GeoTiles

Map - Town index - Tile index

Relevant towns and neighbourhoods

Stieltjeskanaal (buurtschap)Weijerswold (buurtschap)Vlieghuis (buurtschap)Padhuis (buurtschap)Dalerveen (woonkern)De Vierslagen (industriekern)Westerse Bos (gehucht)Veenoord-Nieuw-Amsterdam (woonkern)Nieuw-Amsterdam (deelkern)Zandpol (woonkern)De Kuiperij (buurtschap)Schimmelarij (buurtschap)De Haar (gehucht)

Tile 22FN1

Actueel Hoogtebestand Nederland

Point cloud

The aerial photograph closest to the acquisition date of the AHN iteration was overlaid on the point cloud to produce a colored version for visualisation purposes. Furthermore, for each point cloud a spatial index and textual summary, including elevation histogram, are provided. Please note that the images are not from the same flight, and may be years off. Therefore, small alignment errors and differences occur between them.

Zoom in on the map to see tiled versions (25 tiles of 1×1.25 km). Tiled versions typically fit into memory (RAM) are easier to handle and are especially suitable for parallel processing and Machine Learning.

Version Point cloud Spatial index Info License
AHN1 Ground 22fn1.laz 113.9 MiB 22fn1.lax 85 kiB 22fn1.txt 9 kiB Stuurgroep AHN, public domain
Non-ground 22fn1.laz 4.3 MiB 22fn1.lax 73 kiB 22fn1.txt 10 kiB Stuurgroep AHN, public domain
Merged 22FN1.LAZ 118.2 MiB 22FN1.LAX 98 kiB 22FN1.txt 11 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN2 Ground g22fn1.laz 431.0 MiB g22fn1.lax 532 kiB g22fn1.txt 4 kiB Stuurgroep AHN, public domain
Non-ground u22fn1.laz 323.6 MiB u22fn1.lax 280 kiB u22fn1.txt 46 kiB Stuurgroep AHN, public domain
Merged 22FN1.LAZ 754.7 MiB 22FN1.LAX 2.0 MiB 22FN1.txt 46 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN3 Original C_22FN1.LAZ 1.7 GiB C_22FN1.LAX 1.6 MiB C_22FN1.txt 16 kiB Stuurgroep AHN, public domain
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN4 Original C_22FN1.LAZ 5.1 GiB C_22FN1.LAX 2.0 MiB C_22FN1.txt 40 kiB Het Waterschapshuis, public domain
Colored (Partially) available for sub-units. Remixed by GeoTiles*
AHN5 Original, 2023 Het Waterschapshuis, CC-BY
Original, 2024 Het Waterschapshuis, CC-BY
Colored (Partially) available for sub-units. Remixed by GeoTiles*

*The point cloud is in the public domain and the aerial photograph available under CC-BY. However, the colored point cloud is a new product created by GeoTiles.

File checksums (md5) are available for AHN1, AHN2, AHN3 and AHN4.

Raster

Version DSM DTM ('maaiveld') License
5 meter ½ meter 5 meter ½ meter
AHN1 22fn1.tif.zip public domain
AHN2 r22fn1.tif.zip ahn2_5_22fn1.tif.zip i22fn1.tif.zip public domain *
AHN3 R5_22FN1.zip R_22FN1.zip M5_22FN1.zip M_22FN1.zip CC-0
AHN4 R5_22FN1.zip R_22FN1.zip M5_22FN1.zip M_22FN1.zip CC-0 [1, 2, 3, 4]
AHN5 (2023) CC-BY
AHN5 (2024) CC-BY

Aerial photograph

Year Version GeoTiff Source License
2016 RGB RGB_22FN1.tiff 56.1 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_22FN1.tiff 50.7 MiB CC-BY 4.0
2017 RGB RGB_22FN1.tiff 74.2 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_22FN1.tiff 64.9 MiB CC-BY 4.0
2018 RGB RGB_22FN1.tiff 61.8 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_22FN1.tiff 58.6 MiB CC-BY 4.0
2019 RGB RGB_22FN1.tiff 57.2 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_22FN1.tiff 52.5 MiB CC-BY 4.0
2020 RGB RGB_22FN1.tiff 58.9 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_22FN1.tiff 53.5 MiB CC-BY 4.0
2022 RGB RGB_22FN1.tiff 56.2 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_22FN1.tiff 53.5 MiB CC-BY 4.0
2023 RGB RGB_22FN1.tiff 57.9 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_22FN1.tiff 58.1 MiB CC-BY 4.0

Sub-tiles 22FN1

Image adapted from Kadaster TOPraster and OpenTopo.

