LiDAR 모델에서 파생된 오스트레일리아의 디지털 고도 모델 (DEM) 5미터 그리드는 2001년에서 2015년 사이에 245,000제곱킬로미터가 넘는 지역을 대상으로 실시된 약 236개의 개별 LiDAR 조사에서 파생된 전국 5미터 (노출된 지표면) DEM을 나타냅니다. 이러한 조사는 오스트레일리아의 인구 밀도가 높은 해안 지대, 머레이 달링 분지 내 범람원 조사, 주요 및 소규모 인구 중심지의 개별 조사를 포함합니다.
사용 가능한 모든 1미터 해상도 LiDAR 기반 DEM은 각 조사 지역에 대해 이웃 평균 방법을 사용하여 5미터 해상도 데이터 세트로 컴파일되고 리샘플링된 후 각 주에 대해 단일 데이터 세트로 병합되었습니다. 각 주의 데이터 세트는 이미지 모음 내에 별도의 이미지로 제공됩니다.
개별 LiDAR 측량 획득 및 5m 제품 파생은 Geoscience Australia, Cooperative Research Centre for Spatial Information (CRCSI), Departments of Climate Change and Environment, 주 및 준주 관할권, 지방 정부, Murray Darling Basin Authority 간의 장기 협력의 일환으로 National Elevation Data Framework 및 Coastal and Urban DEM Program의 후원 하에 이루어졌습니다. 소스 데이터 세트는 일반적으로 오스트레일리아 ICSM LiDAR 획득 사양과 일치하는 표준에 따라 캡처되었으며, 최소 0.30m (95% 신뢰도)의 기본 수직 정확도와 최소 0.80m (95% 신뢰도)의 수평 정확도가 필요합니다.
퍼스 근처에는 (115.85, -31.99), (115.72, -33.75), (115.10, -33.43) 주변에 null (NaN) 값이 있는 영역이 여러 개 있습니다.
대역
픽셀 크기 5미터
대역
이름
단위
픽셀 크기
설명
elevation
m
미터
고도
이용약관
이용약관
이 데이터 세트는 Geoscience Australia에서 크리에이티브 커먼즈 저작자 표시 4.0 국제 라이선스에 따라 제공합니다.
데이터는 제공된 인용 및 DOI로 참조해야 합니다.
인용
인용:
Geoscience Australia, 2015. LiDAR 5미터 그리드에서 파생된 오스트레일리아의 디지털 고도 모델 (DEM)입니다. Geoscience Australia, Canberra.
LiDAR 모델에서 파생된 오스트레일리아의 디지털 고도 모델 (DEM) 5미터 그리드는 2001년에서 2015년 사이에 245,000제곱킬로미터가 넘는 지역을 대상으로 실시된 약 236개의 개별 LiDAR 조사에서 파생된 국가 5미터 (지표면) DEM을 나타냅니다. 이 설문조사는 오스트레일리아의 인구 밀도가 높은 …
[null,null,[],[[["\u003cp\u003eThe dataset is a 5-meter resolution Digital Elevation Model (DEM) of Australia derived from LiDAR surveys between 2001 and 2015.\u003c/p\u003e\n"],["\u003cp\u003eIt covers over 245,000 square kilometers, primarily focusing on Australia's populated coastal zone, floodplains, and major population centers.\u003c/p\u003e\n"],["\u003cp\u003eThe DEM was created by compiling and resampling 1-meter resolution LiDAR-derived DEMs to a 5-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eData is made available by Geoscience Australia under the Creative Commons Attribution 4.0 International License and requires attribution with the provided citation and DOI.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes an elevation band representing the bare earth elevation in meters.\u003c/p\u003e\n"]]],["Geoscience Australia provides a 5-meter Digital Elevation Model (DEM) of Australia, derived from 236 LiDAR surveys conducted between 2001 and 2015. The dataset, available through Earth Engine, covers over 245,000 square kilometers, primarily Australia's populated coastal areas. It is provided as separate images for each state. Data, licensed under Creative Commons Attribution 4.0, is accessible through the Earth Engine snippet `ee.ImageCollection(\"AU/GA/AUSTRALIA_5M_DEM\")` and the dataset DOI. It also includes null value areas.\n"],null,["# Australian 5M DEM\n\nDataset Availability\n: 2015-12-01T00:00:00Z--2015-12-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [Geoscience Australia](https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/89644)\n\nTags\n:\n[australia](/earth-engine/datasets/tags/australia) [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [ga](/earth-engine/datasets/tags/ga) [geophysical](/earth-engine/datasets/tags/geophysical) [geoscience-australia](/earth-engine/datasets/tags/geoscience-australia) [lidar](/earth-engine/datasets/tags/lidar) \n\n#### Description\n\nThe Digital Elevation Model (DEM) 5 meter Grid of Australia\nderived from LiDAR model represents a National 5 meter (bare\nearth) DEM which has been derived from some 236 individual LiDAR\nsurveys between 2001 and 2015 covering an area in excess of 245,000\nsquare kilometers. These surveys cover Australia's populated\ncoastal zone; floodplain surveys within the Murray Darling Basin,\nand individual surveys of major and minor population centers.