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Climate in MADAGASCAR


The following is excerped from the Country Studies--Area Handbook program of the U.S. Department of the Army. The original version of this text is available at the Library of Congress.
Full index of Country Studies-Madagascar


Madagascar

Climate

The climate is dominated by the southeastern trade winds that originate in the Indian Ocean anticyclone, a center of high atmospheric pressure that seasonally changes its position over the ocean. Madagascar has two seasons: a hot, rainy season from November to April; and a cooler, dry season from May to October. There is, however, great variation in climate owing to elevation and position relative to dominant winds. The east coast has a subequatorial climate and, being most directly exposed to the trade winds, has the heaviest rainfall, averaging as much as 3.5 meters annually. This region is notorious not only for a hot, humid climate in which tropical fevers are endemic but also for the destructive cyclones that occur during the rainy season, coming in principally from the direction of the Mascarene Islands. Because rain clouds discharge much of their moisture east of the highest elevations on the island, the central highlands are appreciably drier and, owing to the altitude, also cooler. Thunderstorms are common during the rainy season in the central highlands, and lightning is a serious hazard.

Antananarivo receives practically all of its average annual 1.4 meters of rainfall between November and April. The dry season is pleasant and sunny, although somewhat chilly, especially in the mornings. Although frosts are rare in Antananarivo, they are common at higher elevations. During this time, the blue skies of the central highlands around Antananarivo are considered by many to be among the clearest and most beautiful in the world.

The west coast is drier than either the east coast or the central highlands because the trade winds lose their humidity by the time they reach this region. The southwest and the extreme south are semidesert; as little as one-third of a meter of rain falls annually at Toliara. Overall, surface water is most abundant along the east coast and in the far north (with the exception of the area around Cap d'Ambre, which has relatively little surface water). Amounts diminish to the west and south, and the driest regions are in the extreme south.

Madagascar suffers the impact of cyclones from time to time. From February 2-4, 1994, Madagascar was struck by Cyclone Geralda, the worst cyclone to come ashore on the island since 1927. The cyclone killed seventy people and destroyed enough property to leave approximately 500,000 homeless, including 30,000 in Antananarivo and 80,000 in Toamasina. The cyclone also significantly damaged the country's infrastructure, most notably coastal roads, railroads, and telecommunications, as well as agriculture. Damage has been estimated at US$45 million, and the World Bank's (see Glossary) International Development Association and various European organizations are engaged in financing the reconstruction. The Madagascar government will contribute US$6 million toward the infrastructure rehabilitation.

Data as of August 1994

This is excerped from the Country Studies--Area Handbook program of the U.S. Department of the Army. The original version of this text is available at the Library of Congress.
Full index of Country Studies-Madagascar



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Beautifully illustrated with full color photographs throughout, Madagascar Wildlife is a celebration of the unique fauna of a remarkable island and the perfect accompaniment to Bradt's popular general travel guide, Madagascar.


RECENT NEWS

Mining and biodiversity offsets in Madagascar

(08/30/2009) Rio Tinto's ilmenite mine in southeastern Madagascar is among the largest on the planet. At peak capacity, its owners say, it could produce as much as 2 million tons of the stuff—worth roughly $100 a ton—each year, to be shipped off and smelted abroad. What's left of it after refining—some 60 percent of the ore that arrives from Madagascar—will be sold for $2000 a ton as titanium dioxide, a pigment used in everything from white paint and tennis court lines to sunscreen and toothpaste.


Destruction worsens in Madagascar

(08/20/2009) Armed bands are decimating rainforest reserves in northeastern Madagascar, killing lemurs and intimidating conservation workers, despite widespread condemnation by international environmental groups.


Appalling photos reveal lemur carnage in Madagascar

(08/20/2009) New pictures released by Conservation International depict a troubling development in Madagascar: the emergence of a commercial bushmeat market for lemurs. In the aftermath of a March coup that saw Madagascar's president replaced at gunpoint by the capital city's mayor, Madagascar's reserves — especially in the northern part of the country — were ravaged by illegal loggers. Armed bands, financed by foreign timber traders, went into Marojejy and Masoala national parks, harvesting valuable hardwoods including rosewood and ebonies. Without support from the central government — or international agencies that pulled aid following the coup — there was no one to stop the carnage. But now it emerges that timber wasn't the only target.


