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Relevant towns and neighbourhoods

No overlapping towns found.

Tile 21CZ1

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 21cz1.laz.zip 8.5 MiB1 21cz1.lax 17 kiB 21cz1.txt 4 kiB Stuurgroep AHN, public domain
Non-ground 21cz1.laz.zip 200 kiB1 21cz1.lax 45 kiB 21cz1.txt 9 kiB Stuurgroep AHN, public domain
Merged 21CZ1.LAZ 8.7 MiB 21CZ1.LAX 19 kiB 21CZ1.txt 10 kiB Stuurgroep AHN (merged product by GeoTiles.nl)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles.nl
AHN2 Ground g21cz1.laz.zip 522.3 MiB1 g21cz1.lax 529 kiB g21cz1.txt 4 kiB Stuurgroep AHN, public domain
Non-ground u21cz1.laz.zip 443.8 MiB1 u21cz1.lax 305 kiB u21cz1.txt 28 kiB Stuurgroep AHN, public domain
Merged 21CZ1.LAZ 966.1 MiB 21CZ1.LAX 2.0 MiB 21CZ1.txt 28 kiB Stuurgroep AHN (merged product by GeoTiles.nl)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles.nl
AHN3 Original C_21CZ1.LAZ 1.6 GiB C_21CZ1.LAX 1.7 MiB C_21CZ1.txt 28 kiB Stuurgroep AHN, public domain
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles.nl
AHN4 Original C_21CZ1.LAZ 3.8 GiB C_21CZ1.LAX 2.0 MiB C_21CZ1.txt 30 kiB Het Waterschapshuis, public domain
Colored (Partially) available for sub-units. Remixed by GeoTiles.nl

1Size of the .laz file, contained in the archive.

2The 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.nl.

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

Raster

Version DSM DTM ('maaiveld') License
5 meter ½ meter 5 meter ½ meter
AHN1 21cz1.tif.zip public domain
AHN2 r21cz1.tif.zip ahn2_5_21cz1.tif.zip i21cz1.tif.zip public domain *
AHN3 R5_21CZ1.ZIP R_21CZ1.ZIP M5_21CZ1.ZIP M_21CZ1.ZIP CC-0
AHN4 R5_21CZ1.zip R_21CZ1.zip M5_21CZ1.zip M_21CZ1.zip CC-0 [1, 2, 3, 4]

InSAR

Orbit CSV License
Ascending, 015 21CZ1.csv.xz 1.5 MiB 21CZ1.csv Rijkswaterstaat, CC-0
Ascending, 088 21CZ1.csv.xz 1.9 MiB 21CZ1.csv Rijkswaterstaat, CC-0
Ascending, 161
Descending, 037 21CZ1.csv.xz 2.1 MiB 21CZ1.csv Rijkswaterstaat, CC-0
Descending, 110 21CZ1.csv.xz 1.9 MiB 21CZ1.csv Rijkswaterstaat, CC-0
Descending, 139

Official documentation is only available in Dutch. Malformed rows, that do not adhere to the format as specified in the documentation, were removed from the data.

Data is compressed with xz-compression. Tools like Pandas are able to read those files transparently. Users of other tools may wish to decompress the files first. Windows users may use 7-Zip, Linux users are likely to have the unxz command available on their machine already.Uncompressed, equivalent, archives are hosted by Rijkswaterstaat.

Aerial photograph

Year Version GeoTiff Source License
2016 RGB RGB_21CZ1.tiff 63.3 MiB Beeldmateriaal, nlextract.nl CC-BY 4.0
CIR CIR_21CZ1.tiff 60.1 MiB CC-BY 4.0
2017 RGB RGB_21CZ1.tiff 52.9 MiB Beeldmateriaal, nlextract.nl CC-BY 4.0
CIR CIR_21CZ1.tiff 52.1 MiB CC-BY 4.0
2018 RGB RGB_21CZ1.tiff 52.8 MiB Beeldmateriaal, nlextract.nl CC-BY 4.0
CIR CIR_21CZ1.tiff 52.1 MiB CC-BY 4.0
2019 RGB RGB_21CZ1.tiff 55.4 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_21CZ1.tiff 50.8 MiB CC-BY 4.0
2020 RGB RGB_21CZ1.tiff 41.4 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_21CZ1.tiff 38.7 MiB CC-BY 4.0

