Small for gestational age (SGA) babies are those whose birth weight lies below the 10th percentile for that gestational age. Low birth weight (LBW), is sometimes used to define a baby that weighs less than 5 lb 8 oz (2500 g) regardless of gestational age.
Historical Examples. 1  The present writer has collected several hundred local wind namesâand is constantly adding to the list. 2  Because local wind systems dominate the trade winds, these deserts are less stable than other deserts.
Global Wind Patterns wind belts of the general circulation. The global wind pattern is also known as the general circulation and the surface winds of each hemisphere are divided into three wind belts: 1  Polar Easterlies: From 60-90 degrees latitude. 2  Prevailing Westerlies: From 30-60 degrees latitude (aka Westerlies).