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 F00828 Locality: Narragansett Bay, RI Sublocality: Allen Harbor State(s) or Region(s): Rhode Island Start Date: 2021-05-18 End Date: 2021-05-18 These data are not to be used for navigation. For navigation please refer to NOS Nautical Charts. Download All Products for F00828 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. F00828_DR.pdf 0.77MB The document may be read using a free PDF reader. F00828_DR.xml 32.0KB Descriptive Report in XML format. May be opened using a web browser or text viewer. NOAA/NOS ISO metadata record F00828 View / Download F00828.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) The BAG format is a gridded, multi-dimensional bathymetric data file readable with geospatial visualization software (various commercial solutions, freeware, and open source applications are available). The BAGXYZ files are ascii representations of the BAG data in XYZ format, but do not include uncertainty. F00828_MB_50cm_MLLW_1of1.bag 8.24MB Ellipsoid Referenced BAG Files Ellipsoid referenced Bag files have a vertical datum that may differ materially from the charted datum. Please refer to the file level metadata to ensure proper display. F00828_MB_50cm_Ellipsoid_1of1.bag 7.62MB Imagery GeoImagePDF Georeferenced PDF file including chart and survey layers. F00828_GeoImage.pdf 3.93MB NOAA/NOS multibeam acoustic backscatter mosaic in TIFF format The multibeam acoustic backscatter mosaic is readable with geospatial visualization software (various commercial solutions, freeware, and open source applications are available). F00828_MBAB_2m_S3007_400kHz_1of1.tif 255.8KB Project Documents Data Acquisition and Processing Report in PDF format S-B905-NRTNL-21_DAPR.pdf 287.5KB Survey Metadata Survey Summary Locality Sublocality State or Region Narragansett Bay, RI Allen Harbor Rhode Island Start Date End Date Approval Date 2021-05-18 2021-05-18 2022-12-05 Project Number Project Name Purpose S-B905-NRTNL-21 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 19 10000 Affected Products ENCs RNCs US5PVDED US5PVDEC Survey Equipment Vessel(s) Chief(s) of Party S3007 LTJG Mark Meadows Manufacturer Model Instrument Type AML Oceanographic SV-Xchange Sound Speed System YSI CastAway-CTD Conductivity, Temperature, and Depth Sensor Applanix POS MV 320 v5 Positioning and Attitude System Kongsberg Maritime EM 2040C MBES Source Data at NCEI Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 23.622 2026-03-27 03:39:57.0 BACKSCATTER, BATHYMETRY