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PRODIGE Project

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PROduction D'Information GEographique

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Production Centre for Geographic Information

### Background

In June 1996, Spot Image based in Toulouse, France, signed a contract with the Remote Sensing Centre of the General Department (GDLA) in Hanoi, Vietnam. The scope of this project is to set up an Imagemap production centre and to train the staff of GDLA on Remote Sensing and Geographic Information technologies. The aim is to realize a successful technology transfer enabling the GDLA to create a nationwide Geographic Information System (GIS).

SPOT IMAGE has developed in-house capabilities to design and implement large projects around the world based on Remote Sensing data.

### Some figures about Vietnam

Vietnam is a country of 72 million inhabitants with an area of 332,000 square metres. The total coverage of the country requires 168 SPOT images and 818 map sheets at the scale of 1/50000.

### Use of satellite imagery

Since 1980s satellite data have been used in several applications: general mapping at scales 1:50,000 to 1:100,000, generation of land use maps for land management, forestry (change monitoring and development planning) and geological mapping.

### New needs

However, decision makers involved in Vietnam's rapid development process now need a new tool for retrieval and processing of geographic information. Such a tool should be set up in a short time and is expected to provide homogeneous and up-to-date information over the whole national territory. Moreover, this new facility should allow the integration of existing information such as old maps or old databases.

Coverage of Vietnam territory with SPOT images

© CNES 1996 . Multispectral SPOT image of Hanoi (False Colors) |

### Components of the project

The project will include different components. The three main parts will be the supply of satellites images, the setting up of a production centre and a comprehensive training programme.

### 1- Satellites images:

170 Multispectral images will be acquired over Vietnam providing an updated and complete coverage of the country with a resolution of 20 metres. In addition some selected areas will be covered with the acquisition of Panchromatic images with a resolution of 10 metres.

These satellites images will be used to produce

SPOTView imagemaps at the scale of 1/50000.

### 2- Production Center

The production centre will include two main components, a SPOTView production line and a Geographic Information System.

The GDLA will produce more than 800 SPOTView. The SPOTView are based on a digital format which is designed to allow a direct assimilation by most GIS software. The SPOTView are also produced in analog format such as film and photo prints.

The GIS will integrate information extracted from different sources: the imagemaps, the existing maps, the existing databases and the ground survey data.

© ESA 1996 . SPOTView Product, Haiphong, Vietnam

© ESA 1996 . Multispectral SPOT image of Hanoi (True Colors) | The existing maps will be digitized through scanners to transfer the information into the GIS database. The information will be used to update existing maps, and later on to produce a new set of topographic maps covering the whole country.

### 3- Training Programme

A specific training programme has been designed to address the main technologies within the scope of this project. The main topics are: Remote Sensing and GIS, Project Management, SPOTView Production, Map Updating using GIS, Photographic Processes, System Management, Software and Hardware Maintenance.