Sentences with phrase «toar ozone monitoring»

The British Antarctic Survey (BAS) was looking at ways to economise, and axing ozone monitoring seemed unlikely to be a big loss.

First was an improvement in the computer processing that transforms raw satellite observations from the Dutch - Finnish Ozone Monitoring Instrument aboard NASA's Aura spacecraft into precise estimates of sulfur dioxide concentrations.

The other two maps are made with data from the Ozone Monitoring Instrument on the Aura satellite.

The satellite ozone data come from the Dutch - Finnish Ozone Monitoring Instrument on NASA's Aura satellite, launched in 2004, and the Ozone Monitoring and Profiler Suite instrument on the NASA - NOAA Suomi National Polar - orbiting Partnership satellite, launched in 2011.

The ozone data come from the Dutch - Finnish Ozone Monitoring Instrument on NASA's Aura satellite and the Ozone Monitoring and Profiler Suite instrument on the NASA - NOAA Suomi National Polar - orbiting Partnership satellite.

Other research efforts at Sondrestrom include advanced ozone monitoring and data mining.

An instrument called GOMOS — Global Ozone Monitoring by Occultation of Star — will look at a star through the atmosphere and measure how much of its light is absorbed by ozone.

Researchers have already tested the method using observations from GOSAT and the Global Ozone Monitoring Experiment 2 (GOME - 2) instrument aboard the European meteorological satellite MetOp - A — with surprising results.

In this section, we consider the population within a 5 km radius around a TOAR ozone monitoring station; hereafter referred to as the «monitored population», and estimate their exposure in terms of exceedances of one metric: NDGT60.

These five ozone metrics are calculated for all urban and non-urban ozone monitoring stations (section 4.2) available in the TOAR database, as present - day averages for 2010 — 2014 (section 5), as well as trends between 2000 — 2014 (section 6).

This shift, coupled with limited ozone monitoring in most developing nations, has left a number of fundamental outstanding questions: Which regions of the world have the greatest human and plant exposure to ozone pollution?

Alexander Mangold (Germany) of the Royal Meteorological Institute of Belgium, returns to Antarctica to continue his long - term monitoring of the chemical and particle composition of the Antarctic atmosphere, ozone monitoring and of UV radiation.

Among them will be a device called the Ozone Monitoring Instrument, or OMI (pronounced oh» - mee by project scientists).

The images show SO2 data from the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite.

The measurements were made from 1979 — 2003 by NASA's Total Ozone Mapping Spectrometer (TOMS) instruments, and from 2004 — present by the Royal Netherlands Meteorological Institute's Ozone Monitoring Instrument (OMI) that flies on NASA's Aura satellite.

North American, annual - mean OMI (Ozone Monitoring Instrument) tropospheric NO2 VCDs (vertical column density)(2005 — 2010) averaged onto a 0.25 ° x 0.25 ° grid.

Sources such as the Tropospheric Emission Spectrometer (TES), Ozone Monitoring Instrument (OMI), and Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on the Aura satellite, the Cloud - Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO), and the ground - based Aerosol Robotic Network (Aeronet) will be used, requiring the input of both the modeling and observational communities.

To identify spatial and temporal variations over the Iranian region, this study analyzed tropospheric formaldehyde (HCHO) and nitrogen dioxide (NO2) columns from Ozone Monitoring...

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.

NASA's A-train sensors such as the Ozone Monitoring Instrument (OMI) on the Aura satellite and the MODIS on Aqua offer capabilities to measure the total amounts of airborne particles.

It's sad that Rowland's death coincides with a time when Canada is making drastic cuts to their ozone monitoring program, following a year when the depletion of Arctic ozone is reportedly the largest it has ever been.

Dust - storm source areas determined by the Total Ozone Monitoring Spectrometer and surface observations

Not exact matches

Google cars equipped with Aclima's mobile sensing technology are able to monitor molecules that can negatively affect health and climate changes like nitric oxide, black carbon, methane, carbon dioxide, ozone and Volatile Organic Compounds.

For while NASA's satellites had been monitoring ozone levels around the world 24/7, Farman had found the hole with an ageing instrument wrapped in a quilt.

«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.»

So Weschler and Wisthaler simulated a typical office environment at the Technical University of Denmark in Copenhagen — two people in a carpeted 28.5 — cubic meter room at a temperature of 23 degrees Celsius with two small stainless steel tables, two chairs, two flat - screen LCD monitors, two headsets, one walkie - talkie, one small mixing fan, a few books, two laptops, two bottles of water and ozone concentrations that reached roughly 32 parts per billion, an average exposure for a hot, smoggy day.

