| Title | Detecting geothermal anomalies in NE of Morocco using Landsat8 OLI/TIRS sensor data |
|---|---|
| Authors | Meryem Redouane, Faouziya Haissen, Othman Sadki, Mohammed Raji, Hicham Si Mhamdi, Hind Khalis |
| Year | 2023 |
| Conference | World Geothermal Congress |
| Keywords | Remote sensing, Landsat-8 OLI/TIRS, LST, MODIS (MOD11A1), geothermal anomalies |
| Abstract | Abstract In the last few years, Remote sensing information attracted a wide range of interest among researchers in different disciplines. Investigation of renewable energy resources worldwide, especially for geothermal exploration was not an exception. In contrast to geophysical methods, the use of Remote sensing tools allow us to target a larger-scale area for thermal exploration, by working on thermal infrared imagery (TIRS) to acquire surface temperatures and identify thermal anomalies. This study investigates the geothermal potential of Northeast of Morocco, where the heat flow is significantly high and the geothermal gradient is of 129 °C/km. It also highlights the different geothermal anomalies for future studies and development. Land Surface Temperature (LST) is known as one of the indicators of the heat flow; however, the latter is not the only parameter that implies the changes on it, the meteorological conditions together with the altitude contribute in the result as well. Thus, we analysed LST derived from Landsat-8 OLI/TIRS of warm seasons of each year between 2016 and 2021, and used all other available data to evaluate the results. Although the produced map shows certain limitations, the result depicts correctly most of areas with high geothermal potential (zones with hot springs or wells Temperatures) and appear to correlate well with the fault trending system. We approve of the great effectiveness of TIRS remote sensing as an economic tool for geothermal mapping. |