Navigation Links
Columbia Engineering team makes major step in improving forecasts of weather extremes
Date:6/5/2011

New York June 5, 2011 Moisture and heat fluctuations from the land surface to the atmosphere form a critical nexus between surface hydrology and atmospheric processes, especially those relevant to rainfall. While current theory has suggested that soil moisture has had a positive impact on precipitation, there have been very few large-scale observations of this. A team of researchers from Columbia Engineering, Geophysical Fluid Dynamics Laboratory, and Rutgers University has now demonstrated that evaporation from the land surface is able to modify summertime rainfall east of the Mississippi and in the monsoonal region in the southern U.S. and Mexico. One of their main findings is that evaporation from the land is, however, only able to modify the frequency of summertime rainfall, not its quantity.

"This is a major shift in our understanding of the coupling between the land surface and the atmosphere, and fundamental for our understanding of the prolongation of hydrological extremes like floods and droughts," said Pierre Gentine, Assistant Professor of Applied Mathematics at The Fu Foundation School for Engineering and Applied Science at Columbia University, and co-author of the paper "Probability of Afternoon Precipitation in eastern United States and Mexico Enhanced by High Evaporation," published in the June 5th online edition of Nature Geoscience. The other co-authors are Kirsten Findell (Geophysical Fluid Dynamics Laboratory), Benjamin Lintner (Rutgers University), and Christopher Kerr (Geophysical Fluid Dynamics Laboratory).

The researchers used data from the National Centers for Environmental Prediction (NCEP) to quantify the impacts of continental evaporation on the frequency and intensity of summertime rainfall over North America. They discovered that higher evaporation increases the probability of afternoon rainfall east of the Mississippi and in Mexico, while it has no influence on rainfall over the Western U.S. The differ
'/>"/>

Contact: Holly Evarts
holly@engineering.columbia.edu
212-854-3206
Columbia University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Columbia engineers develop new method to diagnose heart arrhythmias
2. Columbia researchers find green roof is a cost-effective way to keep water out of sewers
3. Columbia engineers patch a heart
4. Columbia professor to discuss good, bad aspects of choice at NJIT March 23 talk
5. Columbia engineer observes surprising behavior of cells during blood-vessel formation
6. Columbia University uses technological innovation to study bone structure
7. Columbia University Medical Center announces 2010 Katz Prizes in cardiovascular research
8. Columbia engineer part of team to receive $6.2 million DOD grant for blast research
9. Columbia University Medical Center announces 2009 Katz Prizes in Cardiovascular Research
10. Columbia University scientist devises new way to more rapidly generate bone tissue
11. Salmon smolt survival similar in Columbia and Fraser rivers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/5/2014)... VIEW, Calif. , Dec. 4, 2014 /PRNewswire/ ... safety has boosted investments in new testing and ... has also given rise to a range of ... by the requirements of Generation Y, which is ... technologies. As a result, product development strategies of ...
(Date:12/4/2014)... 3, 2014  Crossmatch™, a leading provider of ... DigitalPersona ® Pro Enterprise software and U.are.U ... throughout First Bank branch locations in ... and Virginia. First Bank, a progressive community ... North Carolina , selected the Crossmatch biometrics-based ...
(Date:12/3/2014)... , Dec. 2, 2014 As part of ... Inception Technologies is pleased to announce the release of ... customers to collect the workforce data that they need. ... have been left by existing readers. Many such devices ... connectivity and modern technology. Older models force users to ...
Breaking Biology News(10 mins):Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3Inception Technologies to Release New Biometric Reader 2
... Rochelle, May 14, 2012 Disruptive Science and Technology ... Mary Ann Liebert, Inc., publishers, has officially released ... PhD, Highmark Distinguished Career Professor, Carnegie Mellon University, ... thorough syntheses and analyses focused on front-line concepts ...
... MO, May 14, 2012Arranging DNA fragments into a genome sequence ... assembling a puzzle except you don,t have the box and ... Sometimes clues from other publicly-available DNA sequences of related organisms ... usefulness depends on how closely related any two sequences are ...
... affect the intensity of its taste? It depends on the ... and colleagues from Brock University in Canada. Their work shows ... an effect on the intensity of sour, bitter and astringent ... published online in Springer,s Chemosensory Perception journal. ...
Cached Biology News:New journal on disruptive science and technology launched by Mary Ann Liebert Inc. publishers 2Researchers look to relatives for clues in quest to develop sources of bioenergy 2Researchers look to relatives for clues in quest to develop sources of bioenergy 3To get the full flavor, you need the right temperature 2
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... Charm Sciences is pleased to announce that ... Aflatoxin M1 in raw commingled milk is the first ... The peer reviewed report of the validation by Technology ... and Fisheries Research (ILVO-T&V) has been published by the ... most toxic aflatoxin and a known carcinogen, can be ...
(Date:12/19/2014)... 2014 Naurex Inc., a biopharmaceutical company leveraging ... of the central nervous system, today announced that ... will present at the 33 rd annual J.P. ... at 3:00 p.m. PST on Tuesday, January 13, 2015, ... Francisco, Calif. About Naurex ...
(Date:12/19/2014)... Calif. , Dec. 19, 2014 Bina Technologies, ... USA) announced today that they have been acquired by ... is a privately held company that provides a ... next generation sequencing (NGS) data for the academic and ... Roche Sequencing Unit, and will continue to focus on ...
Breaking Biology Technology:Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... Z. Yang, Varian, Inc. , ... Chloramphenicol (CAP) is a potent, broad-spectrum antibiotic and ... of serious infections. Its use in meatproducing animals, food producing insects, ... Canada and the European Union. However, the illegal use of CAP ...
... Introduction , ... signaling processes leading to programmed cell death (apoptosis) is of utmost ... or Parkinsons and Alzheimers disease. Here, errors in the signaling cascade ... At the same time, damaged cells that do not enter the ...
... Tran T. Nham Varian Australia Pty Ltd Mulgrave, Victoria, ... , Because of the low detection ... it has been widely used to determine trace and ultratrace levels in ... the ability of the ultrasonic nebulizer to handle samples with significant amounts ...
Cached Biology Technology:Analysis Of Chloramphenicol by Negative Ion Electrospray LC/MS/MS 2Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 2Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 3Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 4Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 5Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 2Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 3Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 4
... is a two color staining method for ... to detect apoptotic cells by flow cytometry. ... required for measuring apoptosis in cells including: ... reagent performance; washing, reaction and rinsing buffers ...
... GT and PowerPac 3000 system, 220-240 V, is ... x 50 cm vertical slab gel format. The ... which is capable of separating nucleic acids with ... chamber (IPC) assembly (IPC and bonded inner glass ...
... PROTEAN Plus overlay agarose is ... to secure IPG strips in place ... tracking dye is incorporated to allow ... is composed of 0.75% agarose in ...
... PowerPac HV high-voltage power supply, with temperature probe, ... of 5,000 V, 500 mA, and 400 W. ... temperature between 0 and 90 degrees C during ... transfer. Power cord and instructions are provided. Dimensions ...
Biology Products: