Transport and freeze‐drying in the tropical tropopause layer

By Eric J. Jensen, L. Pfister. 2004

263 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/0d219e9c5f5a0f1f481dd2f4ebc88c6fc7aa2411

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Citations in the corpus

Kelvin wave variability near the equatorial tropopause observed in GPS radio occultation measurements (2005, background): “Further characterization of these small-scale temperature variations near the tropopause is important, for example for understanding the details of dehydration and cirrus formation [ Jensen and Pfister, 2004; M. Niwano, Tenuous cloud in the tropical tropopause layer as observed by HALOE, submitted ”
The impact of cirrus clouds on tropical troposphere-to-stratosphere transport (2006, unknown): “The insights may be obtained from trajectory studies similar to that of Jensen and Pfister (2004) including cloud-radiation interactions.”
Internal gravity waves from atmospheric jets and fronts (2014, background): “Gravity waves contribute to temperature fluctuations that will affect the freeze-drying process [Potter and Holton, 1995; Jensen et al., 1996], but it is possible that it does not modify significantly the final water vapor mixing ratios [Jensen and Pfister, 2004].”
Mesoscale modeling of springtime Arctic mixed-phase stratiform clouds using a new two-moment bulk microphysics scheme (2005, background): “Subgrid vertical velocity due to turbulence is neglected since higher-frequency perturbations have little impact on ice nucleation (Jensen and Pfister 2004), although gravity wave perturbations may be important (Jensen et al. 2005).”
A microphysics guide to cirrus – Part 2: Climatologies of clouds and humidity from observations (2020, background): “The water amount passing the tropopause is set by the freeze-drying process associated with this transition (Jensen and Pfister, 2004) and is discussed to be as low as H2O saturation at the minimum temperature (e.g., Schiller et al., 2009). However, e.g., Rollins et al. (2016) showed for the ATTREX ”
Stratospheric water vapor predicted from the Lagrangian temperature history of air entering the stratosphere in the tropics (2005, unknown): “Second, in a detailed modeling study, Jensen and Pfister [2004] showed that sedimentation out of tropical cirrus clouds is usually an efficient process.”
Global distribution of convection penetrating the tropical tropopause (2005, background): “Some recent theoretical studies [Sherwood and Dessler, 2000; Dessler, 2002; Salby et al., 2003] and a modeling study [Jensen and Pfister, 2004] suggest that these clouds may have a major impact on the Tropical Tropopause Layer (TTL) water vapor budget.”
Unprecedented evidence for deep convection hydrating the tropical stratosphere (2008, background): “This hypothesis is supported by the distribution of high cirrus clouds [e.g., Wang et al., 1996] and water vapor [Read et al., 2004], by trajectory studies [Jensen and Pfister, 2004; Fueglistaler et al., 2005] and radiative calculation [Corti et al., 2006].”
Horizontal water vapor transport in the lower stratosphere from subtropics to high latitudes during boreal summer (2013, background): “Microphysical processes concerning nucleation and supersaturation, subgrid-scale temperature fluctuations as caused by gravity waves, and convection are important for understanding the details of dehydration [e.g., Jensen and Pfister, 2004].”
The Origin of High Ice Crystal Number Densities in Cirrus Clouds (2005, methodology): “…of small-scale temperature fluctuations for cirrus cloud formation; however, these studies were either restricted to using a simple linear nice(dT/dt) relationship (Kärcher and Ström 2003) or assumed fluctuations (Haag and Kärcher 2004) or were mainly model oriented (Jensen and Pfister 2004).”
Tropical troposphere‐to‐stratosphere transport inferred from trajectory calculations (2004, unknown): “However, a recent study by Jensen and Pfister [2004] with a comprehensive microphysical model showed that cloud microphysical processes may be of second-order importance compared to the effect Figure 2. Residence times in TTL for January/February 2001 (Figures 2a–2d) and July/August (Figures 2e–2h”
Tropical tropopause layer (2009, background): “…TTL [Wallace and Kousky, 1968] and affect tropopause height, temperature, cloud top height [Shimizu and Tsuda, 1997], cloud occurrence [Boehm and RG1004 Fueglistaler et al.: TROPICAL TROPOPAUSE LAYER 15 of 31 RG1004 Verlinde, 2000; Holton et al., 2001], and dehydration [Jensen and Pfister, 2004].”
Confronting the Challenge of Modeling Cloud and Precipitation Microphysics (2020, methodology): “13 of 68 three‐dimensional models were initially used to study ice clouds including contrails and gravity wave‐generated cirrus (Jensen & Pfister, 2004; Paoli et al., 2004; Shirgaonkar & Lele, 2006).”
Interannual changes of stratospheric water vapor and correlations with tropical tropopause temperatures (2004, result): “The observation that interannual changes in water vapor are closely linked to large-scale temperature variations near the tropopause is consistent with the idealized modeling studies of tropical dehydration of Holton and Gettelman (2001), Gettelman et al. (2002), and Jensen and Pfister (2004).”