LeConte Bay Seafloor Elevation Data 1999 - 2018
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Multibeam data of LeConte Bay seafloor from the inner fjord. These are processed multibeam sonar data from LeConte Bay, southeast Alaska. The data come from five cruises grouped into five files: 1) Aug 1999 and Sep 2000 (20-meter (m) resolution) - 1 file; 2) August 2016 (20-m and 4-m resolution) - 2 files; 3) May 2017 (2-m resolution) - 1 file; 4) Sep 2018 (2-m resolution) - 1 file. The datasets collected in 2016-2018 originally included ice-face data, as reported in Sutherland et al., 2019 (DOI 10.1126/science.aax3528) and archived as a dataset - Multibeam sonar data of the face of LeConte Glacier, southeast Alaska, 2016 - 2017 (https://doi.org/10.18739/A2599Z28K). The data presented here include only the seafloor data, exclusive of the ice face. They are referenced to World Geodetic System 1984 (WGS84), Universal Transvers Mercator (UTM) zone 8 (meters easting/northing), and mean sea level. Reference and more details: Eidam, E.F., D.A. Sutherland, D. Duncan, C. Kienholz, J.M. Amundson, and R.J. Motyka, 2020. Morainal bank evolution and fjord infilling during a tidewater glacier stillstand, on seasonal to decadal timescales, J. Geophys. Res. Earth Surf., 125, e2019JF005359, https://doi.org/10.1029/2019JF005359.
阿拉斯加东南部利康特湾(LeConte Bay)内峡湾的海底多波束声呐测深数据。本数据集为经过预处理的利康特湾多波束声呐数据,观测数据源自5个航次,整合为5个数据文件:1)1999年8月与2000年9月航次(分辨率为20米)——1个文件;2)2016年8月航次(分辨率涵盖20米与4米)——2个文件;3)2017年5月航次(分辨率为2米)——1个文件;4)2018年9月航次(分辨率为2米)——1个文件。2016-2018年采集的原始数据集曾包含冰面声呐数据,相关研究成果发表于Sutherland等人2019年的论文(DOI: 10.1126/science.aax3528),并以《阿拉斯加东南部利康特冰川冰面多波束声呐数据(2016-2017)》(https://doi.org/10.18739/A2599Z28K)为名归档。本数据集仅保留海底测深数据,剔除了冰面相关观测内容。所有数据采用1984世界大地测量系统(World Geodetic System 1984, WGS84)、通用横轴墨卡托投影(Universal Transverse Mercator, UTM)8号带(坐标单位:米,东向/北向分量)及平均海平面作为基准。参考文献及详细信息参见:Eidam E.F.、Sutherland D.A.、Duncan D.、Kienholz C.、Amundson J.M.、Motyka R.J.,2020年。《潮尾冰川静止期内季节至年代际尺度的冰碛岸演化与峡湾充填过程》,《地球物理研究杂志:地球表面》(J. Geophys. Res. Earth Surf.),第125卷,e2019JF005359,https://doi.org/10.1029/2019JF005359。
创建时间:
2021-02-16



