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Encyclopedia > Extreme weather
Trends in natural disasters, Pascal Peduzzi (2004) "Is climate change increasing the frequency of hazardous events?" Environment Times UNEP/GRID-Arendal
Trends in natural disasters, Pascal Peduzzi (2004) "Is climate change increasing the frequency of hazardous events?" Environment Times UNEP/GRID-Arendal
See also: List of extreme weather events

Extreme weather includes weather phenomena that are at the extremes of the historical distribution, especially severe or unseasonal weather.[1] Image File history File links Size of this preview: 645 × 600 pixel Image in higher resolution (1100 × 1023 pixel, file size: 275 KB, MIME type: image/jpeg) Pascal Peduzzi (2004) Is climate change increasing the frequency of hazardous events? Environment Times, www. ... Image File history File links Size of this preview: 645 × 600 pixel Image in higher resolution (1100 × 1023 pixel, file size: 275 KB, MIME type: image/jpeg) Pascal Peduzzi (2004) Is climate change increasing the frequency of hazardous events? Environment Times, www. ... // A huge storm system, the February-March 2007 tornado outbreak, produced at least 31 tornadoes from Minnesota to the Gulf of Mexico, killing 10 in Alabama, 9 in Georgia and 1 in Missouri. ... For the geological process, see Weathering or Erosion. ... NOAA scientists observe severe weather using a mobile doppler radar and a helicopter (in the distance) Severe weather phenomena are weather conditions that are hazardous. ...

Contents

Related to significant tropical cyclones

Increasing dramatic weather catastrophes are due to an increase in the number of severe events and an increase in population densities, which increase the number of people affected and damage caused by an event of given severity. The World Meteorological Organization[2] and the U.S. Environmental Protection Agency[3] have linked increasing extreme weather events to global warming, as have Hoyos et al. (2006), writing that the increasing number of category 4 and 5 hurricanes is directly linked to increasing temperatures.[4] Similarly, Kerry Emmanuel in Nature writes that hurricane power dissipation is highly correlated with temperature, reflecting global warming. Hurricane modeling has produced similar results, finding that hurricanes, simulated under warmer, high CO2 conditions, are more intense than under present-day conditions. Thomas Knutson and Robert E. Tuleya of the NOAA stated in 2004 that warming induced by greenhouse gas may lead to increasing occurrence of highly destructive category-5 storms.[5] Vecchi and Soden find that wind shear, the increase of which acts to inhibit tropical cyclones, also changes in model-projections of global warming. There are projected increases of wind shear in the tropical Atlantic and East Pacific associated with the deceleration of the Walker circulation, as well as decreases of wind shear in the western and central Pacific[1]. The study does not make claims about the net effect on Atlantic and East Pacific hurricanes of the warming and moistening atmospheres, and the model-projected increases in Atlantic wind shear. [6] WMO flag The World Meteorological Organization (WMO, French: , OMM) is an intergovernmental organization with a membership of 188 Member States and Territories. ... The mission of the United States Environmental Protection Agency (EPA) is to protect human health and to safeguard the natural environment: air, water, and land. ... Global warming refers to the increase in the average temperature of the Earths near-surface air and oceans in recent decades and its projected continuation. ... Global warming refers to the increase in the average temperature of the Earths near-surface air and oceans in recent decades and its projected continuation. ... Thomas Knutson is a climate modeller at the US Geophysical Fluid Dynamics Laboratory, a division of the National Oceanic and Atmospheric Administration (NOAA). ... The National Oceanic and Atmospheric Administration (NOAA) is a scientific agency of the United States Department of Commerce focused on the conditions of the oceans and the atmosphere. ... Top: Increasing atmospheric levels as measured in the atmosphere and ice cores. ... For the Marvel Comics character, see Windshear (comics). ... This article is about weather phenomena. ... For the Marvel Comics character, see Windshear (comics). ... The Walker circulation is an atmospheric circulation of air at the equatorial Pacific Ocean, responsible for creating ocean upwelling off the coasts of Peru and Ecuador. ...


