{
  "year": 2023,
  "license": "CC BY 4.0",
  "survey": {
    "date": "24-26 Jul 2023",
    "location": "Belvedere Glacier - Macugnaga (VB)",
    "drone": {
      "name": "DJI Matrice 300 RTK",
      "producer": "DJI"
    },
    "camera": {
      "name": "DJI Zenmuse P1",
      "sensor_type": "FullFrame CMOS",
      "sensor_size": "35,9x24",
      "Mp": 45,
      "pixel_size_micron": 4.4,
      "image_size_px": {
        "width": 8192,
        "heigth": 5460
      },
      "lens": "DJI DL 35mm F2.8 LS ASPH",
      "focal_length_mm": 35,
      "notes": ""
    },
    "flight": {
      "average_height_m": 200,
      "average_GSD_m": 0.027,
      "image_scale": 6000
    },
    "photogrammetric_block": {
      "number_of_images": 1473,
      "number_of_control_points": 23,
      "number_checkpoints": 9,
      "on_ground_accuracy": {
        "rmse_m": {
          "x": 0.035,
          "y": 0.03,
          "z": 0.05,
          "global": 0.068
        }
      }
    }
  },
  "data": {
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      "file_name": [
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        "belv_2023_uav_pcd-1.las",
        "belv_2023_uav_pcd-2.las",
        "belv_2023_uav_pcd-3.las"
      ],
      "reference_system": "RDN2008 / UTM zone 32N",
      "epsg": "7791",
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      "heigth_reference": "ellipsoidal",
      "vertical_datum": "",
      "file format": ".laz",
      "data type": "pointcloud",
      "points": 151748782,
      "average_point_density_pt/m2": 18.6,
      "average_point_spacing_m": 0.13,
      "bounding_box": {
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        "max": [416933.12, 5091461.05, 2345.46]
      },
      "RGB_colors": "yes",
      "scalar_fields": {
        "confidence": "Dense point cloud confidence level from Agisoft Metashape"
      }
    },
    "orthophoto": {
      "file_name": "belv_2023_uav_orthopohoto_20cm.tif",
      "reference_system": "RDN2008 / UTM zone 32N",
      "epsg": "7791",
      "proj4": "+proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs",
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      "dtype": "uint8",
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      "origin": [414777.6, 5091402.0],
      "bands": 4,
      "band_description": {
        "1": "Red",
        "2": "Green",
        "3": "Blue",
        "4": "Alpha"
      }
    },
    "dsm": {
      "file_name": "belv_2023_uav_dsm_20cm_ortho.tif",
      "reference System": "RDN2008 / UTM zone 32N",
      "epsg": "7791",
      "proj4": "+proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs",
      "heigth_reference": "orthometric",
      "vertical_datum": "ITALGEO05",
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  },
  "contributors": [
    {
      "name": "Francesco Ioli",
      "affiliation": "Department of Civil and Environmental Engineering, Politecnico di Milano (Italy)",
      "orcid": "0000-0001-7429-891X",
      "email": "francesco.ioli@polimi.it"
    },
    {
      "name": "Carlo De Gaetani",
      "affiliation": "Department of Civil and Environmental Engineering, Politecnico di Milano (Italy)",
      "orcid": "0000-0002-9214-2588"
    },
    {
      "name": "Federico Barbieri",
      "affiliation": "Department of Civil and Environmental Engineering, Politecnico di Milano (Italy)",
      "orcid": ""
    },
    {
      "name": "Federica Gaspari",
      "affiliation": "Department of Civil and Environmental Engineering, Politecnico di Milano (Italy)",
      "orcid": "0000-0001-8502-7381"
    },
    {
      "name": "Livio Pinto",
      "affiliation": "Department of Civil and Environmental Engineering, Politecnico di Milano (Italy)",
      "orcid": "0000-0002-9559-4387"
    },
    {
      "name": "Lorenzo Rossi",
      "affiliation": "Department of Civil and Environmental Engineering, Politecnico di Milano (Italy)",
      "orcid": "0000-0001-6050-1972"
    }
  ],
  "notes": "",
  "related_pubblications": [],
  "acknowledgments": ""
}