Image DataImage Data is the combination of the Remote Sensing and Photogrammetry Units of Environmental Information within the Department for Environment and Heritage, South Australia. Remote sensing dataImage Data is the South Australian distributor for the Australian Centre for Remote Sensing (ACRES). We can supply satellite imagery (Landsat, ERS, JERS) covering all of Australia and the rest of the world for Australian customers. Link to Geoscience Australia website. Imagery is available from Australian, United States, Thai and European satellite data archives or as a future acquisition programming request for your area of interest. For example of data, please consult the Sample Data page. Enhanced Satellite Image (ESI)Georectified and enhanced satellite imagery ideal as a backdrop for rural GIS professionals, catchment and soil groups, farm managers and regional planners. Covering the agricultural regions of South Australia, the Enhanced Satellite Image comes on ISO9660 standard CD-ROM. Technical specificationsThe Enhanced Satellite Image consists of Landsat Thematic Mapper (TM) pseudo-natural colour imagery at 25 metre resolution (one-sixteenth of a hectare). This resolution is ideal for regional planning, land cover mapping and as a backdrop for rural GIS vector datasets Each CD-ROM contains an image corresponding to a standard 1:250,000 map sheet (one degree north-south, one and a half degrees east-west). Each 1:250,000 image tile was created from mosaicked satellite imagery covering the agricultural regions of South Australia. The data is supplied in a variety of GIS/ remote sensing formats. These include:
Imagery is available in Transverse Mercator projection, aligned to the grid, in both AGD84 and GDA94 datums on the same CD-ROM. If you would like more information on Enhanced Satellite Imagery or would like to purchase a CD-ROM, please contact remote_sensing@saugov.sa.gov.au. Recent projects
Information within a satellite image can be simplified using a process called "image classification". The resultant image can be classified into a series of classes predetermined by the client using a variety of different methods. The choice of method usually depends on the clients' requirements. The classes could include broad classes including: water, native vegetation, plantation, pasture etc., and with client input and the right imagery it may be possible to classify an image into more specific classes (e.g., genus and/or species associations). To see examples of previous Image Data projects some Classification Sample Data is available on this site. For more information see:
|
|||||
 |
||
| This page was last modified 2005-10-20 | ||
|
||
