Atmospheric sciences Reference Libraries

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Urban Heat Island
2013-04-02 15:35:21

An urban heat island (UHI) is a metropolitan area that is drastically warmer than its surrounding rural areas because of human activities. The phenomenon was first looked into and described by Luke Howard during the 1810s, although he wasn’t the one to name the phenomenon. The difference in temperature is normally bigger at night as opposed to during the day, and it most obvious when winds...

2013-04-02 09:46:56

Desertification is a form of land degradation in which a comparatively dry land area becomes more and more arid, normally losing its bodies of water along with its wildlife and vegetation. This is a result of a variety of factors, such as climate change and human activities. Desertification is an important global, ecological, and environmental issue. There is substantial controversy over the...

Climate Change
2013-04-01 11:05:27

Climate change is a substantial and lasting change in the statistical distribution of weather patterns over periods of time ranging from decades to millions of years. It might be a change in the average weather conditions, or in the distribution of weather around the average conditions. Climate change is a result of factors that include oceanic processes, biotic processes, variations in solar...

Weather Model Discussion How To Use Surface Dew-points For
2013-01-29 08:53:47

Surface Dew-points can play a huge role in weather forecasting. The first such role is that it helps determine the amount of moisture in the atmosphere for a given point. If we look at the current dew-point map above from January 28, 2013 we can note several things of interest. First, if we look at where the black circle is around the number 70, we can make note that this air right off the...

Weather Education - Air Mass Thunderstorms
2013-01-13 10:30:47

Air mass thunderstorms are found in marine time tropical air. In short they are also known as MT Thunderstorms. Air mass thunderstorms represent what is known as the common three stage thunderstorm development. This means that an air mass thunderstorm goes through the stages of Cumulus which is represented by the updrafts only being present; secondly it moves into the mature stage where it...

Weather Education - Super-cell Thunderstorms
2013-01-13 09:51:18

In this lesson we are going to take a look at super-cell thunderstorms and what they mean and how they impact our daily lives. First, a super-cell thunderstorm is formed from a cumulus-nimbus cloud.  Super-cell thunderstorms are the most advanced form of thunderstorms known on earth. This is because these types of thunderstorms need so many things to come together in the atmosphere at the...

Weather Education - Orographic Thunderstorms
2013-01-13 09:40:16

Orographic thunderstorms are formed when the air is pushed up a mountain side. This type of thunderstorm is found only on the windward side of a mountain range. In the United States we would find these types of thunderstorms on the western slopes of the Rocky Mountains and also on the western slopes of the Appalachians. Things that make this thunderstorm important: First of all they only...

Rare Snow Visits South Africa August 7 8 2012
2012-08-08 09:26:03

The area in red in the above image has been experiencing winter weather which is quite rare to the region; also at this time many places are still seeing rain and snow. From the South African Weather Service, they are forecasting for the Eastern Cape “Very Cold with snow heavy at times.” The majority of the regions in red in the image are going to see more rain and snow today, and some...

Tropical Storm Alberto Timeline
2012-05-24 08:26:54

Tropical Storm Alberto was named the first tropical storm of the Atlantic 2012 Hurricane Season on May 20th at 1200PM CDT. The location of the storm at this time was just to the southeast of South Carolina. The winds were estimated at 40kts gusting to 50kts. On May 20th at 0600PM CDT Tropical Storm Alberto had winds estimated at 45kts with gust to near 55kts. At this time the storm was just...

EL-Nino Update July 5 2012
2012-07-05 11:03:00

Say it’s not so, but we could be very well on the verge of entering into an EL-Nino cycle soon. How soon? The latest forecast issued by the Climate Prediction Center has upped the chances of seeing EL-Nino this year now at 61% with the favorable time period pointing towards the 3rd quarter (July-September).  What does this mean to you? Well it all depends on where you’re living as EL-Nino...

Word of the Day
  • A person or thing gazed at with wonder or curiosity, especially of a scornful kind.
The 'stock' of 'gazingstock' comes from an Old English word meaning 'tree trunk' or 'wood'.