Sub-tiles 21CZ1

Image adapted from 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
21CZ1_01 AHN1 21CZ1_01.LAZ 1.0 MiB 21CZ1_01.LAX 4 kiB 21CZ1_01.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_01.LAZ 80.6 MiB 21CZ1_01.LAX 90 kiB 21CZ1_01.txt 13 kiB
AHN3 21CZ1_01.LAZ 88.9 MiB 21CZ1_01.LAX 74 kiB 21CZ1_01.txt 12 kiB
AHN4 21CZ1_01.LAZ 186.7 MiB 21CZ1_01.LAX 100 kiB 21CZ1_01.txt 13 kiB
21CZ1_02 AHN1 21CZ1_02.LAZ 913 kiB 21CZ1_02.LAX 3 kiB 21CZ1_02.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_02.LAZ 80.1 MiB 21CZ1_02.LAX 65 kiB 21CZ1_02.txt 15 kiB
AHN3 21CZ1_02.LAZ 88.6 MiB 21CZ1_02.LAX 75 kiB 21CZ1_02.txt 16 kiB
AHN4 21CZ1_02.LAZ 180.7 MiB 21CZ1_02.LAX 99 kiB 21CZ1_02.txt 17 kiB
21CZ1_03 AHN1 21CZ1_03.LAZ 944 kiB 21CZ1_03.LAX 4 kiB 21CZ1_03.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_03.LAZ 80.1 MiB 21CZ1_03.LAX 99 kiB 21CZ1_03.txt 12 kiB
AHN3 21CZ1_03.LAZ 91.8 MiB 21CZ1_03.LAX 78 kiB 21CZ1_03.txt 14 kiB
AHN4 21CZ1_03.LAZ 188.7 MiB 21CZ1_03.LAX 100 kiB 21CZ1_03.txt 15 kiB
21CZ1_04 AHN1 21CZ1_04.LAZ 952 kiB 21CZ1_04.LAX 4 kiB 21CZ1_04.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_04.LAZ 77.3 MiB 21CZ1_04.LAX 99 kiB 21CZ1_04.txt 11 kiB
AHN3 21CZ1_04.LAZ 88.0 MiB 21CZ1_04.LAX 79 kiB 21CZ1_04.txt 12 kiB
AHN4 21CZ1_04.LAZ 182.5 MiB 21CZ1_04.LAX 100 kiB 21CZ1_04.txt 14 kiB
21CZ1_05 AHN1 21CZ1_05.LAZ 1.0 MiB 21CZ1_05.LAX 4 kiB 21CZ1_05.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_05.LAZ 86.0 MiB 21CZ1_05.LAX 99 kiB 21CZ1_05.txt 14 kiB
AHN3 21CZ1_05.LAZ 97.3 MiB 21CZ1_05.LAX 85 kiB 21CZ1_05.txt 15 kiB
AHN4 21CZ1_05.LAZ 186.9 MiB 21CZ1_05.LAX 100 kiB 21CZ1_05.txt 16 kiB
21CZ1_06 AHN1 21CZ1_06.LAZ 665 kiB 21CZ1_06.LAX 3 kiB 21CZ1_06.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_06.LAZ 93.3 MiB 21CZ1_06.LAX 99 kiB 21CZ1_06.txt 13 kiB
AHN3 21CZ1_06.LAZ 113.2 MiB 21CZ1_06.LAX 79 kiB 21CZ1_06.txt 15 kiB
AHN4 21CZ1_06.LAZ 237.5 MiB 21CZ1_06.LAX 100 kiB 21CZ1_06.txt 16 kiB
21CZ1_07 AHN1 21CZ1_07.LAZ 551 kiB 21CZ1_07.LAX 3 kiB 21CZ1_07.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_07.LAZ 78.0 MiB 21CZ1_07.LAX 96 kiB 21CZ1_07.txt 13 kiB
AHN3 21CZ1_07.LAZ 90.6 MiB 21CZ1_07.LAX 75 kiB 21CZ1_07.txt 15 kiB
AHN4 21CZ1_07.LAZ 194.6 MiB 21CZ1_07.LAX 100 kiB 21CZ1_07.txt 16 kiB
21CZ1_08 AHN1 21CZ1_08.LAZ 598 kiB 21CZ1_08.LAX 3 kiB 21CZ1_08.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_08.LAZ 80.7 MiB 21CZ1_08.LAX 97 kiB 21CZ1_08.txt 25 kiB
AHN3 21CZ1_08.LAZ 94.2 MiB 21CZ1_08.LAX 81 kiB 21CZ1_08.txt 21 kiB
AHN4 21CZ1_08.LAZ 187.0 MiB 21CZ1_08.LAX 100 kiB 21CZ1_08.txt 22 kiB
21CZ1_09 AHN1 21CZ1_09.LAZ 515 kiB 21CZ1_09.LAX 3 kiB 21CZ1_09.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_09.LAZ 87.8 MiB 21CZ1_09.LAX 76 kiB 21CZ1_09.txt 25 kiB
