SCR_Aerial_South_La_Jolla_SMR_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 South La Jolla SMR.

本栅格数据集是为海洋赠款（Sea Grant）南海岸海洋保护区（MPA, Marine Protected Area）基线项目开发，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”（编号：R/MPA 30 10-049）的组成部分。本研究区域为南海岸区域（South Coast Region, SCR）。影像分别于2002年采用OI DMSC MKII多光谱仪器采集，2012年则借助微软（Microsoft）UltraCam-X数码相机完成红、绿、蓝及近红外波段的影像采集。有关UltraCam-X相机系统及各波段波长的详细信息，可查阅影像数据交付介质支持文件夹内的《Microsoft Vexcel UltraCam X.pdf》文件，以及OceanSpaces.org服务器上的相关内容。本次分析的目标为表征并解析多个潮下带（subtidal）/潮间带（intertidal）、通用底质/植被类别的十年尺度变化。上述类别源自2001-2002年为圣地亚哥政府联盟（SANDAG）开展的栖息地分类工作中确定的分类体系，并与本项目2012年期间识别并制图的同类别进行对比。本次交付的影像文件采用GeoTIFF格式。更多有关分类体系与处理方法的细节，请参阅本文档的谱系（Lineage）章节。本栅格数据集包含对加利福尼亚州南海岸区域（SCR）从加利福尼亚州达纳点至帝国海滩的潮间带区域开展的变化检测分析成果，本特定数据集覆盖南拉霍亚SMR海域。