| LEADAT: a MATLAB-based program for lead-210 data analysis of sediment cores |
| |
| 作者姓名： | LU Xueqiang MATSUMOTO Eiji |
| |
| 作者单位： | Graduate School |
| |
| 摘 要： | 1Introduction Tracking the history of man s impact on the en-vironment, it is clear that in many places the periodof greatest impact and most dramatic transformationlies within the last 150 a (Oldfield and Appleby,1984). Many aspects of this impact can be…
|
| 关 键 词： | 海洋环境 沉积物 人类活动 营养化 |
| 收稿时间： | 2006-01-19 |
| 修稿时间： | 2006-05-27 |
LEADAT: a MATLAB-based program for lead-210 data analysis of sediment cores |
| |
| LU Xueqiang,MATSUMOTO Eiji.LEADAT: a MATLAB-based program for lead-210 data analysis of sediment cores[J].Acta Oceanologica Sinica,2006,25(6):128-137. |
| |
| Authors: | LU Xueqiang and MATSUMOTO Eiji |
| |
| Institution: | 1.Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan;Environmental Science(SGES), Tamaki Campus, University of Auckland, Private Bag 92019 Auckland, New Zealand2.Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan |
| |
| Abstract: | The program described herein (LEADAT) serves to calculate sediment date and sedimentation rate using the 210 Pb method for the studies of environmental processes and pollution history on a time scale of 100~150 a. The program written in MATLAB (Version7.0) permits the user to select the principal models of 210 Pb method, i.e., the constant fluxes of sediment and lead-210 (CFSL) model, the constant flux of lead-210 (CFL) model, the constant initial concentration of lead-210 (CICL) model and the two-layer mixing (TLM) model. Although appropriate model selection is essentially based on understanding of the sedimentary processes, the pattern of the excess 210 Pb profile is also helpful for model selection. The excess 210 Pb profiles for two sediment cores collected from a brackish lake and an embayment respectively are used to demonstrate the application of the program. With a graphical user interface, the program can be easily executed. Not only ASCII but also graphical output can be generated by means of the program. Meanwhile, the code can be modified easily for extension. |
| |
| Keywords: | Lead-210 method sediment dating sedimentation rate environmental change |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