Actueel Hoogtebestand Nederland

Point cloud

These sub-tiles of 1×1.25 km are clipped from the original point cloud. Goal is to enable distributed processing of the point cloud. Therefore, a 25 m overlap to the neighbouring (sub-)tiles is added. Thanks to the overlap between sub-tiles, the sub-tiles can be processed independently and therefore parallel.

All other data sets on this website are only available in the main tiling schema.

Tile Version Point cloud Spatial index Info Residential areas License
22FN1_01 AHN1 22FN1_01.LAZ 8.9 MiB 22FN1_01.LAX 7 kiB 22FN1_01.txt 9 kiB Dalerveen AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_01.LAZ 54.2 MiB 22FN1_01.LAX 96 kiB 22FN1_01.txt 13 kiB
AHN3 22FN1_01.LAZ 75.5 MiB 22FN1_01.LAX 77 kiB 22FN1_01.txt 15 kiB
AHN4 22FN1_01.LAZ 396.8 MiB 22FN1_01.LAX 100 kiB 22FN1_01.txt 17 kiB
AHN5
22FN1_02 AHN1 22FN1_02.LAZ 9.1 MiB 22FN1_02.LAX 7 kiB 22FN1_02.txt 11 kiB Dalerveen, Schimmelarij, De Haar AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_02.LAZ 72.4 MiB 22FN1_02.LAX 98 kiB 22FN1_02.txt 19 kiB
AHN3 22FN1_02.LAZ 116.9 MiB 22FN1_02.LAX 83 kiB 22FN1_02.txt 14 kiB
AHN4 22FN1_02.LAZ 415.7 MiB 22FN1_02.LAX 100 kiB 22FN1_02.txt 15 kiB
AHN5
22FN1_03 AHN1 22FN1_03.LAZ 9.3 MiB 22FN1_03.LAX 7 kiB 22FN1_03.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_03.LAZ 109.5 MiB 22FN1_03.LAX 98 kiB 22FN1_03.txt 15 kiB
AHN3 22FN1_03.LAZ 189.2 MiB 22FN1_03.LAX 87 kiB 22FN1_03.txt 14 kiB
AHN4 22FN1_03.LAZ 524.7 MiB 22FN1_03.LAX 100 kiB 22FN1_03.txt 15 kiB
AHN5
22FN1_04 AHN1 22FN1_04.LAZ 9.7 MiB 22FN1_04.LAX 7 kiB 22FN1_04.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_04.LAZ 118.0 MiB 22FN1_04.LAX 98 kiB 22FN1_04.txt 14 kiB
AHN3 22FN1_04.LAZ 144.1 MiB 22FN1_04.LAX 84 kiB 22FN1_04.txt 13 kiB
AHN4 22FN1_04.LAZ 526.1 MiB 22FN1_04.LAX 100 kiB 22FN1_04.txt 14 kiB
AHN5
22FN1_05 AHN1 22FN1_05.LAZ 9.7 MiB 22FN1_05.LAX 7 kiB 22FN1_05.txt 12 kiB Veenoord-Nieuw-Amsterdam, Nieuw-Amsterdam, Zandpol AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_05.LAZ 104.2 MiB 22FN1_05.LAX 99 kiB 22FN1_05.txt 21 kiB
AHN3 22FN1_05.LAZ 139.7 MiB 22FN1_05.LAX 89 kiB 22FN1_05.txt 15 kiB
AHN4 22FN1_05.LAZ 500.8 MiB 22FN1_05.LAX 100 kiB 22FN1_05.txt 16 kiB
AHN5
22FN1_06 AHN1 22FN1_06.LAZ 9.1 MiB 22FN1_06.LAX 7 kiB 22FN1_06.txt 7 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_06.LAZ 44.8 MiB 22FN1_06.LAX 97 kiB 22FN1_06.txt 11 kiB
