Earth's surface albedo is regularly estimated via Earth observation satellite sensors such as NASA's MODIS instruments on board the Terra and Aqua satellites, and the CERES instrument on the Suomi NPP and JPSS.
ˈɜːθz sˈɜːfɪs ælbˈiːdoʊ ɪz ɹˈɛɡjʊlɚli ˈɛstᵻmˌeɪɾᵻd vˈaɪəɹ ˈɜːθ ɑːbzɚvˈeɪʃən sˈæɾəlˌaɪt sˈɛnsɚz sˈʌtʃ ɐz nˈæsɐ mˈoʊdiz ˈɪnstɹəmənts ˌɔn bˈoːɹd ðə tˈɛɹə ænd ˈækwə sˈæɾəlˌaɪts, ænd ðə sˈiəɹiːz ˈɪnstɹəmənt ɔnðə sjuːˈoʊmi ˌɛnpˌiːpˈiː ænd dʒˌeɪpˌiːˌɛsˈɛs.