Report for H13944

Locality:	Offshore Chicago and Michigan City
Sublocality:	7 NM East of Evanston
State(s) or Region(s):	Illinois

Start Date:	2024-09-12
End Date:	2024-10-20

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.
H13944_DR.pdf	1.27MB	The document may be read using a free PDF reader.
H13944_DR.xml	56.2KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO metadata record
H13944 View / Download H13944.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)
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 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.
H13944_MB_2m_LWD_1of2.bag	146.99MB
H13944_MB_4m_LWD_2of2.bag	56.75MB
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.
H13944_MB_4m_Ellipsoid_2of2.bag	55.34MB
H13944_MB_2m_Ellipsoid_1of2.bag	142.53MB

GeoImagePDF
Georeferenced PDF file including chart and survey layers.
H13944_GeoImage.pdf	8.25MB
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).
H13944_MBAB_2m_Benthos_300kHz_2of2.tif	4.28MB
H13944_MBAB_2m_Substantial_300kHz_1of2.tif	75.59MB

NOAA/NOS bottom sample document in PDF or ASC format
Bottom Sample files may reference the Coastal Marine Ecological Classification Standard (CMECS)
H13944_BottomSamples.ascii	1.9KB
NOAA/NOS bottom sample imagery
H13944_BottomSamples_shp_images.zip	5.06MB

Data Acquisition and Processing Report in PDF format
OPR-Y393-KR-24_DAPR.pdf	14.54MB

Locality

Sublocality

State or Region

Offshore Chicago and Michigan City

7 NM East of Evanston

Illinois

Start Date	End Date	Approval Date
2024-09-12	2024-10-20	2025-02-21

Project Number	Project Name	Purpose
OPR-Y393-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
Low Water Datum IGLD-1985	North American Datum 1983 (2011)	Projected UTM 16	20000

ENCs

RNCs

US4IL1YY

Junction Surveys

H13945 H13368

Vessel(s)

Chief(s) of Party

R/V Substantial

R/V Benthos

Nicholas Damm, CH

Manufacturer	Model	Instrument Type
Applanix	POS MV OceanMaster	Positioning and Attitude System
AML Oceanographic	AML-3 LGR	Sound Speed System
AML Oceanographic	3-RT Velocity Probe	Sound Speed System
AML Oceanographic	MVP30-350	Conductivity, Temperature, and Depth Sensor
Kongsberg Maritime	EM 2040C	MBES

Data in Archive	Size (in GB)	Date Archived	Data Types Surveyed
Source Data Not Available			BACKSCATTER, BATHYMETRY