Report for H12412

Locality:	Long Island Sound
Sublocality:	Offshore of Norwalk, CT
State(s) or Region(s):	New York

Start Date:	2012-08-25
End Date:	2012-09-27

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 H12412

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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.
H12412_DR.pdf	25.78MB	The document may be read using a free Adobe Reader.
NOAA/NOS ISO metadata record
H12412 View / Download H12412.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

Variable Resolution Bathymetric Attributed Grid
Survey products may use different units, datums or projections than the associated survey. Please consult product-specific metadata for additional details.
H12412_MB_VR_MLLW.bag	963.78MB	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.
H12412		XYZ format.

Images

GeoImagePDF
H12412_GeoImage.pdf	21.92MB	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.
H12412_MBAB_90cm_S222_400kHz_3of3.tiff	88.22MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H12412_MBAB_85cm_3102_400kHz_2of3.tiff	19.69MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H12412_MBAB_30cm_3101_400kHz_1of3.tiff	45.56MB	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 H12412 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
H12412_BottomSamples.ascii	0.7KB	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12412_tn.pdf	42.1KB	This document may be read using a free Adobe Reader.
NOAA/NOS Tide Zone in PDF format
H12412_tz.pdf	0.54MB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
H12412_ProjectSketch.jpg	69.6KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
OPR-B340-TJ-12_DAPR.pdf	4.57MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality

Sublocality

State or Region

Long Island Sound

Offshore of Norwalk, CT

New York

Start Date	End Date	Approval Date
2012-08-25	2012-09-27

Project Number	Project Name	Purpose
OPR-B340-TJ-12	Long Island Sound, NY	Update Nautical Chart(s)

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		10000

Tide Note

Tide Zones

Survey Tide Stations

COOPS Tide Station ID

Kings Point, New York	8516945
Bridgeport, Connecticut	8467150
New Haven, Connecticut	8465705

Affected Products

ENCs

RNCs

US5NY14M US5CN11M

12368 12365 12364 12363

Junction Surveys

H10565

Survey Equipment

Vessel(s)

Chief(s) of Party

THOMAS JEFFERSON Jensen Launch 3101

THOMAS JEFFERSON Jensen Launch 3102

NOAA Ship THOMAS JEFFERSON

Lawrence T. Krepp

Manufacturer	Model	Instrument Type
Sea-Bird Scientific	SBE 19plus	Conductivity, Temperature, and Depth Sensor
ODIM Brooke Ocean	MVP100	Conductivity Temperature and Depth Sensor
Applanix	POS MV 320 v4	Positioning and Attitude System
Reson	7125 SV1	MBES
Reson	7125 ROV	MBES

Source Data at NCEI

Data in Archive

Size (in GB)

Date Archived

Data Types Surveyed

Raw and Processed

326.716

2020-09-14 18:02:37.0

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