Midwestern United States Source:
Three million people left their farms on the Great Plains during the drought and half a million migrated to other states, almost all to the West.
But the Dust Bowl drought was not meteorologically extreme by the standards of the Nineteenth and Twentieth Centuries. Indeed the drought may have involved a more severe drop in precipitation. It was the combination of drought and poor land use practice that created the environmental disaster.
Dust storm approaching Elkhart, Kansas, May Much of the Plains had been plowed up in the decades before the s as wheat cropping expanded west.
Alas, while natural prairie grasses can survive a drought the wheat that was planted could not and, when the precipitation fell, it shriveled and died exposing bare earth to the winds.
This was the ultimate cause of the wind erosion and terrible dust storms that hit the Plains in the s. There had never been dust storms like these in prior droughts. In the worst years of the s on as many as a quarter of the days dust reduced visibility to less than a mile.
More soil was lost by wind erosion than the Mississippi carried to the sea. For wonderful books on the topic see WorsterDust Bowl: But did the dust storms have a meteorological impact?
There are two good reasons to ask this question. First we know from studies elsewhere in the world e. See our page "Was the Dust Bowl Predictable? Goodwell, Oklahoma, June 4, We have addressed this using the Goddard Institute for Space Studies atmosphere GCM which contains a dust module that can lift up dust from the surface, transport it in the atmosphere and allow it to interact with solar and longwave radiation transfer in the atmosphere.
First we ran a small ensemble of simulations with the atmosphere model forced by s sea surface temperatures SSTs to act as our base of comparison for the simulated s.
Next we created a small ensemble of simulations with the model forced by s SSTs. This created a drought that, as is typical for models forced by s SSTs, was centered too far into the Southwest relative to the observed drought.
Then we introduced an estimate of the increased dust source from crop failure in the s. This was guided by maps of wind erosion prepared in the s by the newly created Soil Conservation Service.
The modeled dust emissions are around half the size of the scanty estimates from s observations so the modeled climate impact may still be on the conservative side. Here we have used the anomalies for each year in the observations and each year in the model run and for each of the 5 ensemble members.
The boxes contain the one standard deviation spread of the anomalies and the whiskers bound the entire distribution. The distribution for the s is of course spread around zero.A: The Dust Bowl was the name of the Great Plains region of the United States during the Great Depression.
The region went through a harsh drought that turned The region went through a harsh drought that turned. Another option would be to rename/move the article, to "Dust Bowl (s North America)", or something like that.
It is enough to try to cover these events, not . The Dust Bowl of the s was an environmental crisis of epic proportions characterized by unprecedented soil erosion, population redistribution, and profound transformation of the landscape in the Great Plains region of the United States.
The Dust Bowl period that occurred during the drought years of the s represents a remarkable era in the settlement history of the West. From a climatic perspective, the s drought is still considered to be the most severe on .
THE DUST BOWL chronicles the worst man-made ecological disaster in American history, in which the frenzied wheat boom of the ‘Great Plow-Up,’ followed by a decade-long drought during the s. UPS workers in California stop armed robbery Delivering street justice!
Woody Guthrie wrote three songs about the event in the s. He said that his father, Charles, became a member of the Ku Klux Klan as it revived beginning in ) Three significant fires occurred during Guthrie's early life, one that caused the loss of his family's home in Okemah.