Estimating Surface Nitrate Concentrations in the Coastal Areas of the Around Savu Sea and Southern Sumba Island Based on Remote Sensing DataTrio Ardiansyah, Ary Giri DwiKartika, Ashari Wicaksono and Aries Dwi SiswantoBIO Web Conf., 89 (2024) 01003DOI: https://doi.org/10.1051/bioconf/20248901003