Sentences with phrase «km altitude»

That 40 - 50 km altitude absorption is where the high energy UV - c is absorbed.

The graph below from the International Panel on Climate Change (IPCC) Fourth Assessment Report (4AR) shows the predicted tropical troposphere hot - spot at 8 to 12 km altitude as a distinctive red area.

Professor Chipperfield said: «Ozone depletion in the polar regions depends on meteorology, especially the occurrence of cold temperatures at about 20 km altitude — colder temperatures cause more loss.

(Bottom) Patterns of linear global temperature trends from 1979 to 2005 estimated at the surface (left), and for the troposphere (right) from the surface to about 10 km altitude, from satellite records.

Comment on # 2: The paper by Randall et al. (which is the basis for the comment by Nigel Allan) shows a 60 % depletion of ozone * at around 40 km altitude *.

But it is important to put the measured ozone losses at individual layers into some perspective: 19 - 20 km altitude is where the maximum ozone concentration is normally reached over the Arctic.

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.

Under extremely cold conditions, however, ice and supercooled liquid droplets (so - called Polar Stratospheric Clouds — PSCs) can form even at the low densities present in the lower stratosphere (~ 15 - 25 km altitude).

CTX was a new camera design; it acquires mono - and stereoscopic grayscale images at nearly MGS MOC resolution (6 m / pixel from 300 km altitude) over a much larger field - of - view (30 km).

The spectral resolution is T106 (about 190 km) and there are 31 vertical levels, with the model top at 10 hPa (about 31 km altitude).

The amount of wave energy that moves up from the troposphere into the lower stratosphere (roughly 17 to 30 km altitude) significantly affects the temperature, and therefore the ozone depletion, at these altitudes, where the bulk of the ozone layer is located.

Our investigations into the interannual variability of the ozone hole, using the GISS global climate / middle atmosphere model, indicate that it is strongly dependent upon the amount of planetary wave energy in the troposphere (the area from Earth's surface to approximately 17 km altitude).

This technical document presents a comprehensive assessment of the benefits that can be derived from practical measures to reduce black carbon — a principal soot component — as well as methane and other gases that contribute to the formation of ozone in the troposphere (ground level to about 10 - 15 km altitude).

Plot of the UAH - AMSU temperatures at the middle troposphere, 400 hPA (approx. 7.5 km altitude), from January 2002 to July 2017.

At a typical lapse rate of 6.5 deg C / km altitude, a difference of 60 - 110 m between the altitudes of modern samples and 13th century samples is pretty significant: 0.39 - 0.72 deg C., say 0.55 deg.

The chart's red column is the Venus atmosphere's temperature at the 10 km altitude.

The curve labelled 300 mb is at about 9 km altitude, which is in the middle of the predicted (but missing) tropical troposphere hot - spot.

Annual global mean vertical profile of organic carbon (OC) at ambient conditions, from the surface to 50 hPa (about 20 km altitude).

They are assumed to have an additional greenhouse effect causing a further increase of atmospheric temperatures near the ground and a decrease in the layers above approximately 15 km altitude.

Note that the * current * increasing greenhouse gas effect is mostly above the point at which 90 % of water vapour resides (< ~ 4 km altitude) so there's lots of that + CO2 at 4 km - ~ 16 km altitude to send some radiation back down.

The calculated temperatures that are most commonly cited — the lower troposphere or TLT data — sample a broad band from about 10 km altitude to just above the surface.

Stratosphere The highly stratified region of the atmosphere above the troposphere extending from about 10 km (ranging from 9 km at high latitudes to 16 km in the tropics on average) to about 50 km altitude.

Jim d «Where is it going, space» Do a search for CO2 increasing at 80, 90, and 100 km altitude.

Even greater cooling of 17 °C per decade has been observed high in the ionosphere, at 350 km altitude.