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Figure 3.3 Selected meteorological and hydrological stations for Palu Catchment
Table 3.3 Geographical coordinate of selected hydrology and meteorology observation stations.
Name LATTITUDE
LONGITUDE
Bora ‐1.027500
119.931389 Kalawara
‐1.166667 119.925278
Palolo ‐1.068611
120.078889 Wuasa
‐1.425000 120.322778
Bangga Atas ‐1.287222
119.900278 Bangga Bawah
‐1.243056 119.909722
Tuwa ‐1.321667
119.977222 Mutiara
‐0.915817 119.905517
mantikole ‐1.076600
119.868800
The daily rainfall data have been collected from time period of 1990 – 2009. Besides the rainfall data, temperature, humidity, sunshine, wind speed and
relative humidity data have been collected from two stations with time period of 1990-2009.
Figure 3.4 Annual averages rainfall of each rain gauge
1439 1174
725 1513
2129 1261
687 1074
1893 2309
1354 500
1000 1500
2000 2500
Bangga Atas Bora
Kulawi Mu\ara
Tanamea Wuasa
mm
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3.2.3 Soil Dataset
The soil types are obtained from Reconnaissance soil map PUSLITANAK, 1994. There are 9 kind of soil type found on the study area;
brown alluvial tropofluvents, grey alluvial udifluvents, greik alluvial hydraquents, cambisol dystrik distropepts, cambisol eutrik eutripepts, litosol-
latosol block, podsoic-litosol block, brown latosol tropodalfts, and brown padsolik trofodulfts. All of these soil types can be categorized into two main
order; inceptisols and ultisols. Inceptisols group can be identified by their texture; sandy clay, sandy loam clay, clay loam, and loam. This group can be found on
each sub-basin on the study area.
Figure 3.5 Soil map on Palu catchment.
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3.2.4 Hydrological Dataset
Daily series of discharge data of Palu River were collected from observation station of Ministry of Water Resources PU-SDA during the field-
work. There are two of river discharge stations available; one is located near to the estuary
precisely located under Palu II Bridge,
and one is located on the upper side of Palu River. Both of these discharge stations are recording the river discharge once
per day. The collected discharge data were used to validate the model.
Figure 3.6 Daily discharges recorded at Palu River observation station. Palu Catchment consist of more than 50 river which is can be grouped into five
major group; detail information about its stream network served in figure 3.7 as below:
Figure 3.7. List of existing river in Palu Catchment Draft of disaster management plan RPB of Palu City, 2009.
100 200
300 400
500
2002 2003
2004 2006
2007
Q m
3
s
