Results 21 to 30 of about 28,484 (242)

Occurrence of polar stratospheric clouds at Kiruna [PDF]

Annales Geophysicae, 1999
Polar stratospheric clouds (PSCs) are often observed in the Kiruna region in northern Sweden, east of the Scandinavian mountain range, during wintertime. PSC occurrence can be detected by ground-based optical instruments.
C.-F. Enell, Å. Steen, T. Wagner, U. Frieß, K. Pfeilsticker, U. Platt, K.-H. Fricke   +6 more
doaj   +1 more source

Statistical Characteristics of Mesoscale Convective Systems Initiated over the Tibetan Plateau in Summer by Fengyun Satellite and Precipitation Estimates

Remote Sensing, 2021
In order to investigate the key characteristics of mesoscale convective systems (MCSs) initiated over the Tibetan Plateau (TP) in recent years and the main differences in circulation and environmental factors between different types of MCSs, an automatic
Xidi Zhang, Wenqiang Shen, Xiaoyong Zhuge, Shunan Yang, Yun Chen, Yuan Wang, Tao Chen, Shushi Zhang   +7 more
doaj   +1 more source

The Response of Parameterized Orographic Gravity Waves to Rapid Warming over the Tibetan Plateau

Atmosphere, 2020
Using the ERA-Interim reanalysis during 1979–2017, this work for the first time investigates the climatology and long-term trend of orographic gravity waves (OGWs) in the Tibetan Plateau (TP).
Runqiu Li, Xin Xu, Yuan Wang, Miguel A. C. Teixeira, Jianping Tang, Yixiong Lu   +5 more
doaj   +1 more source

Surface winds in the Euro-Mediterranean area: the real resolution of numerical grids [PDF]

Annales Geophysicae, 2004
Surface wind is a variable of great importance in forcing marine waves and circulations, modulating surface fluxes, etc. Surface wind defined on numerical grids is currently used in forecast-analysis, as well as in climatology. Gridded fields, however,
F. Chèruy, A. Speranza, A. Sutera, N. Tartaglione   +3 more
doaj   +1 more source

Scientific Objectives, Measurement Needs, and Challenges Motivating the PARAGON Aerosol Initiative [PDF]

, 2004
Aerosols are involved in a complex set of processes that operate across many spatial and temporal scales. Understanding these processes, and ensuring their accurate representation in models of transport, radiation transfer, and climate, requires ...
Anderson, Theodore L., Charlson, Robert J., Davies, Roger, Diner, David J., Kahn, Ralph A., Ogren, John A., Schwartz, Stephen E., Seinfeld, John H., Wielicki, Bruce A.   +8 more
core   +1 more source

A Hybrid Four‐Dimensional Variational Data Assimilation System for the Model for Prediction Across Scales (MPAS‐Atmosphere): Leveraging the Joint Effort for Data Assimilation Integration (JEDI)

Journal of Advances in Modeling Earth Systems
A global Four‐Dimensional Ensemble Variational (4DEnVar) data assimilation system for the Atmospheric component of the Model for Prediction Across Scales (MPAS‐A) is presented that uses the Joint Effort for Data assimilation Integration (JEDI).
R. G. Nystrom, C. Snyder, Z. Liu, B. J. Jung, J. Ban, I. H. Banos   +5 more
doaj   +1 more source

Statistical Analysis of Mesovortices during the First Rainy Season in Guangdong, South China

Remote Sensing, 2023
Based on Doppler radar observation and reanalysis data, the statistical characteristics of mesovortices (MVs) during the first rainy season (April–June) in Guangdong, South China, from 2017 to 2019 are studied, including their spatiotemporal ...
Ying Tang, Xin Xu, Yuanyuan Ju, Zhenyu Wu, Shushi Zhang, Xunlai Chen, Qi Xu   +6 more
doaj   +1 more source

An Objective Analysis Technique for Constructing Three-Dimensional Urban-Scale Wind Fields [PDF]

, 1980
An objective analysis procedure for generating mass-consistent, urban-scale three-dimensional wind fields is presented together with a comparison against existing techniques.
Goodin, William R., McRae, Gregory J., Seinfeld, John H.   +2 more
core   +1 more source

Wind Resource Evaluation With Atmospheric Stability Across Different Surface Types

Energy Science &Engineering, EarlyView.
Wind resource evaluation with atmospheric stability across different surface types. ABSTRACT This study investigates the influence of atmospheric stability on wind resource assessment across various surface conditions, focusing on wind shear and prevailing wind direction as key analytical parameters.
Zejia Hua, Wei Tao, Guanjun Wang
wiley   +1 more source

Dampening of the Precipitation Response to Aerosol Pollution From Turbulence in Cumulus Clouds

Geophysical Research Letters
Using aircraft observations and a cloud model with particle‐based microphysics, it is shown that the enhancement of drop collision‐coalescence from turbulence in clouds not only leads to earlier onset of rain in warm cumulus clouds as past studies have ...
Kamal Kant Chandrakar, Hugh Morrison
doaj   +1 more source