GeoTiles

Map - Town index - Tile index

Relevant towns and neighbourhoods

Vogelwaarde (woonkern)Hengstdijk (woonkern)Kamperhoek (buurtschap)Sluis (buurtschap)Oude Stoof (gehucht)Ruischendegat (deelkern)Luntershoek (gehucht)Vogelfort (gehucht)Stoppeldijkveer (gehucht)Pauluspolder (gehucht)Kampen (gehucht)Schapershoek (gehucht)Keizerrijk (gehucht)

Tile 67FZ2

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 67fz2.laz 3.5 MiB 67fz2.lax 17 kiB 67fz2.txt 5 kiB Stuurgroep AHN, public domain
Non-ground 67fz2.laz 85 kiB 67fz2.lax 23 kiB 67fz2.txt 6 kiB Stuurgroep AHN, public domain
Merged 67FZ2.LAZ 3.6 MiB 67FZ2.LAX 19 kiB 67FZ2.txt 8 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN2 Ground g67fz2.laz 557.4 MiB g67fz2.lax 302 kiB g67fz2.txt 5 kiB Stuurgroep AHN, public domain
Non-ground u67fz2.laz 104.0 MiB u67fz2.lax 83 kiB u67fz2.txt 13 kiB Stuurgroep AHN, public domain
Merged 67FZ2.LAZ 661.3 MiB 67FZ2.LAX 1.2 MiB 67FZ2.txt 13 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN3 Original C_67FZ2.LAZ 1.9 GiB C_67FZ2.LAX 1.9 MiB C_67FZ2.txt 15 kiB Stuurgroep AHN, public domain
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN4 Original C_67FZ2.LAZ 3.9 GiB C_67FZ2.LAX 2.0 MiB C_67FZ2.txt 16 kiB Het Waterschapshuis, public domain
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 67fz2.tif.zip public domain
AHN2 r67fz2.tif.zip ahn2_5_67fz2.tif.zip i67fz2.tif.zip public domain *
AHN3 R5_67FZ2.zip R_67FZ2.zip M5_67FZ2.zip M_67FZ2.zip CC-0
AHN4 R5_67FZ2.zip R_67FZ2.zip M5_67FZ2.zip M_67FZ2.zip CC-0 [1, 2, 3, 4]

Aerial photograph

Year Version GeoTiff Source License
2016 RGB RGB_67FZ2.tiff 51.1 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_67FZ2.tiff 49.6 MiB CC-BY 4.0
2017 RGB RGB_67FZ2.tiff 52.5 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_67FZ2.tiff 52.0 MiB CC-BY 4.0
2018 RGB RGB_67FZ2.tiff 66.2 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_67FZ2.tiff 64.6 MiB CC-BY 4.0
2019 RGB RGB_67FZ2.tiff 55.5 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_67FZ2.tiff 50.6 MiB CC-BY 4.0
2020 RGB RGB_67FZ2.tiff 50.9 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_67FZ2.tiff 47.2 MiB CC-BY 4.0
2022 RGB RGB_67FZ2.tiff 62.6 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_67FZ2.tiff 65.3 MiB CC-BY 4.0
2023 RGB RGB_67FZ2.tiff 50.6 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_67FZ2.tiff 51.4 MiB CC-BY 4.0

