Report for H13991

Start Date:	2024-08-03
End Date:	2025-03-14

These data are not to be used for navigation.
For navigation please refer to NOS Nautical Charts.

Download times vary depending on file size and data transfer rates.
Individual product files may be downloaded via the links below.

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Survey Products

NOAA/NOS Descriptive Reports and Metadata Documents
Products listed in these reports may not reflect final products available through NCEI.
H13991_DR.pdf	1.08MB	The document may be read using a free Adobe Reader.
H13991_DR.xml	53.2KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO metadata record
H13991 View / Download H13991.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.

Bathymetric Attributed Grid (BAG) Data
Survey products may use different units, datums or projections than the associated survey. Please consult product-specific metadata for additional details.
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.
H13991_MB_2m_MLLW_4of5.bag	71.96MB
H13991_MB_1m_MLLW_3of5.bag	44.46MB
H13991_MB_4m_MLLW_5of5.bag	6.15MB
H13991_MB_50cm_MLLW_1of5.bag	599.69MB
H13991_MB_1m_MLLW_2of5.bag	22.00MB

GeoImagePDF
H13991_GeoImage.pdf	16.59MB	NOAA/NOS Layered GeoSpatial Image PDF File. Created by NOS to include chart and survey layers in a georeferenced pdf format.
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.
H13991_MBAB_2m_400kHz_1of1.tif	33.29MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.

Data Acquisition and Processing Report in PDF format
OPR-A325-KR-24_DAPR.pdf	48.21MB	This document may be read using a free Adobe Reader.
Horizontal and Vertical Control Report in PDF Format
OPR-A325-KR-24_HVCR.pdf	2.14MB	This document may be read using a free Adobe Reader.

Locality

Sublocality

State or Region

Northern Massachusetts Bay

Gloucester Harbor

Massachusetts

Start Date	End Date	Approval Date
2024-08-03	2025-03-14	2025-06-05

Project Number	Project Name	Purpose
OPR-A325-KR-24

License Information
These data were produced under contract with NOAA and any potential copyright was assigned to NOAA. 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.

Vertical Datum	Horizontal Datum	Projection	Scale
Mean Lower Low Water	North American Datum 1983 (2011)	Projected UTM 19	5000

ENCs

RNCs

US5MA1UL US5MA1UK US5MA1TL US5MA1TK US5MA1TJ US5MA1SK US5MA1SJ

Junction Surveys

H13993 H13992

Vessel(s)

Chief(s) of Party

RV West Cove II

RV South Cove

John R. Bean

Manufacturer	Model	Instrument Type
AML Oceanographic	AML-3 LGR	Conductivity, Temperature, and Depth Sensor
Teledyne RESON	SeaBat T50-R	MBES
AML Oceanographic	Micro SV-Xchange	Sound Speed System
Velodyne LiDAR	VLP-16	Lidar System
Trimble	NetR9	Positioning System
Applanix	POS MV 320 v5	Positioning and Attitude System

Data in Archive	Size (in GB)	Date Archived	Data Types Surveyed
Raw Data Only	402.831	2025-07-30 18:34:17.0	BACKSCATTER, BATHYMETRY