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:11/7/2014)... conjunction with the Glendale and ... the Verdugos has announced the " GLENDALE - ... to keep the Verdugo Regional Crime Lab operational after its ... existence, the Lab has processed more than 400 DNA samples, ... "Because our number one priority is the wellbeing of ...
(Date:11/6/2014)... that predator runs so fast that it essentially blinds itself. ... fastest creature on Earth. Some of these half-inch-long beetles cover ... per hour). The fastest human can do about five body ... a person would have to hit 480 miles per hour. ... speeds, everything becomes a blur. They can,t gather enough light ...
(Date:11/5/2014)... de Janeiro, Brazil -Individuals show great diversity in their ... males and females greatly differ in their perceptual evaluation ... of smell tests. , Sex differences in ... behaviors and may be connected to one,s perception of ... emotions. Thus, women,s olfactory superiority has been suggested to ...
Breaking Biology News(10 mins):Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2The tiger beetle: Too fast to see 2The female nose always knows: Do women have more olfactory neurons? 2
... the University of Minnesota will help corn and soybean farmers ... change. The project is funded by a five-year, $4.1 ... of Food and Agriculture (NIFA). The aim is to take ... in anticipation of climatic changes such as stronger storms and ...
... have designed a multiple-compartment gel capsule that could be ... researchers used a simple "one-pot" method to prepare the ... The capsule,s structure -- hollow except for polymer chains ... spatially-segregated compartments that make it a good candidate for ...
... Governing Board has elected ten new Fellows of the ... outstanding contributions in one or more of the following: ... be recognized during Entomology 2011 -- ESA,s 59th Annual ... in Reno, Nevada (see: http://www.entsoc.org/entomology2011 ). ...
Cached Biology News:U of M project will help corn and soybean farmers prepare for climate change 2Unique gel capsule structure enables co-delivery of different types of drugs 2Entomological Society of America names 2011 fellows 2Entomological Society of America names 2011 fellows 3Entomological Society of America names 2011 fellows 4Entomological Society of America names 2011 fellows 5Entomological Society of America names 2011 fellows 6Entomological Society of America names 2011 fellows 7Entomological Society of America names 2011 fellows 8Entomological Society of America names 2011 fellows 9Entomological Society of America names 2011 fellows 10Entomological Society of America names 2011 fellows 11Entomological Society of America names 2011 fellows 12
(Date:11/26/2014)... WILMINGTON, DE (PRWEB) November 26, 2014 ... MPN Heroes recognition reception on December 5, 2014, in ... annual meeting. The MPN Heroes event will honor clinicians, ... the field of myeloproliferative neoplasms (MPNs). , Special ... will discuss his family's cancer journey at the reception. ...
(Date:11/26/2014)... Bio-Techne Corporation (NASDAQ: TECH ) ... to serve in a newly created position of ... Gavin will be responsible for managing the operations of ... business acquired in July 2014 and the recently acquired ... -based ProteinSimple develops and commercializes proprietary systems and ...
(Date:11/24/2014)... -- IGI Laboratories, Inc. (NYSE MKT: IG), a ... today announced it has submitted an additional abbreviated new ... Administration (FDA), which brings the Company,s total number of ... now pending at the FDA. ... commented, "Our team here at IGI has continued to ...
(Date:11/24/2014)... Nov. 24, 2014 VolitionRx Limited (OTCQB: ... for cancer and other conditions, today announced that data from ... Science for Business BioWin Day 2014, being held November 26, ... come from VolitionRx,s lung cancer pilot study, the samples for ... Hospitalier Universitaire (CHU) de Liege in Belgium ...
Breaking Biology Technology:CURE Magazine and Incyte to Honor MPN Heroes 2CURE Magazine and Incyte to Honor MPN Heroes 3CURE Magazine and Incyte to Honor MPN Heroes 4Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 2Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 3IGI Laboratories, Inc. Announces ANDA Submission 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 4VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 5VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 6
... Instructors at Madison Area Technical College would ... ,Over the last decade, the percentage of women in IT careers ... said Janet Kelly, communications director for MATC. And at MATC, enrollment ... , ,Speaking at the Women in IT Expo at ...
... Milwaukee, Wis . - As part of a new ... new destinations, Midwest Airlines has announced the ... Raleigh/Durham, N.C., the airport that serves Research Triangle ... has been fending off a hostile takeover bid by ...
... Lucigen Corp . and Imaxio S.A. ... worldwide rights to manufacture and sell OverExpress ... agreement, Imaxio will retain the right to license the ... will provide the cells to commercial licensees. No license ...
Cached Biology Technology:MATC seeks to turn around falling tech enrollment among women 2Lucigen Corp. enters global licensing agreement 2