Saving the tsingy forests in Madagascar

(08/17/2009) After the success of their Sahafina Forest project, Biodiversity Conservation Madagascar is now branching out to the tsingy forest of Beanka, a project set to launch in October this year. Biodiversity Conservation Madagascar (BCM) has been granted a 25-year lease on a 14,000-hectare area of dry hardwood forest, the Beanka tsingy, situated 75 km east of Maintirano in western Madagascar. 'Tsingy' are spectacular razor-sharp limestone pinnacles found on the west and north of the island, formed by acidic rain erosion. The deciduous forests that inhabit them are characterized by high plant and animal endemism. The Malagasy organization plans to apply the same principles here – protection of the forest, socio-economic development and forest restoration – that brought them success with their last project, the 2,500-hectare forest block of Sahafina on Madagascar’s east coast.


Lessons from the crisis in Madagascar, an interview with Erik Patel

(08/11/2009) On March 17th of this year the President of Madagascar, Marc Ravalomanana, resigned his post. This made way for Andry Rajoelina, mayor of Madagascar's capital, to install himself as president with help from the military. The unrest and confusion that usually accompanies such a coup brought disaster on many of Madagascar's biological treasures. Within days of Ravalomanana's resignation, armed gangs, allegedly funded by Chinese traders, entered two of Madagascar's world-renowned national parks, Marojejy and Masoala parks, and began to log rosewood, ebonies, and other valuable hardwoods. The pillaging lasted months but the situation began to calm down over the summer. Now that the crisis in Madagascar has abated—at least for the time being—it's time to take stock. In order to do so, Mongabay spoke to Erik Patel, an expert on the Critically Endangered Silky Sifaka and frequent visitor to Madagascar, to find out what the damage looks like firsthand and to see what lessons might be learned.


Despite violent protests and coup, Daewoo continues to hold cropland in Madagascar

(06/19/2009) Despite violent protests that have left more than 100 dead and led to the ouster of a democratically-elected president, Daewoo Logistics Corp. continues to hold 218,000 hectares of cropland in Madagascar, according to a new campaign by Rainforest Rescue.


Conservation success in Madagascar proves illusory in crisis

(06/12/2009) Despite the popularity he enjoyed abroad, domestic support for ousted president Marc Ravalomanana eroded rather quickly last February when he went head to head with Andry Rajoelina, the rookie mayor of Madagascar's capital. Rajoelina rallied disparate opposition groups to the cause and soon toppled the incumbent to become, at his own proclamation, President of the "High Authority of Transition." For the country as a whole, the results have not been encouraging. The tourism industry has shriveled to a shadow of itself, important donors have suspended non-humanitarian aid, and a power vacuum has set in in remote regions of the island, wreaking havoc on some of its most fragile and prized ecosystems.


Forest Recovery Programs in Madagascar

(06/01/2009) Despite being one of the last habitable land masses on earth to be settled by man, Madagascar has lost more of its forests than most countries; less than 10% of its original forest cover now remains, and much of that is degraded. Political turmoil that erupted earlier this year continues to rumble on and the ensuing lawlessness has created the opportunity for illegal logging syndicates to plunder national parks, most notably Marojejy and Masoala, for valuable hardwoods and wildlife.


Approximately 200 new frogs discovered in Madagascar threatened by political instability

(05/11/2009) Amid the amphibian extinction crisis—where amphibians worldwide are disappearing due to habitat loss, pollution, and a devastating fungal epidemic—the Spanish Scientific Research Council (CSIC) has announced some good news. In a survey of the island-nation of Madagascar they have identified between 129 and 221 new species of frogs. The discovery of so many new species nearly doubles the island's total number of frogs.

More news


This portable guide offers a full survey of all Madagascar's mammals, both endemic and introduced, including many newly identified species. With vivid color photographs, line illustrations, and maps, Mammals of Madagascar: A Complete Guide is an essential book for any visitor.


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