AHN3 22FN1_06.LAZ 68.9 MiB 22FN1_06.LAX 72 kiB 22FN1_06.txt 11 kiB
AHN4 22FN1_06.LAZ 308.0 MiB 22FN1_06.LAX 100 kiB 22FN1_06.txt 12 kiB
AHN5
22FN1_07 AHN1 22FN1_07.LAZ 9.5 MiB 22FN1_07.LAX 7 kiB 22FN1_07.txt 11 kiB Dalerveen AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_07.LAZ 66.3 MiB 22FN1_07.LAX 97 kiB 22FN1_07.txt 22 kiB
AHN3 22FN1_07.LAZ 95.9 MiB 22FN1_07.LAX 80 kiB 22FN1_07.txt 16 kiB
AHN4 22FN1_07.LAZ 305.6 MiB 22FN1_07.LAX 100 kiB 22FN1_07.txt 17 kiB
AHN5
22FN1_08 AHN1 22FN1_08.LAZ 9.2 MiB 22FN1_08.LAX 7 kiB 22FN1_08.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_08.LAZ 63.2 MiB 22FN1_08.LAX 98 kiB 22FN1_08.txt 15 kiB
AHN3 22FN1_08.LAZ 86.6 MiB 22FN1_08.LAX 76 kiB 22FN1_08.txt 14 kiB
AHN4 22FN1_08.LAZ 283.4 MiB 22FN1_08.LAX 100 kiB 22FN1_08.txt 15 kiB
AHN5
22FN1_09 AHN1 22FN1_09.LAZ 9.2 MiB 22FN1_09.LAX 7 kiB 22FN1_09.txt 10 kiB Stieltjeskanaal AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_09.LAZ 77.4 MiB 22FN1_09.LAX 98 kiB 22FN1_09.txt 16 kiB
AHN3 22FN1_09.LAZ 110.5 MiB 22FN1_09.LAX 78 kiB 22FN1_09.txt 14 kiB
AHN4 22FN1_09.LAZ 337.2 MiB 22FN1_09.LAX 100 kiB 22FN1_09.txt 15 kiB
AHN5
22FN1_10 AHN1 22FN1_10.LAZ 9.6 MiB 22FN1_10.LAX 8 kiB 22FN1_10.txt 10 kiB De Vierslagen, Stieltjeskanaal, Zandpol AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_10.LAZ 76.2 MiB 22FN1_10.LAX 99 kiB 22FN1_10.txt 19 kiB
AHN3 22FN1_10.LAZ 107.4 MiB 22FN1_10.LAX 85 kiB 22FN1_10.txt 17 kiB
AHN4 22FN1_10.LAZ 318.8 MiB 22FN1_10.LAX 100 kiB 22FN1_10.txt 18 kiB
AHN5
22FN1_11 AHN1 22FN1_11.LAZ 9.4 MiB 22FN1_11.LAX 7 kiB 22FN1_11.txt 10 kiB Stieltjeskanaal AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_11.LAZ 61.5 MiB 22FN1_11.LAX 96 kiB 22FN1_11.txt 16 kiB
AHN3 22FN1_11.LAZ 87.0 MiB 22FN1_11.LAX 81 kiB 22FN1_11.txt 14 kiB
AHN4 22FN1_11.LAZ 188.0 MiB 22FN1_11.LAX 100 kiB 22FN1_11.txt 15 kiB
AHN5
22FN1_12 AHN1 22FN1_12.LAZ 9.2 MiB 22FN1_12.LAX 7 kiB 22FN1_12.txt 10 kiB Stieltjeskanaal, De Kuiperij AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_12.LAZ 63.5 MiB 22FN1_12.LAX 98 kiB 22FN1_12.txt 18 kiB
AHN3 22FN1_12.LAZ 90.3 MiB 22FN1_12.LAX 82 kiB 22FN1_12.txt 15 kiB
AHN4 22FN1_12.LAZ 280.2 MiB 22FN1_12.LAX 100 kiB 22FN1_12.txt 17 kiB
AHN5
