TY - JOUR
T1 - Less ice on the Baltic reduces the extent of hypoxic bottom waters and sedimentary phosphorus release
AU - Vermaat, J.E.
AU - Bouwer, L.M.
PY - 2009
Y1 - 2009
N2 - A significant relation was established between the maximum extent of sea ice covering the Baltic Sea and the hypoxic area in the deeper parts of the Baltic Proper, with a lag of 2 years: for the period 1970-2000, less ice was correlated with a smaller anoxic area. At the same time, maximum ice extent is subject to a long-term climate-related decline, due to higher air temperatures and an increased frequency of westerly winds. Together, this suggests that the hypoxic area will decrease in the coming decades. Internal sedimentary phosphorus-loading is closely related to the hypoxic area and hence would decrease as well. Wind strength variability did not have a significant additive effect to the variance in hypoxic area already explained by sea ice extent. The observed lag is in agreement with the order of magnitude of estimated residence times in the shallower sub-basins feeding the Baltic Proper, where ice extent varies most. © 2009 Elsevier Ltd. All rights reserved.
AB - A significant relation was established between the maximum extent of sea ice covering the Baltic Sea and the hypoxic area in the deeper parts of the Baltic Proper, with a lag of 2 years: for the period 1970-2000, less ice was correlated with a smaller anoxic area. At the same time, maximum ice extent is subject to a long-term climate-related decline, due to higher air temperatures and an increased frequency of westerly winds. Together, this suggests that the hypoxic area will decrease in the coming decades. Internal sedimentary phosphorus-loading is closely related to the hypoxic area and hence would decrease as well. Wind strength variability did not have a significant additive effect to the variance in hypoxic area already explained by sea ice extent. The observed lag is in agreement with the order of magnitude of estimated residence times in the shallower sub-basins feeding the Baltic Proper, where ice extent varies most. © 2009 Elsevier Ltd. All rights reserved.
U2 - 10.1016/j.ecss.2009.02.027
DO - 10.1016/j.ecss.2009.02.027
M3 - Article
VL - 82
SP - 689
EP - 691
JO - Estuarine, Coastal and Shelf Science
JF - Estuarine, Coastal and Shelf Science
SN - 0272-7714
IS - 4
ER -
