VESTERGAARD M.Sc. Ph.D m.ida KV@IHA.DK UNI VERSITy
KRISTIAN VESTERGAARD 1980-1985 M. Sc. study (Environmental Engineering) at University of Aalborg 1985-1988 Ph.D study (Modelling of Streams) at University of Aalborg 1988-1993 Assistant professor at University of Aalborg 1993-1996 Development of training programmes at The Freshwater Centre, Silkeborg 1993-1996 External lecturer at University of Aalborg 1996-2001 Manager, Training and Project Department, The Freshwater Centre, Silkeborg 2003-2011 External lecturer, Engineering College of Aarhus 2008-2011 Hydraulic expert at Orbicon, Aarhus 2001- Consultant, KV MiljøFormidling 2011- Associated professor, Aarhus University, ASE Foto: Bo Jarner
AU SCHOOL OF ENGINEERING 1. January 2012 IHA became a member of the AU family 3 engineering depart: Engineering School, Engineering Institute, AU Herning Bachelor of engineering (10 different main subjects) Master of Science Engineering (8 master programmes) Approx. 2500 students Located at Dalgas Avenue (from 2014 Navitas), Katrinebjerg, Gustav Wieds Vej/Hangøvej and Herning
URBAN WATER 1.-3. semester: Basic civil/construction engineering 4. semester: Climate adaption 5. semester: Internship 6.-7. semester: Water supply and waste water (UK) 7. semester: Bachelor project
A RAINY DAY IN US
CLIMATE CHANGE MORE RAIN
CLIMATE ADAPTION PLANNING 2007: Flooding in Greve 2011: Flooding in Copenhagen 2012: Flooding in Lystrup Task Force for climate adaption Climate adaption plan 2013 www.klimatilpasning.dk
MIKE URBAN & MIKE FLOOD Flood map DHM: Danish Elevation model
FLOOD MAP + VALUE MAP = FLOOD RISK MAP x =
EU DIRECTIVE ON: ASSESSMENT AND MANAGEMENT OF FLOOD RISK Adopted by EU in 2007 Planning in progres in DK In the future it will be pretty easy to make a world map
EU WATER FRAME DIRECTIVE Water frame directive was adopted by EU in 2000 DK still wait for the first river basin management plan
MAINTENANCE OF STREAMS One of the tools to reach the objectives for streams is changed maintenance Changed often equals reduced Higher water level in the stream Areas near the stream will get more wet Farmers will earn less on these areas They have to be compensated for this
HYDRAULIC MODELLING 1. Set up a hydraulic model 2. Choose a flow scenario 3. Estimate the hydraulic resistance (Manning number) at the present maintenance practice 4. Calculate the water level along the stream 5. Estimate the hydraulic resistance (Manning number) after the change in maintenance practice 6. Calculate the water level along the stream
ESTIMATING DRAINAGE CONS. 1. Setup an elevation model 2. Transfer the water levels in the stream to GIS 3. Extend these water levels to the terrain (eg. Vertical Mapper) 4. Subtract surface and water levels 5. This will give the depth of the unsaturated zone 6. This depth will determined which crops can grow at the area 7. And this will lead to the outcome
UNSATURATED DEPTH MAP Present depth of the unsaturated zone Changed maintenance scenario A Changed maintenance scenario B
CONSEQUENSE MAP x Combining the present unsaturated depth map with the future unsaturated depth map a map showing the consequenses of the changed maintenance can be made. This consequense map will form the basis for calculation of economical compensation to the farmer The method is being tested at the moment by DCE/AU