Erg (landform) Erg (landform) An erg (also sand sea or dune sea, or sand sheet if it lacks dunes) is a broad, flat area of desert covered with wind-swept sand with little or no vegetative cover. The term takes its name from the Arabic word "ʿarq" (), meaning "dune field". Strictly speaking, an erg is defined as a desert area that contains more than of aeolian or wind-blown sand and where sand covers more than 20% of the surface. Smaller areas are known as "dune fields". The largest hot desert in the world, the Sahara, covers and contains several ergs, such as
Erg (tug) currently on display at the Maritime Museum of the Atlantic on Lower Water Street. Erg (tug) Erg was a vessel built and owned by Halifax Steamship Ltd. in 1915. She was used to ferry workers across the harbour to vessels under repair during the Second World War. "Erg" was sunk in the Halifax Harbour three times and is currently located in the Bedford Basin. "Erg" was originally a steam tug called "Sambro" and was built by the Halifax Shipyard in 1915. She was one of the earliest steel vessels to be built in Halifax. "Sambro" was 55 feet long and