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Report for H12801 Locality: Rhode Island Sound and Approaches Sublocality: Nomans Land State(s) or Region(s): Rhode Island Start Date: 2015-06-10 End Date: 2015-07-24 These data are not to be used for navigation. For navigation please refer to NOS Nautical Charts. Downloads may take a long time, depending on file size and data transfer rates. Download All Products for H12801
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Survey Products

Descriptive Report and Metadata Documents

NOAA/NOS Descriptive Report
Products listed in the project descriptive report (DR) may not reflect final products available through NCEI.
H12801_DR.pdf	8.25MB	The document may be read using a free Adobe Reader.
H12801_DR.xml	54.2KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO metadata record
H12801 View / Download H12801.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.
H12801_MB_2m_MLLW_Combined.bag	274.66MB
H12801_MB_1m_MLLW_1of2.bag	422.88MB
H12801_MB_2m_MLLW_2of2.bag	221.73MB
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.
H12801_MB_2m_Ellipsoid_Combined.bag	267.12MB
H12801_MB_2m_Ellipsoid_2of2.bag	216.97MB
H12801_MB_1m_Ellipsoid_1of2.bag	410.28MB
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.
H12801		XYZ format.

Images

GeoImagePDF
H12801_GeoImage.pdf	55.08MB	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.
H12801_MBAB_1m_S250_400kHz_2of2.tiff	145.27MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H12801_MBAB_1m_S250_400kHz_1of2.tiff	197.19MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.

Bottom Samples and Tide Documents

Bottom Sample Data
NOAA/NOS bottom sample listing in IMLGS (pre-1989)
Link to H12801 in IMLGS (pre-1989 samples)		Search NOAA/NOS seabed samples submitted to IMLGS through NMNH (pre-1989). Modern survey bottom samples are not currently viewable on a map service.
NOAA/NOS bottom sample document in PDF or ASC format
H12801_BottomSamples.ascii	1.1KB	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12801_tn.pdf	84.3KB	This document may be read using a free Adobe Reader.
NOAA/NOS Tide Zone in PDF format
H12801_tz.pdf	254.5KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
H12801_ProjectSketch.jpg	86.0KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
OPR-B307-FH-15_DAPR.pdf	10.49MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality Sublocality State or Region Rhode Island Sound and Approaches Nomans Land Rhode Island

Start Date End Date Approval Date 2015-06-10 2015-07-24 2016-07-20

Project Number Project Name Purpose OPR-B307-FH-15

Source of Original Data

Link to Original Data Data Source

Reference System Information

Vertical Datum Horizontal Datum Projection Scale Mean Lower Low Water North American Datum 1983 Projected UTM 19 20000

Tide Note Tide Zones Survey Tide Stations COOPS Tide Station ID Newport, Rhode Island 8452660

Affected Products

ENCs RNCs US5MA29M US4MA23M 13233 13218

Junction Surveys H12811 H12802 H12707 H11922 H11920

Survey Equipment

Vessel(s) Chief(s) of Party NOAA Ship FERDINAND R. HASSLER LCDR Briana J. Welton, NOAA

Manufacturer Model Instrument Type Teledyne RESON SVP 70 Sound Speed System ODIM Brooke Ocean MVP200 Conductivity Temperature and Depth Sensor Applanix POS MV 320 v5 Positioning and Attitude System AML Oceanographic Micro-CTD Conductivity Temperature and Depth Sensor Reson 7125 MBES

Source Data at NCEI

Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 523.543 2017-10-24 18:25:01.0 BACKSCATTER, BATHYMETRY