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Shape Temperature Relationship Of Ice Crystals In Mixed Phase Clouds Based On Observations With Polarimetric Cloud Radar
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Book Synopsis Shape-temperature Relationship of Ice Crystals in Mixed-phase Clouds Based on Observations with Polarimetric Cloud Radar by : Alexander Myagkov
Download or read book Shape-temperature Relationship of Ice Crystals in Mixed-phase Clouds Based on Observations with Polarimetric Cloud Radar written by Alexander Myagkov and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shape-temperature Relationship of Ice Crystals in Mixed-phase Clouds Based on Observations with Polarimetric Cloud Radar by : Alexander Myagkov
Download or read book Shape-temperature Relationship of Ice Crystals in Mixed-phase Clouds Based on Observations with Polarimetric Cloud Radar written by Alexander Myagkov and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mixed-Phase Clouds by : Constantin Andronache
Download or read book Mixed-Phase Clouds written by Constantin Andronache and published by Elsevier. This book was released on 2017-09-28 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed-Phase Clouds: Observations and Modeling presents advanced research topics on mixed-phase clouds. As the societal impacts of extreme weather and its forecasting grow, there is a continuous need to refine atmospheric observations, techniques and numerical models. Understanding the role of clouds in the atmosphere is increasingly vital for current applications, such as prediction and prevention of aircraft icing, weather modification, and the assessment of the effects of cloud phase partition in climate models. This book provides the essential information needed to address these problems with a focus on current observations, simulations and applications. - Provides in-depth knowledge and simulation of mixed-phase clouds over many regions of Earth, explaining their role in weather and climate - Features current research examples and case studies, including those on advanced research methods from authors with experience in both academia and the industry - Discusses the latest advances in this subject area, providing the reader with access to best practices for remote sensing and numerical modeling
Book Synopsis Light Scattering by Ice Crystals by : Kuo-Nan Liou
Download or read book Light Scattering by Ice Crystals written by Kuo-Nan Liou and published by Cambridge University Press. This book was released on 2016-10-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume outlines the fundamentals and applications of light scattering, absorption and polarization processes involving ice crystals.
Book Synopsis The Microphysics of Ice Clouds by : Rosemary M. Dyer
Download or read book The Microphysics of Ice Clouds written by Rosemary M. Dyer and published by . This book was released on 1979 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published results of observations of crystal habits, particle sizes and numbers of ice particles in clouds are summarized and discussed. There are systematic variations with cloud type, and in some instances, with cloud age and location within a cloud system. However, the body of data available is insufficient to formulate a climatology of ice cloud microphysics. The several measurement techniques in current use are evaluated, as are some of the techniques now under consideration for future use. The particle enhancement observed on some occasions is discussed, and the various theories accounting for it presented. Finally, recommendations are made concerning future field programs and theoretical studies required before accurate predictions of the ice cloud microphysical environment can be made. (Author).
Book Synopsis Microphysical Properties of Single and Mixed-phase Arctic Clouds Derived from Ground-based AERI Observations by : David D. Turner
Download or read book Microphysical Properties of Single and Mixed-phase Arctic Clouds Derived from Ground-based AERI Observations written by David D. Turner and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radar Polarimetry for Weather Observations by : Alexander V. Ryzhkov
Download or read book Radar Polarimetry for Weather Observations written by Alexander V. Ryzhkov and published by Springer. This book was released on 2019-03-25 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph offers a wide array of contemporary information on weather radar polarimetry and its applications. The book tightly connects the microphysical processes responsible for the development and evolution of the clouds’ bulk physical properties to the polarimetric variables, and contains the procedures on how to simulate realistic polarimetric variables. With up-to-date polarimetric methodologies and applications, the book will appeal to practicing radar meteorologists, hydrologists, microphysicists, and modelers who are interested in the bulk properties of hydrometeors and quantification of these with the goals to improve precipitation measurements, understanding of precipitation processes, or model forecasts.
Book Synopsis Polarimetric Doppler Weather Radar by : V. N. Bringi
Download or read book Polarimetric Doppler Weather Radar written by V. N. Bringi and published by Cambridge University Press. This book was released on 2001-08-30 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2001 book provides a detailed introduction to the principles of Doppler and polarimetric radar, focusing in particular on their use in the analysis of weather systems. The design features and operation of practical radar systems are highlighted throughout the book in order to illustrate important theoretical foundations. The authors begin by discussing background topics such as electromagnetic scattering, polarization, and wave propagation. They then deal in detail with the engineering aspects of pulsed Doppler polarimetric radar, including the relevant signal theory, spectral estimation techniques, and noise considerations. They close by examining a range of key applications in meteorology and remote sensing. The book will be of great use to graduate students of electrical engineering and atmospheric science as well as to practitioners involved in the applications of polarimetric radar systems.
