Tidal (service) Tidal (service) Tidal (stylized as TIDAL) is a subscription-based music, podcast and video streaming service that combines lossless audio and high-definition music videos with exclusive content and special features on music. The service is maintained by the Norwegian company Aspiro AB. The service has over 60 million tracks and 240,000 music videos. Tidal claims to pay the highest percentage of royalties to music artists and songwriters within the music streaming market, while offering two levels of digital music streaming service: Tidal Premium (lossy quality) and Tidal HiFi (lossless CD quality – FLAC-based 16-Bit/44.1 kHz – and MQA). Tidal was launched
Tidal prism not as great as in shallower estuaries creating a smaller tidal prism and a longer residence time. The size of an inlet or estuary is determined, according to O’Brien by tidal prism. Tidal prism magnitude can be calculated by multiplying the area of the estuary by the tidal range of that estuary. During spring or fall tides, when sea level is relatively high and floods backbarrier areas that are normally above tidal inundation, the cross sectional area at the entrance of the estuary increases as tidal prism increases. Since tidal prism is largely a function of area of open water