Simultaneous measurements of No and No2 in the stratosphere

The Role of NO and NO2 in the Chemistry of the Troposphere and Stratosphere

“…The CIX content of the stratosphere must be measured and more independent observations are clearly neces sary. There are now many measurements available of NX compounds (e.g., Ackerman et al 1975, Chaloner et al 1975, Drummond et al 1977, Goldman et al 1970, Harries 1978, Lazrus & Gandrud 1974, Loewenstein et al 1975, Mason & Horvath 1976, Murcray et al 1973, Patel et al 1974, Ridley et al 1973, 1975, Toth et al 1973. Although no dramatic disagreement exists here between observations and theoreti cal model results, agreement is also not sufficiently good (Harries 1978, Crutzen & Howard 1978.…”

Measurements of stratospheric HO2 and NO2 by matrix isolation and ESR spectroscopy

“…The present data can be compared to earlier measurements of NO2 in the stratosphere using infrared spectroscopy (Ackerman et al, 1973;Ackerman et al, 1975;Fontanella et al, 1975;Roscoe et al, 1981;Louisnard etal., 1983). These are also shown in Figure 4, with error bars omitted in the interest of clarity.…”

Balloon-borne measurements of NO2: can a comparison of remote techniques be made from the historic data?

“…The table lists the measurements grouped by technique. One might expect that instruments which use similar techniques should have similar sources of error, even if they are Ackerman et al, 1975Borghi et al, 1983Borghi etal., 1983Louisnard et al, 1983Louisnard et al, 1985Murcray et al, 1974Blatherwick et al, 1980 Drummond and Jarnot, 1978Roscoe et al, 1981Fischer et al, 1985Fischer et al, 1985Fischer et al, 1985Goldman et al, 1978Ogawa et al, 1981Pommereau, 1982Naudet et al, 1984Naudet et al, 1984Kerr and McElroy, 1976Kerr and McElroy, 1976Kerr et al, 1982Kerr et al, 1982Kerr et al, 1982McElroy, 1984Hastie et al, 1986McFarland et al, 1986McFarland et al, 1986McFarland et al, 1986Helten et al, 1984Helten et al, 1984Helten etal., 1984Helten et al, 1984 O = solar occultation SR = sunrise BIC1 = Sep/Oct 82, 32N, SS N = night E = thermal emission SS = sunset B1C2 = Jun 83, 32N, SS constructed and their data analysed at different laboratories. Briefly, these techniques and their better-known sources of error are: (a) infrared spectrometers which measure the atmosphere's absorption of sunlight during sunrise or sunset (occultation).…”