Sentences with phrase «of ozone data»

Methods used to classify sites as urban or non-urban and the length of ozone data records for monitoring sites are described in this section, along with regional aggregation and population characteristics.

The team used an atmospheric chemistry computer model called MOZART to analyze four years of ozone data collected between Japan and Antarctica.

Not exact matches

Marshalling convincing scientific data, they tell us that the environmental degradation caused by massive pollution of air water and land, threatens the very life of earth — fast depletion of non renewal resources, indeed of species themselves, the thinning of the ozone layer that exposes all living creatures to the danger of radiation, the build up of gases creating the greenhouse effect, increasing erosion by the sea — all these are brought out through their research.

In some parts of Asia, Africa and South America, the researchers identified data gaps which prevented them from characterizing ozone pollution exposure patterns.

«We created the largest database of surface ozone from hourly observations at more than 4,800 monitoring sites worldwide, and we're making these data freely available to anyone who wants to investigate the impact of ozone on human health, vegetation, and climate.»

Using a computer model that fused air pollution and atmospheric chemistry data, they estimated what annual average levels of ozone (a key smog ingredient) and fine particulates smaller than 2.5 microns (PM2.5) were in 2010 within 100 - km - by -100-km grid squares across the world.

This week, without fanfare, it also started tweeting hourly data on ground - level ozone, the prime component of smog.

Now, a team led by atmospheric scientist Richard McKenzie of the National Institute of Water and Atmospheric Research in Lauder, New Zealand, has come up with data that appear to clinch the connection between ozone and UV - B in the midlatitudes.

Data from observations in Japan itself show that the greatest loss of ozone — 4.5 per cent over the past 10 years — occurred over the city of Sapporo, which lies on the same latitude as Marseilles.

Its replacement is not due to come online until 2017, leaving a huge data gap at a time when the Arctic is warming faster than any other region and its ozone hole is approaching the size of the Antarctic's.

Detailed analysis of data from the World Meteorological Organization has confirmed record low levels of ozone in the northern hemisphere.

According to data from the U.S. Environmental Protection Agency (EPA), levels of all major air pollution contaminants (ozone, nitrogen oxides, carbon monoxide, sulfur dioxide, particulate matter and lead) are down significantly since 1970; carbon monoxide levels alone dropped by more than 70 percent.

«This is the only long - term data set with regular measurements of ozone - destroying compounds in the stratosphere,» says atmospheric chemist Darin Toohey of the University of California, Irvine.

My main problem with that study is that the weather models don't use any forcings at all — no changes in ozone, CO2, volcanos, aerosols, solar etc. — and so while some of the effects of the forcings might be captured (since the weather models assimilate satellite data etc.), there is no reason to think that they get all of the signal — particularly for near surface effects (tropospheric ozone for instance).

, there is a lot of interesting stuff going on in Antarctica: the complexities of different forcings (ozone in particular), the importance of dynamical as well as radiative processes, and the difficulties of dealing with very inhomogeneous and insufficiently long data series.

All reported metric values meet a data capture criterion of > 75 % (TOAR - Surface Ozone Database).

Anyone can use these data to do their own analysis and make their own maps and models of the ozone hole and how it's recovering.

The ozone measurements are really good, because the data our instrument collects contribute to creating maps of ozone cover over Antarctica.

The data showed that high traffic intensity, ozone exposure and 8 - iso concentration increased the risk of current asthma.

Amplification of the direct solar forcing is conceivable, e.g., through effects on ozone or atmospheric condensation nuclei, but empirical data place a factor of two upper limit on the amplification, with the most likely forcing in the range 100 — 120 % of the directly measured solar irradiance change [64].

Injections of ozone and oxygen can shrink a disc that's bulging out and putting pressure on surrounding nerves and tissue, according to Kieran Murphy, MD, who presented data on the technique at the Society of Interventional Radiology meeting in Chicago.

If I am foolish enough not to look at other relevant data that would affect the outcome of my assertion, then that is what I am, a fool, though Fred Singer would simply smile and say, no, «the world is flat»; «smoking is not bad for your health»; CFC's do not harm the ozone... you need to check the source and the history behind the source to get more perspective.

The processing of the Oct 1983 data was started in August 1984 by the Ozone Processing Team at Goddard Space Flight Center led by A. Fleig and including Donald Heath and P.K. Bhartia.

Meanwhile, some climate modellers are already using the SIM data to see whether that improves the model simulations of ozone and temperature responses in the stratosphere.

The images were produced by researchers at the University of Maryland, Baltimore County, who work in concert with others at the space agency's Goddard Space Flight Center to process data from ozone - monitoring instruments on the EOS - Aura satellite.

, there is a lot of interesting stuff going on in Antarctica: the complexities of different forcings (ozone in particular), the importance of dynamical as well as radiative processes, and the difficulties of dealing with very inhomogeneous and insufficiently long data series.

There have been many explanations put borth inlcluding deep ocean heating, ozone chemistry, volcanoes reducing incident energy, trade winds and, of course, Cowtan and Way along with this latest data set that shows the energy imbalance is still tracking CO2.