AHN3 21CZ1_09.LAZ 93.2 MiB 21CZ1_09.LAX 84 kiB 21CZ1_09.txt 21 kiB
AHN4 21CZ1_09.LAZ 178.7 MiB 21CZ1_09.LAX 100 kiB 21CZ1_09.txt 21 kiB
21CZ1_10 AHN1 21CZ1_10.LAZ 591 kiB 21CZ1_10.LAX 3 kiB 21CZ1_10.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_10.LAZ 110.4 MiB 21CZ1_10.LAX 99 kiB 21CZ1_10.txt 13 kiB
AHN3 21CZ1_10.LAZ 94.8 MiB 21CZ1_10.LAX 84 kiB 21CZ1_10.txt 13 kiB
AHN4 21CZ1_10.LAZ 177.2 MiB 21CZ1_10.LAX 100 kiB 21CZ1_10.txt 14 kiB
21CZ1_11 AHN1 21CZ1_11.LAZ 573 kiB 21CZ1_11.LAX 3 kiB 21CZ1_11.txt 7 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_11.LAZ 81.2 MiB 21CZ1_11.LAX 99 kiB 21CZ1_11.txt 13 kiB
AHN3 21CZ1_11.LAZ 87.4 MiB 21CZ1_11.LAX 72 kiB 21CZ1_11.txt 14 kiB
AHN4 21CZ1_11.LAZ 181.6 MiB 21CZ1_11.LAX 100 kiB 21CZ1_11.txt 16 kiB
21CZ1_12 AHN1 21CZ1_12.LAZ 556 kiB 21CZ1_12.LAX 3 kiB 21CZ1_12.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_12.LAZ 78.8 MiB 21CZ1_12.LAX 98 kiB 21CZ1_12.txt 11 kiB
AHN3 21CZ1_12.LAZ 95.8 MiB 21CZ1_12.LAX 86 kiB 21CZ1_12.txt 13 kiB
AHN4 21CZ1_12.LAZ 192.0 MiB 21CZ1_12.LAX 100 kiB 21CZ1_12.txt 16 kiB
21CZ1_13 AHN1 21CZ1_13.LAZ 548 kiB 21CZ1_13.LAX 3 kiB 21CZ1_13.txt 7 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_13.LAZ 85.5 MiB 21CZ1_13.LAX 98 kiB 21CZ1_13.txt 28 kiB
AHN3 21CZ1_13.LAZ 90.3 MiB 21CZ1_13.LAX 86 kiB 21CZ1_13.txt 29 kiB
AHN4 21CZ1_13.LAZ 169.8 MiB 21CZ1_13.LAX 100 kiB 21CZ1_13.txt 28 kiB
21CZ1_14 AHN1 21CZ1_14.LAZ 549 kiB 21CZ1_14.LAX 3 kiB 21CZ1_14.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_14.LAZ 101.1 MiB 21CZ1_14.LAX 99 kiB 21CZ1_14.txt 11 kiB
AHN3 21CZ1_14.LAZ 99.3 MiB 21CZ1_14.LAX 89 kiB 21CZ1_14.txt 12 kiB
AHN4 21CZ1_14.LAZ 186.5 MiB 21CZ1_14.LAX 100 kiB 21CZ1_14.txt 13 kiB
21CZ1_15 AHN1 21CZ1_15.LAZ 567 kiB 21CZ1_15.LAX 3 kiB 21CZ1_15.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_15.LAZ 85.6 MiB 21CZ1_15.LAX 98 kiB 21CZ1_15.txt 12 kiB
AHN3 21CZ1_15.LAZ 104.5 MiB 21CZ1_15.LAX 86 kiB 21CZ1_15.txt 13 kiB
AHN4 21CZ1_15.LAZ 195.5 MiB 21CZ1_15.LAX 100 kiB 21CZ1_15.txt 15 kiB
21CZ1_16 AHN1 21CZ1_16.LAZ 695 kiB 21CZ1_16.LAX 3 kiB 21CZ1_16.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_16.LAZ 82.6 MiB 21CZ1_16.LAX 98 kiB 21CZ1_16.txt 15 kiB
AHN3 21CZ1_16.LAZ 102.4 MiB 21CZ1_16.LAX 85 kiB 21CZ1_16.txt 16 kiB
AHN4 21CZ1_16.LAZ 202.5 MiB 21CZ1_16.LAX 99 kiB 21CZ1_16.txt 17 kiB
21CZ1_17 AHN1 21CZ1_17.LAZ 627 kiB 21CZ1_17.LAX 3 kiB 21CZ1_17.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_17.LAZ 96.4 MiB 21CZ1_17.LAX 83 kiB 21CZ1_17.txt 11 kiB
AHN3 21CZ1_17.LAZ 93.2 MiB 21CZ1_17.LAX 87 kiB 21CZ1_17.txt 13 kiB
AHN4 21CZ1_17.LAZ 191.0 MiB 21CZ1_17.LAX 100 kiB 21CZ1_17.txt 14 kiB