22FN1_13 AHN1 22FN1_13.LAZ 9.2 MiB 22FN1_13.LAX 7 kiB 22FN1_13.txt 10 kiB Stieltjeskanaal AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_13.LAZ 59.5 MiB 22FN1_13.LAX 98 kiB 22FN1_13.txt 15 kiB
AHN3 22FN1_13.LAZ 84.5 MiB 22FN1_13.LAX 73 kiB 22FN1_13.txt 13 kiB
AHN4 22FN1_13.LAZ 260.6 MiB 22FN1_13.LAX 100 kiB 22FN1_13.txt 14 kiB
AHN5
22FN1_14 AHN1 22FN1_14.LAZ 9.3 MiB 22FN1_14.LAX 7 kiB 22FN1_14.txt 9 kiB Stieltjeskanaal AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_14.LAZ 62.8 MiB 22FN1_14.LAX 97 kiB 22FN1_14.txt 15 kiB
AHN3 22FN1_14.LAZ 90.7 MiB 22FN1_14.LAX 74 kiB 22FN1_14.txt 13 kiB
AHN4 22FN1_14.LAZ 267.0 MiB 22FN1_14.LAX 99 kiB 22FN1_14.txt 14 kiB
AHN5
22FN1_15 AHN1 22FN1_15.LAZ 9.4 MiB 22FN1_15.LAX 7 kiB 22FN1_15.txt 12 kiB Westerse Bos AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_15.LAZ 57.7 MiB 22FN1_15.LAX 97 kiB 22FN1_15.txt 18 kiB
AHN3 22FN1_15.LAZ 87.6 MiB 22FN1_15.LAX 78 kiB 22FN1_15.txt 15 kiB
AHN4 22FN1_15.LAZ 262.4 MiB 22FN1_15.LAX 100 kiB 22FN1_15.txt 16 kiB
AHN5
22FN1_16 AHN1 22FN1_16.LAZ 8.9 MiB 22FN1_16.LAX 6 kiB 22FN1_16.txt 10 kiB Weijerswold, Stieltjeskanaal AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_16.LAZ 55.7 MiB 22FN1_16.LAX 98 kiB 22FN1_16.txt 16 kiB
AHN3 22FN1_16.LAZ 87.5 MiB 22FN1_16.LAX 81 kiB 22FN1_16.txt 13 kiB
AHN4 22FN1_16.LAZ 190.5 MiB 22FN1_16.LAX 100 kiB 22FN1_16.txt 14 kiB
AHN5
22FN1_17 AHN1 22FN1_17.LAZ 8.8 MiB 22FN1_17.LAX 6 kiB 22FN1_17.txt 9 kiB Stieltjeskanaal, Weijerswold AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_17.LAZ 53.2 MiB 22FN1_17.LAX 97 kiB 22FN1_17.txt 13 kiB
AHN3 22FN1_17.LAZ 80.1 MiB 22FN1_17.LAX 74 kiB 22FN1_17.txt 12 kiB
AHN4 22FN1_17.LAZ 250.5 MiB 22FN1_17.LAX 100 kiB 22FN1_17.txt 14 kiB
AHN5
22FN1_18 AHN1 22FN1_18.LAZ 9.2 MiB 22FN1_18.LAX 7 kiB 22FN1_18.txt 10 kiB Vlieghuis, Stieltjeskanaal AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_18.LAZ 87.8 MiB 22FN1_18.LAX 98 kiB 22FN1_18.txt 14 kiB
AHN3 22FN1_18.LAZ 118.9 MiB 22FN1_18.LAX 80 kiB 22FN1_18.txt 13 kiB
AHN4 22FN1_18.LAZ 333.7 MiB 22FN1_18.LAX 100 kiB 22FN1_18.txt 14 kiB
AHN5
22FN1_19 AHN1 22FN1_19.LAZ 8.9 MiB 22FN1_19.LAX 7 kiB 22FN1_19.txt 10 kiB Padhuis, Vlieghuis AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_19.LAZ 61.6 MiB 22FN1_19.LAX 98 kiB 22FN1_19.txt 15 kiB
AHN3 22FN1_19.LAZ 89.0 MiB 22FN1_19.LAX 78 kiB 22FN1_19.txt 14 kiB
AHN4 22FN1_19.LAZ 265.6 MiB 22FN1_19.LAX 100 kiB 22FN1_19.txt 15 kiB
AHN5