We will now be able to measure and track Sun - induced space weather as well as global climactic trends in ozone levels, aerosols, vegetation, volcanic ash, and Earth reflectivity, all in high resolution; just the kind of data our civilization needs to make informed cultural, political, and scientific decisions that affect our future.

Gavin has suggested that the mesosphere would also cool, and while I'm not familiar with the observational data, this result would not be inconsistent with the theorized mechanism, as well as the presence of ozone in the mesosphere.

This series of images shows the size and shape of the ozone hole each year from 1979 through 2017 (no data are available for 1995).

Much of data is contaminated; the ozone record is dominated by large, natural fluctuations on many time scales...»

Hubert, D., Lambert, J. - C., Verhoelst, T., Granville, J., Keppens, A., Baray, J. - L., Bourassa, A. E., Cortesi, U., Degenstein, D. A., Froidevaux, L., Godin - Beekmann, S., Hoppel, K. W., Johnson, B. J., Kyrölä, E., Leblanc, T., Lichtenberg, G., Marchand, M., McElroy, C. T., Murtagh, D., Nakane, H., Portafaix, T., Querel, R., Russell III, J. M., Salvador, J., Smit, H. G. J., Stebel, K., Steinbrecht, W., Strawbridge, K. B., Stübi, R., Swart, D. P. J., Taha, G., Tarasick, D. W., Thompson, A. M., Urban, J., van Gijsel, J. A. E., Van Malderen, R., von der Gathen, P., Walker, K. A., Wolfram, E., and Zawodny, J. M.: Ground - based assessment of the bias and long - term stability of 14 limb and occultation ozone profile data records, Atmos.

Using data on the productivity of agricultural workers, along with information about environmental conditions that come from the California air monitoring network, they analyze the relationship between ozone concentrations during the typical workday and farm worker productivity.

Ozone is one of the current WOUDC data classes and includes these data categories: total column ozone (two levels: daily and hourly values), lidar vertical profiles, ozonesonde vertical profiles, and Umkehr (two levels: N - value and C - Umkehr) vertical profOzone is one of the current WOUDC data classes and includes these data categories: total column ozone (two levels: daily and hourly values), lidar vertical profiles, ozonesonde vertical profiles, and Umkehr (two levels: N - value and C - Umkehr) vertical profozone (two levels: daily and hourly values), lidar vertical profiles, ozonesonde vertical profiles, and Umkehr (two levels: N - value and C - Umkehr) vertical profiles.

In addition to producing full, up - to - date and compelling views of our planet, the images taken by EPIC will provide scientists with valuable atmospheric data on the ozone, plant cover, aerosols and clouds.

Scientists then were denying or withholding publication of data from new sensors that did not fit the agenda of the man - caused ozone depletion scare.

The World Ozone and Ultraviolet Radiation Data Centre (WOUDC) is one of six World Data Centres which are part of the Global Atmosphere Watch programme of the World Meteorological Organization.

In the analysis, Dr. Hansen and his colleagues culled data and scientific papers on topics from rice production, which releases methane, to urban pollution, a source of ozone and sooty particles, to obtain detailed estimates of the rate of change in different greenhouse emissions.

The error bar on ECV total ozone data (δTOC) shall be assessed and expressed as the percent relative difference with respect to correlative measurements of reference.

To prepare the ground - based data set for trend analysis, we investigated the quality of the total ozone values of each station and instrument that deposited data at WOUDC for any time period after 1995.

The dependence of the ECV data quality on main measurement and retrieval parameters like the solar zenith angle, ozone column amount, latitude, and cloud parameters (fractional cloud cover, cloud top height and albedo, etc. as appropriate) shall be investigated.

The geographical distribution of ozone profile instruments having archived data to the WOUDC and NDACC DHF in the Envisat era is displayed in Figure 2, on top of an illustrative global field of total ozone.

Data sets suitable for the correlative analysis of CCI products are collected from the Data Host Facility (DHF) of the Network for the Detection of Atmospheric Composition Change (NDACC) and from the World Ozone and Ultraviolet Radiation Data Centre (WOUDC).

The geographical distribution of stratospheric ozone lidars having archived regularly data to the NDACC DHF in the Envisat era is displayed in Figure 2.

NOAA scientists will systematically analyze ozone trend data and interpret findings at a level of integration and understanding never before achieved.

NOAA scientists have a long history of scientific leadership in studies of Antarctic ozone, and NOAA satellite data will be important as new instrumentation (such as OMPS on NPOESS) becomes a cornerstone of the ozone monitoring system.

Geographical distribution of ground - based lidar and ozonesonde stations having archived regularly ozone profile data to the NDACC DHF and / or the WOUDC in the Envisat era.

Previous studies had determined that the general health of the ozone was improving, but none of the data clearly defined the condition of the Antarctic ozone hole.

The harmonization of the well - mixed GHGs (CO2, CH4, N2O, eight HFCs, three PFCs, SF6 and sixteen ozone depleting substances controlled under the Montreal Protocol) was based on historical emission and observed concentration data.

In order to better understand the causes of the Arctic's changing climate, the authors used observational data and nine CMIP5 global climate models to tease apart the effects of anthropogenic greenhouse gas emissions, natural forcings and other anthropogenic forcings (aerosols, ozone and land use changes).