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UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
NEW GEODETIC REFERENCE FRAME NEW GEODETIC REFERENCE FRAME
““KOSOVAREV 01KOSOVAREV 01””
Bashkim IDRIZIIsmail KABASHI
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Overview:Overview:Basic data of the Republic of KosovaGeodetic
referent frame before year 2001KOSOVAREF 01
–
KOSOVAREF 01 –
1st
orderObservationsLink with EUREF permanent network
–
KOSOVAREF 01 –
2nd
order–
Transformation parameters
Transformation of cadastral data to KOSOVAREF01Proposal for
active GNSS networkAppendix: 1st order network of points in
KOSOVAREF01
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Basic data of the Republic of KosovoBasic data of the Republic
of KosovoArea: 10908km2Border line:
744km
Municipalities: 30Cities: 30Local cadastral offices: 30Cadastral
zones: 1301Cadastral parcels: ≈2milionPrivate property: 57%State
property: 43%Geodetic points 1st
order: 32
Geodetic points 2nd
order: 397
PointGeographic coordinates
φ λNorth 43º16’07.5’’
N 20º49’01.9’’
ESouth 41º50’50.1’’
N 20º37’36.8’’
EEast 42º38’48.0’’
N 21º47’42.7’’
EWest 42º44’10.4’’
N 20º01’10.9’’
ECenter 42º33’28.8’’
N 20º54’26.8’’
E
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Geodetic referent frame before year 2001Geodetic referent frame
before year 2001Part of former Yugoslavia federationHorizontal
network
Trigonometric networks in 4 ordersUrban networks
Vertical networkIINVT – II leveling of high accuracy
Parameters of the coordinate system:Datum HermannskogelEllipsoid
Bessel (1841)Map projection Gauss-Krüger (3°
zones)Central meridian 21°
EPrime meridian GreenwichPrime parallel EquatorScale factor
0.9999False easting 500000mFalse northing 0mElevation origin Mean
sea level –
Molo Sartorio, Trieste, Italy. Units Meter (m)
-
Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
KOSOVAREF 01KOSOVAREF 01Established on year 2001 as Kosova
Referent System – KOSOVAREF01Reference network of Kosova in 3
orders
1st orders is in state level,2nd and 3rd are local networks
within the municipalities and centers.
Coordinate system has bellow parameters:Datum ETRS89Ellipsoid
GRS 80Map projection Gauss-Krüger (3°
zones)Central meridian 21°
EPrime meridian GreenwichPrime parallel EquatorScale factor
0.9999False easting 7500000mFalse northing 0mElevation origin Mean
sea level –
Molo Sartorio, Trieste, Italy. Units Meter (m)
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
KOSOVAREF 01 KOSOVAREF 01 –– 11stst orderorder• Consists 32
points,
• 22 existing points of the trigonometric network
• 10 new points. • Homogenous network• Distances between points
15-25km• Period of observations: March 20 to April
12, 2001.• All points checked before measuring.• 5 points had to
be moved in safe areas. • Evaluated by long baseline
calculations
with EPN inbound and adjustment.• Accuracy:
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
• Measurements in 8 sectors separately.
• Link between sectors by using of the neighboring points along
border.
• For reliability –
second campaign after 1.5 week.
• Center point: FK01 in Fushe
Kosova.
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Details of measurements
-
Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
HIGH OBSERVATIONS
• 23 of 32 1st
order reference network points were connected by static GPS
measurements,
• to orthometric
highs from 11 (eleven) former FYR IINVT points. • Measurements
of excentrums
(where needed): with Leica
NA
3002• Selection of points in relation to former high reference
points:
• High range from about 100m• Maximum distance 15km.
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
• Geoid
ondulatinos
were
calculated based on European Gravimetric Geoid
1997 (EGG97) with resolution 1.5x1’.
• Differences between ellipsoidal highs, leveling and geoid, are
shown in the table.
• Differences between ellipsoidal and leveled hights
are from 44.19 to
45.62m, which theoritacly
should correspond to geoid(hell
-hlevel
=geoid)• Residuals comparing of
EGG97 in Kosovo, shown in last column of table and in next
map.
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Some systematic behavior of the residuals:-
in the eastern part generally a negative difference was
detected,
-
in the western part it was the oposite. The differences can
either be:-
due to the geoid
(anomalies,
offset and/or slight tilt), which might not be specific enough
for these local studies, or -
due to errors in the levelled
heights. After some investigations, it was found out that only
for three of the eleven used heightreference points adjusted IINVT
values were available!
