Australia: Terrain & Seafloor 36 x 48

Australia: Terrain & Seafloor was the first Ridgeline Geographic map product to be completed in the Continental Terrain & Seafloor Series, and was the initial "testing ground" for producing subsequent physical maps of the continents.

Map elements include:

• A digital elevation model of all continental terrain within the map frame. Individual publicly available tiles of terrain data were sequentially downloaded from the U.S. Geological Survey in TIFF format. Each individual tile was then stitched into a continental mosaic, then “clipped” to highly accurate coastlines. All geoprocessing was performed using ESRI’s ArcGIS Pro software.

• A digital bathymetric model of the surrounding seafloor. Raw, publicly available bathymetric TIFF imagery tiles were obtained from the General Bathymetric Chart of the Oceans (GEBCO) via the National Oceanic and Atmospheric Administration (NOAA) and combined into a mosaic that fills the map frame. All geoprocessing was performed using ESRI’s ArcGIS Pro software.

• A detailed depiction of:

  
  

o   Inland water bodies, including Australia's ubiquitous intermittent lakes and salt flats

o   Mountain summits with corresponding elevations in feet

o   Volcanic mountain summits with corresponding elevations in feet

o   Mountain ranges, plateaus, valleys, and other significant landforms

o   Glaciers, courtesy of the Global Land Ice Measurements from Space (GLIMS) program

o   Islands, points, capes, and other coastal features

o   Deserts

o   National, state, and territorial capitals and significant cities scaled by population

o   International and subnational political boundaries

o   Seafloor ridges, seamount chains, basins, fracture zones, and other significant features

o   Pinpoint locations of significant seamounts, guyots, banks, shoals, reefs, and other submerged features

Australia: Terrain & Seafloor is a detailed look at a small, sparsely populated continent with modest topography at the southeastern edge of the world. Much of the seafloor imprint of the mostly submerged "8th continent of Zealandia" is visible in the map frame in the form of oceanic shallows, including the Campbell Plateau, Chatham Rise, and Lord Howe Rise. Volcanic lines are detailed along the southern flank of Indonesia, the trench systems between New Guinea and Vanuatu, and New Zealand's North Island and adjacent Kermadec line.