docPreliminary results from the 2010 quality assessment of cadastre
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Preliminary results from the 2010 quality assessment of cadastre
Agency for Restructuring and Modernisation of Agriculture | Poland ______________________________________________________________________________________________________ Preliminary results from the 2010 quality assessment of cadastre based LPIS in Poland 16th GeoCAP Annual Conference: Geomatics in support of the CAP Bergamo, Italy, November 24th – 26th Rafał Zawadzki Reference Databases Department rafal.zawadzki@arimr.gov.pl Agency for Restructuring and Modernisation of Agriculture | Poland ______________________________________________________________________________________________________ What is ARMA? The Agency for Restructuring and Modernisation of Agriculture was established in 1994 with the aim of supporting the agriculture and rural development. ARMA has been designated by the Government of the Republic of Poland to perform the role of an accredited paying agency. Organizational structure The structure of ARMA comprises three levels – the Headquarters, 16 Regional Offices in each voivodship and 314 Local Offices. More information: http://www.arimr.gov.pl ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki Area of Poland Cadastral parcels Reference parcels 312 000 km2 34 696 000 32 869 000 – – – Reference Parcel = Cadastral Parcel Direct Payments 2010: Declared area Applications Reference parcels (declared) Average farmer’s area 141 000 km2 (45%) 1 373 000 10 396 000 (30%) 10,3 ha – – – – ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki EGiB ORTO DTM PUWG PRG i RM TERYT Cadastral Parcel Aerial and satelite image (0,25- 0,5 m) Digital Terrain Model National geodesy reference system Administration’s borders of Poland . Basic administartion’s divide of Poland Ministry of Administration GIS layer’s in LPIS - 1 Nature 2000, National Park, OSN, Single tree. GUS Ministry of Enviromental GIS layer’s in LPIS - 1 Aforestation, Short term rotation forest, no good agriculture condition 30.06.2003 r., land use (9 type), ditch, small pond <100 m sq. ARMA 4 PEG = GO - PZ PZ GO PZ – noneligible land GO – cadastral parcels TN – arable land- not declared for payment , contained in PEG Agency for Restructuring and Modernisation of Agriculture ________________________________________________________________________________________________________ Sample pre‐selection… SATELITE GEOEYE1 IKONOS QuickBird WorldView2 Num. Zone Count 12 13 1 22 48 ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki Sample pre‐selection… • 3750 parcels (1250 for inspection), • localization: • 16/16 voivodships, • 92/379 poviats, • 258/2478 municipalities , • 1887/53949 geodetic districts, • area: • min – 57 m2, • max – 177 ha, • avg – 2 ha RP’s area (ha) Number % (cum.) (cum.) <0,01 7 1% <0,1 24 4% <0,2 82 12% <0,5 238 34% <1,0 384 57% >2,00 516 77% ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki 679 parcels taken into account… parallel investigations… (not official results!) LPIS data quality measures • LPIS total eligible area (10201) • Expectation – 98% : 102% • Result – 100,32% • Proportion of RPs with incorrect recorded area (10202) • Expectation – < 5% (34 of 679 ) • Result – 19,44% (132 of 679 ) DRAFT RESULTS ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki 606 parcels taken into account… parallel investigations… (not official results!) LPIS data quality measures • Distribution of RPs, according to the correctness of the eligible area recorded (10203) Rate 0 ‐2% 2 – 4% 4 – 8% 8 – 12% 12 – 20% 20 – 50% > 50% Number of RP 491 69 61 18 24 9 7 % of RP 72 10 9 3 4 1 1 DRAFT RESULTS ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki 606 parcels taken into account… parallel investigations… (not official results!) LPIS data quality measures • Categorization of the RP with incorrect recorded area (10204) • Changes of the underlying land were not applied – • Revisions of the Regulations were not applied – • Incomplete processing – • Erroneous processing – • Incompatible LPIS design – Yes No No/Yes Yes/No No If farmers do not report any land cover/use changes and there is no on the spot check → no information about changes of the land cover → no changes applied before „standard” updating process (3 – 4 years cycle). DRAFT RESULTS ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki 606 parcels taken into account… parallel investigations… (not official results!) LPIS data quality measures • Occurrence of RP with potential critical defects (10205) • Inability to identify LUI boundaries – waivered Reference (cadastral) parcel boundaries represent property, separate layer represent land cover. About 38% of RPs have at least one border that doesn’t match distinctive land features or follow well identifiable limits of land cover and/or land use. • Discontinuity – waivered No cases, not expected. • Total absence of eligible feature No cases (so far). • Multi‐parcel and multi‐polygon reference parcel – waivered According to the cadastral (= reference) parcel definition, there can’t be any multi* spatial object (in LPIS database). DRAFT RESULTS ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki 606 parcels taken into account… parallel investigations… (not official results!) LPIS data quality measures • Ratio of declared area in relation to the maximum eligible area inside the reference parcel (10206) • Expectation – >= 95% of RPs to be fully declared • Result – 87,15% („properly” declared) DRAFT RESULTS ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki • Orthoimages used for CwRS are not proper for the LPIS quality assessment – bigger pixel size than „base” LPIS’s orthoimages, „low” quality. If we assess actuality – tresholds should be changed. If we assess accuracy – ortophotos should be changed... • Tolerance – RP shape, piksel size and perimeter not taken into acount. • If CwRS’s zones applied ‐ LPIS QA results (ETS) might be contaminated… • Additional test – when RP is non – conforming then compare total eligible area for all parcels in farm with ETS elegible area. • Quality assessment is performed on „old” data due to parallel LPIS update processes – detailed analysis and clarification of the data results contained in the annual report, may be not proper for the „actual” state of LPIS data. • And much more… ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki Agency for Restructuring and Modernisation of Agriculture | Poland ______________________________________________________________________________________________________ Thank you… ______________________________________________________________________________________________________________ GeoCAP Conference: Gomatics in support of the CAP, Bergamo, Nov 24th – 26th | LPIS quality assessment in Poland| Rafał Zawadzki
