Sentences with phrase «vertical column density»

The average rate of increase during the period 1980 to 1998 determined from surface measurements was +0.8 ± 0.2 ppb / yr (+0.25 ± 0.05 % / yr) and is in reasonable agreement with measurements of the N2O vertical column density above Jungfraujoch Station, +0.36 ± 0.06 % / yr between 1984 and 1992 (Zander et al., 1994).

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.

Not exact matches

The resulting weaker density stratification allowed more vertical mixing of the water column during storms in late September and early October, leading to the observed warming of the near - bottom layer in the still ice - free Laptev Sea... Warmer water temperatures near the seabed may also impact the stability of the shelf's submarine permafrost.»