At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

This dataset forms part of the Perth Metropolitan area and Regional Centres digital topographic data coverage. It has been collected via the State Land Information Capture Program (SLICP) using digital photogrammetric methods. All map tiles contain: relief, drainage and culture themes and vegetation cover where it interrupts detail. The status of coverage is available either directly or via remote access to DLI's website

This dataset forms part of the Perth Metropolitan area and Regional Centres digital topographic data coverage. It has been collected via the State Land Information Capture Program (SLICP) using digital photogrammetric methods. All map tiles contain: relief, drainage and culture themes and vegetation cover where it interrupts detail. The status of coverage is available either directly or via remote access to DLI's website

This dataset forms part of the Perth Metropolitan area and Regional Centres digital topographic data coverage. It has been collected via the State Land Information Capture Program (SLICP) using digital photogrammetric methods. All map tiles contain: relief, drainage and culture themes and vegetation cover where it interrupts detail. The status of coverage is available either directly or via remote access to DLI's website

This dataset forms part of the Perth Metropolitan area and Regional Centres digital topographic data coverage. It has been collected via the State Land Information Capture Program (SLICP) using digital photogrammetric methods. All map tiles contain: relief, drainage and culture themes and vegetation cover where it interrupts detail. The status of coverage is available either directly or via remote access to DLI's website

This dataset forms part of the Perth Metropolitan area and Regional Centres digital topographic data coverage. It has been collected via the State Land Information Capture Program (SLICP) using digital photogrammetric methods. All map tiles contain: relief, drainage and culture themes and vegetation cover where it interrupts detail. The status of coverage is available either directly or via remote access to DLI's website

http://sos.noaa.gov/datasets/Land/etopo2.html ETOPO2 Global 2-Minute Gridded Elevation Data Data: Land Elevations and Ocean Bathymetry Raw 2-minute grids in: 1. big-endian (ETOPO2.raw.bin) & 2. little-endian (ETOPO2.dos.bin) formats (16-bit signed integers, 10800 columns x 5400 rows) For full information about ETOPO2, including searching, extraction, display capabilities, please see http://www.ngdc.noaa.gov/mgg/fliers/01mgg04.html The full GEODAS custom grid functionality is now online: You can now produce and download custom grids from ETOPO2 on-line for free: http://www.ngdc.noaa.gov/mgg/gdas/gd_designagrid.html warning: you do not need to download the full database, just run designagrid on-line. Frequently Asked Questions: * What are the datums (horizontal and vertical references) for ETOPO2? The horizontal datum is WGS-84, the vertical datum is Mean Sea Level. * How does one cite ETOPO2? U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Geophysical Data Center, 2001. 2-minute Gridded Global Relief Data (ETOPO2) http://www.ngdc.noaa.gov/mgg/fliers/01mgg04.html * What is the resolution of ETOPO2? The horizontal resolution is 2-minutes of latitude and longitude (1.853 km at the Equator). The vertical resolution is 1 meter. * What is the projection of ETOPO2? ETOPO2 is in the Cylindrical Equidistant Projection (sometimes called Latitude-Longitude, or Geographic) * What do the grid data actually represent? The grid values represent the elevation at the grid intersections at even multiples of 2 minutes of latitude and longitude, averaged over the cell's area. * Is the sea floor really that bumpy, and what are the long, straight lines on the ocean floor that converge on places like San Diego and Bermuda? The "orange-peel" look of the sea floor is mostly an artifact of the satellite altimetry technology and its interpretation of ocean surface waves. The straight lines are where direct shipborne measurements have been included in the data as "ground truth". These measurements help calibrate, but do not correspond 100 percent to the radar altimetry. See W.H.F. Smith and D.T. Sandwell, 1997, Global Sea Floor Topography from Satellite Altimetry and Ship Depth Soundings, Science 277 (5334), p.1956-1962. * What about shallow (<200m) water? The satellite altimetry works best in deep water and can distinguish many undersea features that are not otherwise surveyed directly. In shallow water, the gravitational effects that can be measured from the satellite are too small to be reliable. In US waters and some other areas, local high-resolution survey data have been used where available. * How do I run ETOPO2? ETOPO2 is a database, not a program. You will need imaging or analysis software to use the data. Technical contact: Dr. Peter W. Sloss (303) 497-6119 peter.w.sloss@noaa.gov revised Wed Jul 13 2005 13:05:23 GMT-0600 (Mountain Daylight Time) W3C

This map is part of the series that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5 km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. Each standard map covers an area of 1.5 degrees longitude by 1 degree latitude or about 150 kilometres from east to west and 110 kilometres from north to south. There are about 50 special maps in the series and these maps cover a non-standard area. Typically, where a map produced on standard sheet lines is largely ocean it is combined with its landward neighbour. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours (interval 50m), localities and some administrative boundaries. The topographic map and data index shows coverage of the sheets. Product Specifications Coverage: The series covers the whole of Australia with 513 maps. Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. Coordinates: Geographical and either AMG or MGA (post-1993) Datum: AGD66, GDA94, AHD. Projection: Universal Traverse Mercator (UTM) Medium: Paper, flat and folded copies.