Navigation Links
Dust to gust

More than half of the dust needed for fertilizing the Brazilian rainforest is supplied by a valley in northern Chad, according to an international research team headed by Dr. Ilan Koren of the Institute's Environmental Sciences and Energy Research Department. In a study published recently in Environmental Research Letters, the scientists have explained how the Bodélé valley's unique features might be responsible for making it such a major dust provider.

It has been known for more than a decade that the existence of the Amazon rainforest depends on a supply of minerals washed off by rain from the soil in the Sahara and blown across the Atlantic by dust. By combining various types of satellite data, Dr. Koren and colleagues from Israel, the United Kingdom, the United States, and Brazil have now for the first time managed to obtain quantitative information about the weight of this dust. Analyses of dust quantities were performed near the Bodélé valley itself, on the shore of the Atlantic and at an additional spot above the ocean.

The data revealed that some 56 percent of the dust reaching the Amazon forest originates in the Bodélé valley. They also showed that a total of some 50 million tons of dust make their way from Africa to the Amazon region every year, a much higher figure than the previous estimates of 13 million tons. The new estimate matches the calculations on the quantity of dust needed to supply the vital minerals for the continued existence of the Amazon rainforest.

The researchers suggest that the Bodélé valley is such an important source of dust due to its shape and geographic features: it is flanked on both sides by enormous basalt mountain ridges, which create a cone-shaped crater with a narrow opening in the northeast. Winds that "drain" into the valley focus on this funnel-like opening similarly to the way light is focused by an optical lens, creating a large wind tunnel of sorts. As a result, gusts of surface wind that are
'"/>

Source:American Committee for the Weizmann Institute of Science


Page: 1 2

Related biology news :

1. Newly-discovered class of genes determines ?and restricts ?stem cell fate
2. Inexpensive, mass-produced genes core of synthetic biology advances at UH
3. First atlas of key brain genes could speed research on cancer, neurological diseases
4. U-M scientists find genes that control growth of common skin cancer
5. Researchers find missing genes of ancient organism
6. Scientists document complex genomic events leading to the birth of new genes
7. Genrate: a generative model that finds and scores new genes and exons in genomic microarray data
8. Advances in the characterisation of the oyster mushroom genes
9. Researchers find new genes necessary to make embryo
10. Protein helps regulate the genes of embryonic stem cells
11. Compounds in plastic packaging act as environmental estrogens altering breast genes
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Dust gust

