Validation of Satellite-Based Rainfall Estimates and Environmental Variables for Developing a Flood Vulnerability Index in Surakarta, IndonesiaErni Mulyandari, Rr. Rintis Hadiani, Sobriyah and Siti Farah WahidaE3S Web Conf., 645 (2025) 05003DOI: https://doi.org/10.1051/e3sconf/202564505003