Observations over Kuala Lumpur and climate model experiments reveal how the warmth of cities compared to the surrounding area enhance extreme rainfall events.
Tag Archive: tropics
Research brief: New model explores the relationship between humidity, instability, and precipitation in the tropicsNovember 26, 2019 9:57 am Comments Off on Research brief: New model explores the relationship between humidity, instability, and precipitation in the tropics
In this paper, CLEX researchers considered the steady-state response of the atmosphere to an imposed large-scale flow. They found that under these steady-state conditions, humidity increases with the precipitation rate, while the lapse rate (rate of decrease of temperature with height) increases.
Thus study used satellite scatterometry to measure the horizontal component of winds over the sea surface in the Maritime Continent. It combined data with scatterometer to give additional insights into gravity wave structure in this region.
Seminar: Is there any evidence of a poleward expansion in the subtropical jet stream in either hemisphere?April 29, 2019 11:14 am Leave your thoughts
Penny Maher (University of Utrecht) The tropics are expanding poleward at about 1 degree per decade in observations. The Hadley cell edge is one common measure of tropical expansion. One alternative method is the trend in the subtropical jet position. Unlike the Hadley cell edge, the observed trends in the subtropical jet position are much smaller and often not significant. This makes us question if current methods adequately identify the subtropical jet position. The “tropopause gradient method” is introduced to... View Article