Sentences with phrase «aerosol cloud interactions»

A few days ago a paper (Sato et al) dealing with some aspects of the «Aerosol Cloud Interactions», (ACI, also called «aerosol indirect effects») was released.

The top panel shows the direct effects of the individual components, while the second panel attributes various indirect factors (associated with atmospheric chemistry, aerosol cloud interactions and albedo effects) and includes a model estimate of the «efficacy» of the forcing that depends on its spatial distribution.

Not exact matches

«This is a cutting - edge study in the field of cloud - aerosol - precipitation interactions that includes an interdisciplinary group of atmospheric chemists and meteorologists,» he said.

More models now include the major types of aerosols and the interactions between aerosols and clouds.

Mission leaders were relieved and eager to begin their studies of cloud and haze effects, which «constitute the largest uncertainties in our models of future climate — that's no exaggeration,» says Jens Redemann, an atmospheric scientist at NASA's Ames Research Center in Mountain View, California, and the principal investigator for ObseRvations of Aerosols above CLouds and their IntEractionS (ORACLES).

Researchers with the U.K. mission, called CLARIFY (Cloud - Aerosol - Radiation Interactions and Forcing for Year 2016), initially looked at relocating its research aircraft to Ascension Island, but they couldn't make the switch work logistically.

The request also calls for canceling five NASA earth science missions, including an operating Earth - facing camera on the Deep Space Climate Observatory satellite and the planned Plankton, Aerosol, Cloud, ocean Ecosystem satellite, set for launch in 2022, which would assess the ocean's health and its interactions with the atmosphere.

«One reason that we haven't appreciated the role of aerosols in the climate system is that many — most — models don't include aerosol - cloud interactions,» including only a handful of those used in IPCC's fifth assessment report, released in 2014.

The interactions between clouds and aerosols are illustrated in this image, taken by retired astronaut Chris Hadfield onboard the International Space Station.

Together with colleagues from Berlin and Geneva, climate researchers from Karlsruhe Institute of Technology (KIT) have been investigating the interactions of laser light and ice clouds using the unique AIDA aerosol and cloud chamber on KIT's Campus North.

Among the most uncertain elements in climate models are the effects of aerosols and their interactions with clouds — just the things involved in albedo modification — she says.

But for scientists, the interactions of the two have big implications for the climate and for the formation of tiny droplets, or aerosols, that lead to clouds.

Each cell contains algorithms that reflect the interactions among the ocean, clouds, water vapor, aerosols, trees, soil and other tiny widgets.

Professor Knippertz coordinates the new interdisciplinary project DACCIWA (Dynamics - aerosol - chemistry - cloud interactions in West Africa) that started on December 01, 2013 and will have a duration of four and a half years.

This mission is fulfilled by operating atmospheric observatories around the world that collect massive amounts of atmospheric measurements to provide data products that help scientists study the effects and interactions of clouds and aerosols and their impact on the earth's energy balance.

Activities will focus on the investigation of the interactions of aerosols and clouds.

Shiraiwa, M., Pfrang, C., Koop, T., and Pöschl, U.: Kinetic multilayer model of gas - particle interactions in aerosols and clouds (KM - GAP): linking condensation, evaporation and chemical reactions of organics, oxidants and water, Atmospheric Chemistry and Physics, 12, 2777 - 2794, 2012.

The NASA Plankton, Aerosol, Cloud, Ocean Ecosystem (PACE) mission, with a target launch within the next 5 years, aims to make measurements that will advance ocean and atmospheric science and facilitate interdisciplinary studies involving the interaction of the atmosphere with ocean biological systems.

This model, called the PNNL - Multi-scale Modeling Framework, depicts aerosol - cloud interactions in both stratiform and convective clouds in a more realistic way than conventional global models.

The multi-scale aerosol - climate model, an extension of a multi-scale modeling framework, examined specific aerosol - cloud interactions and their effects on the Earth's energy budget, one of the toughest climate forecasting problems.

An adjustment is necessary because as climate models are continually evaluated against observations evidence has become emerged that the strength of their aerosol - cloud interactions are too strong (i.e. the models» «aerosol indirect effect» is larger than inferred from observations).

Given the increasing availability of aerosol composition data collected from aircraft, the team expects that their approach can be successfully applied to improve understanding of a wide range of sophisticated processes and phenomena related to aerosols, including how properties evolve with time and the dynamic interactions between aerosols and clouds.

PNNL researcher Connor Flynn checks instruments atop the Atmospheric Measurement Laboratory at PNNL, one of the nation's leading research facilities for understanding aerosols, clouds, and their interactions.

