1. 8 november 2019
Workshop “Climate Change Impacts on Groundwater” Summary and outcomes 2011 workshop October 13th 2011, Warsaw
Groundwater aspects in the Guidance No.24 on River Basin Management in a Changing Climate (Klaus Hinsby/Hans Peter Broers/Ronald Kozel/Elisabetta Prezioso)
which issues which are not covered with respect to groundwater?
What issues should be taken into account in RBMP’s
Organizing team
Hans Peter Broers (Eurogeosurveys)
Elisabetta Preziosi (IRSA-CNR, Italy)
Klaus Hinsby (Geus, Denmark)
Ronald Kozel (Bafu, Switzerland)
Sophie Vermooten (Deltares,the Netherlands)

2. Goals of the 2011 workshop
Aim: collect existing information and establish the knowledge base
Policy requirements and knowledge gaps of the member states
first step taking into consideration the guidance document 'River basin management in a changing climate'.
Inputs from scientific results of FPVII research projects
Genesis, WATCH, Aquaterra
national research projects which address the pressures and impacts of CC on groundwater
The workshop was used to share information and exchange views between member states and stakeholders aims to identify what the needs are for future work in CC and groundwater, both from policy and scientific perspective

3. Meeting program 2011 workshop
First session: demands of the member states for having CC well incorporated in the 2nd and 3rd River Basin Management Plans
Guidance No. 24 what is not mentioned but needs attention
Second session: presenting knowledge that is currently available among scientists in Europe
Europe wide CC aspects of groundwater:
Case studies on CC and groundwater in EU member states
Third session: wrap-up
discussion how to match knowledge and demands, and make plans for a follow-up.

4. 2011 workshop outcomes What did we actually learn in 2011?
8 November 2019

5. CC impacts are potentially everywhere
Control
Future
Dryer summers Netherlands
Evidence that CC affects GW all over Europe, but with very different effects
S-Europe: overall decreasing trend in recharge
W, Central, Alps and N Europe:
Changes is seasonal regimes => water scarcity in summers
Snow melt earlier in the year Sweden, Alps
Dryer summers western europe
Length of recharge season
Changes in land use to adapt to those changes
Alps
Other seasonal regimes Sweden

6. Secondary impacts count
8 november 2019
Secondary impacts count
Pressures on groundwater systems tend to increase,
Primary effects of climate change
associated human induced changes of surface and subsurface water management (= secondary effects)
Secondary impacts of are expected to have the largest short-term effects on groundwater resources.
increase of water demands and abstractions of groundwater for irrigation
water scarcity in summers
Land use change may affect groundwater recharge and quality
Intensification leads to increase in EP
New crops may lead to different or increased pollution
Energy policy (heat storage, CO2 storage, biofuels) 6

7. Increased pressures on groundwater
Increase of competition between different groundwater uses
Irrigation (more groundwater, less surface water)
drinking water
energy use (storage of heat, CO2 storage etc)
Competition between uses and GW ecosystem services
Base flow and Environmental Flow Needs
Groundwater dependent ecosystems

8. Prolonged drougths and water scarcity
Not only in southern europe

9. Salt water intrusion

10. Uncertainties addressed; uncertainties remain
Uncertainties in
CC scenarios
Hydrological behaviour
Response of society to CC (land use change for example)
No reason for doing nothing
Response of society (indirect impact) should be met in predictions
Groundwater levels (m)
Calib. Uncertainty
95 % CI
Weather generator
(2085)
Alternative dowscaling approach

11. What we now know Is the results of research that started 5-7 years ago
Is useful to feed the research results in the policy process
Recommendations to make water management plans waterproof / CC proof
Technical note on workshop results
Workshop to define recommendations 2012

12. Lacking current Guidances , but recommendations possible (not complete)
Much progress has been made since GWD and G no.24
How to take into account the cascade of uncertainties in modelling CC aspects on GW in decision making
Assessment and monitoring of salt water intrusion
Harmonised assessment of drought/scarcity situations in GW
 Communication (do we have to take measures?)
How to monitor effectively; what is necessary
Adaptations (local, regional measures)
Dutch cows, after adaptation measures

13. Lacking, needs further assessments
Scenarios have to include adaptations
Current scenarios mainly focus on primary effects:
Scenarios should include secondary impacts !!
How do CC influenced energy policies affect groundwater
Very little is known on extreme situations (flooding, severe droughts, drought propagation to groundwater.)
Effects of CC on GW chemical status and pollutant transport are unclear
CC Effects on nutrients transfer between groundwater and lakes, estuaries and seas
Importance of knowledge about behavior in the past
Assess historical monitoring data and improve current monitoring strategies

14. How we have been moving forward
Move forward in two complementary ways:
Policy: Recommendations for 2nd RBMP’s for what we already know
Technical note on outcomes of first workshop (released April 2012)
Second workshop in Cyprus, Oct 8th 2012
dedicated to concrete recommendations on basis what we know now
Different set-up: discussion in small groups heading for concrete recommendations
Cooperation with WS&D and Agiculture and Water groups
Science supporting policy: Promoting research for what we don’t know
Manifest delivered to DG-Research Nov 2011
Groundwater mentioned in some FPVII calls (multistressor, toxicants)
No specific groundwater call
Research results should feed into 3rd RBMP

15. Today’s workshop Limassol
8 november 2019
Today’s workshop Limassol
Aim: to make recommendations for climate resilient river basin management plans
Recommendations on:
programme of measures, management options
monitoring strategies
management of protected areas (DWPA, GWDTE)
Groundwater resource management in relation to agriculture demands
Different set-up: discussion in small groups heading for concrete recommendations

16. Meeting program
9:15 Start of meeting, welcome by Johannes Grath, co-chair of EU Working Group C on Groundwater
9:25 Introduction on the topics of today (Hans Peter Broers, Chair of the activity on Groundwater and Climate Change)
First session: Reminder of the outcomes of the 2011 workshop, which sets the knowledge base for today
9:35 Groundwater aspects in the Guidance No.24 on River Basin Management in a Changing Climate (Sophie Vermooten )
9:55 Outcomes of the 2011 workshop (Hans Peter Broers)
10:15 CC in the current RBMPs (Balazs Horvath)
10:30 General discussion of the anticipated outcomes of today and messages to the 4 groups which will separately discuss 4 main themes.
10:45 Coffee Break
Second session: presenting knowledge discussion on 4 specific themes.
11: 15 First round
12:45 -14:15 Lunch
14: 15 Second round
15:45 Tea Break
Third session: : wrap-up: reports of the 4 groups and summary of workshop conclusions
16:15 Reports from the chairs of the 4 thematic groups
17:30 General discussion on the outcomes of the 4 groups
Closure (Balazs Horvath) .
8 october 2012