Continuous geomagnetic field models for the past 7 millennia: 1. A new global data compilation
Continuous geomagnetic field models for the past 7 millennia: 1. A new global data compilation
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DOI：
10.1029/2004gc000800
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发表时间：
2005-02
期刊：
影响因子：
3.7
通讯作者：
M. Korte;A. Genevey;Catherine Constable;Ute Frank;E. Schnepp
中科院分区：
文献类型：
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作者：
M. Korte;A. Genevey;Catherine Constable;Ute Frank;E. Schnepp
一个涵盖过去7000年的全球古地磁和古地磁数据集已经汇编完成。它包括16，085个倾角结果，13，080个倾角结果和3188个强度结果，时间跨度为公元前5000年至公元1950年。倾斜度和倾斜度数据部分来自现有数据库，部分来自原始文献。其中包括新的千年尺度全球烈度数据汇编。数据和测年的不确定性进行了讨论，因为我们试图获得一个内部一致的数据集。数据的全球分布在时间和空间上都很不均匀。所有数据都与之前3000年全球模型CALS 3K.1的预测进行了比较。这些数据的收集将有助于全球长期变化研究和地磁场建模，尽管南半球的数据仍然代表性不足。特别是，我们将在进一步的研究中使用它来更新和扩展现有的全球模型CALS 3K.1。与以前的汇编相比，数据的巨大增加将导致当前模型的重大变化。由于我们可能错过了一些合适的数据，我们鼓励读者通知我们任何尚未包含的数据，因为改进我们的全球千年尺度模型仍然是我们未来的目标。本文中描述的数据文件可从地球参考数字档案馆（ERDA）http：//earthref.org/cgi-bin/erda.cgi？n=331。
A global data set of archeomagnetic and paleomagnetic data covering the past 7000 years has been compiled. It consists of 16,085 results of inclination, 13,080 of declination, and 3188 of intensity for the time span 5000 BC to 1950 AD. Declination and inclination data come partly from existing databases and partly from original literature. A new global compilation of intensity data for the millennial scale is included. Data and dating uncertainties are discussed as we attempted to obtain an internally coherent data set. The global distribution of the data is very inhomogeneous in both time and space. All the data are compared to predictions from the previous 3000 year global model, CALS3K.1. This collection of data will be useful for global secular variation studies and geomagnetic field modeling, although southern hemisphere data are still underrepresented. In particular, we will use it in a further study to update and extend the existing global model, CALS3K.1. The huge increase in data compared to the previous compilation will result in significant changes from current models. As we might have missed some suitable data, we encourage the reader to notify us about any data that have not been included yet and might fit in, as improving our global millennial scale models remains our aim for the future. The data files described in this paper are available from the EarthRef Digital Archive (ERDA) at http://earthref.org/cgi‐bin/erda.cgi?n=331.