Sahara Dunes Meet the Atlantic Shallows
Banc d'Arguin, Mauritania
Sahara Dunes Meet the Atlantic Shallows is an original illustration set in Banc d'Arguin, Mauritania. It lies in the tropics, where the climate is hot desert — evaporation far outruns rainfall.
Pale apricot dunes descend without a strip of vegetation to a narrow beach and a broad turquoise bay. Curving sandbanks divide the shallows into pale green flats and deeper tidal channels. Pink flamingos wade beside resting white pelicans, while a small triangular sail rises offshore. A low bank of fog lies over the darker ocean beyond the sunlit coast.
Why does the Sahara end in shallow, bird-filled water with almost no rain?
The Sahara reaches the Atlantic here because proximity to the sea does not guarantee rain. Subtropical descending air suppresses rainfall, while cool water associated with the Canary Current and coastal upwelling stabilizes the air near the surface; moisture can condense as low fog without developing into rain clouds. Inside the sheltered bay, shallow tidal flats and seagrass beds support rich food webs that feed large numbers of migratory birds. Bare dunes beside productive, bird-filled shallows distinguish Banc d'Arguin from the inland desert.
Terpano is a free daily geography puzzle. You study one original illustration, place a pin on a borderless terrain map, and see how close you were. There is no account and no sign-up; progress stays in your own browser. It plays in 11 languages.
Part of Ice, tide, river and salt — Water leaves marks at a scale you can measure by eye.
Play this puzzle Play today's puzzleMore puzzles in a similar climate
Draa Valley, MoroccoDraa Valley, Morocco
Sunken Courtyard DwellingsSouthern Tunisia
Mushroom Rock PlainWestern Desert, Egypt
Three Pyramids on a Desert PlateauGiza Pyramids, Egypt
English · Deutsch · Español · Français · Italiano · Português · Русский · 简体中文 · 繁體中文 · 日本語 · 한국어
