3288_Mineplat_HR_C - Alentejo shelf - folded structures & sorted bedforms- 4m res.

High resolution (1/512 minute ~ 3.6m) bathymetry dataset from the Mineplat 4 cruise onboard IPMA RV Noruega. Portugal southern continental shelf, off Alentejo coast, 24 March to 4 April 2019. Depths between 60 and 110m.

Seabed sediments sampling was performed during daytime and multibeam mapping during the night, with a Reson T50-P multibeam echosounder. Depths are referenced to the Portuguese Chart Datum (2m below MSL) and WGS84 horizontal reference frame. Position and attitude data (GNSS+Inertial via Applanix OceanMaster POSMV) was post-processed with POSPAC.

 
Citation proposal
Portuguese Institute of Ocean and Atmosphere. 3288_Mineplat_HR_C - Alentejo shelf - folded structures & sorted bedforms- 4m res.. https://services.mspdata.eu:/geonetwork/srv/api/records/SDN_CPRD_3288_Mineplat_HR_C

Simple

Alternate title

KN172L08 SeaBeam 3012-P1 Bathymetry Grid

Date ( Creation )
2020-11-12T00:00:00
Date ( Revision )
2020-11-12T00:00:00
Identifier

Mineplat_HR_C

  Originator

  (+351) 218 402 370 
Website
web site  

  Custodian

  (+351) 218 402 370 
Website
web site  
Project name ( Theme )

  • EMODNet Bathymetry

SeaDataNet device categories ( Theme )

  • multi-beam echosounders

    ,

    acoustic backscatter sensors

SeaDataNet device categories ( Theme )

  • Differential Global Positioning System receivers

Parameter Discovery Vocabulary (P02) ( parameter )

  • Bathymetry and Elevation

GEMET - INSPIRE themes, version 1.0 ( Theme )

  • Hydrography

Use limitation

Not for navigation

Access constraints
unrestricted
Use constraints
Copyright
Other constraints

EMODnet Bathymetry consortium (2018), EMODnet Digital High

Resolution DTM

Use limitation

Marine geology, seabed morphology, habitat mapping. Not suitable for navigation.

Spatial representation type
Grid
Denominator
5000
Distance
0.001953  Arc minute
Metadata language
English
Character set
UTF8
Topic category
  • Oceans
N
S
E
W


Unique resource identifier
Description

Map projection parameters, values and units :

Axes units :

UPPER LEFT X=29.3054583250

UPPER LEFT Y=44.6262830219

LOWER RIGHT X=40.7816282263

LOWER RIGHT Y=41.2281769950

WEST LONGITUDE=29° 18' 19.6500" E

NORTH LATITUDE=44° 37' 34.6189" N

EAST LONGITUDE=40° 46' 53.8616" E

SOUTH LATITUDE=41° 13' 41.4372" N

PROJ_DESC=Geographic (Latitude/Longitude) / WGS84 / arc degrees

PROJ_DATUM=WGS84

PROJ_UNITS=arc degrees

EPSG_CODE=4326

COVERED AREA=353215 sq km

Geographic identifier

EPSG

/

WGS84 / Geographic coordinate system

/

7.4

Reference system identifier

EPSG

/

WGS 84 (EPSG:4326)

/

7.4

Number of dimensions
3
Dimension name
Column
Dimension size
1536
Dimension name
Row
Dimension size
2049
Dimension name
Time
Dimension size
1
Cell geometry
Point
Transformation parameter availability
false
Checkpoint Availability
false
Point in Pixel
  • Center
Distribution format

  • NetCDF

    ()

  Distributor

  (+351) 218 402 370 
Website
web site  
Transfer size
86
Hierarchy level
Dataset

Vertical extent

Minimum value
60
Maximum value
112

Vertical CS

Vertical datum

Statement

no information

Hierarchy level
Feature
Dataset

accuracy

Gridded data positional accuracy

Name of measure

horizontal accuracy

Measure identification

horizontal accuracy of coordinate

Measure description

RTK GNSS corrections during most of the data acquisition periods.

Evaluation method description

GNSS/Inertial recorded data was post-processed with Applanix POSPAC

Quantitative result

Value type
horizontal accuracy

Quantitative attribute accuracy

Name of measure

depth

Measure identification

depth accuracy

Measure description

GPS-RTK was assured during most of the cruise. Surface Sound velocity (near the transducer) continuously acquired for beam steering.

Evaluation method description

GNSS/Inertial recorded data was post-processed with Applanix POSPAC, SV profiles were made every 8 to 12 hours. Crossing/overlaping survey lines allowed for QC.

Quantitative result

Value
not defined

Conformance result

Date
Explanation

No shoalbias was applied.

Hierarchy level
Software
Description

MB-System

Other

software

Hierarchy level
Property type
Description

parameters of data processing

Attributes
Statement

EMODnet processing methodology using Globe software

Description

CDIs: 3288_MB_MINEPLAT_4

Hierarchy level
Dataset

Absolute external positional accuracy

Name of measure

emodnet-bathymetry.QI.Horizontal

Value
3 - < 20 m

Absolute external positional accuracy

Name of measure

emodnet-bathymetry.QI.Vertical

Value
4 - MBES High frequency (higher that 100kHz) (1+0.5%d)

Domain consistency

Name of measure

emodnet-bathymetry.QI.Purpose

Value
2 - Bathymetric/morphologic survey

Metadata

File identifier
SDN_CPRD_3288_Mineplat_HR_C   XML
Metadata language
English
Character set
UTF8
Hierarchy level name

Composite Product Record

Date stamp
2020-12-07T11:16:01
Metadata standard name

ISO 19115:2003/19139 - EMODNET - BATHYMETRY

Metadata standard version

1.0

  Author

  (+351) 218 402 370 
Website
web site  
 
 

  Overviews


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Associated resources

Not available