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 H12786 Locality: Chesapeake Bay Sublocality: Point No Point to 3NM North State(s) or Region(s): Maryland Start Date: 2015-06-03 End Date: 2015-10-07 These data are not to be used for navigation. For navigation please refer to NOS Nautical Charts. Download All Products for H12786 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. H12786_DR.pdf 8.12MB The document may be read using a free Adobe Reader. H12786_DR.xml 57.4KB Descriptive Report in XML format. May be opened using a web browser or text viewer. NOAA/NOS ISO metadata record H12786 View / Download H12786.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. Bathymetric Attributed Grid (BAG) Data The BAG format is a gridded, multi-dimensional bathymetric data file (see Open Navigation Surface). Readable with various applications such as the free CARIS Easy View, ESRI ArcGIS or open source GDAL. The BAGXYZ files are ascii representations of the BAG data in XYZ format, but do not include uncertainty. H12786_MB_50cm_MLLW_1of1.bag 579.01MB 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. H12786 XYZ format. Images GeoImagePDF H12786_GeoImage.pdf 75.30MB NOAA/NOS Layered GeoSpatial Image PDF File. Created by NOS to include chart and survey layers in a georeferenced pdf format. NOAA/NOS sidescan sonar mosaic in TIFF format H12786_SSSAB_1m_540kHz_1of2.tiff 105.22MB NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer. H12786_SSSAB_1m_540kHz_2of2.tiff 103.74MB NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer. NOAA/NOS multibeam acoustic backscatter mosaic in TIFF format The multibeam acoustic backscatter mosaic is readable with various applications such as the free CARIS Easy View, or ESRI ArcGIS geospatial visualization software. H12786_MBAB_2m_5401_300kHz_1of1.tiff 8.45MB NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image. Bottom Samples and Tide Documents NOAA/NOS bottom sample document in PDF or ASC format H12786_BottomSamples.ascii 0.8KB NOAA/NOS bottom sample document in PDF or ASC format. NOAA/NOS Tide Note in PDF Format H12786_tn.pdf 38.8KB This document may be read using a free Adobe Reader. NOAA/NOS Tide Zone in PDF format H12786_tz.pdf 444.2KB This document may be read using a free Adobe Reader. Project Documents Project Sketch in JPEG format H12786_ProjectSketch.jpg 78.6KB Project sketch image with highlighted survey area. Data Acquisition and Processing Report in PDF format OPR-E349-BH2-15_DAPR.pdf 11.99MB This document may be read using a free Adobe Reader. Survey Metadata Survey Summary Locality Sublocality State or Region Chesapeake Bay Point No Point to 3NM North Maryland Start Date End Date Approval Date 2015-06-03 2015-10-07 2015-11-13 Project Number Project Name Purpose OPR-E349-BH2-15 Central 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 10000 Survey Tide Stations COOPS Tide Station ID Bishops Head, Maryland 8571421 Affected Products ENCs RNCs US5VA22M 12233 Survey Equipment Vessel(s) Chief(s) of Party NOAA BAY HYDRO II Manufacturer Model Instrument Type Kongsberg Maritime EM 2040 MBES EdgeTech 4200P SSS Source Data at NCEI Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 487.99 2017-07-31 13:48:17.0 BACKSCATTER, BATHYMETRY