9/1/2023 0 Comments Satellite 3d view of my house![]() ![]() The term is used both when establishing the relation between aerial images and coordinates and also to determine the spatial location of other geographical features. To georeference something means to define its existence in physical space, that is establishing its location in terms of map projections or coordinates. To use imagery in a GIS, it is necessary to georeference or orthorectify the imagery. Georeferenced and orthorectified photographs This imagery can be viewed as a basemap on Six Maps or the Spatial Collaboration Portal. The Spatial Services Imagery Capture Program has also captured more recent aerial imagery over NSW. Due to the size of the file and JP2 format, users may have issues opening the images if they do not have appropriate software. This imagery is supplied in a digital format by FTP link as an unprocessed JPEG2000 (JP2). Ordering higher resolution Historical Imageryįor customers who want to purchase a higher resolution version of historical imagery, this product is still available, and users can contact the Service Delivery Team for further information. Over Sydney, these images can also be viewed as a mosaic, allowing users to explore the city and its history. Users can search an area of interest, and look at thumbnails of each available frame and download a 600dpi version of a chosen image, free of charge. The new Historical Imagery Viewer, as part of the Spatial Collaboration Portal, allows users to search, discover and download historical imagery from our library, dating back to the 1930s. Free viewing and download of aerial imagery Obtaining aerial photos from different periods can be a useful way to research the history of an area or to verify different uses of land over time. ![]() Imagery from the pastĪerial imagery provides a valuable source of information for studying, monitoring, forecasting and managing natural resources and human activities. Aerial Imagery is captured across NSW and is available with a range of years from 1930s through to current. ![]() Spatial Services holds a wide range of aerial photography and other historical imagery of NSW for viewing and purchase. ![]()
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