Time-dependent upwelling in the tropical lower stratosphere estimated from the zonal-mean momentum budget

By William J. Randel, R. Garcia, Fei Wu. 2002

140 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/4cef44fe19e0b3a30ef95149bef9984d3186be17

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Citations in the corpus

Tropical tropopause layer (2009, background): “1) peaks at tropopause levels [Randel et al., 2002] (see also section 3.”
Decreases in stratospheric water vapor after 2001: Links to changes in the tropical tropopause and the Brewer‐Dobson circulation (2006, background): “Seasonal timescale increases in upwelling will result in largest temperature changes near and above the tropopause, in a region where the radiative relaxation timescale is long ( 16–20 km); such enhanced temperature response over this altitude range is the cause for the observed large annual cycle i”
A Large Annual Cycle in Ozone above the Tropical Tropopause Linked to the Brewer–Dobson Circulation (2007, background): “The approximate thermodynamic balance in this region, assuming a linear relaxational approximation for radiative heating, can be written as (Randel et al. 2002) T t w*S r T Te .”
Simulation of secular trends in the middle atmosphere, 1950–2003 (2007, methodology): “(a) Zonal mean water vapor trend 1992–2002 (percent per decade) calculated from the ensemble of WACCM3 realizations; (b) the trend (percent per year) calculated from HALOE observations (adapted from Randel et al. [2004b]).”
Dynamical response to the solar cycle (2002, background): “Thus an increase in radiative heating in the stratopause region creates secondary warming in the lower stratosphere where the radiative relaxation time is long [Randel et al., 2002].”
Thermal variability of the tropical tropopause region derived from GPS/MET observations (2003, background): “…occurs only over 16–22 km is explained quantitatively by the long radiative damping timescales in this region; the temperature response to the annual cycle in the upward Brewer-Dobson circulation is magnified in this region by radiative timescales of order 100 days [Randel et al., 2002].”