Produce a locality map

Introduction

This service enables anyone (Eco Companion members and guests) to generate a small locality image. You can then save the image (use right-hand mouse button) to your local computer and use it to illustrate your documents.

Locality images are important metadata to succinctly portray the geographic region to which a document is relevant.

Only one input method is possible at the moment: point location using latitude and longitude.

Latitude and Longitude

A worldwide, rectangular co-ordinate system in geographical representation.

• Latitude:
  • north and south coordinates
  • circles of latitude run parallel to the equator
  • latitude is the y-axis
  • expressed as decimal degrees
  • equator is 0 degrees, north pole is +90 degrees, south pole is -90 degrees
  • north coordinate, positive latitude, northern hemisphere, north of the equator
  • e.g. latitude of Seattle USA = 47.62
  • south coordinate, negative latitude, southern hemisphere, south of the equator
  • e.g. latitude of Goulburn Australia = -34.75
• Longitude:
  • east and west coordinates
  • meridians of longitude run from pole to pole
  • longitude is the x-axis
  • expressed as decimal degrees
  • prime meridian (0 degrees) runs through Greenwich Observatory in London
  • the International Date Line (approx 180, -180 degrees) is on the opposite side of the world in the Pacific Ocean
  • east coordinate, positive longitude, eastern hemisphere, east of Greenwich
  • e.g. longitude of Goulburn Australia = 149.72
  • west coordinate, negative longitude, western hemisphere, west of Greenwich
  • e.g. longitude of Seattle USA = -122.32

Define latitude and longitude of a location

Links are provided to various online facilities (at other sites) to help define the latitude and longitude of a location.

Once you have defined the latitude and longitude, then you can enter the values in this "produce a locality map" facility.

Proposed facilities

• different image sizes and scales
• other input methods:
  • minimum bounding rectangle (MBR) - north, south, east, west coordinates
  • radius about a point
  • polygon

URL:http://www.indexgeo.com.au/ec/help/locate.html
Last Modified: 27 June 1998