Much of this uncertainty is due to the complexity of aerosols and their interactions with and impacts on cloud processes and properties, as well as the wide range of scales on which these interactions occur.

Unfortunately, the exact mechanisms of interactions between clouds and tiny aerosol particles from pollution, dust, and soot remained largely a mystery.

The team is also using their 2 - species VBS framework to study organic aerosols and cloud - aerosol interactions for other climate science field campaigns.

One of those complex interactions is aerosols, the microscopic particles of dust, soot, and chemicals dispersed in the atmosphere that scatter or absorb sunlight and act as seeds for cloud formation.

This study has advanced scientists» capabilities to model and predict those complex aerosol - cloud interactions on the Earth's energy budget, for a balanced and energy - sustainable future.

Senior Researcher Harri Kokkola, Finnish Meteorological Institute, tel. [phone], [email protected] Thomas, M. A., Kahnert, M., Andersson, C., Kokkola, H., Hansson, U., Jones, C., Langner, J., and Devasthale, A.: Integration of prognostic aerosol — cloud interactions in a chemistry transport model coupled offline to a regional climate model, Geosci.

The PNNL team is currently applying the approach, which grew out of the Aerosol Climate Initiative, to other types of simulations, so that future high - resolution climate models will solve the mystery surrounding aerosol - cloud interaAerosol Climate Initiative, to other types of simulations, so that future high - resolution climate models will solve the mystery surrounding aerosol - cloud interaaerosol - cloud interactions.

The new model has a stronger physical basis and produces clouds and cloud - aerosol interactions simulations that are more realistic than those using traditional cloud parameterizations.

Identification and parameterization of key processes involved in aerosol - cloud interactions

This type of systems perspective is critical to better understanding the interaction of aerosols and clouds and incorporating these processes into climate modeling frameworks.

Parameterizations of cloud microphysics, cumulus clouds, and aerosol - cloud interactions in regional / global climate models

He has pioneered the use of SP - CAM to study aerosol - cloud interaction and used it together with satellite observations to constrain aerosol indirect effects.

He is a co-chair of the U.S. Department of Energy's Atmospheric Systems Research Cloud - Aerosol - Precipitation Interactions Working Group, co-chair of the CESM Climate - Chemistry Working Group, and served 6 years on the Scientific Steering Committee for the Community Earth System Model.

Ghan is well recognized in the climate research community and highly regarded for his expertise in developing, evaluating, and applying parameterizations for climate models, including aerosol interactions with clouds.

Easter specializes in modeling tropospheric aerosols and trace gases and their interactions with clouds and precipitation.

Over the past several years, scientists from many institutions have explored the ability of SP - CAM to simulate tropical weather systems, the day - night changes of precipitation, the Asian and African monsoons, cloud - aerosol interactions and other climate phenomena.

Understanding of the fundamental physics and chemistry involved in aerosol - cloud interactions

Much of the uncertainty in projections of global climate change is due to the complexity of clouds, aerosols, and cloud - aerosol interactions, and the difficulty of incorporating this information into climate models.

Wang has extensive experiences on modeling aerosols, clouds and aerosol - cloud interactions in global climate models.

He has had a central role in PNNL's global aerosol, chemistry, and climate modeling, and in modeling studies of aerosols and cloud - aerosol interactions at local and regional scales.

Ghan, an atmospheric and climate scientist, has made seminal contributions to the representation of cloud - aerosol interactions in climate models.

Jerome Fast has lead a team of PNNL scientists that have contributed a gas - phase chemistry mechanism, an sectional aerosol model, cloud chemistry, cloud - aerosol interactions, and radiative feedback processes into the chemistry version of Weather Research and Forecasting (WRF - chem) model.

Proposed campaigns should focus on research that addresses the ARM mission of improving the understanding and representation of clouds and aerosols in climate and earth system models, as well as their interactions and coupling with Earth's surface.

Aerosol - cloud interactions in regional and global climate models: Uncertainties and discrepancies between models and observations

They also acknowledge the participants of the INSPECT and CLACE field studies, the support of the High Altitude Research Foundation Gornergrat and Jungfraujoch, and the experimental group at the Aerosol Interactions and Dynamics in the Atmosphere cloud chamber of Forschungszentrum Karlsruhe.

Observations of Aerosol / Trace Gases, Clouds, Precipitation, and Radiation from DOE Atmospheric Radiation Measurement (ARM) Climate Research Facility (Joint with the 19th Conference on Atmospheric Chemistry; the 9th Symposium on Aerosol - Cloud - Climate interactions to host)

The main research themes include greenhouse gas concentrations and ecosystem — atmosphere fluxes, the climate effects of atmospheric aerosols, aerosol — cloud interactions and air quality.