Systematic conservation planning for the Antarctic Peninsula Online Material

These files constitute the SCAR-IAATO Systematic Conservation Planning tool (code and data).Background information on the project and an introduction to features of value can be found: https://doi.org/10.26180/24023637Whilst anyone with basic coding experience can use the tool, including the incorporation of new data and generating alternative scenarios, it is recommended that users understand clearly what their objectives are and what scenarios they wish to test, so as to understand what inputs and outputs represent. Advice from those experienced in conservation planning will facilitate understanding of how changing input data, targets, costs or constraints, can influence the scenarios and outputs.The tourism visitor data used in the project, used to derive the max_tvis and max_tves rasters, were obtained from IAATO in early 2022. Increased capabilities in technology have allowed large data sets to be analysed more effectively and quickly than previously possible. This has brought to IAATO’s attention certain anomalies in the historical data and IAATO recommends that users utilise the most recent data for future analyses, which can be requested from IAATO (https://iaato.org/news-room/data-statistics).<b>Description of files:</b>"Peninsula_SCP_Code_May2025.R" - This R script provides the code to run the conservation planning scenarios using the provided data. Instructions are provided in the script for installing necessary packages etc."PUID_1km.tif" - This raster layer is a grid of the 1km2 planning units used in the analysis. "cost_1km_tvis_scaled_S.tif" and "cost_1km_tves_S.tif" - These two raster layers contain the cost data for both visitor (tvis) and vessel (tves) scenarios."ASPA_1km.tif" - This raster layer identifies which planning units contain ASPAs"max_tvis_1km.tif" and "max_tves_1km.tif" - These two raster layers contain maximum visitor or vessel numbers respectively per planning unit (calculated using data from the seasons 2015-2020 seasons).Primary_data Folder - This folder contains the rasters of the 54 conservation features of value used in the primary systematic conservation planning analysis.Target folder - This folder contains the adjusted and unadjusted targets as derived by experts for use in the systematic conservation planning scenarios.

本数据集包含SCAR-IAATO系统保护规划工具（SCAR-IAATO Systematic Conservation Planning tool）的代码与配套数据。本项目的背景信息及保护价值特征介绍可通过以下链接获取：https://doi.org/10.26180/24023637

尽管具备基础编程经验的使用者即可运行该工具，包括导入新数据与生成备选规划场景，但仍建议使用者明确自身研究目标与待测试的场景类型，以便正确理解各类输入与输出参数的含义。若能咨询保护规划领域的资深从业者，将有助于使用者更好地理解输入数据、保护目标、成本参数或约束条件的调整如何对规划场景及输出结果产生影响。

本项目中用于生成max_tvis与max_tves栅格的旅游访客数据，于2022年初从国际南极旅游经营者协会（International Association of Antarctica Tour Operators, IAATO）处获取。技术能力的提升使得大规模数据集的分析效率与速度较以往大幅提升，这也让IAATO注意到历史数据中存在的部分异常值，因此IAATO建议使用者在后续分析中采用最新数据，最新数据可通过IAATO官网申请获取（https://iaato.org/news-room/data-statistics）。

<b>文件说明：</b>
- `Peninsula_SCP_Code_May2025.R`：该R脚本包含利用配套数据运行保护规划场景的代码，脚本内附带了必要依赖包的安装及其他操作说明。
- `PUID_1km.tif`：该栅格图层为本次分析中使用的1平方千米规划单元网格。
- `cost_1km_tvis_scaled_S.tif`与`cost_1km_tves_S.tif`：这两个栅格图层分别包含访客场景（tvis）与船舶场景（tves）对应的成本数据。
- `ASPA_1km.tif`：该栅格图层用于标识包含南极特别保护区（Antarctic Specially Protected Area, ASPA）的规划单元。
- `max_tvis_1km.tif`与`max_tves_1km.tif`：这两个栅格图层分别存储了每个规划单元的最大访客数与最大船舶数（数据基于2015-2020年的观测季节计算得到）。
- Primary_data文件夹：该文件夹包含了本次核心系统保护规划分析中用到的54项保护价值特征栅格数据。
- Target文件夹：该文件夹包含了专家制定的、用于系统保护规划场景的调整后与未调整的保护目标数据。