Sentences with phrase «satellite data measurement»

Not exact matches

The information collected will no doubt be particularly valuable once it's cross-referenced with satellite imagery and measurements, as well as with data on water quality and such collected by scientists working in the Gulf and on the coast.

Now a new study led by researcher Eduardo Maeda from the University of Helsinki has put together a unique combination of satellite data and hydrological measurements to study the problem.

Susan Solomon and colleagues at the US National Oceanic and Atmospheric Administration combined satellite measurements and weather balloon data to track changes in the concentration of water vapour 16 kilometres up in the stratosphere, between the 1980s and today.

Bigelow Laboratory for Ocean Sciences researchers have developed a statistical method to quantify important ocean measurements from satellite data, publishing their findings in the journal Global Biogeochemical Cycles.

In order to make a detailed record of this structure and be able to convert it into biomass, the satellite data is complemented by ground - based measurements.

Dirk Notz and Julienne Stroeve have now compared corresponding model calculations with data from satellite measurements, and discovered that the climate models underestimate the loss of Arctic sea ice.

The scientists, led by Eric Oliver of Dalhousie University in Canada, investigated long - term heat wave trends using a combination of satellite data collected since the 1980s and direct ocean temperature measurements collected throughout the 21st century to construct a nearly 100 - year record of marine heat wave frequency and duration around the world.

A report by 47 scientists using data from 10 satellites provides exquisitely detailed measurements of Greenland and Antarctica

The environmental data sets from the Tropical Rainfall Measuring Mission and the MODIS sensors will continue into the next decade with data provided by their follow - on missions: the Global Precipitation Measurement mission to launch in early 2014, and the Visible Infrared Imaging Radiometer Suite on the Suomi National Polar - orbiting Partnership satellite currently in orbit.

Four days after its launch on 17 January, the Jason - 3 high - precision ocean altimetry satellite is delivering its first sea surface height measurement data in near - real time for evaluation by engineers from the Centre National d'Etudes Spatiales (CNES), EUMETSAT, the US National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA) and scientists from the international Ocean Surface Topography Science Team.

For the first time, the researchers have proved that both the worldwide measurement network NDACC with its ground stations and modern weather satellites provide reliable global data for the isotope composition of tropospheric water vapor.

Argo floats and satellites are now helping to plug Austral ocean data gaps, and improving the accuracy of Northern Hemisphere measurements and estimates.

The study is the largest of its kind and the first to use a combination of satellite temperature data and long - term ground measurements.

Climate researchers of Karlsruhe Institute of Technology (KIT) gather the data required by in - situ measurements as well as by using remote sounding instruments, e.g. on board of satellites.

While satellites have provided consistently good data for years, the next frontier in sea level rise measurement is a new type of radar that can capture a more crisp, higher - resolution picture of sea surface heights.

A combination of airborne measurements and space weather data from satellites may allow the radiation «clouds» to be tracked.

The campaign is supported by ground - based measurements at various stations, analysis of satellite data, and model calculations.

This past September the National Snow and Ice Data Center in Boulder, Colo., which collects polar and ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 1979.

While the typical way of measuring erosion is to calculate volumetric loss, using data from satellites to obtain measurements of the dune's three - dimensional surface area before and after an event, that data is expensive and therefore often unavailable unless a storm is exceptionally devastating, like Sandy.

In addition, GOCE data could be used to help validate satellite altimetry measurements for an even clearer understanding of ice - sheet and sea - level change.

Combined with measurements from an instrument aboard NASA's Calipso satellite — another member of the A-Train — the data from Glory's APS will allow scientists to understand how different types of aerosols are distributed throughout the layers of the atmosphere.

The satellites give temperature measurements with a spatial resolution of roughly 1 square kilometre, which the team matched up with data from the US Federal Aviation Administration on the exact location of 2358 wind turbines in west - central Texas.

Liming Zhou of the University at Albany, State University of New York, and colleagues studied land - surface temperature data gathered by NASA's Terra and Aqua satellites, which give measurements with a spatial resolution of roughly 1 square kilometre.

The newly available data gives researchers a treasure trove of measurements they can use to better understand how space weather works and how best to protect critical infrastructure, such as the nation's satellites, aircraft, communications networks, navigation systems, and electric power grid.

Taking measurements in 1993 and 1998, the researchers found that the cap's interior was stable or grew slightly at elevations above 2000 meters, a result also seen in satellite data from 1978 to 1988.

In the new paper, published in the journal Environmental Research Letters, Höglund - Isaksson estimated global methane emissions from oil and gas systems in over 100 countries over a 32 - year period, using a variety of country - specific data ranging from reported volumes of associated gas to satellite imagery that can show flaring, as well as atmospheric measurements of ethane, a gas which is released along with methane and easier to link more directly to oil and gas activities.

