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Atmosphere, Volume 11, Issue 7

July 2020 - 96 articles

Cover Story: On 23/12/2009, windstorm Xola hit mainland Portugal, and brought damaging winds. Xola featured a prominent cloud head and a split cold front structure. Radar observations revealed banding and other features consistent with slantwise convection in the cloud head tip. At the tip end, a low-level jet streak was identified with maximum Doppler winds exceeding 55 ms−1 at just 400 m height, reflecting the presence of a Sting Jet. In southern mainland Portugal, the downburst winds, associated with a mesovortex, caused extensive damages in power towers. This mesovortex was embedded in a bow echo line, triggered by an upper cold front. View this paper
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Articles (96)

  • Article
  • Open Access
4 Citations
5,153 Views
18 Pages

18 July 2020

The accurate prediction of wildfire behavior and spread is possible only when fire and atmosphere simulations are coupled. In this work, we present a mechanism that causes a small fire to intensify by altering the atmosphere. These alterations are ca...

  • Article
  • Open Access
19 Citations
4,986 Views
16 Pages

Ozone Trends from Two Decades of Ground Level Observation in Malaysia

  • Fatimah Ahamad,
  • Paul T. Griffiths,
  • Mohd Talib Latif,
  • Liew Juneng and
  • Chung Jing Xiang

17 July 2020

We examine the change in surface ozone and its precursor behavior over 20 years at four locations in western Peninsular Malaysia which have undergone urban-commercial development. Trend and correlation analyses were carried out on ozone and oxides of...

  • Article
  • Open Access
14 Citations
4,549 Views
16 Pages

Characterization, Pollution Sources, and Health Risk of Ionic and Elemental Constituents in PM2.5 of Wuhan, Central China

  • Weiqian Wang,
  • Weilin Zhang,
  • Shiyang Dong,
  • Shinichi Yonemachi,
  • Senlin Lu and
  • Qingyue Wang

17 July 2020

Atmospheric PM2.5 samples from Wuhan, China were collected during a winter period of February and a summer period of August in 2018. The average PM2.5 mass concentration in winter reached 112 μg/m3—about two-fold higher than that found in summer. Eig...

  • Article
  • Open Access
3 Citations
3,231 Views
16 Pages

17 July 2020

Using the four-times daily and monthly-mean reanalysis datasets of NCEP/NCAR for the 1958 to 2018 period, we investigate the interannual variability of the June-July-August (JJA)–mean water vapor source and sink over the tropical eastern Indian Ocean...

  • Article
  • Open Access
16 Citations
5,773 Views
25 Pages

Evaluation of WRF-Chem Predictions for Dust Deposition in Southwestern Iran

  • Mansour A. Foroushani,
  • Christian Opp,
  • Michael Groll and
  • Amirhossein Nikfal

17 July 2020

The relationships between monthly recorded ground deposition rates (GDRs) and the spatiotemporal characteristics of dust concentrations in southwest Iran were investigated. A simulation by the Weather Research and Forecasting Model coupled with the C...

  • Article
  • Open Access
13 Citations
4,522 Views
16 Pages

Dependence of Mass–Dimensional Relationships on Median Mass Diameter

  • Saisai Ding,
  • Greg M. McFarquhar,
  • Stephen W. Nesbitt,
  • Randy J. Chase,
  • Michael R. Poellot and
  • Hongqing Wang

17 July 2020

Retrievals of ice cloud properties require accurate estimates of ice particle mass. Empirical mass–dimensional (m–D) relationships in the form m = a D b are widely used and usually universally applied across the complete range o...

  • Article
  • Open Access
10 Citations
5,067 Views
14 Pages

Assessment of Air Pollution with Polychlorinated Dibenzodioxins (PCDDs) and Polychlorinated Dibenzofuranes (PCDFs) in Lithuania

  • Vigilija Klima,
  • Renata Chadyšienė,
  • Rūta Ivanec-Goranina,
  • Dainius Jasaitis and
  • Vaida Vasiliauskienė

17 July 2020

Polychlorinated dibenzodioxins and polychlorinated dibenzofurans (PCDD/F) are highly bioavailable in humans, either through direct inhalation or indirectly by trophic transfer from contaminated food or water. The main sources of pollution with PCDD/F...

  • Article
  • Open Access
22 Citations
6,240 Views
14 Pages

Ambient Gaseous Pollutants in an Urban Area in South Africa: Levels and Potential Human Health Risk

  • Oyewale Mayowa Morakinyo,
  • Murembiwa Stanley Mukhola and
  • Matlou Ingrid Mokgobu

16 July 2020

Urban air pollution from gaseous pollutants is a growing public health problem in many countries including South Africa. Examining the levels, trends and health risk of exposure to ambient gaseous pollutants will assist in understanding the effective...

  • Article
  • Open Access
10 Citations
4,260 Views
26 Pages

16 July 2020

We used observational data and the results from a high-resolution numerical simulation model to analyze the occurrence and development of an extreme precipitation event in the Ili Valley, Xinjiang, China on 26 June 2015. We analyzed the horizontal wa...

  • Article
  • Open Access
39 Citations
8,635 Views
34 Pages

16 July 2020

Agricultural production in sub-Saharan Africa remains dependent on high inputs of human labor, a situation associated with direct exposure to daylight heat during critical periods of the agricultural calendar. We ask the question: how is the Wet-Bulb...

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Atmosphere - ISSN 2073-4433