Actueel Hoogtebestand Nederland (AHN) to zbiór danych zawierający szczegółowe i precyzyjne dane o wysokości dla całej Holandii. Dane o wysokości zostały zebrane z helikopterów i samolotów za pomocą technologii laserowej z dokładnością pionową wynoszącą 5 cm.
Zbiór danych AHN3 zawiera zmienne AHN 0,5 m DSM i DTM dla Holandii.
Dane obejmują okres od 2014 r. do 2019 r.
Cyfrowy model terenu (DTM) przedstawia wysokość gruntu, a cyfrowy model powierzchni (DSM) – wysokość najwyższych powierzchni w danym punkcie.
Pasma
Rozmiar piksela 0,5 metra
Pasma
Nazwa
Jednostki
Rozmiar piksela
Opis
dtm
m
metry
Wysokość nad poziomem morza
dsm
m
metry
Wysokość najwyższych powierzchni w danym punkcie
Warunki korzystania z usługi
Warunki korzystania z usługi
Zbiory danych AHN są dostępne jako otwarte dane.
Oznacza to, że każdy może korzystać z tych danych bezpłatnie i bez ograniczeń. Więcej informacji znajdziesz na stronie Otwarte dane. Pobrane pliki są dostępne na warunkach licencji CC-0.
Actueel Hoogtebestand Nederland (AHN) to zbiór danych zawierający szczegółowe i precyzyjne dane o wysokości dla całej Holandii. Informacje o wysokości zostały zebrane z helikopterów i samolotów za pomocą technologii laserowej z dokładnością pionową do 5 cm. Zbiór danych AHN3 zawiera zmienne AHN 0,5 m DSM i DTM dla Holandii. Dane…
[null,null,[],[[["\u003cp\u003eThe AHN3 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\u003eThis dataset, sourced from AHN, spans the period from 2014 to 2019 and 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 DTM band represents the ground's elevation, while the DSM band shows the elevation of the highest surfaces at any given point.\u003c/p\u003e\n"],["\u003cp\u003eThe AHN datasets are available as Open Data, allowing free and unrestricted use under the CC-0 license, for more details visit their open data webpage.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset can be readily accessed and analyzed within the Google Earth Engine platform, using the provided \u003ccode\u003eee.ImageCollection("AHN/AHN3")\u003c/code\u003e snippet, with free access for research, education and nonprofit users.\u003c/p\u003e\n"]]],["The Actueel Hoogtebestand Nederland (AHN) dataset provides detailed elevation data for the Netherlands, collected via laser technology from 2014 to 2019. The AHN3 dataset includes 0.5-meter Digital Surface Model (DSM) and Digital Terrain Model (DTM) variables, representing the elevation of tallest surfaces and ground level, respectively. It's freely accessible as Open Data under a CC-0 license, can be explored in Earth Engine, and contains elevation data with a 5 cm vertical accuracy.\n"],null,["# AHN3: Netherlands AHN 0.5m\n\nDataset Availability\n: 2014-01-01T00:00:00Z--2019-01-01T00:00:00Z\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\nAHN3 Dataset contains the Netherlands AHN 0.5m DSM and DTM variables.\nThe data cover the period between 2014 and 2019.\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/AHN3');\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, 'AHN3 dsm');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/AHN/AHN_AHN3) \n[AHN3: Netherlands AHN 0.5m](/earth-engine/datasets/catalog/AHN_AHN3) \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. AHN3 Dataset contains the Netherlands AHN 0.5m DSM and DTM variables. The data ... \nAHN/AHN3, ahn,dem,elevation,elevation-topography,geophysical,lidar,netherlands \n2014-01-01T00:00:00Z/2019-01-01T00:00:00Z \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_AHN3)"]]