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Link of KOSOVAREF 01 1Link of KOSOVAREF 01 1stst order order
with EUREF permanent network (EPN):with EUREF permanent network
(EPN):
Remark: Not overlapping with the networks on neighboring
countries (Macedonia, Albania, Montenegro and Serbia)!
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
KOSOVAREF 01 KOSOVAREF 01 –– 22ndnd orderorder• Period of
measurements: June 2001 –
November 2002.
• Consist: 397 points.• Measurement details:
Sessions: 2sesions per day, in different periods of day
Referent stations 2-3 stations in points of 1st
order
Measuring window Checked min. 5 Satellite by SKI PRO Almanac,
GDOP
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
-
Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Translations: ΔX=628.54052m, ΔY=192.25380m, ΔZ=498.43507m
Rotations: εX
= -13.79189”, εY
= -0.81467”, εZ
= 41.21533”Scale:
m=-17.40368ppm
Defining of global transformation parametersDefining of global
transformation parameters
The "global" 7 parameter transformation is not able to care for
local distortions!
-
Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Transformation of cadastral data to KOSOVAREF 01 using
Transformation of cadastral data to KOSOVAREF 01 using Finite
Element MethodFinite Element Method
The finite element method is an appropriate method for
homogenous and reversible transformations without gaps or
distortions.
The workflow for the Kosovo transformation project:1.Provisional
triangle network2.Determination of distortion vectors3.Improvement
of the transformation base4.Transformation of cadastral
data5.Quality checks
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
ITERATIVE APPROACH TO THE TRIANGLE NETWORK DESIGN
Definition of the triangles: iterative process.
The first draft of the triangle network :54 triangles.
The final triangle network:113 triangles.
Map used for the planning ofmeasurement campaign with
provisionaltriangles, color distinctions according needfor
additional measurements
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Period of measurements: January-August 2003.
-
Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
-
residuals (brown) of a global Helmert
transformation,
-26 pass points (red) -
areas with systematical
distortions (green)
The comparison of the transformed with the measured coordinates
shows
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Borderline Effects
–
Fictitious Transformation Base Points
Map with Fictitious Triangles (orange), used to cover the border
area of Kosovo (gray)
Transformation of Checkpoints
The average of the residual vectors of all transformed
checkpoints reached is 0.19m with a mean deviation of 0.10m. The
triple length of the average vector (0.57m) was used to set a
tolerance for the detection of gross errors.
-
Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Modification of Triangles
Map with changed TBPs
to get smaller, unsystematically distributed residuals in the
concerned area.-orange: new triangle -with brown: new residuals,
-red: old definition -green: residuals of old definition.
Final Triangle Network Residuals
Residuals of checkpoints after transformation with final
triangle network definition
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Residual vectors of checkpoints and quality over different
stages of transformation.
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
Map with distortion components of stretching/compression (blue)
and dilation (red), area of heterogeneities marked by arrows
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
-the effect of transformation on the areas of parcels is
neglectable
relative to the errors of vectorization, original surveying
data, drawing and distortion of cadastral plans.-even in areas
where residuals were big and distorted after transformation, the
relatively small area of parcels was not affected.-
The apparently big maximum area residual of 320.6m2
of a parcel in the cadastral zone Strpce
in Strpce
municipality is relatively small compared with the size of
this
rural parcel of
9.9km2!!!
TRANSFORMATION OF CADASTRAL DATA
In the case study, where transformed coordinates were compared
with new measured coordinates, an average difference of 0. 1 –
0. 15cm could be detected.
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
PROPOSAL FOR ACTIVE GNSS PROPOSAL FOR ACTIVE GNSS NETWORK OF
KOSOVANETWORK OF KOSOVA
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
APPENDIXAPPENDIX1st
order network of points in
KOSOVAREF01 in Kosovo
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Ass.Prof.Dr. Bashkim IDRIZI,
[email protected]. Ismail KABASHI,
[email protected]“New geodetic reference frame KOSOVAREF 01”
BALGEOS – second workshop, Vienna 2010
UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
www.uni-pr.edu
THANK YOU FOR YOUR ATTENTION!!!
In behalf of coauthors,
Bashkim
IDRIZI
www.uni-pr.edu
Ismail
KABASHI&
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UNIVERSITY OF PRISHTINAFaculty of Civil Engineering and
Architecture
Bashkim IDRIZIIsmail KABASHI
NEW GEODETIC REFERENCE FRAME NEW GEODETIC REFERENCE FRAME
““KOSOVAREV 01KOSOVAREV 01””
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