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yexuqing木蟲(chóng)之王 (文學(xué)泰斗)
太陽(yáng)系系主任
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[交流]
A 485-million-year history of Earth’s surface temperature
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A 485-million-year history of Earth’s surface temperature 4.85億年歷史的地球表面溫度 ▲ 作者：EMILY J. JUDD, JESSICA E. TIERNEY, DANIEL J. LUNT, ISABEL P. MONTAEZ, BRIAN T. HUBER, SCOTT L. WING, AND PAUL J. VALDES ▲鏈接 https://www.science.org/doi/10.1126/science.adk3705 ▲摘要： 在過(guò)去的5億年里，動(dòng)植物的進(jìn)化模式對(duì)氣候的演變產(chǎn)生了重要影響。了解這一時(shí)期全球平均地表溫度（GMST）是如何變化的，對(duì)于理解這段時(shí)間內(nèi)驅(qū)動(dòng)氣候的過(guò)程至關(guān)重要。 Judd等人提出了將代理數(shù)據(jù)與氣候模擬相結(jié)合構(gòu)建的過(guò)去4.85億年的GMST記錄。他們發(fā)現(xiàn)，全球平均地表溫度在11℃到36℃的范圍內(nèi)變化，“表觀(guān)”氣候敏感性為~8℃，大約是今天的兩到三倍。 ▲ Abstract： Understanding how global mean surface temperature (GMST) has varied over the past half-billion years, a time in which evolutionary patterns of flora and fauna have had such an important influence on the evolution of climate, is essential for understanding the processes driving climate over that interval. Judd et al. present a record of GMST over the past 485 million years that they constructed by combining proxy data with climate modeling. They found that GMST varied over a range from 11°C to 36°C, with an “apparent” climate sensitivity of ～8°C, about two to three times what it is today. |
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