Digital Geoid Models of Slovenia

The dataset of the national digital geoid models of Slovenia includes data for:

- the Slovenian absolute geoid model from the year 2000 (Slovenian SLOvenski Absolutni Model Geoida 2000) – SLOAMG2000 and

- the Slovenian height reference surface from the year 2016 (SLOvenska Višinska Referenčna Ploskev 2016) – SLO-VRP2016/Koper.

The models enable transformations between the ellipsoidal heights above the GRS80 ellipsoid in the geodetic datum D96 (ETRS89/D96) and the national height reference systems of:

- normal orthometric heights in the height datum Trst – SVS2000/Trst and

- normal heights in the height datum Koper – SVS2010/Koper.

SLOAMG2000 is a hybrid geoid model (astrogravimetric model) computed by least-squares collocation in the framework of a remove-restore procedure with the use of global geopotential model EGM96. Its resolution is 1ʹ × 1,5ʹ and covers 13,25° < λ < 16,75° and 45,25° < φ < 47,00°. The average geoid undulation is 46,453 m.

SLO-VRP2016/Koper is a hybrid quasi-geoid model. It is based on Stokes/Molodensky equations, the Fast Fourier Transform technique, and the use of global geopotential model EGM08. Its resolution is 30ʺ × 45ʺ and covers 13° < λ < 17° and 45° < φ < 47°. The average geoid undulation is 46,162 m. The outer accuracy (based on 871 control GNSS/levelling measurements along levelling lines) is up to 10 cm.

The data in this dataset are available in GRI (Gravsoft), GRD (Surfer Grid), and XYZ formats, and – on the ISG (International Service for the Geoid) web page – also in the ISG format.

 
Citation proposal
Geodetska uprava Republike Slovenije Geodetska uprava Republike Slovenije Surveying and Mapping Authority of the Republic of Slovenia (2000) . Digital Geoid Models of Slovenia. https://eprostor.gov.si/imps/srv/api/records/ce3aa31f-d6df-4976-abf0-31cb3b084a72
 

INSPIRE

Identification

File identifier
ce3aa31f-d6df-4976-abf0-31cb3b084a72   XML
Hierarchy level
Dataset
OnLine resource
Spatial Portal  
OnLine resource
Application Public Geodetic Data  
Identifier
SI.GURS.DMG / f0b80c1a-7832-4a17-b7b0-79dd8a491f74
Metadata language
Slovenian
Reference system identifier
http://www.opengis.net/def/crs/EPSG/0/3794 / http://www.opengis.net/def/crs/EPSG/0/3794 /
 

Classification of data and services

Topic category
  • Elevation
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Keywords

GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Coordinate reference systems
Other keywords
Keywords
  • Digital geoid model, geoid undulation
 
 

Geographic coverage

N
S
E
W


 

Temporal reference

Temporal extent
Temporal extent
Date ( Creation )
2000-05-21
Date ( Publication )
2000-05-21
Date ( Revision )
2000-05-21
 

Quality and validity

Lineage

The solution is given in the correct network (grid) 1.0' x 1.5', which in nature represents a square with a side 1 850 m.

Calculation with a combined solution is used by the following data:

- global geopotencial model EGM96

- digital relief model (detail 11.25'' x 18.75'' or rough 90'' x 150'')

- digital density model (detail 11.25'' x 18.75'' or rough 90'' x 150'')

- 99 points with measured values of vertical deflections

- 4 605 points of gravity anomalies

- 163 GPS/levelled points

Spatial resolution
Spatial resolution (scale)
 
Spatial resolution (distance)
Distance
1  m
 
 
Md. maintenance
 
Coordinate Reference System
code
http://www.opengis.net/def/crs/EPSG/0/3794
Encoding
Format
grd, csv, prn
Version
unknown
Specification
 

Conformity

Conformance result

Date ( Publication )
2014-04-11
Identifier
SOP / 2014-01-0962
Explanation
Glej referenčno specifikacijo
Pass
true
 

Conformity

Conformance result

Date ( Publication )
2014-04-11
Identifier
SOP / 2014-01-0962
Explanation
Glej referenčno specifikacijo
Pass
true
 

constraintsRelatedToAccessAndUse

Use limitation
useConstraint
 
Access constraints
Access constraints
 
 

constraintsRelatedToAccessAndUse

Use limitation
Use limitation
Splošni pogoji uporabe geodetskih podatkov: https://www.e-prostor.gov.si/dostopi/javni-dostop/?acitem=1821-1822
 
Access constraints
Access constraints
 
 

Responsible organization (s)

  Distributor

  Custodian

 

Responsible organization (s)

  Distributor

  Custodian

 

Metadata information

  Point of contact

Date stamp
2025-02-20T14:06:15
 
 

SDS

Conformance class 1: invocable

Access Point URL
Endpoint URL
Technical specification
 

Conformance class 2: interoperable

Coordinate reference system
 
Quality of Service
 
Access constraints
Limitation
 
Use constraints
Limitation
 
Responsible custodian
Contact for the resource
 
 

Conformance class 3: harmonized

 
 

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