SCR_Aerial_SanMiguelIsland_1999_2012_KelpPersistence

These raster and vector datasets were developed for the Sea Grant South Coast MPA Baseline Program as part of the project “Nearshore Substrate Mapping and Change Analysis using Historical and Concurrent Multispectral Imagery” (#R/MPA 30 10-049). The study region is the South Coast Region (SCR). Kelp thematic maps from 1999-2012 were used for this product. Ocean Imaging acquired the imagery and classification data used for this analysis from its own Digital Multispectral Camera (DMSC), the Microsoft UltraCam-X aerial camera system and from kelp habitat classifications archived by the California Department of Fish and Wildlife (CDFW). Details on this systems and the data processing are below in the Lineage section of this document. The persistence analyses show the persistence of kelp beds in the SCR and MPAs as a percentage of the number of years analyzed. The coverage area is from Conception, CA south to Imperial Beach, CA. The GIS analysis product files are deliverd are in GeoTIFF (.tif) and ESRI Shapefile formats as well as Adobe Acrobat PDF files. This raster dataset contains a persistence analysis of giant kelp beds along the California South Coast Region (SCR) from from Point Conception, CA down to Imperial beach, CA. This specific raster classification includes the Judith Rock SMR and Harris Point SMR. This dataset was originally uploaded to Oceanspaces (http://oceanspaces.org/) and the Knowledge Network for Biocomplexity (KNB, https://knb.ecoinformatics.org/data) in 2013 as part of the South Coast baseline monitoring program. In 2022 this dataset was moved to the California Ocean Protection Council Data Repository (https://opc.dataone.org/) by Mike Esgro ([e-mail]) and Rani Gaddam ([e-mail]). At that time the GIS analysis products were added to the dataset. The long-term California MPA boundary and project info tables can be found as a separate dataset here: https://opc.dataone.org/view/doi:10.25494/P64S3W.本栅格与矢量数据集是为海洋赠款计划（Sea Grant）南海岸海洋保护区（Marine Protected Area，简称MPA）基线项目开发，作为“基于历史与同期多光谱影像的近岸底质制图与变化分析（Nearshore Substrate Mapping and Change Analysis using Historical and Concurrent Multispectral Imagery，编号#R/MPA 30 10-049）”项目的组成部分。本研究区域为南海岸区域（South Coast Region，简称SCR）。本数据集采用了1999-2012年的巨藻（Kelp）专题图。Ocean Imaging公司通过其自有数字多光谱相机（Digital Multispectral Camera，简称DMSC）、微软（Microsoft）UltraCam-X航空相机系统获取了本分析所用的影像与分类数据，同时还使用了加州鱼类与野生动物局（California Department of Fish and Wildlife，简称CDFW）归档的巨藻栖息地分类数据。关于本成像系统与数据处理的详细说明，请参见本文档的“数据溯源（Lineage）”章节。持久性分析结果以研究统计年数占比的形式，展示了SCR区域及各MPA内巨藻床的留存情况。本数据集的覆盖范围为从加利福尼亚州孔塞普西翁角（Point Conception, CA）向南至加利福尼亚州帝国海滩（Imperial Beach, CA）的海域。本GIS分析产品文件采用GeoTIFF（.tif）、ESRI Shapefile以及Adobe Acrobat PDF格式存储。本栅格数据集针对加利福尼亚州南海岸区域（SCR）内，从孔塞普西翁角至帝国海滩的巨型巨藻床开展了持久性分析。本次特定栅格分类涵盖了朱迪思岩州立海洋保护区（Judith Rock SMR）与哈里斯角州立海洋保护区（Harris Point SMR）。本数据集于2013年作为南海岸基线监测项目的一部分，首次上传至Oceanspaces平台（http://oceanspaces.org/）与生物复杂性知识网络（Knowledge Network for Biocomplexity，简称KNB，https://knb.ecoinformatics.org/data）。2022年，由迈克·埃斯格罗（[e-mail]）与拉尼·加达姆（[e-mail]）将本数据集迁移至加州海洋保护委员会数据仓储库（California Ocean Protection Council Data Repository，https://opc.dataone.org/），同期为本数据集补充了GIS分析产品文件。长期加州MPA边界与项目信息表格可通过以下链接获取独立数据集：https://opc.dataone.org/view/doi:10.25494/P64S3W。