Aims and Scope

The Open Atmospheric Science Journal is an Open Access online journal, which publishes reviews/mini-reviews, research articles, letters and guest edited thematic issues in all areas of climate research and atmospheric science. The journal’s coverage includes studies on atmospheric environmental issues. Topics include the following:


  • Weather systems and prediction
  • Climate dynamics and variability
  • Satellite meteorology
  • Remote sensing
  • Air chemistry and air pollution
  • Cloud microphysics and precipitation
  • Severe weather and natural atmospheric hazards

The Open Atmospheric Science Journal a peer reviewed journal, is an important and reliable source of current information on developments in the field of atmospheric sciences. Emphasis is placed on publishing quality papers rapidly, and making them freely available to researchers worldwide.


Editor's Choice

MODIS Summer SUHI Cross-sections Anomalies over the Megacities of the Monsoon Asia Region and Global Trends

Hofit Itzhak-Ben-Shalom, Pinhas Alpert, Oded Potchter, Rana Samuels

Background:

Evidence has accumulated in recent years regarding the scope of local and global climate changes attributed to exacerbating anthropogenic factors such as accelerating population growth, urbanization, industrialization, traffic and energy use. Remote space monitoring, unlike ground-based measurements, has the advantage of providing global coverage on a daily basis.

Methods:

MODIS (Moderate Resolution Imaging Spectroradiometer) Aqua and Terra 1°×1° spatial resolution as well as the 1 km higher resolution of Aqua-MODIS were investigated for a global overview of megacities temperature variations, as well as the recent trends of the 10 largest Monsoon Asian megacities.

Results:

The average Land Surface Temperature (LST) cross-sections of the 10 Asian megacities were examined for June-August 2002-2014. Temperature variations fit a spatial bell-shaped curve, with a pronounced maximum over the city center. Nighttime data indicated sharp LST decreases with distance from the city center, particularly in the coldest cities, those of Tokyo, Seoul, Osaka and Beijing.

Conclusion:

Daytime latitudinal (E-W) and longitudinal (N-S) Surface Urban Heat Islands (SUHI) have steeper gradients than for nighttime data. During daytime, the SUHI gradients are largest in Tokyo, Seoul, Osaka and Beijing with values reaching 15oC followed by the cities of Shanghai and Guangzhou with ~11oC, and Karachi with ~5oC SUHI. Nighttime SUHIs were more moderate, 4-6oC in Tokyo, Seoul ~5oC, Osaka 5-7oC and Beijing ~7oC. Only in the three largest megacities, i.e., Tokyo, Guangzhou and Shanghai, did the nighttime LST trends decline.


October 31, 2017
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