BEDMAP3 - Ice thickness, bed and surface elevation for Antarctica - standardised shapefiles and geopackages

We present here the Bedmap3 ice thickness, bed and surface elevation aggregated points and survey lines. The aggregated points consist of statistically-summarised shapefile points (centred on a continent-wide 500 m x 500 m grid) that reports the average values of Antarctic ice thickness, bed and surface elevation from the full-resolution survey data and information on their distribution. The points presented here correspond to the added points since the last release of Bedmap2. The data comes from 14 different data providers and 75 individual surveys. They are available as geopackages and shapefiles. The associated datasets consist of: - Bedmap1 statistically-summarised data points (shapefiles): https://doi.org/10.5285/925ac4ec-2a9d-461a-bfaa-6314eb0888c8 - Bedmap2 statistically-summarised data points (shapefiles): https://doi.org/10.5285/0f90d926-99ce-43c9-b536-0c7791d1728b - Bedmap3 standardised CSV data points: https://doi.org/10.5285/91523ff9-d621-46b3-87f7-ffb6efcd1847 This work is supported by the SCAR Bedmap project and the British Antarctic Survey's core programme: National Capability - Polar Expertise Supporting UK Research

本文发布了Bedmap3冰厚、冰床与表面高程聚合点集及测线数据集。
该聚合点集基于全南极范围500米×500米的网格基准，由统计汇总后的形状文件（shapefile）点构成，涵盖了源自全分辨率勘测数据的南极冰厚、冰床与表面高程平均值，以及相关数据的分布信息。
本次发布的聚合点集为Bedmap2上次发布以来新增的点集。
本数据集源自14家不同数据提供方与75项独立勘测项目，可通过地理数据包（geopackage）与形状文件（shapefile）格式获取。
相关配套数据集包括：
- Bedmap1统计汇总数据点集（形状文件格式）：https://doi.org/10.5285/925ac4ec-2a9d-461a-bfaa-6314eb0888c8
- Bedmap2统计汇总数据点集（形状文件格式）：https://doi.org/10.5285/0f90d926-99ce-43c9-b536-0c7791d1728b
- Bedmap3标准化CSV数据点集：https://doi.org/10.5285/91523ff9-d621-46b3-87f7-ffb6efcd1847
本研究得到了南极研究科学委员会（Scientific Committee on Antarctic Research）Bedmap项目以及英国南极调查局核心项目“国家能力——支撑英国科研的极地专业服务”的资助。