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.
 
Citation proposal
Portuguese Institute of Ocean and Atmosphere - Portuguese Institute of Ocean and Atmosphere. 3288_Mineplat_HR_B - Alentejo shelf - paleo-channels - 4m res.. https://services.mspdata.eu:/geonetwork/srv/api/records/SDN_CPRD_3288_Mineplat_HR_B

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

  (+351) 218 402 370 
Website
web site  

  Custodian

  (+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
0.0022321  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
2688
Dimension name
Row
Dimension size
1792
Dimension name
Time
Dimension size
1
Cell geometry
Point
Transformation parameter availability
false
Checkpoint Availability
false
Point in Pixel
  • Center
Distribution format
  • NetCDF ( )

Transfer size
132
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

Metadata

File identifier
SDN_CPRD_3288_Mineplat_HR_B   XML
Metadata language
English
Character set
UTF8
Hierarchy level name
Composite Product Record
Date stamp
2020-12-06T01:21:50
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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