Sentences with phrase «from global satellite data»

What do we learn about the surface currents and variability in the ocean surface from global satellite data?

Not exact matches

Finally, the explosion to satellite communications in the eighties matched in the most recent years with fiberoptic switching systems and computer processing of cash, words, images, and data — the internetting of global consciousness — has swept up most human endeavors from local names and habitations into the global context of international trademarks, common credit cards, shared diets, world class athletics, and intercontinental rock concert tours.

The research team used satellite data to analyse changes in global vegetation cover from 2000 to 2015 and link these to changes in the surface energy balance.

«The complementary meteorological and satellite data and interpretation provided by the authors strengthen the case that dust from disparate global sources can enhance precipitation in certain meteorological environments,» Spackman wrote in an email.

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.

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.

Satellites can help deliver such information, and in 10 years» time, global biodiversity monitoring from space could be a reality, but only if ecologists and space agencies agree on a priority list of satellite - based data that is essential for tracking changes in biodiversity.

The new study, which incorporates satellite data on fire with fossil fuel emissions data from a 14 - year period between 1997 and 2010, marks one of the first times this shift has been tested with global data.

Using data from Global Positioning System (GPS) stations and Interferometric Synthetic Aperture Radar (InSAR) images collected during successive satellite fly - overs, ASU researchers were able to measure changes in surface elevation during a time period spanning the main Gorkha event, and several major aftershocks, with centimeter accuracy.

Concerned about how such pollution was affecting his family, Beijing - based data scientist Yann Boquillod founded AirVisual Earth, an online air pollution map that uses data from satellites and more than 8000 monitoring stations to display global air pollution in real time.

The data comes from space - weather sensors developed by Los Alamos National Laboratory on board the nation's Global Positioning System (GPS) satellites.

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.

But a new study, which uses satellite tracking data from more than 70,000 ships to create one of the most detailed global pictures to date, has come up with a much smaller range: between half and three - quarters of the world's seas.

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.

The first six satellites are set for launch later this year, but the deal does not include financing for sensors for the second round of satellites, and orders NASA to evaluate within 90 days the potential to acquire similar data from commercial startups like Spire Global and GeoOptics, who have pioneered using small satellites to acquire similar data, and began providing such data to NOAA for evaluation last year.

«Monitoring gross changes in forest cover — both losses and gains — is now not a technical challenge because there are many satellite data providers to choose from, robust methods for imagery interpretation, and increased computing power; what is needed is the global commitment to allocate the resources to get the job done,» says Brown.

Howarth also noted that some satellite data says the global methane increases have come from the U.S., where cattle population has dropped and rice production has mostly leveled off.

Further, all data sets were masked using the vegetated (burnable) land area defined by a global landcover data set developed from AVHRR satellite data67.

Michel and colleagues took advantage of the wealth of geophysical data that have been collected in this region, using a catalog of earthquakes that have occurred in the area and models of the fault slip rate inferred from surface deformation given by Global Positioning System (GPS) and satellite observations of ground changes.

The red line at the end (not included in the paper) illustrates the further global increase since 2000 by 5 - 6 cm from satellite data.

This satellite data was sourced from the Global Fire Emissions Database.

The tiny scrap of data to which you refer are the satellite temperature records from 1978, which was the year of the global temperature trough following the previous peak in the 1940's.

One should note that plotting the same data over the their entire length (e.g. from the starting date of the satellites in 1979) will make global warming trends more visible (see figure below).

Using monthly - averaged global satellite records from the International Satellite Cloud Climatology Project (ISCCP [5]-RRB- and the MODerate Resolution Imaging Spectroradiometer (MODIS) in conjunction with Sea Surface Temperature (SST) data from the National Oceanic and Atmospheric (NOAA) extended and reconstructed SST (ERSST) dataset [7] we have examined the reliability of long - term cloud measurements.

The objective of our study was to quantify the consistency of near - global and regional integrals of ocean heat content and steric sea level (from in situ temperature and salinity data), total sea level (from satellite altimeter data) and ocean mass (from satellite gravimetry data) from an Argo perspective.

Figure 3 Comparison of global temperature (average over 5 data sets, including 2 satellite series) with the projections from the 3rd and 4 IPCC reports.

I played back some of the discussion with the visitors from China, Australia, Japan and Indonesia, which focused in part on the benefits coming from the explosive expansion of global information networks that feel so virtual during use --- but rely on vastly complex arrays of satellites, circuitry, data banks and large flows of electricity.

A reduction in global oceanic primary production by about 6 % between the early 1980s and the late 1990s was estimated based on the comparison of chlorophyll data from two satellites (Gregg et al., 2003).

The graph of global temperature changes since early 2015 is taken directly from the data supplied by the RSS satellite through December, 2016.

