Tag: "satellite" at biology news

Envisat captures first image of Sargassum from space

...f 2005. "This appears to be the first report of a satellite image of Sargassum," Gower said. "It is usually associated with the area of the North Atlantic known as the Sargasso Sea after the Sargassum encountered there by early explorers. Our observations of Sargassum lines extending over large areas of the G...

Exploring the dark matter of the genome

...l distinct kinds. Simple, short repeats are called satellite DNAs, which tend to become more abundant near the ...en millions of bases in length. In these "seas" of satellite DNA there are "islands" of moderate-length repeats totaling only tens or hundreds of kilobases, made...

Antarctic icebergs -- Hotspots of ocean life

...nts – physical, biological and chemical, and using satellite images provided by NASA. At the same time, the...cebergs was a challenge. First the scientists used satellite images to select two icebergs to study in detail. Then they sailed aboard the Antarctic research ves...

Want to save polar bears? Follow the ice

...l Bears," WCS will use both current and historical satellite imagery to predict where sea ice is likely to pers...ogists to bring nearly 30 years of daily collected satellite imagery and meteorological data into a Geographical Information Systems (GIS) map that will enable c...

Arctic ice retreating more quickly than computer models project

...g early aircraft and ship reports with more recent satellite measurements that are considered more reliable tha... percent per decade from 1979 to 2006 according to satellite observations. ...

Madagascan tropical forests return thanks to better management and well-defined ownership

...ntre, Sweden. The results, based on analyses of satellite images and vegetation on the ground, surprised the team of scientists from Sweden and the University of Antananarivo in Madagascar. As a result, they went further and also made a social inventory based on interviews with local forest officials and vi...

City ants take the heat

...l Change. "We will construct thermal maps using satellite images recorded over several years. These maps will enable us to assess the potential biological consequences of urban warming and identify suitable sites for future experiments," Weng said. ...

Corals that can fight global warming may one day help fragile reefs

...eratures (which are monitored with high-resolution satellite detectors) are related to lethal coral reef epidemics. The warm temperatures that have been occurring worldwide as a result of global warming appear to be facilitating fatal epidemics in coral reefs across the globe, according to Harvell and her co...

UTSA researchers examine effects of global warming on Antarctic

...e can compare the data collected to what we see in satellite imagery," said Xie. During the journey, Xie and Cicek made visual observations of the sea ice for their own research and also transmitted meteorological data regularly into the world weather observing network for a variety of factors including w...

Warming oceans threaten Antarctic glaciers

...iers that pose a threat to future sea levels using satellite observations, according to a study published in th...sists that the success of the research lies in the satellite instrumentation from which it is derived: "The extreme precision with which we can now make measurem...

Global 'sunscreen' has likely thinned, report NASA scientists

...mate." The study uses the longest uninterrupted satellite record of aerosols in the lower atmosphere, a uniq... Project by extracting a clear aerosol signal from satellite measurements originally designed to observe clouds and weather systems that date back to 1978. The r...

Turtles are loyal in feeding as well as in breeding

...ad turtles nesting at two beaches on Cyprus, using satellite transmitters. All females tracked for more than six months remained in the same foraging grounds, moving to deeper water for the winter where they conducted dives of up to a record breaking 10.2 hours. Five females were also tracked when they nested ...

Satellites shed light on global warming

...in the UK said. Cipollini illustrated the role satellite instruments have played in understanding these elu...g how long their echoes take to bounce back to the satellite platform. The sensor times its pulses' journey down to under a nanosecond to calculate the distance ...

CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes

A stunning series of satellite imagery of Australia's Great Barrier Reef released...efore." The images were taken from NASA's MODIS satellite by GeoScience Australia's Alice Springs site for a new product being developed by the Wealth from Oc...

NASA snow data helps maintain nation's largest, oldest bison herd

... determining their path and destination. Now, NASA satellite data and computer modeling and U.S. Department of ...on a five-year, NASA-funded project that uses NASA satellite data and computer modeling to help park officials better understand the relationship between snow ac...

Record ozone loss during 2006 over South Pole

Ozone measurements made by ESA's Envisat satellite have revealed the ozone loss of 40 million tons on...side it. Envisat, the largest Earth observation satellite ever built, can localise ozone depletion and track its changes, enabling the rapid estimation of UV ...

NASA satellite data helps assess the health of Florida's coral reef

NASA satellite data was used to help monitor the health of Florida's coral reef as part of a field research effort completed this August and September. The project was the first comprehensive assessment of the resiliency of reefs along the entire National Marine ...

Researchers link ocean organisms with increased cloud cover and potential climate change

...ge bloom of phytoplankton was occurring. Based on satellite data, the researchers hypothesized that airborne p...nection quite accidentally. "While looking at the satellite pictures, I noticed that cloud properties over large phytoplankton blooms were significantly differe...

The subtleties of tropical forest demise

... many of the threats are," said Peres. "We rely on satellite images or aerial photos to tell us how fast tropical forests are disappearing, but many of the new and emerging threats are virtually invisible, unless you're on the ground." The editors define four categories of emerging threats to tropical forests...

New system could drastically reduce herbicide use

...h) project. "We were collecting field data from satellite imagery, such as soil moisture and plant conditions, but we needed to have ground reference data to validate that information," said Tian. "But that kind of data is tedious to collect," he continued, "and it's very hot work. The grad students who ...

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