Dust and Death: Evidence from the West African HarmattanUsing two decades of data from twelve low-income countries in West Africa, we show that dust carried by harmattan trade winds increases infant and child mortaliAdhvaryu, AchyutaBharadwaj, PrashantFenske, JamesNyshadham, AnantStanley, Richard...
Desert winds known as the harmattan set records, blowing at more than 70 kilometers per hour across northwest Africa. FromScience Magazine Farmers said more rainfall mixed with sunny spells was needed before the arrival of December’s dry harmattan winds for next year’s harvest to develop well...
EACH year, from December to March, an area of a million square miles or so in West Africa is periodically subjected to a very dry dust-laden atmosphere (the Harmattan), which rises in the Sahara desert and is carried south by winds from that area. The dust particles are thought to ...
In West Africa, Harmattan-induced atmospheric and soil droughts represent seasonally recurring hazards for Theobroma cacao L. agro-ecosystems. Under the influence of the Harmattan winds, precipitation is impaired and air humidity and temperature reach stressful levels. Climate change is causing an ...
During December and January, dry northeasterly surface winds (the Harmattan) distribute dust over West Africa. Rate of deposition and some chemical and physical characteristics of Harmattan dust were measured in Tai National Park in the southwest comer of Cote d'Ivoire during the 1990--1991 dry ...
West Africa[1] The Harmattan is a dry dust-laden continental wind, and in the boreal winter Harmattan dust plumes affects many West African countries, including Ghana. When the Harmattan is strongest the southern part of Ghana is affected by the Inter Tropical Discontinuity (ITD). In this ...
Harmattan is a dust-laden north-easterly wind that blows from the Sahara towards the Gulf of Guinea in the period November to March. It is the dominant wind in the north of Ghana while at the coast in the south it only occurs sporadically and here westerly or south-westerly winds ...
The harmattan’s arrival may cause air temperatures in parts of western Africa to fall to 9 °C (48.2 °F). In the summer it is undercut by the cooler winds of the southwest monsoon, blowing in from the ocean and forcing the harmattan to rise to an altitude of about 900 to 1,800 ...