Abstract
Climate change is characterized by rising temperatures,
precipitation/precipitation changes, sea level rise, and extreme events
that will impact on water availability in a region. An analysis of the
number of weather stations limited showed a temperature rise of about
0.5o occurred in the 20th century. This condition is
in line with the projected global temperature rise of IPCC AR-4 about
0.7o ± 0.2 per century. The risk of declining water
availability due to climate change in the Penukal Abab Lematang Ilir
(PALI) regency, South Sumatra will be assessed through a model
projection scenario analysis until 2030 against the 1960-1990 data base
as a normal reference condition. The study was conducted using spatial
analysis to show the risk of decreasing water availability using
Geographical Information System (GIS).