netcdf Deakin_University/bathymetry/Victorian-coast_Bathy_500m.nc { dimensions: LATITUDE = 876; LONGITUDE = 1900; variables: double LATITUDE(LATITUDE=876); :_FillValue = 9.969209968386869E36; // double :long_name = "latitude"; :standard_name = "latitude"; :units = "degrees_north"; :valid_min = -90.0; // double :valid_max = 90.0; // double :reference_datum = "WGS84 coordinate reference system (EPSG:4326)"; :_ChunkSizes = 876U; // uint double LONGITUDE(LONGITUDE=1900); :_FillValue = 9.969209968386869E36; // double :long_name = "longitude"; :standard_name = "longitude"; :units = "degrees_east"; :valid_min = -180.0; // double :valid_max = 180.0; // double :reference_datum = "WGS84 coordinate reference system (EPSG:4326)"; :_ChunkSizes = 1900U; // uint int CRS; :_FillValue = -2147483647; // int :long_name = "WGS84 lat/lon coordinate reference system"; :grid_mapping_name = "latitude_longitude"; :epsg_code = "EPSG:4326"; :longitude_of_prime_meridian = 0.0; // double :semi_major_axis = 6378137.0; // double :inverse_flattening = 298.257223563; // double float HEIGHT(LATITUDE=876, LONGITUDE=1900); :_FillValue = 99999.0f; // float :long_name = "height"; :standard_name = "height"; :units = "m"; :positive = "up"; :grid_mapping = "CRS"; :coordinates = "LATITUDE LONGITUDE"; :valid_min = -12000.0f; // float :valid_max = 9000.0f; // float :reference_datum = "AHD71 vertical datum (EPSG:5711)"; :_ChunkSizes = 876U, 1900U; // uint // global attributes: :project = "Cooperative Research Centre for Spatial Information (CRCSI)"; :Conventions = "CF-1.6,IMOS-1.4"; :standard_name_vocabulary = "NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table Version 29"; :title = "Victorian Coastal Digital Elevation Model (VCDEM 2017) 500m resolution."; :institution = "Cooperative Research Centre for Spatial Information (CRCSI)"; :institution_references = "http://www.crcsi.com.au/"; :date_created = "2018-03-08T01:17:58Z"; :abstract = "A gap free Digital Elevation Model (DEM) for the Victorian Coastal region created from the Updated High Resolution 2.5m VCDEM as well as parts of the Shuttle Radar Topography Mission (SRTM) 1 Second DEM, the Australian Bathymetry and Topography grid and a 10m DEM of Port Phillip Bay (PPB) that were provided for this project. This product uses a combination of low resolution data and interpolation techniques to provide a DEM that appears representative of the bathymetry in the Victorian Coastal Region."; :lineage = "This 500m DEM has been derived from the Continuous Seamless 10m DEM which is derived from the Updated High Resolution 2.5m VCDEM as well as parts of the SRTM 1 second DEM data and the Australian Bathymetry and Topography grid with all gaps interpolated smoothly to create a comprehensive gap free DEM for the Victorian Coastal Region.\nPositional Accuracy: The final product is derived from various data sources - from DELWP, Port of Melbourne, Deakin University, CRCSI, Royal Australian Navy, and Geoscience Australia.\nThe 2010 VCDEM product consisted of a 1m Topography DEM and 2.5m Bathymetry product that covered 90% of the Updated High Resolution DEM. The 1m Topography DEM is stated to have a horizontal accuracy of � 35cm and a vertical accuracy of � 10cm @ 68% confidence interval. The 2.5m Bathymetry DEM accuracy meets the International Hydrographic Organization (IHO) Order 1 specifications of � 50cm vertical and � 3.17m horizontal accuracy @ 2�.\nThe multibeam data obtained from Deakin University was acquired using a Kongsberg EM 2040 MBES with a capability of achieving IHO Order of Special for hydrographic standard. The final accuracy of the data acquired exceeded that required for Order 1b of the IHO S-44 standard for hydrographic surveys.\nMBES and LiDAR data obtained from Port of Melbourne was acquired using systems designed to meet IHO Order 1 for horizontal and vertical accuracy.\nReprojection, aggregation, resampling and slight re-alignment of datasets will have had a negative impact on the final accuracy.\nOriginal Datums were as follows:\nVertical Datum: AHD71 (EPSG:5711)\nHorizontal Datum GDA94 - Projection: VicGrid 94 (EPSG:3111).\n"; :naming_authority = "IMOS"; :geospatial_lat_min = -40.91246572212698; // double :geospatial_lat_max = -36.97603778119328; // double :geospatial_lat_units = "degrees_north"; :geospatial_lon_min = 139.447085294478; // double :geospatial_lon_max = 150.39972073758062; // double :geospatial_lon_units = "degrees_east"; :geospatial_vertical_min = -117.9188461303711; // double :geospatial_vertical_max = 685.2449951171875; // double :geospatial_vertical_positive = "up"; :geospatial_vertical_units = "metres"; :data_centre = "Australian Ocean Data Network (AODN)"; :data_centre_email = "info@aodn.org.au"; :author = "Quadros, Nathan"; :author_email = "nquadros@crcsi.com.au"; :point_of_contact = "Ierodiaconou, Daniel"; :point_of_contact_email = "iero@deakin.edu.au"; :citation = "The citation in a list of references is: \"Cooperative Research Centre for Spatial Information (CRCSI), [year-of-data-download], Victorian Coastal Digital Elevation Model (VCDEM 2017), [data-access-url], accessed [date-of-access].\""; :acknowledgement = "Any users of CRCSI data are required to clearly acknowledge the source of the material in the format: \"Data was sourced from the Cooperative Research Centre for Spatial Information (CRCSI). The following organisations were involved in the collection of the data: Department of Environment, Land, Water and Planning (DELWP), Victorian Government; Port of Melbourne; Deakin University; Royal Australian Navy (RAN); and Commonwealth of Australia (Geoscience Australia).\""; :disclaimer = "This data is not suitable for navigational purposes."; :credit = "Department of Environment, Land, Water and Planning (DELWP), Victorian Government; Port of Melbourne; Deakin University; Royal Australian Navy (RAN); Commonwealth of Australia (Geoscience Australia)"; :license = "https://creativecommons.org/licenses/by-nc/4.0/"; :cdm_data_type = "Grid"; }