Utirik Atoll Utirik Atoll Utirik Atoll or Utrik Atoll (Marshallese: , ) is a coral atoll of 10 islands in the Pacific Ocean, and forms a legislative district of the Ratak Chain of the Marshall Islands. Its total land area is only , but it encloses a lagoon with an area of . It is located approximately east of Ujae Atoll. The population of Utirik Atoll is 409; it is one of the northernmost Marshall Islands with permanent habitation. The larger islets are: Its first recorded sighting was by the Spanish navigator Álvaro de Saavedra on board of the ship "Florida" on
Baa Atoll Biosphere Reserve the environment. Baa Atoll has a warm and humid tropical climate. The weather is dominated by two monsoon periods – a rainy monsoon period, which lasts from May to November, and a dry monsoon period, which lasts from January to March. The dominant natural environment of the reserve is marine, surrounded by deep ocean. The water depth varies considerably and includes lagoons with depths ranging from 30 m to 80 m, opening into the Indian Ocean, while channels running through the atoll may be up to 250-300 m in depth. The lagoons enclose a variety of reef structures including faros,