Sentences with phrase «phase clouds»

Understanding how mixed - phase clouds form and what affects their lifetime and properties will help scientists understand how they affect the overall climate.

Snow - producing mixed - phase clouds originate along the southwest coast of the Greenland Ice Sheet, where the upward slope to Summit is gentle and unimpeded.

Surface winds from the Summit NOAA meteorological data are shown in a-c: (a) shows all surface winds from 2010 - 2016 for all times; (b) shows surface winds for the ice cloud snow cases; and (c) shows surface winds for the mixed phase cloud snow cases.

Isaac Held, a National Oceanic and Atmospheric Administration climate scientist, said he agreed with the researchers about the «the importance of getting the ice - liquid ratio in mixed - phase clouds right,» but he doesn't agree that global climate models generally underestimate climate sensitivity.

Using a three - dimensional cloud - resolving model with explicit representations of cloud physics, scientists simulated single - and multi-layer mixed - phase clouds observed in previous field studies.

Tsushima, Y., et al., 2006: Importance of the mixed - phase cloud distribution in the control climate for assessing the response of clouds to carbon dioxide increase: a multi-model study.

Stillwell R. A., R. R. Neely, J. P. Thayer, M. D. Shupe and D. D. Turner (February 2018): Improved cloud - phase determination of low - level liquid and mixed - phase clouds by enhanced polarimetric lidar.

Early AWARE data show mixed - phase clouds over McMurdo, in the first detailed measurements of such cloud systems outside the Arctic.

The first, mixed - phase clouds, hold water vapor, supercooled cloud liquid droplets, and ice particles.

Modeling experiments by Tan and two other scientists focused on inbetweeners — mixed - phase clouds, such as undulating stratiform and fluffy stratocumulus clouds, which are abundant over the vast Southern Ocean and around the Northern Hemisphere north of New York.

«Many models are overestimating how much ice is in the mixed - phase clouds.»

«When carbon dioxide concentrations and temperatures rise, then mixed - phase clouds will increase their liquid water content,» said Ivy Tan, a PhD candidate at Yale University who led the research, which investigated common clouds that contain both ice and water.

Why it matters: Arctic mixed - phase clouds are complex because they consist of both ice and water.

Ice nuclei, a type of aerosol particle in the atmosphere, form the ice crystals in mixed - phase clouds.

Results: A team led by Pacific Northwest National Laboratory (PNNL) researchers has presented two processes, or explanations, for how extra ice crystals form in mixed - phase clouds — clouds containing both water and ice — which are prevalent throughout the Arctic.

A better understanding of Arctic mixed - phase clouds, in which both liquid and ice particles often form in a churning system of updrafts and downdrafts, leads to a better picture of clouds in global climate models, improving the accuracy of climate projections.

Atmospheric scientists at Pacific Northwest National Laboratory are adding pieces to the climate change puzzle by studying Arctic mixed - phase clouds.

Methods: Clouds formed at cold temperatures, such as Arctic mixed - phase clouds, contain both liquid water droplets and ice particles.

The main mode, which is involved in the formation of ice crystals in mixed - phase clouds (clouds formed by ice particles and water droplets), is the immersion freezing mode.

The composition of these mixed - phase clouds is fundamentally unstable.

What's Next: With this new knowledge of the complex interactions between dynamic and microphysical processes in mixed - phase clouds, researchers can improve the representation of these clouds in climate models.

Airborne and ground - based measurements from an International Polar Year field project were used to revisit a long - standing problem in cloud physics: what is the primary source of ice crystals in mixed - phase clouds?

However, past studies of such Arctic mixed - phase clouds have been unable to explain the measured abundance of ice crystals larger than 100 micrometers in maximum dimension (the size range where measurements are available), given observed environmental conditions and the measured concentrations of ice nuclei that could be entrained into the observed shallow cloud layers from aloft.

During her postdoc years at the ETH Zurich and the Carnegie Institution for Science in Stanford, she extended her analyses to include mixed - phase clouds.

«Retrieving the Polar Mixed - Phase Cloud Liquid Water Path by Combining CALIOP and IIR Measurements.»

Mixed - phased clouds are very common across the Earth, especially in cold and temperate regions, occurring, not surprisingly, higher in the air in mid-latitude regions and closer to the ground as you near the poles.