News tagged with weather
(Medical Xpress)—High blood pressure is something that has traditionally been a problem in Scotland, but might there be a link to our climate?
Health 14 hours ago | not rated yet | 0
(HealthDay)—The monstrous tornado that devastated Moore, Okla., on Monday, killing dozens of adults and children, is a stunning example of violent weather that can affect a child's mental well-being.
Psychology & Psychiatry May 21, 2013 | not rated yet | 0
U.S. health officials say last year was the worst ever for West Nile virus deaths.
Diseases, Conditions, Syndromes May 13, 2013 | not rated yet | 0
Following some of the coldest and wettest weather on record, around 4.9 million people in the UK (10 per cent) are more likely to risk scorching themselves in strong sun in an attempt to get a tan this summer, ...
Cancer Apr 29, 2013 | 1 / 5 (1) | 1
(HealthDay)—For large environments with multiple openings, natural ventilation is effective, and can be supplemented with extract fans in cold weather, according to a study published in the July issue of ...
Health Apr 25, 2013 | not rated yet | 0
Health officials in Costa Rica said an outbreak of dengue fever has sickened 7,000 people, with many cases occurring in some of this Central American country's most popular tourist areas.
Diseases, Conditions, Syndromes Apr 10, 2013 | not rated yet | 0
Psychologists have traditionally characterized compulsive gambling as an "impulse control disorder," and treated it by addressing the patient's obsessive tendencies. But according to Prof. Pinhas Dannon of Tel Aviv University's ...
Psychology & Psychiatry Mar 19, 2013 | not rated yet | 1
(HealthDay)—The spring allergy season is off to an early start and allergy sufferers need to take action to prevent symptoms, an expert says.
Immunology Mar 17, 2013 | 5 / 5 (3) | 0
Two types of environmental conditions—cold-dry and humid-rainy—are associated with seasonal influenza epidemics, according to an epidemiological study led by researchers at the National Institutes of Health's Fogarty ...
Diseases, Conditions, Syndromes Mar 07, 2013 | not rated yet | 0
(HealthDay)—The start of allergy season is overlapping with the cold and flu season in some parts of the United States, leading some people to wonder which ailment they have, an expert says.
Immunology Mar 03, 2013 | not rated yet | 0
Even in the face of a disaster, we remain optimistic about our chances of injury compared to others, according to a new study. Residents of a town struck by a tornado thought their risk of injury from a future tornado was ...
Psychology & Psychiatry Mar 01, 2013 | 1 / 5 (1) | 0 |
Every one degree fall in outside air temperature during the winter corresponds to a drop in ambulance response time of more than 1 per cent, reveals research published online in Emergency Medicine Journal.
Health Feb 27, 2013 | not rated yet | 0
(Medical Xpress)—At first, Marc Laderriere thought that his decreasing energy was just age catching up to him—he was about to be 50. But something about that explanation didn't sit right.
Neuroscience Feb 11, 2013 | 5 / 5 (2) | 0
Shootings and other traumatic events involving children are not rare events, but there's a startling lack of scientific evidence on the best ways to help young survivors and witnesses heal, a government-funded ...
Psychology & Psychiatry Feb 11, 2013 | 5 / 5 (1) | 0
(HealthDay)—As extreme cold blankets many parts of the United States, one expert warns that frigid temperatures can put people at greater risk not only for hypothermia and frostbite, but also for stroke, ...
Health Jan 24, 2013 | not rated yet | 0
Weather is a set of all the phenomena occurring in a given atmosphere at a given time. Weather phenomena lie in the troposphere. Weather refers, generally, to day-to-day temperature and precipitation activity, whereas climate is the term for the average atmospheric conditions over longer periods of time. When used without qualification, "weather" is understood to be the weather of Earth.
Weather occurs due to density (temperature and moisture) differences between one place and another. These differences can occur due to the sun angle at any particular spot, which varies by latitude from the tropics. The strong temperature contrast between polar and tropical air gives rise to the jet stream. Weather systems in the mid-latitudes, such as extratropical cyclones, are caused by instabilities of the jet stream flow. Because the Earth's axis is tilted relative to its orbital plane, sunlight is incident at different angles at different times of the year. On Earth's surface, temperatures usually range ±40 °C (100 °F to −40 °F) annually. Over thousands to hundreds of thousands of years, changes in Earth's orbit affect the amount and distribution of solar energy received by the Earth and influence long-term climate
Surface temperature differences in turn cause pressure differences. Higher altitudes are cooler than lower altitudes due to differences in compressional heating. Weather forecasting is the application of science and technology to predict the state of the atmosphere for a future time and a given location. The atmosphere is a chaotic system, so small changes to one part of the system can grow to have large effects on the system as a whole. Human attempts to control the weather have occurred throughout human history, and there is evidence that human activity such as agriculture and industry has inadvertently modified weather patterns.
Studying how the weather works on other planets has been helpful in understanding how weather works on Earth. A famous landmark in the Solar System, Jupiter's Great Red Spot, is an anticyclonic storm known to have existed for at least 300 years. However, weather is not limited to planetary bodies. A star's corona is constantly being lost to space, creating what is essentially a very thin atmosphere throughout the Solar System. The movement of mass ejected from the Sun is known as the solar wind.
For more information about Weather, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.