Navigation Links
First satellite measurement of water volume in Amazon floodplain
Date:8/5/2010

is, the amount of water that spilled onto land when the Amazon River overflowed its banks during the rainy season.

Alsdorf and his team used four satellites -- three NASA satellites and one from the Japan Aerospace Exploration Agency -- to get the first direct measure of water in the floodplain.

They combined data from the Gravity Recovery and Climate Experiment, the Global Precipitation Climatology Project, the Shuttle Radar Topography Mission, and the Japanese Earth Resources Satellite. They focused on measuring water level changes during the wet and dry seasons between 2003 and 2006.

Taken together, these satellites gave a picture of how the Amazon landscape changed as highland rains surged through the river's many tributaries and the resulting overflow spilled into the lowland jungle. After the water receded, they calculated the change in volume along the floodplain.

These calculations haven't been made before, in part due to the immense difficulty of combining different kinds of data in a reliable way. The researchers had to meld gravity readings -- a measure of the flood water's mass -- with radar and optical measurements of the water level and extent of the floodplain.

The measurements added up to an average of 285 cubic kilometers (285 billion metric tons) of water stored and emptied from the floodplain in a year.

At the height of the rainy season, water flowed into various locations on the Amazon floodplain at a rate of 5,500 cubic meters (5,500 metric tons) per second, and during the dry season, it drained away into the Amazon River -- and, ultimately, into the Atlantic Ocean at a rate of 7,500 cubic meters (7,500 metric tons) per second.

The floodplain total, however large, represents only 5 percent of the amount that scientists believe is emptying from the Amazon River into the ocean every year.

To Alsdorf, the finding begs the question of exactly how much water is flowing throug
'/>"/>

Contact: Doug Alsdorf
Alsdorf.1@osu.edu
614-247-6908
Ohio State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Genome of ancient sponge reveals origins of first animals, cancer
2. First nearshore survey of Antarctic krill reveals high density, stable population in shallow waters
3. Discovered: Audubons first engraving of a bird
4. First step toward electronic DNA sequencing: Translocation through graphene nanopores
5. First-of-its-kind map details the height of the globes forests
6. NTU gets GreenLite for Singapores first truly eco-friendly bus
7. InQ Biosciences Introduces First Fully Integrated Cell Research System
8. First of its kind: WSU led Bio-Jet fuel project officially gets off the ground
9. Flemish researchers provide the first experimental evidence of dynamic allostery in protein regulation
10. Bacterial diversity of Tablas de Daimiel studied for first time
11. First preliminary profile of proteins in bed bugs saliva
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/22/2014)... Institute of Standards and Technology (NIST), working with ... technique for analyzing biological cells and tissues based ... technique is an advanced form of the widely ... signals that are 10,000 times stronger than obtained ... than obtained from comparable "coherent Raman" instruments, and ...
(Date:7/22/2014)... commercial diet programs and pills, the Weight Watchers program ... the money. The Jenny Craig regimen generated the greatest ... tested, according to researchers at Duke-National University of Singapore ... the June issue of the journal Obesity , ... per dollar spent as insurance carriers consider coverage for ...
(Date:7/22/2014)... Nancy Buccola, MSN, APRN, PMHCNS-BC, CNE, Assistant Professor ... New Orleans School of Nursing, contributed samples used ... material associated with schizophrenia and also suggesting a ... The study, Biological insights from 108 schizophrenia-associated genetic ... Nature , available at http://www.nature.com/nature/journal/vaop/ncurrent/full/nature13595.html., ...
Breaking Biology News(10 mins):Enhanced NIST instrument enables high-speed chemical imaging of tissues 2Enhanced NIST instrument enables high-speed chemical imaging of tissues 3Study compares cost-effectiveness of weight-loss programs and drugs 2Study compares cost-effectiveness of weight-loss programs and drugs 3LSUHSC contributes to work identifying new DNA regions associated with schizophrenia 2
... of an embryonic stem cell, which has the potential to ... complex interaction of genes, proteins that bind DNA, and molecules ... paper, biologists from MIT and the University of California at ... of stem cells into mature heart cells. The study, the ...
... ultrasound waves, MIT engineers have found a way to ... drug delivery more efficient. This technology could pave the ... to the researchers. "This could be used for ... systemic drugs and proteins such as insulin, as ...
... Alps that are not native to that region? Which ... How big a threat will they become to local ... today by the European Commission,s in-house science service, the ... answering these and other questions related to 16 000 ...
Cached Biology News:Probing matters of the heart 2Probing matters of the heart 3Getting (drugs) under your skin 2Getting (drugs) under your skin 3Environment: Pooling information to combat the threat of alien species in Europe 2Environment: Pooling information to combat the threat of alien species in Europe 3
(Date:7/22/2014)... SHENZHEN, China , July 22, 2014 /PRNewswire/ ... a subsidiary of BGI, the world,s largest genomics ... new human whole exome sequencing service based on ... includes in-depth bioinformatics analysis and SNP validation, and ... 2014. Complete Genomics, highly regarded ...
(Date:7/22/2014)... CAMBRIDGE, Mass. , July 22, 2014 /PRNewswire/ ... of $650 million from philanthropist Ted Stanley ... disorders and bringing new treatments based on molecular ... the world. The Stanley commitment ... among the largest for scientific research in general ...
(Date:7/22/2014)... PLAINS, New Jersey , 22. Juli 2014 ... für die Life-Sciences-Industrie, hat die Ernennung von Marcus ... bekanntgegeben. Herr Bergler hat die europäischen kommerziellen ... Lösungen unterstützt. Bevor er sich Qforma anschloss, war ... bei Cegedim Customer Information, als Vertriebsteam-Leiter Deutschland bei ...
(Date:7/21/2014)... Lawrence Livermore National Laboratory ... and Las Positas College (LPC) recently established a ... hands-on training for veterans, officials recently announced. , ... Positas is designed to help veterans develop ... careers, and establishes a pipeline of qualified candidates ...
Breaking Biology Technology:BGI Tech Launches Human Whole Exome Sequencing Service on Complete Genomics' Advanced Platform 2BGI Tech Launches Human Whole Exome Sequencing Service on Complete Genomics' Advanced Platform 3$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 2$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 3$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 4$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 5$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 6$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 7$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 8$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 9$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research 10Qforma gibt Schaffung des neuen Postens als General Manager in Europa bekannt 2Engineering Program Established for Veterans 2Engineering Program Established for Veterans 3
... MOUNTAIN VIEW, Calif., Feb. 25 Alexza,Pharmaceuticals, ... that it has initiated,its first Phase 3 ... an inhalation product candidate being developed for ... schizophrenia or bipolar disorder. Alexza,believes the novel, ...
... t2cure, a clinical,stage biopharmaceutical company developing novel regenerative ... it has appointed,Dr. Petra Rueck Head of Clinical ... join our company", said Manfred Ruediger,CEO of t2cure. ... be of critical importance to t2cure as we ...
... SAN DIEGO, Feb. 25 Speid & Associates, ... is hosting,a six session Webinar series on diabetes ... and April. Speakers will include former Food and,Drug ... Lipicky, as,well as a distinguished list of other ...
Cached Biology Technology:Alexza Initiates First Phase 3 Clinical Trial for AZ-004 (Staccato(R) Loxapine) 2Alexza Initiates First Phase 3 Clinical Trial for AZ-004 (Staccato(R) Loxapine) 3Alexza Initiates First Phase 3 Clinical Trial for AZ-004 (Staccato(R) Loxapine) 4Alexza Initiates First Phase 3 Clinical Trial for AZ-004 (Staccato(R) Loxapine) 5Stem Cell Company t2cure Appoints Dr Rueck Head of Clinical Operations 2The Diabetes Series 2008: Experts Speak About Developing Diabetes Therapeutics 2
... T Squareds patented high efficiency dynamic valve ... With the most compact, lightweight package in ... use in portable air and gas applications., ... high efficiency. , Includes DC Motor. ...
...
Alkaline Phosphatase (E. coli C75), 100 units. Removes 5'-phosphates from DNA. Category: Nucleotides & Enzymes & Biochemicals, Modifying Enzymes, Alkaline Phosphatases....
... CyScribe First-Strand cDNA Labeling System - ... 50 reactions. For the generation and ... reagents are packaged together for complete ... protocols can be used for performing ...
Biology Products: