Earth from Space - Image Description

STS056-152-052 Himalayan Foothills and Valleys, Nepal April 1993
The brown area near the center of the photograph is a section of the east-west trending Himalayan foothills [average elevation of 2000 feet (610 meters)] with north-south flowing rivers and deep valleys. South of these foothills, the Tarai, a subtropical, fertile lowland, merges into part of the northern plains of the Ganges River in northern India. A small section of the southeast-flowing, multichanneled Gandak River of northeast India is visible near the southwestern corner of the photograph. Many oxbow lakes and meander scars northeast of the present watercourse denote the former stream channels for this river. A northwest-southeast canal pattern that looks like very narrow black lines traverses the plains. North of the foothills appear mountains with deeply incised river valleys and elevations ranging between 8000 and 9000 feet (2440 and 2740 meters) above sea level. Part of the capital, Kathmandu (estimated population of 385 000), is visible in a valley along the eastern edge of the photograph. Deforestation has removed approximately one-third of Nepal's alpine woodlands since the 1960s. Space Shuttle photography provides a tool to monitor and map land use change and the rate of deforestation.

This service is provided by the International Space Station program and the JSC Earth Science & Remote Sensing Unit, ARES Division, Exploration Integration Science Directorate.