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Tropical Storm 02W (Chan-Hom) Expected to Make Landfall

May 6th, 2009 Category: Tropical Cyclones

Tropical Storm 02W - May 5th, 2009

Tropical Storm 02W - May 5th, 2009

TS 02W - enhanced image

TS 02W - enhanced image

Track of TS 02W © Univ. of Wisconsin

Track of TS 02W

Tropical Storm 02W (Chan-Hom), located approximately 400 nautical miles west of Manila, Philippines, has tracked northeastward at 6 knots over the past six hours. Maximum significant wave height is 19 feet.

Animated water vapor imagery indicates the system has maintained its ragged symmetry over the past 12 hours.

Upper level analysis indicates TS 02W is tracking along the north-west periphery of a mid-level near-equatorial ridge to the Southeast.

The cyclone is also exhibiting good radial outflow as it tracks along an area of low vertical wind shear.
Chan-Hom is expected to slowly intensify and begin tracking on a more eastward direction towards northern Luzon over the next 24 to 48 hours.

After TAU 48, TS 02W will make landfall just north of the Gulf of Lingayen, cross into Luzon and dissipate just off the northeastern point.

An alternate scenario is for the system to turn north towards Taiwan around TAU 48, as suggested by a few guidance models, although this scenario is less likely at this time.

Climate Change and the Etosha Pan, Namibia

18.7S 16.4E

May 30th, 2013 Category: Climate Change, Salt Flats

Namibia – May 30th, 2013

Etosha National Park in northern Namibia, one of Africa’s major wildlife sanctuaries, is home to the critically endangered black rhinoceros. Climate change threatens biodiversity in the park and elsewhere in Africa, and a warmer, drier climate in Namibia could put tourism at risk.

Temperatures in Namibia have been rising at three times the global average rate for the twentieth century, and scientists expect the climate to continue to become hotter and drier—which could reduce the range and number of wildlife supported by Etosha. If we do nothing to reduce our heat-trapping emissions, Etosha faces a net loss of around eight species of mammals by 2050.

Great Lakes Region and Climate Change, USA and Canada

45.8N 85.8W

May 25th, 2013 Category: Climate Change, Lakes

USA – May 24th, 2013

The Great Lakes region of the United States and Canada is a land of striking glacial legacies: spectacular lakes, vast wetlands, fertile southern soils, and rugged northern terrain forested in spruce and fir. It is also home to 60 million people whose actions can profoundly affect the region’s ecological bounty and the life-sustaining benefits it provides.

Now that the world is entering a period of unusually rapid climate change, driven largely by human activities that release heat-trapping greenhouse gases into the atmosphere, the responsibility for  safeguarding our natural heritage is becoming urgent. Growing evidence suggests that the climate of the Great Lakes region is already changing: winters are getting shorter, annual average temperatures are growing warmer, and extreme heat events are occurring more frequently. The duration of lake ice cover is decreasing as air and water temperatures rise. Heavy precipitation events, both rain and snow, are becoming more common (click here for more information).

Lake Balaton’s Susceptibility to Climate Change

46.8N 17.7E

April 17th, 2013 Category: Climate Change, Lakes

Hungary – April 16th, 2013

Since 2002, agencies have been examining sustainability problems in Hungary’s Lake Balaton region, in order to contribute to a better understanding of the Lake Balaton ecological and socio-economic system’s vulnerability and resilience arising from multiple forces of global and local change, including land use, demographic, and economic and climate change.

Following many years of water quality problems, a negative water balance induced water shortage starting in 2000 and lasting for four years. This raised and continues to raise serious sustainability concerns in the Lake Balaton area, Hungary and the region (click here for more information).

Climate Change Affecting Wildlife in Etosha Pan, Namibia

18.7S 16.4E

April 4th, 2013 Category: Climate Change, Salt Flats

Namibia – April 3rd, 2013

Visible at the top center of this image is the Etosha Pan, in Namibia. Although it is one of the harshest and most barren areas on Earth, the Pan and the surrounding sweetveld savannah plains are home to more than 114 mammal and some 340 bird species.

This animal life is sustained only because of underground springs that form waterholes on the outskirts of the pan. These waterholes allow animals to fight off the dry and the heat as they migrate across Etosha, seeking refuge from temperatures that can reach as high as 120 degrees Fahrenheit.

Without a subterranean water table and the numerous places where it reaches the surface, little game would have been attracted to the region in the first place. There are indications, however, that the climate may be changing. 1995 was the 18th year of below average rainfall in Etosha. Large herbivores, as a result, have become more widely dispersed in search of grazing, and the predators alsoseem to be ignoring their previous range limits to widen their search for prey. Lion pride structure has become loose, with individuals traveling huge distances.

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