They routinely monitor around 50 ozone - depleting chemicals in the atmosphere, some of which are now in decline as a direct consequence of the Montreal Protocol.

Satellites can continuously, online 24/7, monitor some compounds, such as CO2, ozone and aerosols, almost planet - wide.

In response to these cases and others, state and county health officials conducted a series of monitoring projects that found that gas drilling was the area's largest source of several hazardous air pollutants, including benzene and ozone - forming emissions.

As is common around the country, New York State's Department of Environmental Conservation routinely monitors the levels of ozone, carbon monoxide, sulfur dioxide, nitrogen oxides, and particulates in the air.

According to AEA Technology's National Environment Technology Centre in Abingdon, Oxfordshire — which monitors air pollution for the Department of the Environment — ozone pollution peaked in the summer heat waves of 1989 and 1990.

Even down on the Red Planet's surface, the Curiosity rover might be able to get in on the act: Because Mars's atmosphere has no ozone to block ultraviolet light, sensors on the rover will be able to detect those wavelengths and thereby monitor certain trace gases spewing from the comet — unless a dust storm blocks the view to space, Lemmon says.

The São Paulo State Environmental Corporation (CETESB), for example, routinely monitors only solid particles with diameters of 10,000 nm (PM10) and 2,500 nm (PM2.5)-- as well as other gaseous pollutants such as ozone (O3), carbon monoxide (CO) and nitrogen dioxide (NO2).

NOAA measurements at South Pole station monitor the ozone layer above that location by means of Dobson spectrophotometer and regular ozone - sonde balloon launches that record the thickness of the ozone layer and its vertical distribution.

Scientists from NASA and NOAA have been monitoring the ozone layer and the concentrations of ozone - depleting substances and their breakdown products from the ground and with a variety of instruments on satellites and balloons since the 1970s.

NASA and NOAA are mandated under the Clean Air Act to monitor ozone - depleting gases and stratospheric depletion of ozone.

Air monitoring by researchers in 2000 found levels of volatile organic compounds — highly reactive ozone precursors such as benzene, known as VOCs — were 10 to 100 times higher than what had previously been estimated.

The researchers compared results from a model called GFDL - AM3 to ozone measurements from monitoring stations over the course of the last 35 years, from 1980 to 2014.

The researchers behind the new study say that scientists must continue to monitor the situation to ensure all potential threats to the ozone layer are mitigated.

The ozone level was 12 per cent below normal, lower than at any time in the 35 years of continuous monitoring.

Two of the outdoor experiments on the HTV's first flight are a NASA ionospheric and thermospheric mapping device, and a JAXA system for monitoring the ozone layer's chemistry.

Also, the researchers referred to the US Environmental Protection Agency's Air Quality System which monitors air pollution levels at different sites across the US, and levels of ozone and fine particulate matter on a given day.

Scientists at NASA, the National Oceanic and Atmospheric Administration, as well as other international agencies constantly monitor the stratospheric ozone layer and the levels of ozone - depleting chemicals at Earth's surface.

The key studies for MARCI center on daily monitoring of dust storms, polar cloud formation, and variations in ozone content of the atmosphere.

The TOAR database contains the world's largest collection of ozone metrics, calculated consistently from hourly ozone observations at all available surface monitoring sites around the globe.

This assumes that ambient ozone concentrations measured at the monitor location are representative of population exposure (see e.g. Meng et al. 2012; US EPA 2013 for a discussion of the validity of this assumption).

For this analysis we utilize ozone metrics derived from over 4,800 monitoring sites worldwide (1,470 from North America, 1,935 from Europe, 1,239 from South, Southeast and East Asia, and 176 from other regions of the world).

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.

Pallas is one of the sites of the Finnish network for monitoring the concentrations of mercury and other heavy metals, benzo (a) pyrene, ozone and other air pollutants, as required by the European legislation on ambient air quality.

The Pallas research infrastructure has been extensively instrumented for modern and versatile monitoring of the environment since the start of continuous monitoring of atmospheric sulphur dioxide (SO2) and ozone (O3) concentrations at Sammaltunturi in September 1991, and with the setup of the Global Atmosphere Watch (GAW) station in 1994.