The resource agencies are responsible for the thematic content of resource
maps. In particular, they conduct interpretation of aerial photographs and
other remote sensing imagery, evaluate the results, select the thematic content
to be overprinted on the resource map, decide on its cartographic
representation and enhancement and plot it on the orthophotographs.
Furthermore, such a scheme eliminates duplicity in operations of separate map
production by each resource agency. Consequently, it will provide user with the
better quality resource maps at lower cost and in shorter time.
3. MULTISTAGE AND MULTISENSOR REMOTE SENSING
Multistage and multisensor remote sensing was selected as the main data
acquisition method for the Project. Considering the size of Indonesia, prevailing
adverse weather conditions in some regions and the complexity of its vegetation and
land use patterns, no other survey method could collect the vast amount of data
required for the national resource mapping in the planned time period. It will be
supplemented by results of existing resource inventories and surveys, whenever they
are available. The application of remote sensing to resource inventories and
evaluation in Indonesia was recently described by Pranoto Asmoro 1978b).
The concept of multistage remote sensing is similar to that of a statistical
sampling design and follows the golden surveying rule: “From general to particular’.
Îts basic Project configuration will consist of three stages:
3.1 Reconnaissance remote sensing;
3.2 Small scale aerial photography;
3.3 Medium and large scale aerial photography.
3.1. Reconnaissance Remote Sensing
Reconnaissance remote sensing is based on images provided by Landsats which
are supplemented with the side looking airborne radar (SLAR) imagery in areas
covered most of the year by clouds.
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