3288_Mineplat_HR_B - Alentejo shelf - paleo-channels - 4m res.

High resolution (1/448 minute ~ 4m) composite bathymetry dataset from the Mineplat 3 and Mineplat 4 cruises onboard IPMA RV Noruega. Portugal southern continental shelf, off Alentejo coast, 8 to 20 June 2018 and 24 March to 4 April 2019. Depths between 20 and 115m. During Mineplat 3 cruise high resolution multichannel seismics and magnetic data acquisition was performed during the daytime and multibeam mapping 24h/24h, with a Reson T50-P multibeam echosounder. Mineplat 4 cruise comprised seabed sediments sampling during daytime and multibeam mapping during the night. Depths are referenced to the Portuguese Chart Datum (2m below MSL), horizontal coordinates in the WGS84 reference frame. Position and attitude data (GNSS+Inertial via Applanix OceanMaster POSMV) was post-processed with POSPAC.

Simple

Alternate title
KN172L08 SeaBeam 3012-P1 Bathymetry Grid
Date (Creation)
2020-11-18T00:00:00
Date (Revision)
2020-11-19T00:00:00
Identifier
Mineplat_HR_B
Originator
  Portuguese Institute of Ocean and Atmosphere
Rua C do Aeroporto , Lisbon , 1749-077 , Portugal
(+351) 218 447 000
(+351) 218 402 370
http://www.ipma.pt
Custodian
  Portuguese Institute of Ocean and Atmosphere
Rua C do Aeroporto , Lisbon , 1749-077 , Portugal
(+351) 218 447 000
(+351) 218 402 370
http://www.ipma.pt
Custodian
  Portuguese Institute of Ocean and Atmosphere
Rua C do Aeroporto , Lisbon , 1749-077 , Portugal
(+351) 218 447 000
(+351) 218 402 370
http://www.ipma.pt
Project name
  • EMODNet Bathymetry
SeaDataNet device categories
  • multi-beam echosounders
  • acoustic backscatter sensors
SeaDataNet device categories
  • Differential Global Positioning System receivers
Parameter Discovery Vocabulary (P02)
  • Bathymetry and Elevation
GEMET - INSPIRE themes, version 1.0
  • Hydrography
Access constraints
Creative Commons Attribution 4.0 International
Use constraints
Other restrictions
Other constraints
DO NOT USE FOR NAVIGATION
Spatial representation type
Grid
Denominator
5000
Distance
0.0022321  Arc minute
Metadata language
English
Character set
UTF8
Topic category
  • Oceans
Begin date
2018-06-08T09:00:00
End date
2019-04-04T09:00:00
N
S
E
W
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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
2688
Dimension name
Row
Dimension size
1792
Dimension name
Time
Dimension size
1
Cell geometry
Point
Transformation parameter availability
No
Checkpoint Availability
No
Point in Pixel
  • Center
Distribution format
  • NetCDF ( )

Transfer size
132
OnLine resource
Mineplat_HR_B - Format EMO ( WWW:DOWNLOAD )

Mineplat_HR_B - Format EMO

OnLine resource
EMODnet Bathymetry WMTS service ( WWW:LINK )
OnLine resource
EMODnet viewer ( WWW:LINK )
Hierarchy level
Dataset

Vertical extent

Minimum value
24
Maximum value
117

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
RTK GNSS corrections during most of the data acquisition periods. Surface Sound velocity (near the transducer) continuously acquired for beam steering. SV profiles every 8 to 12 hours.
Evaluation method description
GNSS/Inertial recorded data was post-processed with Applanix POSPAC, Crossing/overlaping survey lines allowed for QC.

Quantitative result

Value
not defined

Conformance result

Date
Explanation
No shoal bias 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_3, 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
File identifier
SDN_CPRD_3288_Mineplat_HR_B XML
Metadata language
English
Character set
UTF8
Hierarchy level name
Composite Product Record
Date stamp
2025-03-07T14:09:10.468047Z
Metadata standard name
ISO 19115:2003/19139 - EMODNET - BATHYMETRY
Metadata standard version
1.0
Author
  Portuguese Institute of Ocean and Atmosphere
Rua C do Aeroporto , Lisbon , 1749-077 , Portugal
(+351) 218 447 000
(+351) 218 402 370
http://www.ipma.pt
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
Hydrography
Project name
EMODNet Bathymetry
SeaDataNet device categories
Differential Global Positioning System receivers acoustic backscatter sensors multi-beam echosounders

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