Sentences with phrase «total ozone column»

The WOUDC archive contains total ozone column data mainly from Dobson and Brewer UV spectrophotometers as well as from M - 124 UV filter radiometers from the early fifties onwards.

Using the methodology described in great detail in that publication, 32 Brewer and 47 Dobson stations were considered as potentials for the comparisons with GOME, Sciamachy and GOME - 2 total ozone column data.

Archived total ozone column measurements from the World Meterological Organization (WMO)- Global Atmosphere Watch (GAW) network routinely deposited at the World Ozone and Ultraviolet Radiation Data Centre (WOUDC) in Toronto, Canada (http://www.woudc.org) are utilized for the ground - based measurements reference.

But what remains is that UVB levels at ground are a function of the total ozone column, and as that column remains very high, there is no need to panic on an hypothetical but inexistant UVB increase.

The data basis of observations are total ozone columns measurements from three satellite borne instruments: the European satellite sensors GOME (ERS - 2), SCIAMACHY (ENVISAT), and GOME - 2 (METOP - A) are combined and added up to a continuous time series starting in June 1995.

Not exact matches

E.g. in 1999/2000 about 30 % of the total column ozone was destroyed by anthropogenic chemical loss, which is considerably less than the maximum loss at 19 - 20 km altitude.

Total column ozone measurements.

That's the concept behind Dobson units for measuring total column ozone.

ozone, ozone depletion, dobson spectrophotometer, ozone ground stations, total column ozone, genera linear model, dummy coding, trend analysis, deseasonalized trends, antarctic ozone hole, hydrofluorocarbons, greenhouse gases, climate change, stratosphere, troposphere, atmospheric chemistry

The ozone datasets for total column ozone include total ozone and total ozone observations and the vertical ozone profile includes lidar, ozonesonde, Umkehr N - value and C - Umkehr.

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.

Current data categories for ozone are total column ozone, lidar, ozonesonde, Umkehr and ultraviolet radiation data categories are broadband, multiband and high resolution spectral.

The percentage of the total overhead ozone column destroyed is shown in Figure 2 for the years in our experiment with strongest and weakest wave energies.

In the worst years, two - thirds of the Arctic ozone column (the total amount of ozone between the ground and the top of the atmosphere) is destroyed in the most severely depleted regions.

Figure 2: Total column ozone loss relative to pre-ozone hole conditions in the 1970s in percent (left) and total number of molecules (right)(1 DU = 2.69 molecules / cm2) averaged over 2010 - 2019, during September for the Southern Hemisphere and March for the Northern HemispTotal column ozone loss relative to pre-ozone hole conditions in the 1970s in percent (left) and total number of molecules (right)(1 DU = 2.69 molecules / cm2) averaged over 2010 - 2019, during September for the Southern Hemisphere and March for the Northern Hemisptotal number of molecules (right)(1 DU = 2.69 molecules / cm2) averaged over 2010 - 2019, during September for the Southern Hemisphere and March for the Northern Hemisphere.

Ozone data set categories include total column ozone and vertical profile data from lidar measurements, ozonesonde flights, and the Umkehr technOzone data set categories include total column ozone and vertical profile data from lidar measurements, ozonesonde flights, and the Umkehr technozone and vertical profile data from lidar measurements, ozonesonde flights, and the Umkehr technique.

There is some consensus now that total column ozone varies significantly with the solar cycle, especially in the tropics.

Special output data products are prepared by the WOUDC to assist researchers and provide value added information; some of the data products include total column ozone time series graphs and near real - time ozone maps.

«If you look at the total atmospheric column, from your head on up to the top of the atmosphere, this solar proton event depleted less than one percent of the total ozone in the Northern Hemisphere,» Jackman said.

In terms of the springtime Antarctic total column ozone losses (ozone hole), the system has not recovered, but the rapid expansion of the pre-Montreal Protocol period has been reversed to modest declines.

It's measured in terms of the total ozone throughout a column of the atmosphere spanning from Earth's surface up to satellite height.

This year, she notes, total - column Arctic ozone values «were below 250 Dobson units for nearly a month — and reached 220 to 230 for about a week.»

Some participants noted that even though a descoped OMPS on NPOESS will continue total - column ozone measurements, the OMPS - Nadir sensor lacks the state - of - the - art capability for measuring other trace species and for high spatial resolution, both of which are essential for advancing atmospheric research in the future.

This mission is accomplished through long - term observations and intensive field programs that measure total column ozone, ozone vertical profiles (ozonesondes and umkehrs), ground level ozone, and water vapor vertical profiles in the upper troposphere and stratosphere.

Retrieved variables from CrIS and ATMS include temperature, moisture, and pressure profiles, surface emissivity and temperature, total - column ozone, and additional possible data products such as trace gases (CO, N2O, CH4, and CO2).