The threshold table simply tells the GIS software which color to use when displaying certain pixels. The highest point is 750m above sea level at Jabel Hureish, 3.5 Km east of the Jaba'a village, while the lowest elevation is 90m above sea level at El Mukhabba area, south of Muqebila village at the Israeli border. The view faces southeast and an exaggeration factor of 10 is used. The basic use of this model is for land use planning, analysis and modeling. The eastern slopes are located between the Jordan Valley and the central highland.
Mountain crests form the watershed line and separate the eastern and western slopes.
Altitudes range on average between 500 and 650 meters above sea level. The western slopes, characterized by gentle slopes, have elevation ranges between 100 and 400 meters above sea level. The climate of the Jenin district is governed by its position on the eastern Mediterranean. Winter in the Jenin district is moderate and rainy, while summer is hot and dry. Table 1.1 shows the variation of average climatic parameters from data collected over 42 years from Beit Qad weather station.