Figure 2 - Detection of Geothermal Anomalies in Hydrothermal Systems Using ASTER Data: The Caldeiras da Ribeira Grande Case Study (Azores, Portugal)

Location of the study area highlighting the surrounding area of the RG4 well (signed as a black triangle). (A) São Miguel DEM; (B) orthophoto map of the RG4 surrounding area in 2006, before the thermal anomaly; and (C) UAV RGB image after the thermal anomaly, 2020 (Source: CIVISA). The red line corresponds to the area with the highest concentration of anomalies and visible alteration of vegetation.

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Reference

Detection of Geothermal Anomalies in Hydrothermal Systems Using ASTER Data: The Caldeiras da Ribeira Grande Case Study (Azores, Portugal) - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/Location-of-the-study-area-highlighting-the-surrounding-area-of-the-RG4-well-signed-as-a_fig1_368599926 [accessed 26 Jan 2025]

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Figure 2. Location of the study area highlighting the surrounding area of the RG4 well (signed as a black triangle). (A) São Miguel DEM; (B) orthophoto map of the RG4 surrounding area in 2006, before the thermal anomaly; and (C) UAV RGB image after the thermal anomaly, 2020 (Source: CIVISA). The red line corresponds to the area with the highest concentration of anomalies and visible alteration of vegetation.

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<a href="https://www.researchgate.net/figure/Location-of-the-study-area-highlighting-the-surrounding-area-of-the-RG4-well-signed-as-a_fig1_368599926"><img src="https://www.researchgate.net/profile/Artur-Gil/publication/368599926/figure/fig1/AS:11431281120839741@1676652764950/Location-of-the-study-area-highlighting-the-surrounding-area-of-the-RG4-well-signed-as-a.png" alt="Location of the study area highlighting the surrounding area of the RG4 well (signed as a black triangle). (A) São Miguel DEM; (B) orthophoto map of the RG4 surrounding area in 2006, before the thermal anomaly; and (C) UAV RGB image after the thermal anomaly, 2020 (Source: CIVISA). The red line corresponds to the area with the highest concentration of anomalies and visible alteration of vegetation."/></a>