Kristine Mae Rodriguez Carnicer¹, *Maria Cecilia Dandan Galvez¹, Rui M.S. Fernandes², Edgar Amemita Vallar¹ (1.Environment and RemoTe sensing ResearcH (EARTH) Laboratory, Physics Department, De La Salle University, Manila, 2.Space and Earth Geodetic Analysis Laboratory (SEGAL), University of Beira Interior, Portugal)