Lithology per SASAP region and Hydrolic Unit (HUC8) boundaries for Alaskan watersheds

This dataset was created to identify the dominant rock type of each SASAP region and each HUC8 watershed of Alaska. The Global Lithology Map (GliM) from the University of Hamburg (Hartmann, Jörg; Moosdorf, Nils (2012): Global Lithological Map Database v1.0 (gridded to 0.5° spatial resolution). PANGAEA, https://doi.org/10.1594/PANGAEA.788537, License: Creative Commons Attribution 3.0 Unported) was combined with the "sasap_regions.zip" shapefile (located here: https://knb.ecoinformatics.org/#view/urn:uuid:2c1c26fc-bfb9-4b6a-8d4a-0be8e61c4deb) to create "Lithology_shp_regions.zip", a shapefile that contains measurements of the area covered by certain lithologies in each SASAP region. It was also combined with the "sasap_watersheds_gapfix.zip" shapefile (located here: https://knb.ecoinformatics.org/#view/urn:uuid:2b5ab57e-38ec-4bc9-8290-f080ec0befb4) to create "Lithology_shp_watersheds.zip", a shapefile that contains measurements of the area covered by certain lithologies in each Alaskan watershed. CSV versions of the resulting shapefiles are also archived. The included python script, which was used to merge the data, outlines the process in more detail.

本数据集旨在识别阿拉斯加各SASAP区域与HUC8流域的优势岩石类型。本研究采用汉堡大学发布的全球岩性图（Global Lithology Map, GliM）：Hartmann, Jörg; Moosdorf, Nils (2012): 全球岩性图数据库v1.0（空间分辨率为0.5°的栅格数据），存储于PANGAEA数据库，DOI: 10.1594/PANGAEA.788537，授权协议为知识共享署名3.0未移植版（Creative Commons Attribution 3.0 Unported）。将该全球岩性图与`sasap_regions.zip`形状文件（获取链接：https://knb.ecoinformatics.org/#view/urn:uuid:2c1c26fc-bfb9-4b6a-8d4a-0be8e61c4deb）合并，生成`Lithology_shp_regions.zip`形状文件，该文件包含各SASAP区域内不同岩性的覆盖面积测算数据。此外，将该全球岩性图与`sasap_watersheds_gapfix.zip`形状文件（获取链接：https://knb.ecoinformatics.org/#view/urn:uuid:2b5ab57e-38ec-4bc9-8290-f080ec0befb4）合并，得到`Lithology_shp_watersheds.zip`形状文件，该文件包含阿拉斯加各流域内不同岩性的覆盖面积测算数据。上述两类形状文件的CSV格式版本亦已归档。本数据集附带用于完成数据合并的Python脚本，该脚本对整个数据处理流程进行了详细说明。