Ground‐based observations of stratospheric NO2 at high and midlatitudes in Europe after the Mount Pinatubo eruption

Roozendaël, Michel Van; Mazière, Martine De; Hermans, Christian; Simon, P. C.; Pommereau, J.-P.; Goutail, Florence; Tie, Xuexi; Brasseur, Guy; Granier, C.

doi:10.1029/97jd01098

Cited by 24 publications

(13 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The column displays an increase in the first years due to the recovery from stratosphere partial denoxification after the Mt. Pinatubo eruption in 1991, observed as a general feature in ground-based datasets (Johnston et al, 1992;Koike et al, 1993;Van Roozendael et al, 1997;Liley et al, 2000). However, other interannual variability can also be seen from the observational record.…”

Section: Interannual Variabilitymentioning

confidence: 87%

NO2 climatology in the northern subtropical region: diurnal, seasonal and interannual variability

Gil¹,

Yela²,

Gunn

et al. 2008

Atmos. Chem. Phys.

View full text Add to dashboard Cite

Abstract. Daily NO 2 vertical column density (VCD) has been routinely measured by zenith sky spectroscopy at the subtropical station of Izaña (28 • N, 16 • W) since 1993 in the framework of the Network for the Detection of Atmospheric Composition Change (NDACC). Based on 14 years of data the first low latitude NO 2 VCD climatology has been established and the main characteristics from short timescales of one day to interannual variability are presented. Instrumental descriptions and different sources of errors are described in detail. The observed diurnal cycle follows that expected by gas-phase NO x chemistry, as can be shown by the good agreement with a vertically integrated chemical box model, and is modulated by solar radiation. The seasonal evolution departs from the phase of the hours of daylight, indicating the signature of upper stratospheric temperature changes. From the data record (1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)) no significant long-term trends in NO 2 VCD can be inferred. Comparison of the groundbased data sets with nadir-viewing satellite spectrometers shows excellent agreement for SCIAMACHY with differences between both datasets of 1.1%. GOME displays unrealistic features with the largest discrepancies during summer. The ground-based data are compared with long-term output of the SLIMCAT 3-D chemical transport model (CTM). The basic model, forced by ECMWF (ERA-40) analyses, captures the observed NO 2 annual cycle but significantly underestimates the spring/summer maximum (by 12% at sunset and up to 25% at sunrise). In a model run which uses assimilation of satellite CH 4 profiles to constrain the model long-lived tracers the agreement is significantly improved. This improvement in modelled column NO 2 is due to better Correspondence to: M. Gil (gilm@inta.es) modelled NO y profiles and points to transport errors in the ECMWF ERA-40 reanalyses.

show abstract

Section: Interannual Variabilitymentioning

confidence: 87%

NO2 climatology in the northern subtropical region: diurnal, seasonal and interannual variability

Gil¹,

Yela²,

Gunn

et al. 2008

Atmos. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…A comparison of the simulated and observed changes of the vertical column HNO 3 and NO 2 amounts is presented in Figure 2 for three ground‐based measurement points: Lauder, New Zealand (45°S, 170°E), Jungfraujoch, Switzerland (46°N, 8°E), and Sondakyla, Finland (67°N, 27°E). The observational data have been taken, respectively, from the works of Koike et al [1994], Van Roozendael et al [1997], and De Mazière et al [1998]. Taking into account the rather high level of uncertainty in the estimated HNO 3 and NO 2 changes obtained from measurements, we can conclude that the agreement of the model results with the observations is reasonable.…”

Section: Chemical Composition Of the Stratospherementioning

confidence: 92%

“…Empty squares represent the observed HNO 3 changes obtained from the work of Koike et al [1994]. NO 2 changes obtained from the works of Koike et al [1994] and Van Roozendael et al [1997] are marked by asterisks and those from the work of De Mazière et al [1998] by diamonds. Error bars denote the estimated uncertainty of the measurements.…”