Book Synopsis Ice Particle Habit Effects On The Resilience Of Arctic Mixed-Phase Stratus Clouds In One-Dimensional Model Simulations by : Abhisek Das
Download or read book Ice Particle Habit Effects On The Resilience Of Arctic Mixed-Phase Stratus Clouds In One-Dimensional Model Simulations written by Abhisek Das and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arctic single layer mixed-phase clouds were studied using a one-dimensional model that incorporated the adaptive habit growth model for ice microphysics. The base case was from the Indirect and Semi-Direct Aerosol Campaign, and it was perturbed over a range of cloud temperatures, ice nuclei concentrations, and large-scale subsidence velocities, quantities upon which mixed-phase cloud glaciation timescales are dependent. The focus of the study was quantifying mixed-phase cloud glaciation timescale dependence on these three parameters. To this end, a metric of liquid cloud evolution based on liquid water path changes was developed and used to characterize mixed-phase cloud evolution towards glaciation. Dependence of the metric on cloud temperatures from -30°C to -5°C, ice nuclei concentrations from 0.10 L-1 to 30 L-1 in a diagnostic nucleation scheme, and strong to moderate (observed) to no subsidence, with both spherical and habit-dependent ice crystal growth, was investigated. Spherical and habit-dependent ice crystal growth led to different relationships between critical ice nuclei concentration, the ice nuclei concentration above which a mixed-phase cloud glaciates, and cloud average temperature and subsidence strength. For spherical ice crystal growth, the relationship between critical ice nuclei concentration and cloud average temperature is monotonic, with the critical ice nuclei concentration decreasing with decreasing cloud average temperature. With strengthening subsidence, the critical ice nuclei concentration decreases for every cloud average temperature. For habit-dependent ice crystal growth, the relationship with cloud average temperature is not monotonic because ice crystals develop dendritic and columnar habits near -15°C and -7°C, respectively. At these two temperatures ice crystals grow faster and deplete more supercooled liquid water, leading to deep local minima in critical ice nuclei concentrations around these two temperatures. As for spherical growth, critical ice nuclei concentrations decrease with increasing subsidence for habit-dependent ice crystal growth. Habit-dependent ice crystal growth coupled with cloud average temperature, critical ice nuclei concentration, and subsidence strength lead to significant changes in Arctic mixed-phase cloud lifetimes.
Book Synopsis Ice Formation and Evolution in Clouds and Precipitation by : Darrel Baumgardner
Download or read book Ice Formation and Evolution in Clouds and Precipitation written by Darrel Baumgardner and published by . This book was released on 2018-03-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Ice crystals, with their myriad shapes, sizes and densities, play an important role in the formation, evolution and subsequent impact of ice and mixed-phase clouds on weather and climate. There are numerous pathways through which ice crystals nucleate, grow and dissipate. Although many of these are understood theoretically and have been simulated in the laboratory and cloud chambers, they are less well documented in natural clouds. The challenges of making measurements from moving platforms in an environment that is spatially inhomogenous and temporally unsteady, as well as sometimes at high altitudes and in clouds with icing potential makes these clouds difficult to observe. Nevertheless, the importance of ice clouds on climate and the hydrological cycle compels us to better understand ice processes through improved measurements over as broad of a temporal and geographical scale as possible. This monograph represents a collection of articles that do exactly that."-- Book jacket.
Book Synopsis Depth-time-temperature Relationships of Ice Crystal Growth in Polar Glaciers by : Anthony Jack Gow
Download or read book Depth-time-temperature Relationships of Ice Crystal Growth in Polar Glaciers written by Anthony Jack Gow and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of ice crystals as a function of depth and time in polar firn and glacier ice has been investigated at a number of locations in Antarctica and Greenland. Thin sections of snow and ice were used to measure crystal size variations. Crystal growth rates are strongly temperature dependent with growth being very much retarded at the lower englacial temperatures. At Camp Century, Greenland, where the firn temperature is -24C (constant below 10 m depth) crystals grow approximately 23 times faster than at Plateau Station, Antarctica, where the in situ temperature is -57C. (Author).
Book Synopsis Arctic mixed-phase clouds : Macro- and microphysical insights with a numerical model by : Loewe, Katharina
Download or read book Arctic mixed-phase clouds : Macro- and microphysical insights with a numerical model written by Loewe, Katharina and published by KIT Scientific Publishing. This book was released on 2017-09-15 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides new insights into macro- and microphysical properties of Arctic mixed-phase clouds: first, by comparing semi-idealized large eddy simulations with observations; second, by dissecting the influences of different surface types and boundary layer structures on Arctic mixed- phase clouds; third, by elucidating the dissipation process; and finally by analyzing the main microphysical processes inside Arctic mixed-phase clouds.
