Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

More Water Circulates In Africa & America

More Water Circulates In Africa And America Than Previously Expected

By Marietta Gross - Austria

Scientists of the Geo-Research-Centre in Potdsdam (GFZ) have found that more water exists on the planet than initially thought. New satellite maps based upon data of Grace-Satellites, which measure the gravitational force of the Earth, have delivered information that has scientists wondering.

Satellite groups pass above regions with increased gravity. The satellites map the regions from differing aspects and perspectives. Radar equipment on board the satellites identify the distance of both satellites to the nearest millimetre. GPS-receivers detect their position. This creates an accurate map.

Now a scientist team at the Geo-Research-Centre in Potsdam has been able to calculate the amount of water on the earth. GFZ-physicist Markus Rothacher said large water masses tend to increase the gravitational force. "We were able to filter out other effects," Rothacher said.

He said South America's rainy season rinsed millions of tonnes of water into the Amazon River. The water level was rose by 20 centimetres. Karl Heinz Ilk from the University Bonn said: "The moved amount of water was a third higher than expected." In the following four months the surface of river and ground water in the Amazon Basin descended by 20 centimetres, while Venezuela experienced heavy rain-falls.

More water seems to circulate in some places. The scientists found that the South Asian Monsoon region, and, the African tropical regions have comparable amounts of rain to the Amazon. "That was really surprising," said Ilk.

The river valleys of Siberia experience huge amounts of melting and rain water in spring. The surface there rises by 15 centimetres on average, more than double than expected.

Scientists believe that the world faces a climatic water shortage, and that the Grace-Data might be a warning of excessive usage of ground water.

The scientists report in the "Geophysical Research Letters" based on the Grace-Data that during the heat summer in 2003 Europe's water levels declined by eight centimetres.

The new water balance might also be used for climate research including studies into how humans alter natural water circulation and what impact this had regionally and globally.

ENDS

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

ScoopPro: Helping The Education Sector Get More Out Of Scoop

The ScoopPro professional license includes a suite of useful information tools for professional users of Scoop including some specifically for those in the education sector to make your Scoop experience better. More>>

Big Tax Bill Due: Destiny Church Charities Deregistered

The independent Charities Registration Board has decided to remove Destiny International Trust and Te Hahi o Nga Matamua Holdings Limited from the Charities Register on 20 December 2017 because of the charities’ persistent failure to meet their annual return obligations. More>>

57 Million Users' Data: Uber Breach "Utterly Preventatable"

Cybersecurity leader Centrify says the Uber data breach of 57 million customer and driver records - which the ride-hailing company hid for more than a year - was “utterly preventable”. More>>

Scoop 3.0: How You Can Help Scoop’s Evolution

We have big plans for 2018 as we look to expand our public interest journalism coverage, upgrade our publishing infrastructure and offer even more valuable business tools to commercial users of Scoop. More>>

Having A Cow? Dairy Product Prices Slide For Fourth Straight Auction

Dairy product prices fell at the Global Dairy Trade auction, retreating for the fourth straight auction amid signs of increased production... Whole milk powder fell 2.7 percent to US$2,778 a tonne. More>>

ALSO:

Statistics: Butter At Record $5.67/Block; High Vegetable Prices

Rising dairy prices have pushed food prices up 2.7 percent in the year to October 2017, Stats NZ said today. This followed a 3.0 percent increase in the year to September 2017. More>>

ALSO:

Science: New Research Finds Herbicides Cause Antibiotic Resistance

New University of Canterbury research confirms that the active ingredients of the commonly used herbicides, RoundUp, Kamba and 2,4-D (glyphosate, dicamba and 2,4-D, respectively), each alone cause antibiotic resistance at concentrations well below label application rates. More>>

ALSO: