Results 11 to 20 of about 246,652 (294)

Mechanical Forcing of Convection by Cold Pools: Collisions and Energy Scaling [PDF]

Journal of Advances in Modeling Earth Systems, 2020
Forced mechanical lifting through cold pool gust fronts can trigger new convection and, as previous work highlights, is enhanced when cold pools collide. However, as shown by conceptual models, the organization of the convective cloud field emerging from
Bettina Meyer, Jan O. Haerter
doaj   +3 more sources

Role of surface heat fluxes underneath cold pools [PDF]

Geophysical Research Letters, 2016
AbstractThe role of surface heat fluxes underneath cold pools is investigated using cloud‐resolving simulations with either interactive or horizontally homogenous surface heat fluxes over an ocean and a simplified land surface. Over the ocean, there are limited changes in the distribution of the cold pool temperature, humidity, and gust front velocity,
Pierre Gentine, Seung-Bu Park, Ji Nie
exaly   +5 more sources

Particle‐Based Tracking of Cold Pool Gust Fronts [PDF]

Journal of Advances in Modeling Earth Systems, 2020
The gust fronts of convective cold pools (CPs) are increasingly recognized as loci of enhanced triggering for subsequent convective cells. It has so far been difficult to track these gust fronts in high‐resolution data, such as large eddy simulations ...
Olga Henneberg, Bettina Meyer, Jan O. Haerter   +2 more
doaj   +5 more sources

Characterizing convective cold pools [PDF]

Journal of Advances in Modeling Earth Systems, 2017
AbstractCold pools produced by convective storms play an important role in Earth's climate system. However, a common framework does not exist for objectively identifying convective cold pools in observations and models. The present study investigates convective cold pools within a simulation of tropical continental convection that uses a cloud ...
Aryeh Drager, Susan C Van Den Heever
exaly   +2 more sources

Aircraft observations of cold pools under marine stratocumulus [PDF]

Atmospheric Chemistry and Physics, 2013
Although typically associated with precipitating cumuli, cold pools also form under shallower stratocumulus. This study presents cold-pool observations as sampled by the NSF/NCAR C-130, which made cloud and boundary-layer measurements over the ...
C. R. Terai, R. Wood
doaj   +4 more sources

Cold Pools as Conveyor Belts of Moisture [PDF]

Geophysical Research Letters, 2020
Abstract Observations and simulations have found convective cold pools to trigger and organize subsequent updrafts by modifying boundary layer temperature and moisture as well as by lifting air parcels at the outflow boundaries.
Herman F Fuglestvedt, Jan Olaf Haerter
exaly   +6 more sources

Cold Pool Responses to Changes in Soil Moisture [PDF]

Journal of Advances in Modeling Earth Systems, 2020
This study examines the role of soil moisture in modulating convective cold pool properties in an idealized modeling framework that uses a cloud‐resolving model coupled to an interactive land surface model.
Aryeh J. Drager, Leah D. Grant, Susan C. van denHeever   +2 more
doaj   +2 more sources

Mechanisms for convection triggering by cold pools [PDF]

Geophysical Research Letters, 2015
AbstractCold pools are fundamental ingredients of deep convection. They contribute to organizing the subcloud layer and are considered key elements in triggering convective cells. It was long known that this could happenmechanically, through lifting by the cold pools' fronts.
Giuseppe Torri, Zhiming Kuang, Yang Tian
exaly   +4 more sources

On the Sensitivity of Convective Cold Pools to Mesh Resolution

Journal of Advances in Modeling Earth Systems, 2023
It is well recognized that triggering of convective cells through cold pools (CPs) is key to the organization of convection. Yet, numerous studies have found that both the characterization and parameterization of CP effects in numerical models is ...
Romain Fiévet, Bettina Meyer, Jan O. Haerter   +2 more
doaj   +2 more sources

Extremely cold ocean temperatures in iron formation brine pools of snowball Earth [PDF]

Nature Communications
For the severe low-latitude “snowball Earth” glaciations, glacial deposits occurring on all continents is well-established. However, cold, salty, ice-covered oceans—a salient prediction of snowball Earth—is difficult to establish geologically.
Kai Lu, Lianjun Feng, Ross N. Mitchell, Maxwell A. Lechte, Paul F. Hoffman   +4 more
doaj   +2 more sources