Book Synopsis Numerical Modeling of Arctic Mixed-phase Layered Clouds by : Yaosheng Chen
Download or read book Numerical Modeling of Arctic Mixed-phase Layered Clouds written by Yaosheng Chen and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Arctic mixed-phase clouds are often multi-layered. Different cloud layers interact through radiation as well as ice precipitation falling from upper layer clouds into the lower layer clouds. The evolution of an Arctic mixed-phase stratiform cloud under prescribed perturbations from an overlaying cloud in the form of downwelling longwave radiation and ice precipitation was simulated and documented. The perturbations created regions with heterogeneous properties in the horizontal direction within the lower level cloud, the consequence of which was the development of a mesoscale circulation that propagated the perturbations well beyond the location of the initial perturbed region.In a separate study, we forward modeled radar Doppler spectra based on a large-eddy simulation (LES) model simulation of a single layer Arctic mixed-phase cloud and compared the modeled quantities with those retrieved from the observations. We show that there was a significant contribution from the microphysical broadening to the cloud radar Doppler spectral width in Arctic mixed-phase clouds. LES simulations configured with different ice particle characteristics captured different aspects of the observations in the simulated case, where a mixture of ice particles of different properties were likely present. The dynamics of the LES simulations, characterized with the total turbulent kinetic energy dissipation rate, agreed fairly well with the values retrieved from the observations. Due to significant numerical dissipation in the model for the case evaluated here, the TKE dissipation rate from the subgrid-scale model did not represent the dissipation rate in the model.
Book Synopsis Fine-scale Horizontal Structure of Arctic Mixed-Phase Clouds by : M. Shupe
Download or read book Fine-scale Horizontal Structure of Arctic Mixed-Phase Clouds written by M. Shupe and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent in situ observations in stratiform clouds suggest that mixed phase regimes, here defined as limited cloud volumes containing both liquid and solid water, are constrained to narrow layers (order 100 m) separating all-liquid and fully glaciated volumes (Hallett and Viddaurre, 2005). The Department of Energy Atmospheric Radiation Measurement Program's (DOE-ARM, Ackerman and Stokes, 2003) North Slope of Alaska (NSA) ARM Climate Research Facility (ACRF) recently started collecting routine measurement of radar Doppler velocity power spectra from the Millimeter Cloud Radar (MMCR). Shupe et al. (2004) showed that Doppler spectra has potential to separate the contributions to the total reflectivity of the liquid and solid water in the radar volume, and thus to investigate further Hallett and Viddaurre's findings. The Mixed-Phase Arctic Cloud Experiment (MPACE) was conducted along the NSA to investigate the properties of Arctic mixed phase clouds (Verlinde et al., 2006). We present surface based remote sensing data from MPACE to discuss the fine-scale structure of the mixed-phase clouds observed during this experiment.
Book Synopsis Ice Crystal Measurements with the New Particle Spectrometer NIXE-CAPS by : Jessica Meyer
Download or read book Ice Crystal Measurements with the New Particle Spectrometer NIXE-CAPS written by Jessica Meyer and published by Forschungszentrum Jülich. This book was released on 2013 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Practical Meteorology by : Roland Stull
Download or read book Practical Meteorology written by Roland Stull and published by Sundog Publishing, LLC. This book was released on 2018 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt: A quantitative introduction to atmospheric science for students and professionals who want to understand and apply basic meteorological concepts but who are not ready for calculus.
Book Synopsis Remote Sensing of Clouds and Precipitation by : Constantin Andronache
Download or read book Remote Sensing of Clouds and Precipitation written by Constantin Andronache and published by Springer. This book was released on 2018-02-21 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents current applications of remote sensing techniques for clouds and precipitation for the benefit of students, educators, and scientists. It covers ground-based systems such as weather radars and spaceborne instruments on satellites. Measurements and modeling of precipitation are at the core of weather forecasting, and long-term observations of the cloud system are vital to improving atmospheric models and climate projections. The first section of the book focuses on the use of ground-based weather radars to observe and measure precipitation and to detect and forecast storms, thunderstorms, and tornadoes. It also discusses the observation of clouds using ground-based millimeter radar. The second part of the book concentrates on spaceborne remote sensing of clouds and precipitation. It includes cases from the Tropical Rainfall Measuring Mission (TRMM) and the Global Precipitation Measurement (GPM) mission, using satellite radars to observe precipitation systems. Then, the focus is on global cloud observations from the ClaudSat, Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO), including a perspective on the Earth Clouds, Aerosols, and Radiation Explorer (EarthCARE) satellite. It also addresses global atmospheric water vapor profiling for clear and cloudy conditions using microwave observations. The final part of this volume provides a perspective into advances in cloud modeling using remote sensing observations.
