North Central Coast: Aerial surveys and classification of Duncans Mills Intertidal Habitats, 2010

This intertidal habitat classification dataset was developed for the Sea Grant MPA Baseline Program as part of the project “High Resolution Nearshore Substrate Mapping and Persistence with Multispectral Aerial Imagery” (#R/MPA17 09-015). The study region is the California North Central Coast (NCC). This particular file shows coverage of the USGS Duncans Mills orthoquad region. Ocean Imaging acquired the imagery used for this analysis using the Digital Multispectral Camera (DMSC). Fugro EarthData acquired the imagery used for this project between 09/22/2010 – 09/23/2010 and delivered fully georeferenced and orthorectified, 12-bit imagery with a spatial resolution of 0.30 meters to OI in 2011. Details on these systems and the data processing are below in the Lineage section of this document. Individual DMSC and ADS40 image tiles were mosaicked into sections based on the USGS orthoquads for the California North Central Coast in order to generate the multispectral imagery required to produce the habitat classification thematic maps of the California North Central Coast’s intertidal region and kelp beds from Pigeon Point up to Point Arena, including select bays and river mouths designated as MPAs. Additional information on the classification procedures used are outlined in the Methods and Sampling section of this document. This dataset was originally uploaded to Oceanspaces (http://oceanspaces.org/) in 2013 as part of the North Central Coast baseline monitoring program. In 2022 this dataset was uploaded to the California Ocean Protection Council Data Repository by Mike Esgro ([e-mail]) and Rani Gaddam ([e-mail]). The imagery and habitat classification products have been included in the dataset as ERDAS Imagine (.img), GeoTif (.tif) and ESRI shapefile formats. Every attempt has been made to include all of the original data and metadata, submitted in 2013, but please contact the Data Set Contacts with any questions. The long-term California MPA boundary and project info tables referenced in this dataset can be found as a separate dataset here: https://opc.dataone.org/view/doi:10.25494/P64S3W.

本潮间带生境分类数据集是为海洋资助计划（Sea Grant）海洋保护区（Marine Protected Area, MPA）基线项目开发，作为“基于多光谱航空影像的高分辨率近岸底质制图与持久性研究”（项目编号：#R/MPA17 09-015）的子项目成果。研究区域为加利福尼亚中北海岸（California North Central Coast, NCC）。本文件覆盖美国地质调查局（United States Geological Survey, USGS）邓肯斯米尔正射图幅区域。本次分析所用影像由海洋成像公司（Ocean Imaging, OI）采用数字多光谱相机（Digital Multispectral Camera, DMSC）采集。本项目所用影像由富格地球数据公司（Fugro EarthData）于2010年9月22日至23日采集，并于2011年将经过完全地理配准与正射校正、空间分辨率为0.30米的12位影像交付给OI。关于采集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。研究人员将单幅DMSC与ADS40影像瓦片按照加利福尼亚中北海岸的USGS正射图幅进行拼接，以生成所需的多光谱影像，进而制作该区域从鸽子角（Pigeon Point）至阿雷纳角（Point Arena）的潮间带生境与海带床分类专题地图，其中包含部分被划定为海洋保护区的海湾与河口区域。本研究所用分类流程的详细说明，请参见本文档的“方法与采样”章节。本数据集最初于2013年作为中北海岸基线监测项目的一部分上传至Oceanspaces平台（http://oceanspaces.org/）。2022年，迈克·埃斯格罗（[e-mail]）与拉尼·加达姆（[e-mail]）将本数据集上传至加利福尼亚海洋保护委员会数据仓库。本数据集包含的影像与生境分类产品采用ERDAS Imagine（.img）、GeoTif（.tif）与ESRI形状文件（shapefile）格式存储。本数据集已尽可能完整保留2013年提交的原始数据与元数据，如有任何疑问，请联系数据集联系人。本数据集引用的加利福尼亚长期海洋保护区边界与项目信息表可通过以下链接获取独立数据集：https://opc.dataone.org/view/doi:10.25494/P64S3W。