Photogrammetry and GIS technol 1ogies for monitoring coastal erosion Along Dar es Salaam Coastline

Dar es Salaam coastline is seriously suffering from coastal soil erosion and pollution and it has been neglected from its famous attractive scenarios/scenes since the past decades. Each year the situation becoming worse as coastal erosion continues to destroy the ocean shore and other man made infrastructures along the coastal zone. Kunduchi area is the most affected area due to the 1977 storm surge and climatical changes in the world. Aerial photography taken from 1967 to 1992 of Dar es Salaam area were used to investigate the rate of erosion along the coast. GIS being a tool for geo-spatial analysis, was used to examine the recent development of integrated coastal zone management and the distribution of geospatial data. The requirements for geo spatial database of the coastal zone are outlined and the contribution of photogrammetric technique is examined. The paper further discusses the trend, the direction and the amount of soil erosion of the study area for effective control and management of the coastal zone. The paper concludes by suggesting methods for control and management of Dar es Salaam cost. © 2000 International Society for Photogrammetry and Remote Sensing. All rights reserved.