High-pressure area radiation and temperatures rise. At night, the absence of clouds means that outgoing longwave radiation (i.e. heat energy from the surface) is not absorbed, giving cooler diurnal low temperatures in all seasons. When surface winds become light, the subsidence produced directly under a high-pressure system can lead to a buildup of particulates in urban areas under the ridge, leading to widespread haze. If the low level relative humidity rises towards 100 percent overnight, fog can form. Strong, vertically shallow high-pressure systems moving from higher latitudes to lower latitudes in the northern hemisphere are associated with continental arctic air masses. Once
High pressure metamorphic terranes along the Bangong-Nujiang Suture Zone localized shearing between coherent lithospheric blocks is proposed to explain the high elevations observed in Tibet. Oblique subduction and large-scale sinistral strike-slip faults leading to eastward extrusion of lithospheric material would be responsible for the growth of Tibet to the east. High pressure metamorphic terranes along the Bangong-Nujiang Suture Zone High pressure terranes along the ~1200 km long east-west trending Bangong-Nujiang suture zone (BNS) on the Tibetan Plateau have been extensively mapped and studied. Understanding the geodynamic processes in which these terranes are created is key to understanding the development and subsequent deformation of the BNS and Eurasian deformation as