Results 81 to 90 of about 99,075 (290)

Use of wind profiler in severe weather monitoring

Meteorologische Zeitschrift, 1998
A 1299 MHz wind profiler was acquired to monitor low level winds near the Hong Kong International Airport. It was found that the equipment was also capable of yielding quality data to support the study of severe weather.
K. K. Yeung
doaj   +1 more source

Tropospheric Ozone at Northern Mid-Latitudes: Modeled and Measured Long-Term Changes

Atmosphere, 2017
In this paper, we investigate why current state-of-the-art chemistry-climate models underestimate the tropospheric ozone increase from the 1950s to the 1990s by approximately 50%.
Johannes Staehelin, Fiona Tummon, Laura Revell, Andrea Stenke, Thomas Peter   +4 more
doaj   +1 more source

Estimating the summertime tropospheric ozone distribution over North America through assimilation of observations from the Tropospheric Emission Spectrometer [PDF]

, 2008
We assimilate ozone and CO retrievals from the Tropospheric Emission Spectrometer (TES) for July and August 2006 into the GEOS-Chem and AM2-Chem models.
A. M. Thompson, Beer, Benkovitz, Bey, Bowman, Bowman, Brasseur, Chai, Clark, Clough, Cooper, Cooper, D. B. A. Jones, D. W. Tarasick, Duncan, Duncan, Elbern, Fiore, Fishman, Geer, GFDL GAMDT, Horowitz, Horowitz, Hudman, Hudman, J. C. Witte, Jones, Jourdain, K. W. Bowman, Khattatov, Kulawik, L. W. Horowitz, Lahoz, Lamarque, Lawrence, Li, Liang, Logan, Logan, Luo, Luo, M. Parrington, McLinden, Munro, Ménard, Nassar, Oltmans, Osterman, Pickering, Pierce, Price, Price, Randel, Rodgers, Sauvage, Segers, Stevenson, Tarasick, Tellmann, TES Science Team, Thompson, Thompson, Tie, Wild, Worden, Yevich   +65 more
core   +1 more source

The role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We use the Advanced Weather Research and Forecasting model to examine the role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems (LPSs). We find that LPSs penetrate deeply into India despite a dry land surface; however, their inland penetration is adversely affected when there is a reduction in the total surface heat ...
Akshay Deoras, Kieran M. R. Hunt, Andrew G. Turner   +2 more
wiley   +1 more source

Retrieval and Analysis of the Strongest Mixed Layer in the Troposphere

Atmosphere, 2020
In this article, Thorpe analysis, which often retrieves the characteristics of mixing in the free atmosphere from balloon sounding data, is applied to the data of the Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC).
Zheng Sheng, Lesong Zhou, Yang He
doaj   +1 more source

Tropospheric amplification of stratosphere–troposphere coupling

Quarterly Journal of the Royal Meteorological Society
Abstract During northern winter the stratospheric polar vortex is highly variable — even breaking down completely during sudden stratospheric warmings. The strength of the stratospheric polar vortex is observed to be coupled to surface weather, primarily through swings in the phase of the Northern Annular Mode — which is nearly ...
Mark P. Baldwin, Thomas Birner, Blanca Ayarzagüena   +2 more
openaire   +1 more source

Thermodynamic and microphysical properties of summertime marine fog observed from Sable Island

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Atmospheric profiling and near‐surface fog and visibility measurements revealed synoptic‐scale forcing as the dominant factor in fog formation over Sable Island, with deep fog layers under low‐pressure systems and shallow fog layers under high‐pressure systems.
Kelsey Rowe, Jesus Ruiz‐Plancarte, Ryan Yamaguchi, David Ortiz‐Suslow, Eric Pardyjak, Ismail Gultepe, Harindra J. S. Fernando, Qing Wang   +7 more
wiley   +1 more source

CARIBIC observations of gaseous mercury in the upper troposphere and lower stratosphere

E3S Web of Conferences, 2013
A unique set of gaseous mercury measurements in the upper troposphere and lower stratosphere (UT/LS) has been obtained during the monthly CARIBIC (www.caribic-atmospheric.com) flights since May 2005.
Slemr F., Ebinghaus R., Weigelt A., Kock H. H., Brenninkmeijer C. A. M., Schuck T., Hermann M., Zahn A., Velthoven P. van, Martinsson B., Ziereis H.   +10 more
doaj   +1 more source

Controls on boundary layer ventilation: Boundary layer processes and large-scale dynamics [PDF]

, 2010
Midlatitude cyclones are important contributors to boundary layer ventilation. However, it is uncertain how efficient such systems are at transporting pollutants out of the boundary layer, and variations between cyclones are unexplained. In this study 15
Adamson, Agustí-Panareda, Agustí-Panareda, Arya, Bethan, Bey, Browning, Carlson, Davies, Donnell, Eckhardt, Ekman, Esler, Farrell, Haltiner, Hannan, Harrold, Hess, Hess, Hines, Holton, Holtslag, Hoskins, Kowol-Santen, Lock, Polvani, Roe, Rotunno, S. E. Belcher, S. L. Gray, Shapiro, Simmons, Sinclair, Sinclair, Stull, Troen, V. A. Sinclair, Williams   +37 more
core   +1 more source

Assessing the impact of model biases on subseasonal forecast skill

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Relaxation experiments where the nudging was performed towards bias‐corrected integrations of the same model display significantly improved skill at weeks 3 and 4, particularly in the northern extratropics. This indicates that there is a large potential for improving dynamical subseasonal forecasting skill by improved treatment of model biases.
Frédéric Vitart, Magdalena Balmaseda
wiley   +1 more source