OCTOPUS Database v.2.2: The CRN Denudation Global collection [2024]

Database of published cosmogenic Be-10 and Al-26 concentrations from modern river sediment and basin-averaged denudation rates inferred from these data. Ancillary spatial data includes: sample site location (point), basin outline (polygon), digital elevation model (raster), D8 flow direction and flow accumulation grids (raster), topographic gradient (raster), atmospheric pressure (raster), and cosmogenic nuclide production scaling factor and topographic shielding grids (raster). The vector spatial data uses the WGS84/Pseudo-Mercator (EPSG: 3857) projected coordinate reference system. The raster data uses the WGS86/UTM projected coordinate reference system, UTM zones depending on the extent and location of each data package. Sample metadata is comprehensive and includes all necessary information and input files for the recalculation of denudation rates using the CAIRN model (https://github.com/LSDtopotools/LSDTopoTools_CRNBasinwide). All denudation rates were recalculated and harmonised using CAIRN. The extent of the data is global, excluding Australia.

本数据库收录了已发表的河流沉积物中现代宇宙成因的Be-10和Al-26浓度，以及据此推断出的流域平均剥蚀速率。辅助空间数据包括：样本点位（点）、流域轮廓（多边形）、数字高程模型（栅格）、D8流向和流量累积网格（栅格）、地形梯度（栅格）、大气压力（栅格）以及宇宙成因核素生产规模因子和地形屏蔽网格（栅格）。矢量空间数据采用WGS84/伪墨卡托（EPSG: 3857）投影坐标参考系统。栅格数据采用WGS86/UTM投影坐标参考系统，具体UTM区域取决于每个数据包的范围和位置。样本元数据详尽，包含所有必要信息和输入文件，用于利用CAIRN模型（https://github.com/LSDtopotools/LSDTopoTools_CRNBasinwide）重新计算剥蚀速率。所有剥蚀速率均已重新计算并协调一致化。数据范围全球覆盖，不包括澳大利亚。