Page 71 - ஸ்கிரிப்ட்கள் நிறுவனம் ஆஃப் கடல்சார்வியல் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Ocean temperature reconstructed over the last 700,000 years Bern’s ice core researchers were already able to demonstrate in 2008 how the concentration of CO2 in the atmosphere has changed over the past 800,000 years. Now, using the same ice core from the Antarctic, the group led by Bernese climate researcher Hubertus Fischer shows the maximum and minimum values between which the mean ocean temperature has fluctuated over the past 700,000 years. The results of the reconstruction have just been published in the journal Climate of the Past. The study’s key findings: Mean ocean temperatures have been very similar over the last seven ice ages, averaging about 3.3 °C colder than the pre-industrial reference period, as already suggested by syntheses of deep water temperatures from marine sediments. However, ocean temperatures in the warm periods 450,000 years ago were much colder and CO2 concentrations were lower than in our present warm period, despite similar solar radiation. The n

San diegoUnited statesHubertus fischerEuropean research councilScripps institute of oceanographyScripps instituteசான் டியாகோஒன்றுபட்டது மாநிலங்களில்ுபெர்த்துச் பிஷ்ஷர்ஐரோப்பிய ஆராய்ச்சி சபைஸ்கிரிப்ட்கள் நிறுவனம் ஆஃப் கடல்சார்வியல்ஸ்கிரிப்ட்கள் நிறுவனம்