Furthermore, we find that the mean anvil cloud feedback along trajectories is positive and consistent with results from more traditional cloud feedback calculation methods. However, the increases in sources are counteracted by increases in sinks of ice, particularly snow formation and sedimentation. The anvil ice mixing ratio is larger in a warmer climate due to a larger source of ice by detrainment and larger depositional growth leading to a more negative net cloud radiative effect along detrained trajectories. Trajectory results indicate that anvil cloud lifetime is about 15 h with no significant change in a warmer climate. Well, you might already know that in weather, anvil (or anvil cloud) refers to the flat, spreading top of a cumulonimbus cloud that can spread hundreds of miles downwind of a thunderstorm. The shelf of the anvil may precede the main cloud's vertical component for many kilometres (miles), and be accompanied by lightning. Comparison with geostationary satellite data shows that the model is able to simulate maritime mesoscale convective systems reasonably well. Well-developed cumulonimbus clouds are characterized by a flat, anvil -like top (anvil dome), caused by wind shear or inversion at the equilibrium level near the tropopause. 1 It signifies a thunderstorm in its mature stage, succeeding the cumulonimbus calvus stage. With this approach we gain new insight into the anvil cloud evolution both in present day and future climate. A cumulonimbus incus from Latin incus 'anvil', also called an anvil cloud, is a cumulonimbus cloud that has reached the level of stratospheric stability and has formed the characteristic flat, anvil -shaped top. ![]() We therefore conduct simulations with the high resolution version of the exascale earth system model in which we track mesoscale convective systems over the tropical Western Pacific and compute trajectories that follow air parcels detrained from peaks of convective activity. These are powerful thunderstorm clouds that can form dangerous supercell storms. Currently available observational data reveal instantaneous snapshots of anvil cloud properties, but cannot provide a process based perspective on anvil evolution. Anvil clouds are a subtype of cumulonimbus clouds that form a flat, anvil-shaped top. Their net impact on the climate system depends on how much time they spend in their cooling and warming stages. Despite the relevance of anvil clouds for climate and responses of clouds to global warming, processes dominating their evolution are not well understood. Tropical thunderstorms generate expansive cloud systems (anvil clouds) that initially exert a cooling effect but evolve over time to produce a warming effect. The evolution of tropical anvil clouds from their origin in deep convective cores to their slow decay determines the climatic effects of clouds in tropical convective regions. Browse 3,000+ anvil cloud stock photos and images available, or search for microburst to find more great stock photos and pictures.
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