Swedish Hydrology Day 2014

Welcome !

Georgia Destouni

Main theme:

Water and Energy

Close relations

Different perspectives

Highlights

PrecipitationTemperature

Latent heat flux

Evapotranspiration

Water flux & availability

Data-given ET for different land cover types

Energy use efficiency AET/PET

van der Velde et al. (J Geophysical Res: Atmospheres, 2013)

ET

/ P

ET / PET

Land cover developments drive changes in water &

energy fluxes

Land cover data Sweden

PrecipitationTemperature

Latent heat flux

Evapotranspiration

Water flux & availability

Water use for energy & food production

Destouni et al. (Nature Climate Change, 2013)

Hydroclimatic shifts driven by human water use for food and energy production

T

PStart 20th century

End 20th century

Agricultural catchments

Hydropower catchments

Unregulated catchments

ETwb=P-RSolid lines:

Destouni et al. (Nature Climate Change, 2013)

Temporal R variability

Hydropower catchments – decreased CV(R)

Unregulated catchments – fluctuations but no shifts in CV(R)

Agricultural catchments – increased CV(R)

Destouni et al. (Nature Climate Change, 2013)

Integrated framework to assess climate, land-use, energy and water strategies (CLEWs)

Howells et al. (Nature Climate Change, 2013)

Water, energy and land systems are highly integrated, and any assessment of

these resources should treat them as such

Integrated framework to assess climate, land-use, energy and water strategies (CLEWs)

Howells et al. (Nature Climate Change, 2013)

Water framework directiveGood ecological status achieved in all

waters by 2015 (or latest 2027)

Hubbert_peak_oil_plot

Small-scale hydro ? Dams

20% cut of greenhouse gas emissions

20% renewable energy sources

by 2020

Water Environment - Energy & Climate Goals & Conflicts ?

Geological formations and their water

Pollutant Barriers – Carriers ?

For energy-related and other:

- (Nuclear & other) Wastes - Geologic (CO2 & other)

Storage