COnstructing Proxy Records from Age models (COPRA)
COnstructing Proxy Records from Age models (COPRA)
复制标题
从年龄模型构建代理记录 (COPRA)
DOI：
10.5194/cp-8-1765-2012
复制
发表时间：
2012-01-01
影响因子：
4.3
通讯作者：
Marwan, N.
中科院分区：
文献类型：
--
作者：
Breitenbach, S. F. M.;Rehfeld, K.;Marwan, N.
可靠的年龄模型是任何古气候重建的基础。年龄控制点之间的可用内插方法通常没有得到充分的报道，很少有人将年龄不确定性转化为代理不确定性。大多数现有的建模算法不允许结合分层计数间隔来提高所讨论的年龄模型的置信度。我们提出了一个框架，允许检测和交互处理年龄反转和间歇、深度年龄建模和代理记录重建。蒙特卡罗模拟和转换程序被用来为气候指标分配一个精确的时间尺度，并将测年不确定性转化为代理值中的不确定性。该框架允许集成递增的相对测年信息来改进最终年龄模型。免费软件包COPRA1.0便于交互使用。
Reliable age models are fundamental for any palaeoclimate reconstruction. Available interpolation procedures between age control points are often inadequately reported, and very few translate age uncertainties to proxy uncertainties. Most available modeling algorithms do not allow incorporation of layer counted intervals to improve the confidence limits of the age model in question.We present a framework that allows detection and interactive handling of age reversals and hiatuses, depth-age modeling, and proxy-record reconstruction. Monte Carlo simulation and a translation procedure are used to assign a precise time scale to climate proxies and to translate dating uncertainties to uncertainties in the proxy values. The presented framework allows integration of incremental relative dating information to improve the final age model. The free software package COPRA1.0 facilitates easy interactive usage.