Climate Change Induced Decadal Variations In
Hydrodynamic Conditions And Their Influence
On Benthic Habitats Of The Estonian Coastal Sea
Author(s)
Ü. Suursaar, T. Kullas, A. Kovtun, K. Torn & R. Aps
Abstract
Above Northern Europe, recent climate change, apart from temperature rise, also
manifests as shifts in wind climatology and storminess, which, in turn, influences
the marine ecosystem via changes in hydrodynamic regime. Based on
meteorological and sea level data from the Estonian weather and tide gauge
stations, as well as on hydrodynamic modelling experiments with the shallow sea
2D model and wave hindcast for the period 1966–2009, the study includes an
analysis of hydrodynamic changes in the Estonian coastal waters and discussion
on their possible influences on the biotic component of the littoral zone. In the
practically tideless Baltic Sea, the climate change induced variations include
spatially contrasting trends in sea level, wave conditions and turbidity. Changes
in thermohaline and oxygen conditions are frequently governed by shifts in
wind-driven flow patterns and upwelling zones. Variations in spatial distribution
of charophytes can serve as indicators for changes in coastal sea hydrodynamic
conditions.
Keywords: climate change, sea level, wave hindcast, macroalgae, Baltic Sea.
Keywords
climate change, sea level, wave hindcast, macroalgae, Baltic Sea
Related Book
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