Actueel Hoogtebestand Nederland (AHN), Hollanda'nın tamamı için ayrıntılı ve hassas yükseklik verileri içeren bir veri kümesidir. Yükseklik bilgileri, 5 cm dikey doğrulukla lazer teknolojisi kullanılarak helikopterlerden ve uçaklardan toplandı.
AHN4 veri kümesi, Hollanda AHN 0,5 m DSM ve DTM değişkenlerini içerir.
Veriler 2020 ile 2022 arasındaki dönemi kapsar.
Dijital Arazi Modeli (DTM) ürünü, zeminin yüksekliğini temsil ederken Dijital Yüzey Modeli (DSM) ürünü, o noktadaki en yüksek yüzeylerin yüksekliğini temsil eder.
Bantlar
Piksel Boyutu 0,5 metre
Bantlar
Ad
Birimler
Piksel Boyutu
Açıklama
dtm
dk.
metre
Zeminin yüksekliği
dsm
dk.
metre
O noktadaki en yüksek yüzeylerin yüksekliği
Kullanım Şartları
Kullanım Şartları
AHN'nin veri kümeleri Açık Veri olarak kullanılabilir.
Bu, verilerin herkes tarafından ücretsiz ve kısıtlama olmadan kullanılabileceği anlamına gelir. Daha fazla bilgi için Açık Veriler sayfasını ziyaret edin. İndirilen dosyalar, CC-0 lisansı şartlarına tabidir.
Actueel Hoogtebestand Nederland (AHN), Hollanda'nın tamamı için ayrıntılı ve hassas yükseklik verileri içeren bir veri kümesidir. Yükseklik bilgileri, 5 cm dikey doğrulukla lazer teknolojisi kullanan helikopterler ve uçaklardan toplanmıştır. AHN4 veri kümesi, Hollanda AHN 0,5 m DSM ve DTM değişkenlerini içerir. Veriler …
[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)"]]
