Constraining the spectral behavior of the clay-bearing outcrops in Oxia Planum, the landing site for ExoMars 2022 "Rosalind Franklin" rover: Supporting Datasets

This repository contains the supporting materials associated with Brossier et al. (2022), published in Icarus (https://doi.org/10.1016/j.icarus.2022.115114) - it includes: [Oxia_geo-units.shp] - Shapefiles (and auxiliary files) for the major geological units in Oxia Planum. They are defined and described in Ivanov et al. (2020) [doi: 10.1134/S0038094620010050] and Quantin-Nataf et al. (2021) [doi: 10.1089/ast.2019.2191]. [FeMg-clays_outcrops] - Shapefiles (and auxiliary files) for the clay-bearing outcrops identified and mapped in Oxia Planum (335.6E, 18N), through 12 CRISM hyperspectral targeted cubes. [Outside_clays_outcrops] - Shapefiles (and auxiliary files) for the clay-bearing outcrops identified and mapped in the catchment area (337E, 16.7N). [Spectra.xlsx] - Excel file including the reflectance (I/F) values for the CRISM spectra of the clay-bearing outcrops in Oxia Planum and its catchment area. All spectra are normalized for better comparison. [Oxia_SM1.pdf] - Supporting materials concerning the spectral analysis. [Oxia_SM2.pdf] - Supporting materials concerning the GIS analysis. Note: All imagery and altimetry datasets are available through the NASA PDS server (see link below).

本仓库包含与Brossier等人2022年发表于《伊卡洛斯》期刊的研究配套的支撑材料（原文DOI链接：https://doi.org/10.1016/j.icarus.2022.115114），具体涵盖以下内容：
- [Oxia_geo-units.shp]：欧克西亚平原（Oxia Planum）主要地质单元的形状文件（Shapefile）及配套辅助文件，其定义与详细描述参见Ivanov等人2020年发表的研究[DOI: 10.1134/S0038094620010050]以及Quantin-Nataf等人2021年发表的研究[DOI: 10.1089/ast.2019.2191]。
- [FeMg-clays_outcrops]：通过12幅CRISM高光谱目标立方体影像，在欧克西亚平原（坐标335.6E，18N）内识别并填绘的含铁镁黏土露头的形状文件及配套辅助文件。
- [Outside_clays_outcrops]：在汇水区（坐标337E，16.7N）内识别并填绘的含铁镁黏土露头的形状文件及配套辅助文件。
- [Spectra.xlsx]：包含欧克西亚平原及其汇水区内含铁镁黏土露头的CRISM光谱反射率（I/F）值的Excel文件，所有光谱均经过归一化处理以提升可比性。
- [Oxia_SM1.pdf]：涉及光谱分析的配套支撑材料。
- [Oxia_SM2.pdf]：涉及地理信息系统（GIS）分析的配套支撑材料。

备注：所有影像与测高数据集可通过美国国家航空航天局（NASA）行星数据系统（PDS）服务器获取（详见对应链接）。