| dc.description.abstract | The Merawu River is located in the upper reaches of the Serayu River and
is a priority sub-watershed. With the population growth in Banjarnegara
Regency, for example in 2019 there were 923,215 people and an increase
in 2020 to 1,017,767 people, it will affect the fulfillment of raw water
needs. Therefore, an analysis of the potential water availability for raw
water needs in the Merawu watershed. The analysis of 90% mainstay
discharge used observational discharge data from Clangap Station, but
for completing the discharge data loss using The FJ Mock Model. In the
FJ Mock Model, there was data analysis. Evapotranspiration calculation
uses climatological data from Karangkobar Station in 2003 using the
Penman Modification method. The data used are monthly rainfall data
from 2 rain gauge stations (Kalisapi and Karangkobar Stations). The
results of the calculation of water availability with 90% reliability
obtained calculated discharge from January to December are 46.28;
47.02;42.09; 21.27; 12.93; 9.18; 5.62; 3.11; 4.53; 10.24; 22.68; and
26.65 m 3 /second respectively. The value of raw water demand in the
Merawu watershed in 2033 is 0.363 m3/second. The results of water
availability were sufficient for raw water needs. Even if the calculation
used all data on the population of Banjarnegara Regency, the mainstay
discharge also still met the raw water demand of 1.67 m3/second. | en_US |
