Monitoring natural analog of Geologic Carbon Sequestration using multi-temporal Landsat TM images in Mammoth Mountain, long valley cadera, California

Geologic Carbon Sequestration (GCS) has been proposed as one of the "clean coal" technologies for mitigating the more extreme impacts of global warming. GCS has being studied by many nations which aim to reduce atmospheric CO₂ emissions over the last two decades. However, the safety of underground geologic storage (sequestration) of CO₂ must be evaluated properly. Therefore, careful site monitoring is the single most important way to manage shortand long- term risks of GCS. Besides, the natural analogs of Geologic Carbon Sequestration can be very useful for evaluating the impact of carbon dioxide leaks from engineered geologic storage reservoir. The natural leakage at Mammoth Mountain site is an example of diffuse CO₂ gas seepage which could affect vegetation health as revealed by using change detection method. The multi-temporal satellite data sets of Landsat 5TM were used and analyzed. The result shows that NDVI change detection can identify the change of vegetation health around Mammoth Mountain site, CA.