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Tag: "satellite" at biology news

Parts of the Caribbean and Central America are likely to have less summer rain

...er simulations, Neelin and his colleagues analyzed satellite precipitation data available since 1979, and rain gauge measurements since the 1950s. Over the last 50 years, the Caribbean has experienced a trend of decreased summer precipitation, but not a dramatic one, Neelin said. The computer models predict t...

Amazon rainforest greens up in the dry season

...the intact forest grows by analyzing five years of satellite images from the MODIS (Moderate Resolution Imaging...ctroradiometer) instrument mounted on NASA's Terra satellite and by cross-checking with information from local sites on the ground. The research was funded by NA...

First wolverine radio-collared in Pacific Northwest

...ow Valley to fit the young female wolverine with a satellite radio collar to initiate the first scientific stud... radio collar to report her movements to Aubry via satellite for the next 18 months. "With this technology, we can now begin to gather reliable information on t...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...lectronic components and sensors, plus advances in satellite technology, have led to dramatic improvements in the tags. Recent innovations developed at SMRU have greatly improved the ability to pinpoint an animal's geographic location, and researchers are adding new capabilities to the tags, such as measuring ...

2005 was the warmest year in a century

...se temperature data from weather stations on land, satellite measurements of sea surface temperature since 1982, and data from ships for earlier years. Previously, the warmest year of the century was 1998, when a strong El Nino, a warm water event in the eastern Pacific Ocean, added warmth to global temperat...

Satellites show Amazon parks, indigenous reserves stop forest clearing

...e Instituto de Pesquisa Ambiental da Amazonia, use satellite data to demonstrate, for the first time, that rain...nst forest clearing using quantitative analysis of satellite data. The group used satellite-based maps of land cover and fire occurrence between 1997 and 2000 to...

New maps reveal true extent of human footprint on Earth

... a SAGE researcher who merged available census and satellite data to create visuals reflecting the reach of pasture and croplands worldwide. Chad Monfreda, a graduate student at SAGE, is similarly mapping the location, range and yields of over 150 individual crops reared around the planet. The exercise is alr...

NASA's AURA satellite peers into Earth's ozone hole

...y undergoes a seasonal change, but since the first satellite measurements in 1979, the ozone hole has gotten larger. Human-produced chlorine and bromine chemicals can lead to the destruction of ozone in the stratosphere. By international agreement, these damaging chemicals were banned in 1995, and their levels...

WWF peeks into mysterious life of Borneo's pygmy elephants

The same satellite system used by the U.S. military to track vehicle ... efforts and worked with experts to use commercial satellite technology to track Asian elephants for the first time. "We will be following these elephants for se...

Sahara's edge studied from ground, air and space to improve water management

...e used in support of an ambitious project to apply satellite remote sensing to improve monitoring and managemen... same time to use this 'ground truth' to calibrate satellite imagery with reality on the sandy arid ground ?as well as seeing what can be learnt about the water ...

Health of coral reefs detected from orbit

...ve coral. Repetitive, objective and broad-scale satellite coverage is the alternative. At this week's MERIS/...ld be data processing," Dekker concludes. "However satellite sensors measuring sea surface temperature such as Envisat's Advanced Along Track Scanning Radiometer...

Virtual microscopy project wins educational technology award

...rtual slides parallel the management of aerial and satellite imagery. By modifying software from the satellite and aerial imaging industry, the researchers have developed a virtual microscopy system that allows ...

Envisat radar surveillance protects endangered prehistoric fish

A satellite surveillance zone within the southern Indian Ocean...it commands on the black market. However a radar satellite surveillance system based on Envisat and Radarsat-1 imagery has cut the number of illegal fishing in...

Underlying cause of massive pinyon pine die-off revealed

...tation through both aerial surveys and analysis of satellite images of those states' pinyon-juniper woodlands. ...gues at LANL and the University of Kansas analyzed satellite images of the region's pinyon-juniper woodlands for the years 1989 through 2003 using a measure of v...

Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality

... the atmosphere. While GOME demonstrated the first satellite sensitivity to tropospheric nitrogen dioxide, SCIA...limate change. "Next we are hoping for follow-up satellite missions, in particular from geostationary orbit to monitor atmospheric pollution, which has a stron...

NRL scientists detect 'milky sea' phenomena

...ional Geophysical Data Center, presented the first satellite detection of a phenomenon known as the "milky sea." The satellite observations were corroborated by a ship-based account. This research was published in the October 4...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

...ved to clear space for farming or grazing. A new satellite imaging method, developed by Gregory Asner of the ...(In contrast, the conventional interpretation of a satellite image would consider each pixel as entirely forested or deforested.) "This method gives us an incre...

Retinal scans eyed for New Mexico show cattle

...ce records the date, time and a global positioning satellite coordinate of the location. "It's as simple as taking a picture," Encinias said. "Plus, we can do everything at chute side." Historically, 4-H and FFA exhibitors have been required to submit hair samples for DNA analysis to serve as a permanent me...

Protein behind autumn color splendor identified

... of it, in fact, that it is visible from space--in satellite images of the earth the tropical and temperate forest areas are green. In the tropics there is no autumn, but in our climate deciduous trees and other perennials lose their chlorophyll in the fall. The reason for this is that the proteins in the le...

UF study first to quantify validity of DNA I.D. tool using marine snails

...g biodiversity data and being instantly linked via satellite to the encyclopedia of life. ...

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