Abstract—The future green world, without of greenhouse
gases, is possible to produce the electricity from the renewable
energy resources. The geothermal is one of the most potential
clean energy sources to be developed in the next century. The
geothermal energy potential study needs the temperature value
and amount of stored heat in the underground rocks. The
purpose of this research is to determine the earth’s crust
temperature at the depth of 3.5 to 10.5km for geothermal
energy potential calculation in Afghanistan. The temperature at
depth prediction model is based on the tectonic ages, tectonic
activity, geological structures, and hot spring data. To achieve
this goal, in GIS, the earth’s crust thickness, sediment thickness,
surface heat flow, mantle heat flow, and surface temperature
have been mapped. The temperature calculation formulas, as a
function of depth, were applied in GIS model to estimate the
temperature at depth. The analysis contains the sediment and
basement contribution along with surface temperature
correction considering the constant thermal conductivity and
radioactive heat generation in the crust. The resulting maps are
plotted for each km of depths from 3.5 to 10.5km. The
calculation result is in the range of; minimum 39°C and
maximum 347°C average temperature at the depth of 3.5km
and 10.5 km respectively. The huge geothermal energy (power
production) is available; First in Helmand, Kandahar, and
Herat provinces, moreover, in northern and eastern deeper
sedimentary region of the country at the depth of 3.5km. Second
in the all known geothermal fields of the country until the depth
of 5 km.
Index Terms—Afghanistan, geothermal energy, earth’s crust temperature, geographical information system.
The authors are with the Department of Electronic and Information Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Nakacho, Koganei-shi, Tokyo, 184-8588, Japan (e-mail: email@example.com, firstname.lastname@example.org).
Cite: Mohammad Abed Anwarzai and Ken Nagasaka, "A GIS-Based Analysis of Earth’s Crust Temperature at Depth for Geothermal Energy Exploration in Afghanistan," International Journal of Environmental Science and Development vol. 9, no. 1, pp. 1-7, 2018.