Sub-tiles 67FZ2

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
67FZ2_01 AHN1 67FZ2_01.LAZ 973 kiB 67FZ2_01.LAX 4 kiB 67FZ2_01.txt 8 kiB Kamperhoek, Kampen AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_01.LAZ 59.3 MiB 67FZ2_01.LAX 49 kiB 67FZ2_01.txt 13 kiB
AHN3 67FZ2_01.LAZ 111.4 MiB 67FZ2_01.LAX 94 kiB 67FZ2_01.txt 15 kiB
AHN4 67FZ2_01.LAZ 226.4 MiB 67FZ2_01.LAX 100 kiB 67FZ2_01.txt 16 kiB
67FZ2_02 AHN1 67FZ2_02.LAZ 486 kiB 67FZ2_02.LAX 3 kiB 67FZ2_02.txt 8 kiB Oude Stoof AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_02.LAZ 62.2 MiB 67FZ2_02.LAX 50 kiB 67FZ2_02.txt 13 kiB
AHN3 67FZ2_02.LAZ 150.2 MiB 67FZ2_02.LAX 96 kiB 67FZ2_02.txt 14 kiB
AHN4 67FZ2_02.LAZ 228.7 MiB 67FZ2_02.LAX 100 kiB 67FZ2_02.txt 16 kiB
67FZ2_03 AHN1 67FZ2_03.LAZ 453 kiB 67FZ2_03.LAX 3 kiB 67FZ2_03.txt 7 kiB Hengstdijk, Oude Stoof AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_03.LAZ 58.4 MiB 67FZ2_03.LAX 53 kiB 67FZ2_03.txt 12 kiB
AHN3 67FZ2_03.LAZ 98.6 MiB 67FZ2_03.LAX 89 kiB 67FZ2_03.txt 13 kiB
AHN4 67FZ2_03.LAZ 213.1 MiB 67FZ2_03.LAX 99 kiB 67FZ2_03.txt 15 kiB
67FZ2_04 AHN1 67FZ2_04.LAZ 456 kiB 67FZ2_04.LAX 3 kiB 67FZ2_04.txt 8 kiB Hengstdijk AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_04.LAZ 65.4 MiB 67FZ2_04.LAX 56 kiB 67FZ2_04.txt 13 kiB
AHN3 67FZ2_04.LAZ 100.1 MiB 67FZ2_04.LAX 88 kiB 67FZ2_04.txt 15 kiB
AHN4 67FZ2_04.LAZ 203.0 MiB 67FZ2_04.LAX 100 kiB 67FZ2_04.txt 16 kiB
67FZ2_05 AHN1 67FZ2_05.LAZ 484 kiB 67FZ2_05.LAX 3 kiB 67FZ2_05.txt 6 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_05.LAZ 62.1 MiB 67FZ2_05.LAX 58 kiB 67FZ2_05.txt 11 kiB
AHN3 67FZ2_05.LAZ 89.9 MiB 67FZ2_05.LAX 81 kiB 67FZ2_05.txt 12 kiB
AHN4 67FZ2_05.LAZ 174.9 MiB 67FZ2_05.LAX 95 kiB 67FZ2_05.txt 14 kiB
67FZ2_06 AHN1 67FZ2_06.LAZ 775 kiB 67FZ2_06.LAX 3 kiB 67FZ2_06.txt 7 kiB Kamperhoek, Keizerrijk, Schapershoek AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_06.LAZ 73.2 MiB 67FZ2_06.LAX 60 kiB 67FZ2_06.txt 14 kiB
AHN3 67FZ2_06.LAZ 129.8 MiB 67FZ2_06.LAX 91 kiB 67FZ2_06.txt 15 kiB
AHN4 67FZ2_06.LAZ 216.0 MiB 67FZ2_06.LAX 99 kiB 67FZ2_06.txt 16 kiB
67FZ2_07 AHN1 67FZ2_07.LAZ 434 kiB 67FZ2_07.LAX 3 kiB 67FZ2_07.txt 7 kiB Vogelfort AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_07.LAZ 80.0 MiB 67FZ2_07.LAX 66 kiB 67FZ2_07.txt 14 kiB
AHN3 67FZ2_07.LAZ 131.5 MiB 67FZ2_07.LAX 95 kiB 67FZ2_07.txt 15 kiB
AHN4 67FZ2_07.LAZ 190.9 MiB 67FZ2_07.LAX 100 kiB 67FZ2_07.txt 16 kiB
67FZ2_08 AHN1 67FZ2_08.LAZ 516 kiB 67FZ2_08.LAX 3 kiB 67FZ2_08.txt 8 kiB Hengstdijk, Vogelfort AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_08.LAZ 77.7 MiB 67FZ2_08.LAX 61 kiB 67FZ2_08.txt 14 kiB
AHN3 67FZ2_08.LAZ 112.1 MiB 67FZ2_08.LAX 84 kiB 67FZ2_08.txt 15 kiB
AHN4 67FZ2_08.LAZ 229.4 MiB 67FZ2_08.LAX 96 kiB 67FZ2_08.txt 16 kiB