The main frequency in the sea level data from the University of Colorado is also visible in satellite thermometers like UAH global data, but it seems that the sea level data are not as smeared as the land data may.

Several other satellite altimeters have also been launched, and the data from these have been used to estimate global mean sea level trends since 1993.

Fig. 2 Global sea level from tide gauges (red) and satellite altimeter data (blue, with linear trend line).

This atmospheric evidence comes from instruments in weather satellites, producing the only truly global data — and, independently, from thermometers in balloon - borne radiosondes.

He subpoenaed Kathryn Sullivan, the administrator of the National Oceanic and Atmospheric Administration, asking for a sweeping amount of information, including all documents and communications from NOAA employees about how they use global temperature datasets, including satellite data, and more.

Importantly, the satellite data series from 1979 is probably still not long enough to make any sensible comment about global warming trends since all we can see is the oscillation overprint.

Around the same time, a NASA scientist named Compton Tucker found that he could map global vegetation changes by calculating a «Normalized Difference Vegetation Index» (NDVI) from the data produced by a satellite sensor.

Monthly values of the global temperature anomaly of the lower atmosphere, compiled at the University of Alabama from NASA satellite data, can be found on Dr. Roy Spencer's website.

A post at WUWT by Forest Mims points out the SOD failed to cite the von der Haar et al. (2012) paper that finds no global trend in water vapor path from satellite data

Surface warming / ocean warming: «A reassessment of temperature variations and trends from global reanalyses and monthly surface climatological datasets» «Estimating changes in global temperature since the pre-industrial period» «Possible artifacts of data biases in the recent global surface warming hiatus» «Assessing the impact of satellite - based observations in sea surface temperature trends»

Since then, raw images from an international network of operational geostationary and polar - orbiting meteorological satellites have been routinely processed to develop a global data set of calibrated radiances and derived cloud parameters for climate research.

Summary: The most accurate source of global temperature data comes from satellites, with their full coverage and more standard sensors.

The international agreements forming the IPCC and the UNFCCC were designed to prevent greenhouse gas warming of the atmosphere, and as those agreements were hammered out, two American scientists, Roy Spencer and John Christy, developed a method that uses data collected from weather satellites to produce science's first comprehensive measure of global atmospheric temperatures.

In the present study, satellite altimetric height and historically available in situ temperature data were combined using the method developed by Willis et al. [2003], to produce global estimates of upper ocean heat content, thermosteric expansion, and temperature variability over the 10.5 - year period from the beginning of 1993 through mid-2003...

To conduct the research, a team of scientists led by John Fasullo of the US National Center for Atmospheric Research in Boulder, Colorado, combined data from three sources: NASA's GRACE satellites, which make detailed measurements of Earth's gravitational field, enabling scientists to monitor changes in the mass of continents; the Argo global array of 3,000 free - drifting floats, which measure the temperature and salinity of the upper layers of the oceans; and satellite - based altimeters that are continuously calibrated against a network of tide gauges.

With John Christy he presents the monthly real - world data from the microwave sounding unit satellites that provide the least inaccurate global temperature record we have.

Unfortunately, some members of the global warming orthodoxy have claimed the atmospheric temperature data from the University of Alabama in Huntsville (UAH) has been discredited because small errors in calculation of the orbits of satellites have corrected by UAH.

As reported in Roy's post, these plots by John are based upon data from the KNMI Climate Explorer with a comparison of 44 climate models versus the UAH and RSS satellite observations for global lower tropospheric temperature variations, for the period 1979 - 2012 from the satellites, and for 1975 — 2025 for the models.

F. «Global temperature» projections of unverified «climate models,» which involve hypothetical forecasts of, not evidence of, global warming, have increasingly diverged from the most reliable temperature records computed from the data collected by U.S. satelGlobal temperature» projections of unverified «climate models,» which involve hypothetical forecasts of, not evidence of, global warming, have increasingly diverged from the most reliable temperature records computed from the data collected by U.S. satelglobal warming, have increasingly diverged from the most reliable temperature records computed from the data collected by U.S. satellites.

REDD + has stimulated almost every dimension of forest activity: real - time satellite tracking of global forest loss; local communities using handheld data devices; long - simmering disputes over forest ownership and use; methods for benefit sharing; nested accounting to meld project and national approaches; the role of women in forest stewardship; the place for certification and reduced impact logging; enticements of billions from donors; open discussion of illegal timber trade and corruption; public platforms for indigenous groups to command large audiences, and many more... the exponential interest in REDD + has been tremendous.

You can wave your hands and say some event in 1000 AD was «natural», only because we don't have all the data from that event — proxy data is a very vague, poor substitute for Argo armadas and satellite constellations and global Internet connecting thousands of instruments.