. . . . . . "Free surface position is the vertical displacement of the water's suface relative to a referance level (mean sea level), expressed in meters." . "Zeta" . . . . . . "height" . . "water" . . "datum: relative to main sea level" . . . . "Arvin Rastegar" . "2026-06-17T13:01:58.638Z"^^ . . . . . "Zeta" . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzymtTYCOhZMR6OcAN9w2t82zy6tPY5UkyFAEyxdvUUFaHciaH4dxdSgrCXdg8GoZIOW7wQEJGtom7D1fkFOfVFVgLb4wApmPen87msSXoAN1yPeDEkD4BFQ+GanBFQxqebpmgjF9tLIkZFziShWQrAyBOqy4K44YCYq/l94FIdRZGabV9IAngZwydWh2TBBBahuwsysHulhkdgiedWKl75mdsYgDzHlAJz4BnQ8Az9w+k7LnwQDPvThTZJtt+dFAW/y1M3WKzf+9biSlLgbHtRWYI6Z9ovetZi8vWiW2lpiCvyfGKNIgP+Q38D1i3gJEPQnj+iK8Nw9LLHhg8bV+yQIDAQAB" . "xMJQ30xgaACGlHMc/LjMmxnu4SNyRepi6FVDaHrZRvMsi9T/O7Eo1wlisKuLutfeW6eVXg0XusDqi9WNrFK4lrZCWjyoAJNiJdtkCViP2NAqYP5WXp6BLtHtj/dJ0hn6QDndN2elwneh8d8azHqu0ZMZpRU/53SRPN1ouLwZoHqfQ6BNKv0pECoFO0hhkA4wITct0yq1kcuP2UbAC+FKGQJIHfLstTXawtdVy/JNpfL09TeO35lfLnRFqqXRtG/+8izMU8DX2QD0zgkx+t35VSgfrELFVmrULZmGV0tUHbUf2KT0c2h3ntwhjt6ewzs2n/oP0MeCY+yzf86mf5m9dQ==" . . .