Actueel Hoogtebestand Nederland (AHN) adalah set data dengan data elevasi yang mendetail dan akurat untuk seluruh Belanda. Informasi elevasi dikumpulkan dari helikopter dan pesawat menggunakan teknologi laser dengan akurasi vertikal 5 cm.
Dataset AHN4 berisi variabel DSM dan DTM AHN 0,5 m Belanda.
Data mencakup periode antara tahun 2020 dan 2022.
Produk Model Medan Digital (DTM) menampilkan elevasi tanah, sedangkan produk Model Permukaan Digital (DSM) menampilkan elevasi permukaan tertinggi pada titik tersebut.
Band
Ukuran Piksel 0,5 meter
Band
Nama
Unit
Ukuran Piksel
Deskripsi
dtm
m
meter
Ketinggian permukaan tanah
dsm
m
meter
Ketinggian permukaan tertinggi pada titik tersebut
Persyaratan Penggunaan
Persyaratan Penggunaan
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Actueel Hoogtebestand Nederland (AHN) adalah set data dengan data elevasi yang mendetail dan presisi untuk seluruh Belanda. Informasi elevasi dikumpulkan dari helikopter dan pesawat menggunakan teknologi laser dengan akurasi vertikal 5 cm. Dataset AHN4 berisi variabel DSM dan DTM AHN 0,5 m Belanda. Data …
[null,null,[],[[["\u003cp\u003eThe AHN4 dataset provides detailed elevation data for the Netherlands, collected via laser technology from helicopters and aircraft, with a vertical accuracy of 5 cm.\u003c/p\u003e\n"],["\u003cp\u003eAvailable from 2020 to 2022, the AHN4 dataset includes both Digital Terrain Model (DTM) and Digital Surface Model (DSM) variables at a 0.5-meter pixel size.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is freely available as Open Data under a CC-0 license, allowing anyone to use it without restrictions, and can be accessed through Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eThe AHN4 dataset includes dtm and dsm bands which represent the elevation of the ground and the tallest surfaces at a given point respectively.\u003c/p\u003e\n"],["\u003cp\u003eYou can easily access and visualize this dataset via a Google Earth Engine snippet.\u003c/p\u003e\n"]]],["The Actueel Hoogtebestand Nederland (AHN) AHN4 dataset provides detailed elevation data for the Netherlands from 2020 to 2022, collected via laser technology from aircraft. It includes Digital Surface Model (DSM) and Digital Terrain Model (DTM) variables at a 0.5-meter pixel size, representing the elevation of the tallest surfaces and the ground, respectively. The data is open and freely available under the CC-0 license for anyone. It can be accessed through Google Earth Engine using the `ee.ImageCollection(\"AHN/AHN4\")` snippet.\n"],null,["# AHN4: Netherlands AHN 0.5m\n\nDataset Availability\n: 2020-01-01T00:00:00Z--2022-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [AHN](https://www.ahn.nl)\n\nTags\n:\n[ahn](/earth-engine/datasets/tags/ahn) [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [geophysical](/earth-engine/datasets/tags/geophysical) [lidar](/earth-engine/datasets/tags/lidar) [netherlands](/earth-engine/datasets/tags/netherlands) \n\n#### Description\n\nThe Actueel Hoogtebestand Nederland (AHN) is a dataset with detailed and\nprecise elevation data for the whole of the Netherlands. Elevation\ninformation was collected from helicopters and aircraft using laser\ntechnology with vertical accuracy of 5 cm.\n\nAHN4 Dataset contains the Netherlands AHN 0.5m DSM and DTM variables.\nThe data cover the period between 2020 and 2022.\n\nThe Digital Terrain Model (DTM) product represents the elevation of the\nground, while the Digital Surface Model (DSM) product represents the\nelevation of the tallest surfaces at that point.\n\n### Bands\n\n\n**Pixel Size**\n\n0.5 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|-------|-------|------------|-------------------------------------------------|\n| `dtm` | m | meters | Elevation of the ground |\n| `dsm` | m | meters | Elevation of the tallest surfaces at that point |\n\n### Terms of Use\n\n**Terms of Use**\n\nThe datasets of the AHN are available as Open Data.\nThis means that the data can be used by anyone for free and without\nrestrictions. For more information visit the\n[Open Data](https://www.ahn.nl/open-data/) page. Downloads are available\nunder the terms of the\n[CC-0 license](https://data.overheid.nl/licenties-voor-hergebruik).\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('AHN/AHN4');\nvar elevation = dataset.select('dsm');\nvar elevationVis = {\n min: -5.0,\n max: 30.0,\n};\nMap.setCenter(5.76583, 51.855276, 16);\nMap.addLayer(elevation, elevationVis, 'AHN4 dsm');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/AHN/AHN_AHN4) \n[AHN4: Netherlands AHN 0.5m](/earth-engine/datasets/catalog/AHN_AHN4) \nThe Actueel Hoogtebestand Nederland (AHN) is a dataset with detailed and precise elevation data for the whole of the Netherlands. Elevation information was collected from helicopters and aircraft using laser technology with vertical accuracy of 5 cm. AHN4 Dataset contains the Netherlands AHN 0.5m DSM and DTM variables. The data ... \nAHN/AHN4, ahn,dem,elevation,elevation-topography,geophysical,lidar,netherlands \n2020-01-01T00:00:00Z/2022-01-01T00:00:00Z \n50.74 3.35 53.55 7.24 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://www.ahn.nl)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/AHN_AHN4)"]]