AMPERE took a major step toward real - time measurements in August when Boeing created a new data pathway for transferring AMPERE magnetic field samples from Iridium's satellites at a rate of every two to 20 seconds.

In contrast, the Scripps team opted to directly correlate albedo measurements made by NASA's CERES instrument data with observations of sea ice extent made by the Special Sensor Microwave Imager (SSM / I) radiometers aboard Defense Meteorological Satellite Program satellites.

Now, because those measurements appear to be within reach, he says, the challenge will be to design new data - filtering algorithms to tease out those subtle differences from light collected by the satellite.

The glaciologist was combing through satellite and GPS data to see what small, local effects could be clouding satellite measurements of larger changes in Earth's gravity from ice loss.

Kalnay and Cai developed a more precise measurement by comparing one set of long - term temperature data recorded from satellite and weather balloons, which detect the effects of warming from greenhouse gases, with another set recorded at ground level by 1,982 weather stations across the continent.

They were unable to find a complete and reliable published rainfall record for the entire watershed using ground - based measurements, so they analyzed rainfall data from NASA's Tropical Rainfall Measuring Mission satellite.

The data comes from NASA and the Japan Aerospace Exploration Agency's Global Precipitation Measurement mission (GPM), a constellation of international and domestic satellites that estimate rainfall and snowfall every three hours.

A: The National Snow and Ice Data Center (NSIDC) announced this week that the sea ice surrounding Antarctica reached its maximum extent — its widest halo around the continent — in 2014 on 22 September: more than 20 million square kilometers, which also set a record for the highest extent of sea ice around the continent since satellite measurements began in the late 1970s.

The cause of those anomalies varied by region, the researchers discovered when they looked more closely at OCO - 2 and other satellite data showing changes in biological productivity, carbon dioxide concentration in the atmosphere and other measurements.

The international team evaluated data from the East Coast of America, including GPS and satellite measurements.

In addition to providing real - time air quality data above and around the leak site to state regulators, the measurements will allow researchers the opportunity to check the accuracy of greenhouse gas measurements made using remote sensing systems such as satellites.

To remedy this, Sundar Christopher, an atmospheric scientist at the University of Alabama at Huntsville, compared satellite data with ground measurements in well - studied areas.

Khan and his colleagues combined GNET data with ice thickness measurements taken by four different satellites: the Airborne Topographic Mapper (ATM), the Ice, Cloud and Land Elevation Satellite (ICESat), and the Land, Vegetation and Ice Sensor (LVIS) from NASA; and the Environmental Satellite (ENVISAT) from the European Space Agency.

To do so, Ichoku and his colleagues used satellite records from 2001 to 2014 — including data from NASA's Moderate Resolution Imaging Spectroradiometer and the Tropical Rainfall Measurement Mission — to analyze the impact of fires on various water cycle indicators, namely soil moisture, precipitation, evapotranspiration and vegetation greenness.

Based on field observations, seismic shaking data, GPS measurements, and radar imagery from satellites, Hamling and his colleagues found that surface ruptures in the New Zealand quake were widely separated — in one case by more than 15 kilometers.

For example, previous global initiatives include satellite - based chlorophyll measurements, the Census of Marine Life, long - term observation sites, and arrays of remote sensors on floats that provide physical, chemical, and biological data [15].

Within the framework of DACCIWA, the researchers will first compile current data in an extensive measurement campaign with satellites, aircraft, and ground - based instruments.

Bato and her collaborators are among the first to test whether data assimilation, a method used to incorporate new measurements with a dynamical model, can also be applied in volcano studies to make sense of such satellite data.

In addition to the surface data described above, measurements of temperature above the surface have been made with weather balloons, with reasonable coverage over land since 1958, and from satellite data since 1979.

While there remain disparities among different tropospheric temperature trends estimated from satellite Microwave Sounding Unit (MSU and advanced MSU) measurements since 1979, and all likely still contain residual errors, estimates have been substantially improved (and data set differences reduced) through adjustments for issues of changing satellites, orbit decay and drift in local crossing time (i.e., diurnal cycle effects).

The atlas, which covers over 80 percent of the world, was created over a course of over 10 years using data gathered by the NOAA — NASA Suomi National Polar - orbiting Partnership satellite and verified through ground - based measurements.

If you look at the recent data where we have particularly good satellite measurements of what the Sun is doing, there is no increasing trend in the solar output to explain the rapid, recent increases in surface temperature of the Earth.

Application of image cross-correlation software to the measurement of glacier velocity using satellite image data, Remote Sensing of Environment, 42, 177 - 186.

The programme also carries out experimental research in space physics, utilising data from ground - based instruments at high latitudes, in co-ordination with measurements on national and international satellites.