Navigation Links
Climate modelers see modern echo in '30s Dust Bowl
Date:4/30/2008

he change in sea-surface temperature. This showed a 5% drop in rainfall, centered over northern Mexico and the U.S. southwest, where little agriculture then took place. This would have affected the Great Plains too, but probably would have not brought disaster. Then the modelers added in the effects of dust, using data from the 30s that indicated dust sources, and allowing the computer to create dust storms. This yielded a simulated event eerily like the real one, with a full 10% drop in rainto just 18 inches a year--and centered over the prairie farm regions of north Texas, Oklahoma, Missouri, Kansas, Nebraska and Iowa.

Lead author Benjamin Cook, a National Oceanic and Atmospheric Administration postdoctoral researcher affiliated with both Lamont and Goddard, said the effect occurred because dust particles suspended in air reflect solar radiation. Studies by researchers in other parts of the world show that this causes a drop in temperatures at or near the soil surface, lessening evaporation of moisture into the air, and thus decreasing precipitation even further. Dust on the Great Plains helped draw the drought northward like a siphon, said Cook. This is what made the Dust Bowl the Dust Bowl, he said. It was a process that fed on itself.

The U.S. southwest is currently suffering a serious long-term drought that threatens agriculture and population growth there. Cook said it is unlikely that this by itself will cause another Dust Bowl in the United States. Among other things, the U.S. Natural Resources Conservation Service, founded in response to the 30s crisis, has shifted farmers into more sustainable practices. On the other hand, Cook points out that many scientists believe hard-pressed farmers and herders in China and Africas Sahel region may be repeating the experience, ruining marginal lands in order to feed themselves in the short term. This highlights the fact that humans can alter natural events and make them worse, said coautho
'/>"/>

Contact: Kevin Krajick
kkrajick@ei.columbia.edu
212-854-9729
The Earth Institute at Columbia University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Climate change goes underground
2. Opportunity for students displaced by Katrina to assess climate vulnerability of Southeast US
3. Climate -- no smoking gun for Neanderthals
4. NASA celebrates a decade observing climate impacts on health of worlds oceans
5. NASA celebrates a decade observing climate impacts on health of worlds oceans
6. University and state agencies to forecast local health effects of climate change
7. A greenhouse in order to study the impact of climate change on plants
8. European lead in reading past climates from ice cores
9. International team of scientists warns of climate changes impact on global river flow
10. Heaps of climate gas
11. Nobel Peace Prize 2007 to intergovernmental panel on climate change
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Climate modelers see modern echo in '30s Dust Bowl
(Date:9/18/2014)... 18, 2014 New research into the Crimean-Congo hemorrhagic ... severe hemorrhagic disease in humans similar to that caused ... CCHFV infection. This discovery has the potential to lead ... , The research, reported in a paper ... and conducted by scientists at the Texas Biomedical Research ...
(Date:9/18/2014)... International Space Station ever starts a "frequent flyers" program, ... Recently the orbiting laboratory has hosted increasing numbers of ... from the space station in April, and another is ... experiment is planned to launch in December. , Fruit ... the world-- and in space. Model organisms can reveal ...
(Date:9/18/2014)... language is unique to humans. "The genetic changes that ... evolution to make this possible are largely unknown, but ... says Wolfgang Enard, Professor of Anthropology and Human Biology ... biological basis of language Enard has now taken an ... undertaken in collaboration with scientists at several universities, including ...
Breaking Biology News(10 mins):Research milestone in CCHF virus could help identify new treatments 2Buzzing with activity: Fruit flies orbit Earth for science 2Buzzing with activity: Fruit flies orbit Earth for science 3Buzzing with activity: Fruit flies orbit Earth for science 4Language evolution: Quicker on the uptake 2Language evolution: Quicker on the uptake 3
... University of Texas Medical Branch at Galveston have identified women ... acetate, more commonly known as Depo-Provera or the birth control ... use DMPA will gain weight and will help physicians to ... 5 percent within the first six months of use, called ...
... research shows that training your brain may be just as ... injuries, and suggests a shift from performance-based to prevention-based athletic ... is one of the four major ligaments of the knee, ... well as an economic strain on the medical system. ...
... 2009 Scientists at Burnham Institute for Medical Research (Burnham) ... a major role in promoting programmed cell death (apoptosis), helps ... and invade surrounding tissues. The study was published in the ... team of scientists, led by Kristiina Vuori, M.D., Ph.D., professor ...
Cached Biology News:UTMB study identifies women at risk of gaining excessive weight with injectable birth control 2Knee injuries may start with strain on the brain, not the muscles 2Protein that promotes cancer cell growth identified 2
(Date:9/19/2014)... DIEGO , Sept. 19, 2014 Pfenex ... in the development of high-value and difficult to manufacture ... be presenting at the 21 st Annual NewsMakers ... York . Bertrand Liang , chief executive ... company,s development programs and business strategy on Friday, September ...
(Date:9/19/2014)... Barnhardt Manufacturing Company has ... Organic Cotton . The USDA Certified Biobased Product ... ingredients meets or exceeds levels set by USDA. Biobased ... or in significant part of agricultural, forestry, or marine ... cotton to be immediately identified as a USDA certified ...
(Date:9/19/2014)... -- Dublin ... the addition of the  "Micro Market Monitor : ...      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , , ,The ... segments in the chromatography market. The market was ... to reach $2.0 billion by 2019, at a ...
(Date:9/19/2014)... 2014 The new , Healthcare and ... available today on PharmaBoardroom.com for free download ... rocked the Spanish economy in 2009, and the austerity measures ... remained pragmatic in times of trouble. "Despite the ... biggest European market, and the general conditions to invest are ...
Breaking Biology Technology:Pfenex to Present at Upcoming Industry Conference on September 26 2Barnhardt Manufacturing Company Earns USDA Certified Biobased Product Certification and Label for Organic Cotton 2Micro Market Monitor : Global Pre-packed Chromatography Columns 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 3
... Wis. - Commercial air service doesn't always ... viewed as more fundamental to enterprise than ever ... potential customers to dismiss the expenses of putting ... of Internet video and mixed-media communication tools. , ...
... a visit to the University of Wisconsin-Madison campus, former ... his name is under attack from critics who don't understand the ... at the annual Kastenmeier Lecture at the UW-Madison Law School ... Bayh-Dole Act , which gave universities the right to patent ...
... back, we took a look at the results of the National ... time, we saw that the Midwest had two states in the top ... top 20 states. I promised to circle back with you to review ... Midwest fared in this ranking. , ,The NIH falls under the ...
Cached Biology Technology:IP video goes where air travel cannot 2IP video goes where air travel cannot 3Landmark patent law under attack, Bayh says 2Landmark patent law under attack, Bayh says 3Midwest colleges strong contenders for NIH funds 2Midwest colleges strong contenders for NIH funds 3Midwest colleges strong contenders for NIH funds 4Midwest colleges strong contenders for NIH funds 5
Purified anti-mouse Tim-1...
Request Info...
Request Info...
Anti-ADP-Ribosylation Factor 1, clone 3F1 Immunogen: Synthetic peptide corresponding to the C-terminal amino acid sequence of human ARF1. Available Date: 38495...
Biology Products: