LOWER STRATOSPHERE
Retrieval of water vapor vertical distributions in the upper troposphere and the lower stratosphere from SCIAMACHY limb measurements
... Abstract. This study describes the retrieval of water va- por vertical distributions in the upper troposphere and lower stratosphere (UTLS) altitude range from space-borne ob- servations of the scattered ...
22
Is Antarctic climate most sensitive to ozone depletion in the middle or lower stratosphere?
... full stratosphere (as shown in Figure ...the stratosphere due to longwave radiation (Figure ...the stratosphere in ...Antarctic lower stratosphere in October and No- ...
6
Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability
... the lower stratosphere) and slight displacement of the polar vortex at high latitudes, which is highly dependent on the strength (Šácha et ...the stratosphere right before (after) ...
17
Radiative forcing since preindustrial times due to ozone change in the troposphere and the lower stratosphere
... the stratosphere, ozone depletion has occurred during the last few decades, primar- ily through catalytic cycles involving chlorine and bromine species, both of which have been enhanced by human activ- ity (WMO, ...
25
Pure rotational-Raman channels of the Esrange lidar for temperature and particle extinction measurements in the troposphere and lower stratosphere
... Abstract. The Department of Meteorology at Stockholm University operates the Esrange Rayleigh/Raman lidar at Es- range (68 ◦ N, 21 ◦ E) near the Swedish city of Kiruna. This paper describes the design and first ...
8
Two-dimensional performance of MIPAS observation modes in the upper-troposphere/lower-stratosphere
... The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) in its present configuration can measure the atmosphere with seven different observation modes. Two of them have been expressly designed to sound the ...
11
Variation of Zonal Winds in the Upper Troposphere and Lower Stratosphere in Association with Deficient and Excess Indian Summer Monsoon Scenario
... of lower stratosphere zonal wind anomaly minus the upper troposphere zonal wind ...and lower stratosphere with ISMR is significant at 95% ...possibly lower the tropopause, which ...
12
Radiative forcing in the 21st century due to ozone changes in the troposphere and the lower stratosphere
... the stratosphere. When changes in the lower stratosphere (up to 20 km altitude) are included, the radiative forcing due to ozone amounts to ...somewhat lower than the value obtained in the ...
21
The impact of recent changes in Asian anthropogenic emissions of SO₂ on sulfate loading in the upper troposphere and lower stratosphere and the associated radiative changes
... Sulfate aerosols also absorb infrared radiation thus causing heating locally and producing a cooling in the region below by solar dimming (Niemeier and Schmidt, 2017). Therefore, seasonally varying transport of sulfate ...
20
Improved GOMOS/Envisat ozone retrievals in the upper troposphere and the lower stratosphere
... The GOMOS ozone data are of high quality in the strato- sphere and the mesosphere, but the current operational re- trieval algorithm (IPF v6) is not optimized for retrievals in the upper troposphere–lower ...
16
Effects of ozone cooling in the tropical lower stratosphere and upper troposphere
... the cold-point tropopause, can be referred to Tropical Tropopause Layer (TTL) or the tropical sub-stratosphere [Folkins et al., 1999; Gettelman and Forster, 2002; Thuburn and Craig, 2000] and has many ...
6
Comparison of three retrievals of COSMIC GPS radio occultation results in the tropical upper troposphere and lower stratosphere
... the stratosphere up to a 30-km altitude, which is called ...and lower stratosphere (UTLS) over the tropics from October 1, 2011, to March 31, 2012, when radiosonde soundings were conducted as the ...
15
Evaluation of water vapour assimilation in the tropical upper troposphere and lower stratosphere by a chemical transport model
... Hegglin, M. I., Gettelman, A., Hoor, P., Krichevsky, R., Manney, G. L., Pan, L. L., Son, S.-W., Stiller, G., Tilmes, S., Walker, K. A., Eyring, V., Shepherd, T. G., Waugh, D., Akiyoshi, H., Añel, J. A., Austin, J., ...
19
Reaching the lower stratosphere: validating an extended vertical grid for COSMO
... The vertical grid for COSMO presented in this study seems a good alternative to the standard vertical layering of the COSMO-DE domain when focusing on the upper tropo- sphere and lower stratosphere in polar ...
17
A laser-induced fluorescence instrument for aircraft measurements of sulfur dioxide in the upper troposphere and lower stratosphere
... This was verified by saturating the detection system with fluorescent photons by sampling a flow containing ∼ 100 ppb of SO 2 at 35 hPa with 4 mW laser power (sensitivity ∼ 14.. 6) and o[r] ...
13
A new airborne laser-induced fluorescence instrument for in situ detection of formaldehyde throughout the troposphere and lower stratosphere
... The inset of Fig. 8 is a typical example of the signal mea- sured with zero air added to the calibration system. Zero air and ultra zero air have 20–50 pptv HCHO, but we can obtain lower values by passing the air ...
12
Interpreting SBUV smoothing errors: an example using the quasi-biennial oscillation
... The primary source of error in the SBUV retrieval algorithm, particularly in the troposphere and lower stratosphere, is the smoothing error due to the limited vertical resolution of the SBUV observing ...
11
On the regional and seasonal ozone depletion potential of chlorinated very short lived substances
... There is a strong linearity (|R| > 0.999) between stratospheric Cl from Cl-VSLS and the resulting global mean column ozone change (Dobson Units, DU), see Figure S6. For each Cl-VSLS considered, the linear ozone ...
22
Trajectory matching of ozonesondes and MOZAIC measurements in the UTLS – Part 1: Method description and application at Payerne, Switzerland
... troposphere/lower stratosphere (UTLS), we use three-dimensional forward and backward trajectories, driven by ERA-Interim wind fields to match and compare ozonesonde measurements at Payerne (Switzerland) ...
14
Radio occultation bending angle anomalies during tropical cyclones
... Abstract. The tropical deep convection affects the radia- tion balance of the atmosphere changing the water vapor mixing ratio and the temperature of the upper troposphere lower stratosphere. The aim of ...
8