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基于WorldView-Ⅱ与Aster数据的Fe信息提取——以南极拉斯曼丘陵为例

魏学娟 徐刚

魏学娟, 徐刚, 2015. 基于WorldView-Ⅱ与Aster数据的Fe信息提取——以南极拉斯曼丘陵为例. 地质力学学报, 21 (4): 536-545.
引用本文: 魏学娟, 徐刚, 2015. 基于WorldView-Ⅱ与Aster数据的Fe信息提取——以南极拉斯曼丘陵为例. 地质力学学报, 21 (4): 536-545.
WEI Xue-juan, XU Gang, 2015. IRON INFORMATION EXTRACTION IN LARSEMANN HILLS OF ANTARCTIC BASED ON WORLDVIEW-Ⅱ AND ASTER DATA. Journal of Geomechanics, 21 (4): 536-545.
Citation: WEI Xue-juan, XU Gang, 2015. IRON INFORMATION EXTRACTION IN LARSEMANN HILLS OF ANTARCTIC BASED ON WORLDVIEW-Ⅱ AND ASTER DATA. Journal of Geomechanics, 21 (4): 536-545.

基于WorldView-Ⅱ与Aster数据的Fe信息提取——以南极拉斯曼丘陵为例

基金项目: 

南极环境综合分析与评估项目 CHINARE04-02

南极环境综合分析与评估项目 CHINARE2014-04-02

南极环境综合分析与评估项目 CHINARE2015-04-02

详细信息
    作者简介:

    魏学娟(1990-), 硕士研究生, 研究方向遥感地质。E-mail:331674312@qq.com

    通讯作者:

    徐刚(1966-), 研究员, 研究方向遥感地质。E-mail:xuganglxs@126.com

  • 中图分类号: P627

IRON INFORMATION EXTRACTION IN LARSEMANN HILLS OF ANTARCTIC BASED ON WORLDVIEW-Ⅱ AND ASTER DATA

  • 摘要: 利用WorldView-Ⅱ遥感影像高空间分辨率和高波谱分辨率的数据优点, 结合Aster数据波段互补的优势, 进行南极大陆边缘拉斯曼丘陵Fe信息提取研究。研究结果表明, 使用WorldView-Ⅱ与Aster数据对比分析的主成分法, 提取Fe3+信息, 采用WorldView-Ⅱ与Aster协同数据下的波段运算法, 提取Fe2+信息, 可以达到优势互补的目的。Fe信息提取结果显示, 含铁矿物信息分布区主要集中在混合片麻岩与副片麻岩区域, 分别占Fe信息总面积的80.39%和15.73%, 与野外调查结果基本一致。

     

  • 图  1  研究区地理位置及地质简图

    Figure  1.  Position and geological map of the study area

    图  2  野外含磁铁矿的岩系图

    Figure  2.  Field map of containing magnetite rock

    图  3  典型含铁矿物波谱与WorldView-Ⅱ、Aster波谱通道对应关系图

    Figure  3.  Corresponding relations between the spectra of typical iron-bearing minerals and bands of WorldView-Ⅱ and Aster

    图  4  基于WorldView-Ⅱ与Aster数据的Fe3+信息提取结果

    Figure  4.  Information extraction of ferric iron based on WorldView-Ⅱ and Aster data

    图  5  WorldView-Ⅱ,Aster和协同数据波谱范围图

    Figure  5.  Spectrum map of WorldView-Ⅱ, Aster and synergetic data

    图  6  Fe信息提取结果图

    Figure  6.  Extraction map of iron information

    图  7  Fe信息分布图

    Figure  7.  Distribution image of iron information

    图  8  Fe信息提取结果统计

    Figure  8.  Statistical result of iron information

    表  1  WorldView-Ⅱ与Aster数据影像特征

    Table  1.   The data features of WorldView-Ⅱ and Aster

    WorldView-Ⅱ数据                    Aster数据(仅前9波段)
    波段编号 波谱范围/nm 空间分辨率/m 波段编号 波谱范围/nm 空间分辨率/m
    1 400~450 1.8
    2 450~510
    3 510~580 1 520~600 15
    4 585~625
    5 630~690 2 630~690
    6 705.5~745 3 760~860
    7 770~895
    8 860~1040
    4 1600~1700 30
    5 2145~2185
    6 2185~2225
    7 2235~2285
    8 2295~2365
    9 2360~2430
    下载: 导出CSV

    表  2  铁染异常主成分分析向量矩阵表(Aster)

    Table  2.   Eigenvector matrix of PC4

    Eigenvector Band1 Band2 Band3 Band4
    Band1 0.469764 0.566440 0.566168 0.371378
    Band2 0.429949 0.211999 0.006812 -0.877584
    Band3 0.685047 -0.114460 -0.652577 0.302906
    Band4 -0.353802 0.788100 -0.503538 0.013138
    下载: 导出CSV

    表  3  铁染异常主成分分析向量矩阵表(WorldView-Ⅱ)

    Table  3.   Eigenvector matrix of PC3

    Eigenvector Band1 Band2 Band3 Band4
    Band1 0.202933 0.523631 0.588460 0.581674
    Band4 0.911723 0.175104 -0.123917 -0.350349
    Band6 0.316545 -0.485857 -0.386010 0.717453
    Band8 -0.165465 0.677564 -0.699540 0.155476
    下载: 导出CSV

    表  4  WorldView-Ⅱ与Aster数据提取的Fe3+面积统计

    Table  4.   Ferric iron area statistics using WorldView-Ⅱ and Aster data

    异常级别 Fe3+面积/m2
    WorldView-Ⅱ Aster
    一级 499736.23 391950.00
    二级 585676.42 504000.00
    三级 441789.55 555300.01
    下载: 导出CSV
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  • 收稿日期:  2015-06-06
  • 刊出日期:  2015-04-01

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