baltic sea, eutrophication and climate change, uusimaa case study polona rozman astra conference...
TRANSCRIPT
Baltic Sea, eutrophication and climate change, Uusimaa
case study
Polona Rozman
ASTRA Conference Gdansk 26th – 28th October 2006
What is eutrophication?
series of interlinked processes:
excess input or production of nutrients and organic matter
far-reaching effects
enrichment direct hazard
stimulates the growth of algae
imbalanced functioning of the system
(HELCOM, FIMR)
Baltic Sea and eutrophiction
7.7.2006
www.fimr.fi
www.fimr.fi
How does it look like?
What has the climate change to do with the eutrophication?
not directly
influenced
complex phenomenon
(many influencing
factors)
influenced indireclty
Climate change and the Eutrophication...
Climate Change most probably will affect the eutrophication in the Baltic Sea
The relationship is nevertheless very complicated and the consequences are hard to predict
Statistical analysis to confirm the connection!
To show how the parameters that characterise eutrophication (chlorophyll-a content, oxygen content/saturation) can be explained by oceanographical and nutrient parameters which will be directly influenced by climate change
and by such mean to prove that trophic status of the sea depends on climate change as well.
Multiple regression analysis (1)
Data from the SYKE database, sea stations for Uusimaa region, Gulf of Finland, Finland
61 stations
from 1.9.1995 till 31.8.2006
from 15 up to 249 measurements per station in total
Multiple regression analysis (2)
Parameters:• Oxygen content, oxygen saturation, temperature,
salinity total phosphorus, total nitrogen, trubidity, chlorophyll-a
Tool: SPSS
Time frame: September 2006 - January 2007
Thank you!
Contact and further information
Polona Rozman
Geological Survey of Finland
ASTRA project
www.astra-project.org