22FN1_20 AHN1 22FN1_20.LAZ 8.9 MiB 22FN1_20.LAX 7 kiB 22FN1_20.txt 11 kiB Padhuis, Westerse Bos AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_20.LAZ 67.4 MiB 22FN1_20.LAX 99 kiB 22FN1_20.txt 17 kiB
AHN3 22FN1_20.LAZ 96.9 MiB 22FN1_20.LAX 81 kiB 22FN1_20.txt 14 kiB
AHN4 22FN1_20.LAZ 288.7 MiB 22FN1_20.LAX 100 kiB 22FN1_20.txt 15 kiB
AHN5
22FN1_21 AHN1 22FN1_21.LAZ 5.9 MiB 22FN1_21.LAX 5 kiB 22FN1_21.txt 9 kiB Weijerswold AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_21.LAZ 41.5 MiB 22FN1_21.LAX 76 kiB 22FN1_21.txt 14 kiB
AHN3 22FN1_21.LAZ 73.8 MiB 22FN1_21.LAX 60 kiB 22FN1_21.txt 13 kiB
AHN4 22FN1_21.LAZ 126.9 MiB 22FN1_21.LAX 68 kiB 22FN1_21.txt 41 kiB
AHN5
22FN1_22 AHN1 22FN1_22.LAZ 7.9 MiB 22FN1_22.LAX 6 kiB 22FN1_22.txt 10 kiB Weijerswold, Vlieghuis AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_22.LAZ 54.1 MiB 22FN1_22.LAX 93 kiB 22FN1_22.txt 16 kiB
AHN3 22FN1_22.LAZ 98.5 MiB 22FN1_22.LAX 79 kiB 22FN1_22.txt 13 kiB
AHN4 22FN1_22.LAZ 136.0 MiB 22FN1_22.LAX 88 kiB 22FN1_22.txt 27 kiB
AHN5
22FN1_23 AHN1 22FN1_23.LAZ 7.4 MiB 22FN1_23.LAX 6 kiB 22FN1_23.txt 9 kiB Vlieghuis AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_23.LAZ 44.5 MiB 22FN1_23.LAX 86 kiB 22FN1_23.txt 12 kiB
AHN3 22FN1_23.LAZ 82.7 MiB 22FN1_23.LAX 73 kiB 22FN1_23.txt 13 kiB
AHN4 22FN1_23.LAZ 117.5 MiB 22FN1_23.LAX 81 kiB 22FN1_23.txt 20 kiB
AHN5
22FN1_24 AHN1 22FN1_24.LAZ 6.8 MiB 22FN1_24.LAX 6 kiB 22FN1_24.txt 11 kiB Vlieghuis, Padhuis AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_24.LAZ 43.4 MiB 22FN1_24.LAX 78 kiB 22FN1_24.txt 12 kiB
AHN3 22FN1_24.LAZ 78.4 MiB 22FN1_24.LAX 64 kiB 22FN1_24.txt 13 kiB
AHN4 22FN1_24.LAZ 107.4 MiB 22FN1_24.LAX 70 kiB 22FN1_24.txt 14 kiB
AHN5
22FN1_25 AHN1 22FN1_25.LAZ 7.4 MiB 22FN1_25.LAX 6 kiB 22FN1_25.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 22FN1_25.LAZ 43.1 MiB 22FN1_25.LAX 86 kiB 22FN1_25.txt 12 kiB
AHN3 22FN1_25.LAZ 83.6 MiB 22FN1_25.LAX 68 kiB 22FN1_25.txt 12 kiB
AHN4 22FN1_25.LAZ 119.9 MiB 22FN1_25.LAX 79 kiB 22FN1_25.txt 13 kiB
AHN5

No guarantee on availability, completeness, correctness or fitness for any particular purpose is implied by the distribution of or linking to this data. The license indicated with the products is to the best of my knowledge at the time of writing. Please confirm the applicable license with the source before integrating the data.