NOAA > NESDIS > NCEI (formerly NGDC) > Marine Geology and Geophysics > Bathymetry & Relief privacy policy  All Bathy/Relief Coastal DEMs Fishing Global Lakes Multibeam NOS

Report for H12575 Locality: Approaches to Chesapeake Bay Sublocality: Chesapeake Bay Traffic Separation Schemes State(s) or Region(s): Virginia Start Date: 2013-07-18 End Date: 2013-07-30 These data are not to be used for navigation. For navigation please refer to NOS Nautical Charts. Download All Products for H12575 Download times vary depending on file size and data transfer rates. Individual product files may be downloaded via the links below. Launch this map service in full-screen view | Visit the full NCEI Bathymetric Data Viewer Survey Products Descriptive Report and Metadata Documents NOAA/NOS Descriptive Reports and Metadata Documents Products listed in these reports may not reflect final products available through NCEI. H12575_DR.pdf 4.15MB The document may be read using a free Adobe Reader. H12575_DR.xml 51.5KB Descriptive Report in XML format. May be opened using a web browser or text viewer. NOAA/NOS ISO metadata record H12575 View / Download H12575.xml Usually presented as an XML document, which captures the basic characteristics of HSMDB metadata verified from H10000 (1982) to the present as well as F00200 (1965) to the present. Bathymetry Survey products may use different units, datums or projections than the associated survey. Please consult product-specific metadata for additional details. Variable Resolution Bathymetric Attributed Grid H12575_MB_VR_MLLW_1of3.bag 524.63MB The Variable Resolution BAG format is a gridded, multi-dimensional, multi-resolution bathymetric data file (see Open Navigation Surface). Currently supported with open source GDAL. The BAGXYZ files are ascii representations of the BAG data in XYZ format, but do not include uncertainty. H12575_MB_VR_MLLW_2of3.bag 4.54MB The Variable Resolution BAG format is a gridded, multi-dimensional, multi-resolution bathymetric data file (see Open Navigation Surface). Currently supported with open source GDAL. The BAGXYZ files are ascii representations of the BAG data in XYZ format, but do not include uncertainty. H12575_MB_VR_MLLW_3of3.bag 10.79MB The Variable Resolution BAG format is a gridded, multi-dimensional, multi-resolution bathymetric data file (see Open Navigation Surface). Currently supported with open source GDAL. The BAGXYZ files are ascii representations of the BAG data in XYZ format, but do not include uncertainty. NOAA/NOS Sounding Data Download data from the Point Store database via NEXT (NCEI Extract System). Point soundings are from the survey Smooth Sheet or of similar density. Depths in meters. Horizontal datum is (converted to) NAD83 if possible. Vertical datum is (converted to) Mean Lower Low Water if possible. Please check the associated metadata to confirm the correct datums. The data file format is : SurveyID, Long, Lat, Depth. H12575 XYZ format. Images GeoImagePDF H12575_GeoImage.pdf 15.81MB NOAA/NOS Layered GeoSpatial Image PDF File. Created by NOS to include chart and survey layers in a georeferenced pdf format. Bottom Samples and Tide Documents NOAA/NOS Tide Note in PDF Format H12575_tn.pdf 40.2KB This document may be read using a free Adobe Reader. NOAA/NOS Tide Zone in PDF format H12575_tz.pdf 149.4KB This document may be read using a free Adobe Reader. Project Documents Project Sketch in JPEG format H12575_ProjectSketch.jpg 92.5KB Project sketch image with highlighted survey area. Data Acquisition and Processing Report in PDF format OPR-D304-FH-13_DAPR.pdf 7.07MB This document may be read using a free Adobe Reader. Survey Metadata Survey Summary Locality Sublocality State or Region Approaches to Chesapeake Bay Chesapeake Bay Traffic Separation Schemes Virginia Start Date End Date Approval Date 2013-07-18 2013-07-30 2013-12-04 Project Number Project Name Purpose OPR-D304-FH-13 Approaches to Chesapeake Bay Source of Original Data and License Information License Information These data were produced by NOAA and are in the public domain within the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0). View the license deed. View the legal code. Reference System Information Vertical Datum Horizontal Datum Projection Scale Mean Lower Low Water North American Datum 1983 Projected UTM 18 20000 Survey Tide Stations COOPS Tide Station ID Duck, North Carolina 8651370 Affected Products ENCs RNCs US5VA13M US5VA11M US3DE01M 12208 12200 Survey Equipment Vessel(s) Chief(s) of Party NOAA Ship FERDINAND R. HASSLER Manufacturer Model Instrument Type Reson 7125 MBES Source Data at NCEI Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 511.638 2014-11-18 02:05:19.0 BACKSCATTER, BATHYMETRY