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Results 1 - 10 from 52 for tropical disturbances in 0.285 sec.

Hurricanes--Forces of Nature--Science, Maps, Photos, Video (National Geographic)
Conditions have to be just right for a hurricane to form. About a hundred tropical disturbances develop every year, but less than 10 percent lead to anything but thunderstorms. Most ... trade winds of the Northern and Southern Hemispheres meet and cause tropical disturbances. Disturbances take energy from the warm waters to grow into tropical depressions. These are marked by an organized system of ...
nationalgeographic.com

NOAA Home Page - NOAA Backgrounders
Forecast Severe Storms — The NOAA National Hurricane Center's mission is to track tropical cyclones and predict their future position and intensity over the north Atlantic Ocean, Caribbean ... and some go into weather history. The NOAA National Hurricane Center near Miami, Florida, monitors tropical disturbances in the Atlantic and eastern Pacific Oceans, which could become a hurricane. (PDF) Ocean ...
www.publicaffairs.noaa.gov

CPC - Climate Weather Linkage: Atmospheric Blocking
The normal eastward progression of synoptic disturbances is obstructed leading to episodes of prolonged extreme weather conditions. On intraseasonal time scales ... , R. W., and K. C. Mo, 1997: Persistent North Pacific circulation anomalies and the tropical intraseasonal oscillation. J. Climate, 10, 223-244. [Back to the Top] NOAA/ National ...
www.cpc.ncep.noaa.gov

Equity Watch - Global Environmental Government Unit - Centre for Science and Environment (CSE)
Additionally, if not implemented properly, such activities may threaten biodiversity, pollute groundwater and disrupt ... is a lot cheaper to undertake such activities in tropical countries (us $0.1 for each tonne of carbon) as against non-tropical countries where the cost could be as high ...
www.cseindia.org

Appalachian Mountains chapter for Conservation International book on Wilderness
(Whittaker 1956), but soils and history, including disturbances and pathogens, have also shaped their composition. In southern elevations below 1,500 m ... generally more resilient to large scale disturbance than biota elsewhere. In particular, island and tropical species that have not evolved under continental-scale disturbance regimes, such as caused ...
www.discoverlife.org

March 2, 2004: The Sixth Great Extinction
Ecologically rich wetlands have been cut in ... becoming more susceptible to the effects of climate change, invasions of alien species, and other disturbances. The 1992 Convention on Biological Diversity provides a framework for countries to conserve biological ...
www.earth-policy.org

The Regional Impacts of Climate Change
Sahara, have tropical climates. These tropical climates may be divided into three distinct climatic zones: wet tropical climates, dry tropical climates, and alternating wet and dry ... poleward extremes of the continent have extratropical influences associated with mid-latitude synoptic disturbances, resulting in significant winter rainfall (Griffiths, 1972). Figure 2-2: Observed annual ...
www.grida.no

The Regional Impacts of Climate Change
Hydrology models for tropical savanna Africa suggest reduced runoff as a result of climate change (Hulme, 1996a). The tourist ... tourism in these areas (Okoth-Ogendo and Ojwang, 1995). This effect could be exacerbated by disturbances in the pattern of human settlements in coastal zones and the general loss of environmental ...
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Preliminary study of the behavior and ecology of Jackson's chameleons of Maui, Hawaii
Chameleons on the ground at other times are less common, but can be due to disturbances or other factors. Marshall Loope (pers. comm.) once observed a chameleon on the ground in ... 363-366. Lin, J.-Y. & C.E. Nelson. 1981. Comparative reproductive biology of two sympatric tropical lizards Chamaeleo jacksonii Boulenger and Chamaeleo hohnelii Steindachner (Sauria: Chamaeleonidae). Amphibia-Reptilia 1(3/ ...
www.hear.org

Iguana Specialist Group (formerly the West Indian Iguana Specialist Group)
Action Plan Contents Chapter One: Conservation Strategy Introduction Taxonomic Considerations Biogeographic Considerations Socioeconomic Perspective Tropical Dry Forest Ecosys. W.I. Iguana Habitat W.I. Iguana Populations Overview-Current Threats ... still exist over a wide area, they are subject to a variety of human disturbances, with the Turks and Caicos iguana reduced to 10% of its former range. The ...
www.iucn-isg.org