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risewithsu

银虫 (小有名气)

[交流] 【讨论】大牛Peter Clark主动从Nature Geoscience撤稿 已有9人参与

来源链接
http://www.nature.com/ngeo/journ ... t/full/ngeo780.html

Retraction: Constraints on future sea-level rise from past sea-level change
Mark Siddall, Thomas F. Stocker & Peter U. Clark

Introduction
Nature Geoscience 2, 571–575 (2009); published online: 26 July 2009; retracted online: 21 February 2010.

This Letter presented projections of future sea-level rise based on simulations of the past 22,000 years of sea-level history using a simple, empirical model linking sea-level rise to global mean-temperature anomalies.

One of the main conclusions of the Letter was that the model results supported the projections of sea-level rise during the twenty-first century that are reported in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Unfortunately, we have since found that our projections were affected by two oversights in our model approach.

First, we tested the sensitivity of our results to the length of the time step used in the integration of the model for the period of deglaciation, which we found to be robust. However, we overlooked that the simulations of the twentieth and twenty-first centuries are sensitive to this time step, which led to an overestimation of the sea-level response to warming in the simulations for these centuries.
Second, we did not include the effect of the uncertainty in the temperature reconstructions since the Medieval Climate Anomaly in our uncertainty estimates for the twenty-first-century projections. This led to an inconsistency between the twentieth-century simulation used to test the predictive capability of the model and the twenty-first-century simulation, owing to a provisional allowance for warming since the Little Ice Age in the twentieth-century simulations
.

Thus we no longer have confidence in our projections for the twentieth and twenty-first centuries, and for this reason the authors retract the results pertaining to sea-level rise after 1900. Both our simulations of the last deglaciation, and the result that the equilibrium response of sea-level change to temperature is non-linear over the last deglaciation, are robust to the length of the time step used, and are still valid.

We thank S. Rahmstorf and M. Vermeer for bringing these issues to our attention.



牛人的气度不仅仅在于对自己成果的信心上,更体现在对他人批评虚怀若谷上。

看看我们身边的人,也观照一下自己,有这个勇气么?

[ Last edited by risewithsu on 2010-2-22 at 20:06 ]
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xyzhchina

木虫 (正式写手)


小木虫(金币+0.5):给个红包,谢谢回帖交流
的确值得敬佩和学习
9楼2010-05-15 00:03:10
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flyindusk

木虫 (正式写手)

各位虫子不要愤慨,不信把诸位导师论文拿出来晒晒...


小木虫(金币+0.5):给个红包,谢谢回帖交流
拿Clark的标准严格要求的话,

古环境这行当里中文期刊大约70%稿子本来就不该发,另外30%有一半都值得怀疑。
博观约取 厚积薄发 无私无畏 不党不群
3楼2010-02-22 23:04:09
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calanus

木虫 (著名写手)

嗯,这才是科学的精神
4楼2010-02-22 23:17:10
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1983522

金虫 (小有名气)

教授的话


小木虫(金币+0.5):给个红包,谢谢回帖交流
记得自己刚读研究生时,我们院的大牛给上课好像是第四纪前沿研究的东西,当时印象最深的大牛给我们的一句话是:研究古环境的东西大家就是在讲故事,无论你做的对与错,只要你能够讲○一件事情,就可以,”当时听了这句话觉得很郁闷,大家既然都在讲故事,没什么大贡献的话干吗还花这么多钱来讲这个故事?
那节课后搞得自己很郁闷。
5楼2010-04-20 15:20:04
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