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To paraphrase, the only climate constant is climate change.
Study: Rapid climate changes across northern hemisphere in the earliest Middle Pleistocene
From KOBE UNIVERSITY and the “Yes Virginia, climate DOES change on it’s own accord” department. By studying climate changes that took place thousands of years ago, we can better understand the global climate system and predict the Earth’s future climate. A multi-organization research team led by Professor HYODO Masayuki (Research Center for Inland Seas, Kobe University)…
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From KOBE UNIVERSITY and the “Yes Virginia, climate DOES change on it’s own accord” department.
By studying climate changes that took place thousands of years ago, we can better understand the global climate system and predict the Earth’s future climate. A multi-organization research team led by Professor HYODO Masayuki (Research Center for Inland Seas, Kobe University) has discovered evidence of rapid climate changes on a millennial-to-centennial scale that occurred 780 to 760 thousand years ago. The findings were published on August 30 in Scientific Reports. . . .
During the 2.6 million year Quaternary Period, the climate repeated a glacial and interglacial cycle, caused by changes in the geographical distribution of solar radiation due to orbital changes including those of the Earth’s orbit and the tilt of its axis. These changes are regarded as “Milankovitch cycles”, over 20,000 years in period. But in the Holocene and last glacial periods, a number of millennial-to-centennial scale climate changes have been observed. Such rapid climate changes have scarcely been reported before the last glacial period.
In the interglacial period between 780 and 760 thousand years ago, the Earth’s orbital patterns were quite similar to the current (Holocene) era, so this interglacial climate could be useful in predicting the Earth’s future climate.
The research team focused on the Kazusa Group (Chiba prefecture, Japan), which has the fastest sedimentation rate in the world for strata of that era, and obtained high resolution paleoceanic environmental records every 10 years. When combined with records from Osaka Bay and the North Atlantic, they found evidence of multiple instances of rapid warming and cooling across all three regions at the same time. The data includes the unusual phenomenon of a rapid temperature rise with cyclicity suddenly finishing with a cold event. The cold events occurred at the same time as the great iceberg flow reached mid-latitudes in the North Atlantic, so they are thought to be caused by meltwater that covered the North Atlantic Ocean.
Study: Rapid climate changes across northern hemisphere in the earliest Middle Pleistocene
From KOBE UNIVERSITY and the “Yes Virginia, climate DOES change on it’s own accord” department. By studying climate changes that took place thousands of years ago, we can better understand the global climate system and predict the Earth’s future climate. A multi-organization research team led by Professor HYODO Masayuki (Research Center for Inland Seas, Kobe University)…
Continue reading →
From KOBE UNIVERSITY and the “Yes Virginia, climate DOES change on it’s own accord” department.
By studying climate changes that took place thousands of years ago, we can better understand the global climate system and predict the Earth’s future climate. A multi-organization research team led by Professor HYODO Masayuki (Research Center for Inland Seas, Kobe University) has discovered evidence of rapid climate changes on a millennial-to-centennial scale that occurred 780 to 760 thousand years ago. The findings were published on August 30 in Scientific Reports. . . .
During the 2.6 million year Quaternary Period, the climate repeated a glacial and interglacial cycle, caused by changes in the geographical distribution of solar radiation due to orbital changes including those of the Earth’s orbit and the tilt of its axis. These changes are regarded as “Milankovitch cycles”, over 20,000 years in period. But in the Holocene and last glacial periods, a number of millennial-to-centennial scale climate changes have been observed. Such rapid climate changes have scarcely been reported before the last glacial period.
In the interglacial period between 780 and 760 thousand years ago, the Earth’s orbital patterns were quite similar to the current (Holocene) era, so this interglacial climate could be useful in predicting the Earth’s future climate.
The research team focused on the Kazusa Group (Chiba prefecture, Japan), which has the fastest sedimentation rate in the world for strata of that era, and obtained high resolution paleoceanic environmental records every 10 years. When combined with records from Osaka Bay and the North Atlantic, they found evidence of multiple instances of rapid warming and cooling across all three regions at the same time. The data includes the unusual phenomenon of a rapid temperature rise with cyclicity suddenly finishing with a cold event. The cold events occurred at the same time as the great iceberg flow reached mid-latitudes in the North Atlantic, so they are thought to be caused by meltwater that covered the North Atlantic Ocean.
Figure 2: Records of Climate and Environment between 790 and 750,000 Years Ago in 3 Areas (a) Osaka Bay, (b, c) Chiba section, (d) North Pacific data. (e) shows the ice volume variations predicted from amount of solar radiation. MBB shows the geomagnetic reversal point (Matuyama-Brunhes Boundary). After geomagnetic reversal, in all three areas the same sea-level rise and climate warming event occurs 8 times (A-H). Around events G and H, Osaka Bay and surface water in the North Pacific shows the highest temperature rise. CREDIT Kobe University
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