67FZ2_09 AHN1 67FZ2_09.LAZ 476 kiB 67FZ2_09.LAX 4 kiB 67FZ2_09.txt 8 kiB Hengstdijk, Pauluspolder AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_09.LAZ 69.5 MiB 67FZ2_09.LAX 55 kiB 67FZ2_09.txt 14 kiB
AHN3 67FZ2_09.LAZ 100.7 MiB 67FZ2_09.LAX 85 kiB 67FZ2_09.txt 16 kiB
AHN4 67FZ2_09.LAZ 202.2 MiB 67FZ2_09.LAX 93 kiB 67FZ2_09.txt 17 kiB
67FZ2_10 AHN1 67FZ2_10.LAZ 434 kiB 67FZ2_10.LAX 3 kiB 67FZ2_10.txt 7 kiB Pauluspolder AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_10.LAZ 64.2 MiB 67FZ2_10.LAX 55 kiB 67FZ2_10.txt 13 kiB
AHN3 67FZ2_10.LAZ 89.8 MiB 67FZ2_10.LAX 83 kiB 67FZ2_10.txt 14 kiB
AHN4 67FZ2_10.LAZ 186.8 MiB 67FZ2_10.LAX 93 kiB 67FZ2_10.txt 15 kiB
67FZ2_11 AHN1 67FZ2_11.LAZ 481 kiB 67FZ2_11.LAX 3 kiB 67FZ2_11.txt 7 kiB Vogelwaarde, Sluis, Ruischendegat, Schapershoek AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_11.LAZ 63.9 MiB 67FZ2_11.LAX 55 kiB 67FZ2_11.txt 13 kiB
AHN3 67FZ2_11.LAZ 171.9 MiB 67FZ2_11.LAX 99 kiB 67FZ2_11.txt 15 kiB
AHN4 67FZ2_11.LAZ 229.4 MiB 67FZ2_11.LAX 100 kiB 67FZ2_11.txt 16 kiB
67FZ2_12 AHN1 67FZ2_12.LAZ 527 kiB 67FZ2_12.LAX 4 kiB 67FZ2_12.txt 8 kiB Vogelwaarde AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_12.LAZ 68.6 MiB 67FZ2_12.LAX 58 kiB 67FZ2_12.txt 14 kiB
AHN3 67FZ2_12.LAZ 136.7 MiB 67FZ2_12.LAX 96 kiB 67FZ2_12.txt 15 kiB
AHN4 67FZ2_12.LAZ 237.7 MiB 67FZ2_12.LAX 99 kiB 67FZ2_12.txt 16 kiB
67FZ2_13 AHN1 67FZ2_13.LAZ 496 kiB 67FZ2_13.LAX 3 kiB 67FZ2_13.txt 9 kiB Vogelwaarde AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_13.LAZ 63.3 MiB 67FZ2_13.LAX 54 kiB 67FZ2_13.txt 13 kiB
AHN3 67FZ2_13.LAZ 118.2 MiB 67FZ2_13.LAX 92 kiB 67FZ2_13.txt 16 kiB
AHN4 67FZ2_13.LAZ 223.2 MiB 67FZ2_13.LAX 100 kiB 67FZ2_13.txt 16 kiB
67FZ2_14 AHN1 67FZ2_14.LAZ 433 kiB 67FZ2_14.LAX 4 kiB 67FZ2_14.txt 7 kiB Pauluspolder AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_14.LAZ 59.0 MiB 67FZ2_14.LAX 53 kiB 67FZ2_14.txt 14 kiB
AHN3 67FZ2_14.LAZ 95.1 MiB 67FZ2_14.LAX 90 kiB 67FZ2_14.txt 15 kiB
AHN4 67FZ2_14.LAZ 184.4 MiB 67FZ2_14.LAX 100 kiB 67FZ2_14.txt 16 kiB
67FZ2_15 AHN1 67FZ2_15.LAZ 463 kiB 67FZ2_15.LAX 3 kiB 67FZ2_15.txt 7 kiB Pauluspolder AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_15.LAZ 60.0 MiB 67FZ2_15.LAX 54 kiB 67FZ2_15.txt 12 kiB
AHN3 67FZ2_15.LAZ 105.7 MiB 67FZ2_15.LAX 91 kiB 67FZ2_15.txt 15 kiB
AHN4 67FZ2_15.LAZ 213.2 MiB 67FZ2_15.LAX 100 kiB 67FZ2_15.txt 16 kiB
67FZ2_16 AHN1 67FZ2_16.LAZ 447 kiB 67FZ2_16.LAX 3 kiB 67FZ2_16.txt 8 kiB Stoppeldijkveer, Vogelwaarde, Sluis AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_16.LAZ 57.7 MiB 67FZ2_16.LAX 50 kiB 67FZ2_16.txt 12 kiB
AHN3 67FZ2_16.LAZ 132.3 MiB 67FZ2_16.LAX 95 kiB 67FZ2_16.txt 13 kiB
AHN4 67FZ2_16.LAZ 193.0 MiB 67FZ2_16.LAX 99 kiB 67FZ2_16.txt 15 kiB
67FZ2_17 AHN1 67FZ2_17.LAZ 460 kiB 67FZ2_17.LAX 3 kiB 67FZ2_17.txt 7 kiB Vogelwaarde AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_17.LAZ 61.1 MiB 67FZ2_17.LAX 52 kiB 67FZ2_17.txt 14 kiB
