Title

IBCAO v. 5 (International Bathymetric Chart of the Arctic Ocean version 5)

Date (Creation)

2024-07-01

Date (Revision)

2024-07-01

Citation identifier

IBCAO_5

Abstract

Knowledge about seafloor depth, or bathymetry, is crucial for various marine activities, including scientific research, offshore industry, navigation, and ocean exploration. Mapping the central Arctic Ocean is challenging due to the presence of perennial sea ice, which limits data collection to icebreakers, submarines, and drifting ice stations. The International Bathymetric Chart of the Arctic Ocean (IBCAO) was initiated in 1997 with the goal of updating the Arctic Ocean bathymetric portrayal. The project team has since released four versions, each improving resolution and accuracy. Here, we present IBCAO Version 5.0, which offers a resolution four times as high as Version 4.0, with 100 × 100 m grid cells compared to 200 × 200 m. Over 25 % of the Arctic Ocean is now mapped with individual depth soundings, based on a criteria for what is considered mapped that depends on water depth. Version 5.0 also represents significant advancements in data compilation and computing techniques. Despite these improvements, challenges such as sea-ice cover and political dynamics still hinder comprehensive mapping.

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Stockholm University, Department of Geological Sciences		bathy@geo.su.se	Production center
Stockholm University, Department of Geological Sciences		bathy@geo.su.se	Product manager

Project name

• EMODNet Bathymetry

SeaDataNet device categories

• single-beam echosounders

• multi-beam echosounders

• gravimeters

• optical backscatter sensors

• bathymetric LiDARs

Parameter Discovery Vocabulary (P02)

• Bathymetry and Elevation

GEMET - INSPIRE themes, version 1.0

• Hydrography

SeaDataNet depth measurement reference planes

• mean sea level

Use limitation

Please acknowledge the following citation when using the IBCAO grids and maps:

To be announced. (Jakobsson et al. (2024), in review)

Access constraints

Creative Commons Attribution 4.0 International

Use constraints

Creative Commons Attribution 4.0 International

Use limitation

Not to be used for navigation.

Spatial representation type

Grid

Denominator

10000

Distance

100  meter

Language

English

Character set

UTF8

Topic category

• Oceans

Begin date

1958-01-01

End date

2023-11-03Before

Description

Map projection parameters, values and units :

Axes units :

Codespace

EPSG

Version

7.4

Reference system identifier

EPSG / WGS 84 / IBCAO Polar Stereographic (EPSG:3996) / 8.6

Number of dimensions

3

Dimension name

Column

Dimension size

58200

Dimension name

Row

Dimension size

58200

Dimension name

Time

Dimension size

1

Cell geometry

Point

Transformation parameter availability

Checkpoint Availability

Point in Pixel

• Center

Distribution format

Name	Version
GeoTIFF	1.0

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Stockholm University, Department of Geological Sciences		bathy@geo.su.se	Dissemination Unit

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Stockholm University, Department of Geological Sciences		bathy@geo.su.se	Dissemination Unit

Transfer size (in MB)

11400

OnLine resource

Protocol	Linkage	Name
WWW:LINK
WWW:LINK	https://tiles.emodnet-bathymetry.eu/	EMODnet Bathymetry WMTS service

Hierarchy level

Dataset

Statement

no information

Hierarchy level

Feature

Dataset

accuracy

Hierarchy level

Software

Other

software

Hierarchy level

Property type

Description

parameters of data processing

Statement

Data is collected by Stockholm University, analysed and cleaned by data processors, and combined into a grid with smoothing and interpolation methods to fill in blank regions without data.

Description

IBCAO Version 5 contains data from numerous sources and mapping methods, totalling roughly 1400 datasets. A majority of these are multibeam and single-beam datasets from research cruises, though they also include measurements from isolated soundings, lidar, optics, gravity data, interpolations, bathymetric charts, pre-generated grids, and steering points.

Hierarchy level

Dataset

Horizontal Quality Indicator

-1 - Multisources

Vertical Quality Indicator

-1 - Multisources

Purpose Quality Indicator

2 - Bathymetric

Metadata

File identifier

SDN_CPRD_2210_IBCAO_5

Metadata language

English

Character set

UTF8

Hierarchy level name

Product record

Date stamp

2024-09-10T09:54:20.671Z

Metadata standard name

ISO 19115:2003/19139 - EMODNET - BATHYMETRY

Metadata standard version

1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Stockholm University, Department of Geological Sciences		bathy@geo.su.se	Author