| dc.description.abstract | Data and accurate information needed in the management of watersheds,
one of them is Digital Elevation Model DEM. this research aims to create Digital
Elevation Model (DEM) manually, presenting information DEM Rawatamtu subwatershed
and evaluate DEM produced. A method of creating DEM using
software ArcGIS 10 with input data obtained from digitazion map in a geocentric
manner Indonesia (RBI) and survey the scorching tile with global positioning
system (GPS). DEM that has been created having spatial resolution 10 meters
with a height 3032,44 m.dpl maximum and minimum 33,82 m.dpl. Information
from Rawatamtu sub-watershed such as contour (showing the condition of the
surface of the land), slope (showing the level of the steepness of the land), aspect
(showing the direction of the slope), 3 dimensional display (visualize land forms
in 3D), and line of sight (determine the state of a place can be seen from
elsewhere). Based on the test results, DEM made manually with spatial resolution
10 meters, the level of error is relatively small and could describe characteristic
of topography the watershed of more detailed. | en_US |
