Satellite data An IKONOS satellite image from 10 November 2001

Satellite data
An IKONOS satellite image from 10 November 2001 (panchromatic, 1m resolution) was
acquired for the study area; it covers the major part of Kirtipur municipality (Map 2). (The
IKONOS satellite is the world’s first commercial, high-resolution imaging satellite. It was
launched on September 24, 1999, and can collect 1m resolution panchromatic images and 4m
resolution multispectral images simultaneously.) The IKONOS image was used as a reference
during field verification and to update the road data in the KUDP database. The image was
compared with the orthophoto derived from 1992 aerial photographs to study the changes
that had occurred during the intervening decade, particularly in residential areas.

Data on social infrastructure
A field survey was used to collect data on more than 1000 institutional service functions of
six different types: educational institutions, public utilities, public institutions, health facilities,
markets, and factories/industries. Information on the locations of these services was mapped
using GIS and attribute information entered accordingly. Information collected from the
FAO-supported Vegetable Market Analysis Project (FAO 2000) was also integrated into the
database. The initial field survey and data collection was done in 1999-2000. Field visits were
again carried out jointly with Kirtipur Municipality in 2003 to update and verify these data.

Data on utilities
As far as possible, information on utility lines, i.e., telephone, electricity, and water supply
networks, was obtained from the local offices of the respective utilities in Kirtipur during the
field survey in 2000. Although the available information was not comprehensive and generally
in the form of sketch maps, the study attempted to integrate it into the database. Data on
public utilities such as ponds, spouts, wells, water tanks and taps were collected in 2000 and
updated during the 2003 field survey.

Socioeconomic data
Ward-wise population data from the 2001 census was obtained from the Central Bureau of
Statistics (CBS). Since Kirtipur Municipality was created after the 1991 census, the data for
1991 was estimated from the population figures for the VDCs that were included when the
municipality was formed. It was not possible to integrate much of the demographic data
available from the 1991 census as the ward boundaries today do not match the VDC
boundaries used in that census.