See also

Variations in CO2, temperature and dust from the Vostok ice core over the last 450,000 years For current global climate change, see Global warming. ... Figure 1 This is a diagram of the seasons. ... Global warming refers to the increase in the average temperature of the Earths near-surface air and oceans in recent decades and its projected continuation. ... A disaster is a natural or man-made event that negatively affects life, property, livelihood or industry, often resulting in permanent changes to human societies, ecosystems and environment. ... // A huge storm system, the February-March 2007 tornado outbreak, produced at least 31 tornadoes from Minnesota to the Gulf of Mexico, killing 10 in Alabama, 9 in Georgia and 1 in Missouri. ... // Tornado Events These are some notable tornadoes, tornado outbreaks, and tornado outbreak sequences that have occurred around the globe. ... For other uses, see Storm (disambiguation). ... The following table lists the highest and lowest temperatures recorded in each state in the United States, in both Fahrenheit and Celsius. ... Select (US) annual weather-related deaths This table represents a 6 year period and only a select type of recorded weather events. ... The Draupner wave, a single giant wave measured on New Years Day 1995, finally confirmed the existence of freak waves, which had previously been considered near-mythical Rogue waves, also known as freak waves, or extreme waves, are relatively large and spontaneous ocean surface waves which are a threat...

References

  1. ^ Intergovernmental Panel on Climate Change. [http://www.grida.no/climate/ipcc_tar/wg1/088.htm 2.7 Has Climate Variability, or have Climate Extremes, Changed?] Retrieved on 2007-04-13.
  2. ^ Commondreams.org News Center. Extreme Weather Prompts Unprecedented Global Warming Alert. Retrieved on 2007-04-13.
  3. ^ U. S. Environmental Protection Agency. Global Warming. Retrieved on 2007-04-13.
  4. ^ Carlos D. Hoyos, Paula A. Agudelo, Peter J. Webster, Judith A. Curry. Deconvolution of the Factors Contributing to the Increase in Global Hurricane Intensity. Retrieved on 2007-04-13.
  5. ^ Thomas R. Knutson, et al., Journal of Climate, Impact of CO2-Induced Warming on Simulated Hurricane Intensity and Precipitation: Sensitivity to the Choice of Climate Model and Convective Parameterization, 15 Sept. 2004. Retrieved March 4, 2007.
  6. ^ Vecchi, Gabriel A.; Brian J. Soden (2007-04-18). "Increased tropical Atlantic wind shear in model projections of global warming" (PDF). Geophysical Research Letters 34 (L08702): 1-5. doi:10.1029/2006GL028905. Retrieved on 2007-04-21. 

Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 103rd day of the year (104th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 103rd day of the year (104th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 103rd day of the year (104th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 103rd day of the year (104th in leap years) in the Gregorian calendar. ... Journal of Climate is a publication of the American Meteorological Society. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 108th day of the year (109th in leap years) in the Gregorian calendar. ... Geophysical Research Letters is one of the scientific magazines dedicated to specialized aspects of geophysics, geology, climate science, and related disciplines. ... A digital object identifier (or DOI) is a standard for persistently identifying a piece of intellectual property on a digital network and associating it with related data, the metadata, in a structured extensible way. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 111th day of the year (112th in leap years) in the Gregorian calendar. ...

External links


  Results from FactBites:
 
Extreme weather - Wikipedia, the free encyclopedia (3231 words)
Extreme weather includes weather phenomena that are at the extremes of historical patterns, especially severe or unseasonal weather.
Increasing dramatic weather catastrophes are due to an increase in the number of severe events and an increase in population densities which increase the number of people affected and damage caused by an event of given severity.
Cold weather that began in December spread throughout Bangladesh and northern India, leading to the first freeze in New Delhi in 70 years and killing at least 180 people throughout the region.
Extreme Weather (609 words)
A climate extreme then, is a significant departure from the normal state of the climate, irrespective of its actual impact on life or any other aspect of the Earth's ecology.
Extreme weather events include droughts, floods and associated landslides, storms, cyclones and tornadoes, ocean and coastal surges, heat waves and cold snaps.
In addition, given the large natural variability in climate and the general rarity of climatic extremes it is hard to determine whether they are now occurring as a result of global warming.
  More results at FactBites »


 

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