AHN3 67FZ2_17.LAZ 110.6 MiB 67FZ2_17.LAX 90 kiB 67FZ2_17.txt 15 kiB
AHN4 67FZ2_17.LAZ 198.9 MiB 67FZ2_17.LAX 100 kiB 67FZ2_17.txt 17 kiB
67FZ2_18 AHN1 67FZ2_18.LAZ 480 kiB 67FZ2_18.LAX 3 kiB 67FZ2_18.txt 8 kiB Vogelwaarde AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_18.LAZ 67.6 MiB 67FZ2_18.LAX 55 kiB 67FZ2_18.txt 14 kiB
AHN3 67FZ2_18.LAZ 123.1 MiB 67FZ2_18.LAX 93 kiB 67FZ2_18.txt 16 kiB
AHN4 67FZ2_18.LAZ 256.6 MiB 67FZ2_18.LAX 100 kiB 67FZ2_18.txt 17 kiB
67FZ2_19 AHN1 67FZ2_19.LAZ 461 kiB 67FZ2_19.LAX 4 kiB 67FZ2_19.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_19.LAZ 60.3 MiB 67FZ2_19.LAX 52 kiB 67FZ2_19.txt 14 kiB
AHN3 67FZ2_19.LAZ 111.7 MiB 67FZ2_19.LAX 95 kiB 67FZ2_19.txt 15 kiB
AHN4 67FZ2_19.LAZ 193.0 MiB 67FZ2_19.LAX 100 kiB 67FZ2_19.txt 16 kiB
67FZ2_20 AHN1 67FZ2_20.LAZ 421 kiB 67FZ2_20.LAX 3 kiB 67FZ2_20.txt 7 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_20.LAZ 57.3 MiB 67FZ2_20.LAX 51 kiB 67FZ2_20.txt 12 kiB
AHN3 67FZ2_20.LAZ 108.3 MiB 67FZ2_20.LAX 93 kiB 67FZ2_20.txt 13 kiB
AHN4 67FZ2_20.LAZ 192.9 MiB 67FZ2_20.LAX 100 kiB 67FZ2_20.txt 15 kiB
67FZ2_21 AHN1 67FZ2_21.LAZ 416 kiB 67FZ2_21.LAX 3 kiB 67FZ2_21.txt 7 kiB Stoppeldijkveer AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_21.LAZ 68.4 MiB 67FZ2_21.LAX 60 kiB 67FZ2_21.txt 13 kiB
AHN3 67FZ2_21.LAZ 92.3 MiB 67FZ2_21.LAX 83 kiB 67FZ2_21.txt 14 kiB
AHN4 67FZ2_21.LAZ 177.3 MiB 67FZ2_21.LAX 100 kiB 67FZ2_21.txt 13 kiB
67FZ2_22 AHN1 67FZ2_22.LAZ 403 kiB 67FZ2_22.LAX 3 kiB 67FZ2_22.txt 7 kiB Luntershoek AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_22.LAZ 54.0 MiB 67FZ2_22.LAX 50 kiB 67FZ2_22.txt 13 kiB
AHN3 67FZ2_22.LAZ 87.8 MiB 67FZ2_22.LAX 82 kiB 67FZ2_22.txt 14 kiB
AHN4 67FZ2_22.LAZ 192.1 MiB 67FZ2_22.LAX 98 kiB 67FZ2_22.txt 15 kiB
67FZ2_23 AHN1 67FZ2_23.LAZ 423 kiB 67FZ2_23.LAX 3 kiB 67FZ2_23.txt 8 kiB Luntershoek AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_23.LAZ 54.8 MiB 67FZ2_23.LAX 49 kiB 67FZ2_23.txt 14 kiB
AHN3 67FZ2_23.LAZ 87.0 MiB 67FZ2_23.LAX 76 kiB 67FZ2_23.txt 15 kiB
AHN4 67FZ2_23.LAZ 187.8 MiB 67FZ2_23.LAX 97 kiB 67FZ2_23.txt 15 kiB
67FZ2_24 AHN1 67FZ2_24.LAZ 445 kiB 67FZ2_24.LAX 3 kiB 67FZ2_24.txt 7 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_24.LAZ 59.1 MiB 67FZ2_24.LAX 52 kiB 67FZ2_24.txt 13 kiB
AHN3 67FZ2_24.LAZ 88.8 MiB 67FZ2_24.LAX 80 kiB 67FZ2_24.txt 15 kiB
AHN4 67FZ2_24.LAZ 195.8 MiB 67FZ2_24.LAX 99 kiB 67FZ2_24.txt 16 kiB
67FZ2_25 AHN1 67FZ2_25.LAZ 437 kiB 67FZ2_25.LAX 3 kiB 67FZ2_25.txt 7 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 67FZ2_25.LAZ 57.1 MiB 67FZ2_25.LAX 51 kiB 67FZ2_25.txt 12 kiB
AHN3 67FZ2_25.LAZ 85.0 MiB 67FZ2_25.LAX 83 kiB 67FZ2_25.txt 13 kiB
AHN4 67FZ2_25.LAZ 188.7 MiB 67FZ2_25.LAX 99 kiB 67FZ2_25.txt 15 kiB

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.