For example, the amounts of wildfire smoke from Alaskan boreal forests and desert dust from the
Bodele Depression vary dramatically over time, but the particle properties at each of these sources remain relatively constant, because they arise from the same material, via the same physical mechanisms.
Bodele AK, Parate SN, Wadadekar AA, Bobhate SK, Munshi MM.
Peculiarly, over half of this dust comes from just one place; the
Bodele Valley.
By using pairs of high-resolution optical satellite images taken at differing times, the authors monitored dune migration in the Bodele depression of northern Chad over time intervals of 1 month to 6.
From this, pixel-by-pixel estimates of sand flux were generated, allowing the authors to confirm that the Bodele contains some of the world's fastest moving dunes.
The
Bodele Valley in northwestern Chad provides the rainforest with 56 per cent of the mineral dust needed to keep the soil fertile.
The images indicate that more than half of that dust originates from the
Bodele depression, a now-dry basin on the southern edge of the Sahara that in wetter times held a body of water the size of Lake Erie.
Although seasonal and thus campaign-related differences in the pattern distribution of frequent DSA are apparent, dust sources located in the Adrar-Hoggar-Air mountain region as well as the
Bodele Depression region were predominantly active throughout all three campaigns.
Warren is travelling with a team of senior researchers to the
Bodele depression in northern Chad to measure and model the production and transport of atmospheric dust.
One of the most prolific spawning grounds for dust today is the
Bodele depression, a low-lying area that was once part of Lake Chad.
Andreae, 2010: Transport of North African dust from the
Bodele depression to the Amazon Basin: A case study.
In winter, the
Bodele depression (around 17[degrees]N, 19[degrees]E) is more dominant, and downwind of this feature cooking hours in January are reduced (Fig.
