#TITLE_ALTERNATIVE#

• Main Author: ROHMAN HUKAMA (NIM 128 05 020), IFTITAH
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/12230
• Institution: Institut Teknologi Bandung

Padang Pariaman Ground Water Basin has an Equatorial rainfall pattern with 2 maximum and 1 minimun. The maximum usually occurs at March and December with rates of 235,8 mm and 424,9 mm, and the minimum occurs at June with a rainfall rate of 237 mm.<p> <br /> <br /> <br /> <br /> <br /> NDVI (Normalized Difference Vegetation Indeks) done to Landsat TM images is one of the methods used to acquire the vegetation index. Vegetation index is the quantitative correlation according to the digital number of a satellite image to count the biomass or the vegetation intensity on the surface. With the use of NDVI, the vegetation intensity of an area is acquired.<p> <br /> <br /> <br /> <br /> <br /> Transformation of NDVI to runoff is done with 3 approximation. First, TPKA approximation by using polynomial regression orde 2 (TPKA = -63,61x2 – 116,66x + 46,977). Second, LPT approximation by using linier regression (LPT = 127,19x – 2,4779). Finally, by using direct approximation. The results shows that Padang Pariaman Ground Water Basin has a good vegetation index (83,80%) with positive NDVI value. NDVI method correlation test shows 85,37% trust rate.<p> <br /> <br /> <br /> <br /> <br /> Local conditions of land cover at the weather station expected have relation with the pattern variation of the local rainfall and also the runoff, it is acquired that 37,99% of the rainfall will become runoff, comparable with the runoff coefficient. At Tabing station, settlement area (73,42%) has a runoff coefficient of 0,7 and the amount of yearly runoff is around 2521 mm. Sasak station, forest area (50,92%) has a runoff coefficient of 0,45 and yearly runoff of 1389 mm. Sicincin station, farming area has a runoff coefficient of 0,5 and the amount of yearly runoff is 2052 mm.