Central Coast California GIS Products Metadata Compiled by Seafloor Mapping Lab at California State University Monterey Bay This document provides a general metadata summary of the marine habitat mapping data for the Central Coast region. These data were originally collected for the PG&E assessment of nearshore geomorphology (fault lines) in vicinity of the Diablo Canyon Power facility; and inclusion in the California Seafloor Mapping Program (CSMP). Detailed metadata are provided in xml format with each individual data file. Marine data offered here represent the efforts of a comprehensive state waters mapping program for California launched by the California State Coastal Conservancy, Ocean Protection Council, Department of Fish and Game, and the NOAA National Marine Sanctuary Program. The ultimate goal is the creation of a high-resolution 1:24,000 scale geologic and habitat base map series covering all of California's 14,500 km2 state waters out to the 3 mile limit, and support of the state's Marine Life Protection Act Initiative (MLPA) goal to create a statewide network of Marine Protected Areas (MPAs). This statewide project requires, involves and leverages expertise from industry, resource management agencies and academia. The tiered mapping campaign involves the use of state-of-the-art sonar, LIDAR (aerial laser) and video seafloor mapping technologies; computer aided classification and visualization; expert geologic and habitat interpretations codified into strip maps spanning California's land/sea boundary; and the creation of an online, publicly accessible data repository for the dissemination of all mapping products. Marine habitat mapping data for Central Coast/Morro Bay. Data products are presented at 2m, 5m and 10m spatial resolutions based on discrete depth ranges: 2m resolution for data from the 0-85m depth range, 5m resolution from 80-250m depth, 10m for 230m to the max depth for the survey. A 5m resolution export (5m_all) is included for the full survey footprint. CC_Block A1-A3 (North) April 9 and May 25-26, 29, 2009 CC_Block b (Pt Buchon, update 2011) March 13, 2010; May 26, 2010; July 5, 2011; merged with previously-released SFML data surveyed April 10, 19-20, 2009; May 9-11, 2007 CC_Block c (update 2011) March 15, 2010; May 26, 2010; July 5, 2011; August 23, 2011; merged with previously-released SFML data surveyed April 10, 18-24, May 1, 21-24, 27, 30-31; June 1-2, 10, 2009 CC_Block d (update 2011) March 15, 2010; May 26, 2010; August 22-23, 2011; merged with previously-released SFML data surveyed April 10, 18-24, May 1, 21-24, 27, 30-31; June 1-2, 10, 2009 CC_Block E (Mid) April 10, 18-24, May 1, 21-24, 27, 30-31 and June 1-2, 10, 2009 CC_Block F (South) June 3-10, 2009 CC_Block G (South) June 3-10, 2009 CC_Block H (South) June 3-10, 2009 CC_Block I (Avila Bay) May 2-5, 31 and June 1-9, 2009 CC_Block J (Avila Bay) May 2-5, 31 and June 1-9, 2009 Morro Bay March 30-31 and April 1-2, 2006 Morro Harbor October 26, 2007 MBES and side scan data for the Central Coast/Morro Bay nearshore region were acquired using a combination of several sonars (400KHz Reson 7125, 240 KHz Reson 8101, SEA SwathPlus) collected aboard the R/V VenTresca by the Seafloor Mapping Lab at California State University Monterey Bay. Prior to data collection, a series of planned survey lines were created using the survey navigation and planning software Hypack 2008 from Hypack, Inc. An Applanix POS/MV 320 v4 system with TrueHeave processing was used to provide position and attitude data during data collection and accounted for vessel motion such as heave, pitch, and roll (position accuracy ± 2m, pitch, roll and heading accuracy ±0.02°, heave accuracy ± 5% or 5cm) with input from a NAVCON 2050 GPS. See the Positional Accuracy section for full details. KGPS altitude data were used to account for tide cycle fluctuations and sound velocity profiles were collected with an Applied Microsystems SVPlus sound velocimeter. Data acquisition, post-processing, and final products derived from multibeam bathymetry data were handled by the Seafloor Mapping Lab at CSUMB.