Tidal marsh Tidal marsh A tidal marsh (also known as a "tidal wetland") is a marsh found along rivers, coasts and estuaries which floods and drains by the tidal movement of the adjacent estuary, sea or ocean. Tidal marshes experience many overlapping persistent cycles, including diurnal and semi-diurnal tides, day-night temperature fluctuations, spring-neap tides, seasonal vegetation growth and decay, upland runoff, decadal climate variations, and centennial to millennial trends in sea level and climate. They are also impacted by transient disturbances such as hurricanes, floods, storms, and upland fires. Tidal marshes are differentiated into freshwater, brackish and salt according to the salinity
Convention Relating to the Distribution of Programme-Carrying Signals Transmitted by Satellite Convention Relating to the Distribution of Programme-Carrying Signals Transmitted by Satellite The Convention Relating to the Distribution of Programme-Carrying Signals Transmitted by Satellite was opened for signature on 21 May 1974 in Brussels and entered into force on 25 August 1979. It is overseen by the United Nations Committee on the Peaceful Uses of Outer Space. Convention provides for the obligation of each Contracting State to take adequate measures to prevent the unauthorized distribution on or from its territory of any programme-carrying signal transmitted by satellite. As of 2014, the convention has been ratified by 37 states; there are 10