\nAll available 1 meter resolution LiDAR-derived DEMs have been\ncompiled and resampled using a neighborhood-mean method to 5\nmeter resolution datasets for each survey area, and then merged\ninto a single dataset for each State. Each state's dataset is\nprovided as a separate image within the image collection.\n\nThe acquisition of the individual LiDAR surveys and derivation\nof the 5m product has been part of a long-term collaboration\nbetween Geoscience Australia, the Cooperative Research Centre\nfor Spatial Information (CRCSI), the Departments of Climate Change\nand Environment, State and Territory jurisdictions, Local Government\nand the Murray Darling Basin Authority under the auspices of\nthe National Elevation Data Framework and Coastal and Urban DEM\nProgram. The source datasets have been captured to standards\nthat are generally consistent with the Australian ICSM LiDAR\nAcquisition Specifications with require a fundamental vertical\naccuracy of at least 0.30m (95% confidence) and horizontal accuracy\nof at least 0.80m (95% confidence).\n\nThere are several areas close to Perth with null (NaN) values around\n(115.85, -31.99), (115.72, -33.75), and (115.10, -33.43).\n\n### Bands\n\n\n**Pixel Size**\n\n5 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|-------------|-------|------------|-------------|\n| `elevation` | m | meters | Elevation |\n\n### Terms of Use\n\n**Terms of Use**\n\nThis dataset is made available by Geoscience Australia\nunder the Creative Commons Attribution 4.0 International License.\nThe data must be referenced with the provided citation and DOI.\n\n### Citations\n\nCitations:\n\n- Geoscience Australia, 2015. Digital Elevation Model (DEM) of Australia\n derived from LiDAR 5 Metre Grid. Geoscience Australia, Canberra.\n\n### DOIs\n\n- \u003chttps://doi.org/10.4225/25/5652419862E23\u003e\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('AU/GA/AUSTRALIA_5M_DEM');\nvar elevation = dataset.select('elevation');\nvar elevationVis = {\n min: 0.0,\n max: 150.0,\n palette: ['0000ff', '00ffff', 'ffff00', 'ff0000', 'ffffff'],\n};\nMap.setCenter(140.1883, -35.9113, 8);\nMap.addLayer(elevation, elevationVis, 'Elevation');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/AU/AU_GA_AUSTRALIA_5M_DEM) \n[Australian 5M DEM](/earth-engine/datasets/catalog/AU_GA_AUSTRALIA_5M_DEM) \nThe Digital Elevation Model (DEM) 5 meter Grid of Australia derived from LiDAR model represents a National 5 meter (bare earth) DEM which has been derived from some 236 individual LiDAR surveys between 2001 and 2015 covering an area in excess of 245,000 square kilometers. These surveys cover Australia's populated ... \nAU/GA/AUSTRALIA_5M_DEM, australia,dem,elevation,elevation-topography,ga,geophysical,geoscience-australia,lidar \n2015-12-01T00:00:00Z/2015-12-01T00:00:00Z \n-43.45 114.09 -9.88 153.64 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.4225/25/5652419862E23](https://doi.org/https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/89644)\n- [https://doi.org/10.4225/25/5652419862E23](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/AU_GA_AUSTRALIA_5M_DEM)"]]