Section: Chemical Composition Of the Stratospherementioning

confidence: 99%

Climate/chemistry effects of the Pinatubo volcanic eruption simulated by the UIUC stratosphere/troposphere GCM with interactive photochemistry

et al. 2002

View full text Add to dashboard Cite

The influence of the sulfate aerosol formed following the massive Pinatubo volcanic eruption in June 1991 on the chemical composition, temperature, and dynamics of the atmosphere has been investigated with the University of Illinois at Urbana‐Champaign (UIUC) stratosphere–troposphere General Circulation Model (GCM) with interactive photochemistry (ST‐GCM/PC). Ensembles of five runs have been performed for the unperturbed (control) and perturbed (experiment) conditions. The simulated repartitioning within the chlorine and nitrogen groups, as well as the ozone changes, are in reasonable quantitative agreement with observations and theoretical expectations. The simulated ozone changes in the tropics reveal the ozone mixing ratio decreases below 28 km and increases in the stratosphere above this level. However, these changes are not statistically significant in the lowermost stratosphere. The simulated total ozone loss reached 15% over the northern middle and high latitudes in winter and early spring. However, the simulated changes are statistically significant only during early winter. The magnitude of the simulated total ozone depletion is generally less than that observed, but some members of the experiment ensemble are in better agreement with the observed ozone anomalies. The model simulates a pronounced stratospheric warming in the tropics, which exceeds the warming derived from observations by 1–2 K. The model matches well the intensification of the polar‐night jet (PNJ) in December 1991 and 1992, the statistically significant cooling of the lower stratosphere and warming of the surface air in boreal winter over the United States, northern Europe, and Russia, and the cooling over Greenland, Alaska, and Central Asia.

show abstract

“…The observed depletion of stratospheric NO 2 in both hemispheres during the years following the eruption (Johnston et al 1992;Van Roozendael et al 1997;Danilin et al 1999) provided evidence that the volcanic aerosol had enhanced the heterogeneous chemistry at all latitudes. Surprisingly, the observed ozone response to the volcanic perturbation was different between the NH and SH.…”

Section: Introductionmentioning

confidence: 93%

The Response of Ozone and Nitrogen Dioxide to the Eruption of Mt. Pinatubo at Southern and Northern Midlatitudes

Aquila

Oman

Stolarski

et al. 2013

Journal of the Atmospheric Sciences

129

View full text Add to dashboard Cite

Observations have shown that the mass of nitrogen dioxide decreased at both southern and northern midlatitudes in the year following the eruption of Mt. Pinatubo, indicating that the volcanic aerosol had enhanced nitrogen dioxide depletion via heterogeneous chemistry. In contrast, the observed ozone response showed a northern midlatitude decrease and a small southern midlatitude increase. Previous simulations that included an enhancement of heterogeneous chemistry by the volcanic aerosol but no other effect of this aerosol produce ozone decreases in both hemispheres, contrary to observations. The authors' simulations show that the heating due to the volcanic aerosol enhanced both the tropical upwelling and Southern Hemisphere extratropical downwelling. This enhanced extratropical downwelling, combined with the time of the eruption relative to the phase of the Brewer-Dobson circulation, increased Southern Hemisphere ozone via advection, counteracting the ozone depletion due to heterogeneous chemistry on the Pinatubo aerosol.

show abstract

Ground‐based observations of stratospheric NO₂ at high and midlatitudes in Europe after the Mount Pinatubo eruption

Cited by 24 publications

References 33 publications

NO<sub>2</sub> climatology in the northern subtropical region: diurnal, seasonal and interannual variability

NO<sub>2</sub> climatology in the northern subtropical region: diurnal, seasonal and interannual variability

Climate/chemistry effects of the Pinatubo volcanic eruption simulated by the UIUC stratosphere/troposphere GCM with interactive photochemistry

The Response of Ozone and Nitrogen Dioxide to the Eruption of Mt. Pinatubo at Southern and Northern Midlatitudes

Contact Info

Product

Resources

About

Ground‐based observations of stratospheric NO2 at high and midlatitudes in Europe after the Mount Pinatubo eruption

Cited by 24 publications

References 33 publications

NO&lt;sub&gt;2&lt;/sub&gt; climatology in the northern subtropical region: diurnal, seasonal and interannual variability

NO&lt;sub&gt;2&lt;/sub&gt; climatology in the northern subtropical region: diurnal, seasonal and interannual variability

Climate/chemistry effects of the Pinatubo volcanic eruption simulated by the UIUC stratosphere/troposphere GCM with interactive photochemistry

The Response of Ozone and Nitrogen Dioxide to the Eruption of Mt. Pinatubo at Southern and Northern Midlatitudes

Contact Info

Product

Resources

About

Ground‐based observations of stratospheric NO₂ at high and midlatitudes in Europe after the Mount Pinatubo eruption

NO<sub>2</sub> climatology in the northern subtropical region: diurnal, seasonal and interannual variability

NO<sub>2</sub> climatology in the northern subtropical region: diurnal, seasonal and interannual variability