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Solar cycle variations of stratospheric ozone and temperature in simulations of a coupled chemistry-climate model
Solar cycle stratospheric ozone coupled chemistry-climate model
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2008/12/4
The results from three 45-year simulations of a coupled chemistry climate model are analysed for solar cycle influences on ozone and temperature. The simulations include UV forcing at the top of the a...
Stratospheric dryness: model simulations and satellite observations
Stratospheric dryness model simulations satellite observations
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2008/12/3
The mechanisms responsible for the extreme dryness of the stratosphere have been debated for decades. A key difficulty has been the lack of comprehensive models which are able to reproduce the observa...
Retrieval of stratospheric aerosol size information from OSIRIS limb scattered sunlight spectra
stratospheric aerosol size OSIRIS scattered sunlight spectra
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2008/11/25
Recent work has shown that the retrieval of stratospheric aerosol vertical profiles is possible using limb scattered sunlight measurements at optical wavelengths. The aerosol number density profile is...
Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO2
mass-independent oxygen isotope anomaly stratospheric CO2
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2008/11/24
Stratospheric and upper tropospheric air samples were collected during 1994–2004 over Sanriku, Japan and in 1997 over Kiruna, Sweden. Using these archived air samples, we determined the triple oxygen-...
Assimilation of stratospheric and mesospheric temperatures from MLS and SABER into a global NWP model
K. W. Hoppel N. L. Baker L. Coy
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2008/11/24
The forecast model and three-dimensional variational data assimilation components of the Navy Operational Global Atmospheric Prediction System (NOGAPS) have each been extended into the upper stratosph...
Odin stratospheric proxy NOy measurements and climatology
Odin stratospheric proxy NOy climatology
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2008/11/21
Five years of OSIRIS (Optical Spectrograph and InfraRed Imager System) NO2 and SMR (Sub-millimetre and Millimetre Radiometer) HNO3 observations from the Odin satellite, combined with data from a photo...
Quantitative performance metrics for stratospheric-resolving chemistry-climate models
Quantitative performance metrics stratospheric-resolving chemistry-climate models
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2008/11/20
A set of performance metrics is applied to stratospheric-resolving chemistry-climate models (CCMs) to quantify their ability to reproduce key processes relevant for stratospheric ozone. The same metri...
Odin/OSIRIS observations of stratospheric NO3 through sunrise and sunset
Odin OSIRIS stratospheric NO3
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2008/11/20
The nitrate radical (NO3) has been detected in visible limb-scattered spectra measured by the Optical Spectrograph and InfraRed Imager System (OSIRIS) on-board the Odin satellite when observing at lar...
Statistical estimation of stratospheric particle size distribution by combining optical modelling and lidar scattering measurements
stratospheric particle optical modelling lidar scattering
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2008/11/19
A method for estimating the stratospheric particle size distribution from multiwavelength lidar measurements is presented. It is based on matching measured and model-simulated backscatter coefficients...
Model simulations of stratospheric ozone loss caused by enhanced mesospheric NOx during Arctic Winter 2003/2004
stratospheric ozone mesospheric NOx Arctic Winter
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2008/11/19
Satellite observations show that the enormous solar proton events (SPEs) in October–November 2003 had significant effects on the composition of the stratosphere and mesosphere in the polar regions. Af...
Validation of stratospheric water vapour measurements from the airborne microwave radiometer AMSOS
stratospheric water vapour airborne microwave radiometer AMS
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2008/11/11
We present the validation of a water vapour dataset obtained by the Airborne Microwave Stratospheric Observing System AMSOS, a passive microwave radiometer operating at 183 GHz. Vertical profiles are ...
Summertime stratospheric processes at northern mid-latitudes: comparisons between MANTRA balloon measurements and the Canadian Middle Atmosphere Model
northern mid-latitudes MANTRA balloon Canadian Middle Atmosphere Model
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2008/11/4
In this paper we report on a study conducted using the Middle Atmospheric Nitrogen TRend Assessment (MANTRA) balloon measurements of stratospheric constituents and temperature and the Canadian Middle ...
On the attribution of stratospheric ozone and temperature changes to changes in ozone-depleting substances and well-mixed greenhouse gases
stratospheric ozone ozone-depleting substances greenhouse gases
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2008/10/31
The vertical profile of global-mean stratospheric temperature changes has traditionally represented an important diagnostic for the attribution of the cooling effects of stratospheric ozone depletion ...
Trends and variability of midlatitude stratospheric water vapour deduced from the re-evaluated Boulder balloon series and HALOE
midlatitude stratospheric water vapour re-evaluated Boulder balloon series HALOE
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2008/10/31
This paper presents an updated trend analysis of water vapour in the lower midlatitude stratosphere from the Boulder balloon-borne NOAA frostpoint hygrometer measurements and from the Halogen Occulati...
SAGE II measurements of stratospheric aerosol properties at non-volcanic levels
SAGE II stratospheric aerosol property non-volcanic levels
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2008/10/30
Since 2000, stratospheric aerosol levels have been relatively stable and at the lowest levels observed in the historical record. Given the challenges of making satellite measurements of aerosol proper...