There is no 'Atlantic Desert.' Do you mean the Atacama Desert? The Atacama receives virtually no rainfall on average per year.
Please narrow your question down to a specific desert as each desert has different statistics. Few deserts have much rain in the spring, the driest season of the year.
There is no "Nimbi Desert.' Were you referring to the Namib Desert?
How much precipitation falls to the earth in a typical year
No, Yellowstone does not have a desert. It receives much too much precipitation each year to be classified as a desert.
1225 mm
Grassland
Each desert has different weather statistics. Please pick a specific desert area.
A desert is defined as a region that, on average, receives less than 10 inches (250 mm) of rain in a year.
A savanna is a semi-arid transition zone between a desert and another biome, such as a grassland. It receives more rain than a desert.
Antarctica receives little precipitation each year which classifies it as a desert.
1,000ton
Grasslands. Tropical grasslands are also known as savannas.