(Date:12/19/2014)... , Dec. 18, 2014   LaunchKey , the first ... post-password and Internet of Things era, today announced the ... venture round was led by Metamorphic Ventures with participation ... Partners, VegasTechFund, and others.  LaunchKey has raised $4 million ...
(Date:12/17/2014)... SM announced today its completion of a Good ... current U.S. Food and Drug Administration (FDA) regulations. This ... smart phone application trials utilizing the highest principles for ... determined to improve global healthcare access, quality, and delivery ...
(Date:12/17/2014)... , Dec. 16, 2014  Automation is fundamentally transforming the ... at international borders. Over the past decade, ePassports, biometric ... to self process through border control via eGates and ... of airports, seaports, and land borders across the globe. ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... of functional, stable blood vessels at the site of ... the Georgia Institute of Technology have been able to ... "This study shows that bio-artificial materials are suitable ... on the study Andrs Garca, professor and Woodruff Faculty ...
... , , MILPITAS, Calif., Dec. 21 Cermetek Microelectronics, ... V.22bis modem module (2400 bits per second), is the first ... medical equipment safety. Cermetek has targeted the CH24606 as a ... for less than $15 in 1000 piece quantities. , Aside ...
... supposedly used it to guide the construction the Pyramids. The ... on it. Fictional Harvard symbologist Robert Langdon tried to unravel ... "It" is the golden ratio, a geometric proportion that ... the eye and has been the root of countless mysteries ...
Cached Biology News:Bioengineered materials promote the growth of functional vasculature, new study shows 2Bioengineered materials promote the growth of functional vasculature, new study shows 3Cermetek Introduces Medically Approved Modem Module 2Mystery of golden ratio explained 2
(Date:1/22/2015)... Davis, California (PRWEB) January 22, 2015 ... of Accelerator Mass Spectrometry (AMS) services to the pharmaceutical ... PhD has joined the company in the position of ... 30 years of broad and valuable experience in drug ...
(Date:1/22/2015)... January 21, 2015 Cambridge Semantics, the leading ... today announced that 2014 was a record-breaking year across the ... of the Anzo Smart Data Platform and our Smart Data ... insights from diverse data which led to record growth for ...
(Date:1/22/2015)... 2015 zFlo Motion , a US ... an exciting product from a new partner. STT-Systems ... the past 15 years, with offerings in the optical-motion capture, ... IMU system (inertial measurement unit), iSen, is opening eyes around ...
(Date:1/22/2015)... NEW BRUNSWICK , Nueva Jersey , 22 ... Award for Biomedical Research abre hoy su llamada ... las personas cuya investigación científica ha hecho, o tiene ... de la salud humana. Las nominaciones se aceptarán hasta ...
Breaking Biology Technology:Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3Cambridge Semantics Announces Record Results for 2014 23D Motion Capture Just Got Easy 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4
... , SAN DIEGO, Sept. 3 Gen-Probe Incorporated (Nasdaq: ... conferences: , , , Baird,s 2009 Health ... , Thomas Weisel Partners, Healthcare Conference 2009 in Boston at ... Stanley Global Healthcare Unplugged Conference in New York at 8:35 a.m. ET on September ...
... ... detection, diagnostics capabilities , ... Argonne, IL (PRWEB) September 3, 2009 -- Researchers at the ... improve the stability of antibodies. The technique could lead to better biosensors, disease ...
... NEW YORK, Sept. 3 Reportlinker.com announces that a new market research ... Proteomics: Technologies and Global Markets , , ... REPORT HIGHLIGHTS , , * ... in 2008 to an estimated $7.9 billion in 2009 and $19.4 billion ...
Cached Biology Technology:Gen-Probe to Webcast Four Upcoming Investor Presentations 2Argonne Researchers Develop Method that Aims to Stabilize Antibodies 2Argonne Researchers Develop Method that Aims to Stabilize Antibodies 3Argonne Researchers Develop Method that Aims to Stabilize Antibodies 4Reportlinker Adds Proteomics: Technologies and Global Markets Report 2Reportlinker Adds Proteomics: Technologies and Global Markets Report 3Reportlinker Adds Proteomics: Technologies and Global Markets Report 4Reportlinker Adds Proteomics: Technologies and Global Markets Report 5Reportlinker Adds Proteomics: Technologies and Global Markets Report 6Reportlinker Adds Proteomics: Technologies and Global Markets Report 7Reportlinker Adds Proteomics: Technologies and Global Markets Report 8Reportlinker Adds Proteomics: Technologies and Global Markets Report 9Reportlinker Adds Proteomics: Technologies and Global Markets Report 10Reportlinker Adds Proteomics: Technologies and Global Markets Report 11Reportlinker Adds Proteomics: Technologies and Global Markets Report 12Reportlinker Adds Proteomics: Technologies and Global Markets Report 13Reportlinker Adds Proteomics: Technologies and Global Markets Report 14Reportlinker Adds Proteomics: Technologies and Global Markets Report 15Reportlinker Adds Proteomics: Technologies and Global Markets Report 16Reportlinker Adds Proteomics: Technologies and Global Markets Report 17Reportlinker Adds Proteomics: Technologies and Global Markets Report 18Reportlinker Adds Proteomics: Technologies and Global Markets Report 19Reportlinker Adds Proteomics: Technologies and Global Markets Report 20Reportlinker Adds Proteomics: Technologies and Global Markets Report 21
... T1 Thermocycler provides high speed and excellent ... with a TGradient Thermocycler can be run ... with a silver block for 48 or ... well plates or in-situ applications are available. ...
SDS-OutT SDS Precipitation Reagent...
Designed for use with the Agencourt SprintPrep 384 kit and all MCPrep reagent kits. Used with flat bottom 96-well microplates such as deep well plates used to culture bacteria....
... Ideal for staining westerns and includes stickers ... Pour spouts in each corner facilitate pouring ... be used for identification. Lid is designed ... for staining several gels simultaneously. Lid also ...
Biology Products: