SCR_Aerial_La_Jolla_Point_Loma_2002_2012_IntertidalChange

This raster dataset was 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). Imagery was acquired in 2002 using the OI DMSC MKII multispectral instrument and in 2012 using a Microsoft UltraCam-X digital camera acquiring in the red, green, blue and near-infrared bands. Information on the UltraCam-X camera system and wavelengths for each ban can be found in the file "The Microsoft Vexcel UltraCam X.pdf" included in the Support folder on the image data delivery media and on the OceanSpaces.org server. The goal of this analysis was to characterize and analyze the decadal-long change in several sub/intertidal, general substrate/vegetation classes. The classes were identified in habitat classifications created as part of 2001-2002 work completed for the San Diego Association of Governments (SANDAG), and compared to the same classes identified and mapped during 2012 as part of this project. The imagery files deliverd are in GeoTIFF format. More information on the classes resolved and processing methods are in the Lineage section of this document.This raster dataset contains a change detection analysis of the intertidal zone along the California South Coast Region (SCR) from from Dana Point, CA down to Imperial beach, CA. This specific dataset covers the La Jolla, CA to the Point Loma, CA region including the Cabrillo 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.

本栅格数据集是为海洋赠款南海岸海洋保护区（Marine Protected Area，MPA）基线计划开发的，作为项目“利用历史与同期多光谱影像开展近岸底质制图与变化分析”（#R/MPA 30 10-049）的一部分。研究区域为南海岸区域（South Coast Region，SCR）。2002年使用OI DMSC MKII多光谱仪器获取影像，2012年则使用Microsoft UltraCam-X数码相机获取红、绿、蓝及近红外波段影像。关于UltraCam-X相机系统及各波段波长的信息，可在影像数据交付介质的Support文件夹及OceanSpaces.org服务器上的文件《The Microsoft Vexcel UltraCam X.pdf》中查阅。

本分析的目标是表征并分析若干潮下带/潮间带通用底质/植被类别的十年尺度变化。这些类别是在2001-2002年为圣地亚哥政府协会（San Diego Association of Governments，SANDAG）完成的工作中所创建的栖息地分类中确定的，并与本项目2012年识别和制图的相同类别进行了对比。交付的影像文件采用GeoTIFF格式。关于已解析类别及处理方法的更多信息，请参见本文档的数据溯源部分。

本栅格数据集包含加利福尼亚南海岸区域（SCR）从加利福尼亚州达纳点至帝国海滩沿线潮间带的变化检测分析结果。本特定数据集覆盖加利福尼亚州拉霍亚至洛马角区域，包括卡布里洛特殊海洋区域（Special Marine Zone，SMR）。

本数据集最初于2013年作为南海岸基线监测计划的一部分上传至Oceanspaces（http://oceanspaces.org/）和生物复杂性知识网络（Knowledge Network for Biocomplexity，KNB，https://knb.ecoinformatics.org/data）。2022年，该数据集由Mike Esgro（[e-mail]）和Rani Gaddam（[e-mail]）迁移至加利福尼亚海洋保护委员会数据仓库（https://opc.dataone.org/），同期地理信息系统（Geographic Information System，GIS）分析产品被添加至数据集。

长期加利福尼亚MPA边界及项目信息表可在独立数据集（链接：https://opc.dataone.org/view/doi:10.25494/P64S3W）中获取。