21CZ1_18 AHN1 21CZ1_18.LAZ 715 kiB 21CZ1_18.LAX 4 kiB 21CZ1_18.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_18.LAZ 93.5 MiB 21CZ1_18.LAX 99 kiB 21CZ1_18.txt 27 kiB
AHN3 21CZ1_18.LAZ 90.4 MiB 21CZ1_18.LAX 85 kiB 21CZ1_18.txt 25 kiB
AHN4 21CZ1_18.LAZ 178.3 MiB 21CZ1_18.LAX 99 kiB 21CZ1_18.txt 31 kiB
21CZ1_19 AHN1 21CZ1_19.LAZ 774 kiB 21CZ1_19.LAX 3 kiB 21CZ1_19.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_19.LAZ 81.0 MiB 21CZ1_19.LAX 99 kiB 21CZ1_19.txt 10 kiB
AHN3 21CZ1_19.LAZ 94.8 MiB 21CZ1_19.LAX 85 kiB 21CZ1_19.txt 12 kiB
AHN4 21CZ1_19.LAZ 192.5 MiB 21CZ1_19.LAX 100 kiB 21CZ1_19.txt 13 kiB
21CZ1_20 AHN1 21CZ1_20.LAZ 767 kiB 21CZ1_20.LAX 3 kiB 21CZ1_20.txt 5 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_20.LAZ 70.4 MiB 21CZ1_20.LAX 98 kiB 21CZ1_20.txt 6 kiB
AHN3 21CZ1_20.LAZ 87.9 MiB 21CZ1_20.LAX 82 kiB 21CZ1_20.txt 8 kiB
AHN4 21CZ1_20.LAZ 179.8 MiB 21CZ1_20.LAX 100 kiB 21CZ1_20.txt 8 kiB
21CZ1_21 AHN1 21CZ1_21.LAZ 723 kiB 21CZ1_21.LAX 3 kiB 21CZ1_21.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_21.LAZ 100.0 MiB 21CZ1_21.LAX 97 kiB 21CZ1_21.txt 19 kiB
AHN3 21CZ1_21.LAZ 93.1 MiB 21CZ1_21.LAX 79 kiB 21CZ1_21.txt 19 kiB
AHN4 21CZ1_21.LAZ 216.3 MiB 21CZ1_21.LAX 100 kiB 21CZ1_21.txt 20 kiB
21CZ1_22 AHN1 21CZ1_22.LAZ 644 kiB 21CZ1_22.LAX 3 kiB 21CZ1_22.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_22.LAZ 85.2 MiB 21CZ1_22.LAX 99 kiB 21CZ1_22.txt 15 kiB
AHN3 21CZ1_22.LAZ 96.0 MiB 21CZ1_22.LAX 86 kiB 21CZ1_22.txt 16 kiB
AHN4 21CZ1_22.LAZ 241.2 MiB 21CZ1_22.LAX 100 kiB 21CZ1_22.txt 17 kiB
21CZ1_23 AHN1 21CZ1_23.LAZ 681 kiB 21CZ1_23.LAX 3 kiB 21CZ1_23.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_23.LAZ 75.8 MiB 21CZ1_23.LAX 98 kiB 21CZ1_23.txt 29 kiB
AHN3 21CZ1_23.LAZ 91.6 MiB 21CZ1_23.LAX 89 kiB 21CZ1_23.txt 29 kiB
AHN4 21CZ1_23.LAZ 230.1 MiB 21CZ1_23.LAX 100 kiB 21CZ1_23.txt 31 kiB
21CZ1_24 AHN1 21CZ1_24.LAZ 767 kiB 21CZ1_24.LAX 3 kiB 21CZ1_24.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_24.LAZ 90.9 MiB 21CZ1_24.LAX 71 kiB 21CZ1_24.txt 16 kiB
AHN3 21CZ1_24.LAZ 104.5 MiB 21CZ1_24.LAX 83 kiB 21CZ1_24.txt 16 kiB
AHN4 21CZ1_24.LAZ 250.1 MiB 21CZ1_24.LAX 100 kiB 21CZ1_24.txt 17 kiB
21CZ1_25 AHN1 21CZ1_25.LAZ 904 kiB 21CZ1_25.LAX 4 kiB 21CZ1_25.txt 10 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles.nl, CC-BY
AHN2 21CZ1_25.LAZ 93.6 MiB 21CZ1_25.LAX 98 kiB 21CZ1_25.txt 15 kiB
AHN3 21CZ1_25.LAZ 136.2 MiB 21CZ1_25.LAX 83 kiB 21CZ1_25.txt 16 kiB
AHN4 21CZ1_25.LAZ 286.7 MiB 21CZ1_25.LAX 100 kiB 21CZ1_25.txt 17 kiB

At the boundaries of its current availability, AHN4 is complemented with AHN3 to ensure full coverage.

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.