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Abstract
Examines in Marine Biology & Oceanography
Ocean Temperature Changes and Sea Level Changes
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Open or CloseNils Axel Mörner*
Department of Paleogeophysics & Geodynamics, Sweden
*Corresponding author:Nils Axel Mörner, Department of Paleogeophysics & Geodynamics, Sweden
Submission: March 05, 2020; Published: March 18, 2020
ISSN : 2578-031XVolume3 Issue4
Abstract
Thermal expansion and contraction affect the ocean surface level. With the installation of the ARGO temperature measurements in 2004, we now have high-precision records of the changes in temperature both in horizontal and vertical dimension. In the Equatorial region (30 °N-30 °S) there has been a warming of about 0.25 °C in the uppermost 50-70m. This would rise sea level by about 1.2mm. In the Arctic region (55 °N-65 °N) there has been a cooling of about 0.20 °C in the upper 1400m. This would lower sea level by about 4.9cm. This invalidates previous global thermal expansion estimates.
Keywords:ARGO temperature; Ocean water expansion; Ocean water contraction; Sea level changes
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