Variability of Water Vapor in the Tropical Middle Atmosphere Observed From Satellites and Interpreted Using SD‐WACCM Simulations
Variability of Water Vapor in the Tropical Middle Atmosphere Observed From Satellites and Interpreted Using SD‐WACCM Simulations
复制标题
从卫星观测到的热带中层大气中水蒸气的变化并使用 SD–WACCM 模拟进行解释
DOI:
10.1029/2022jd036714
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Mlynczak, Martin
中科院分区:
文献类型:
--
作者:
Yu, Wandi;Garcia, Rolando;Yue, Jia;Russell, James;Mlynczak, Martin
Water vapor in the middle atmosphere plays an essential role in global warming, ozone depletion, and the formation of polar stratospheric and mesospheric clouds. We show that tropical middle atmospheric water vapor simulated with the specified‐dynamics version of the Whole Atmosphere Community Climate Model (SD‐WACCM) is consistent with changes observed in a merged satellite data set, which encompasses the period 1993–2020. Consistent with previous work, we find no significant trend in the stratosphere in either the observations or the simulation; in the mesosphere, we find a long‐term trend of 0.1 ppmv per decade, but only in the observations. We also analyze an SD‐WACCM simulation for the longer period 1980–2019 to quantify the contribution of various factors to the decadal variation of middle atmospheric water vapor. Over 1980–1995, the simulated water vapor in the upper stratosphere and mesosphere, averaged zonally and over ±30° latitude, increases by 0.30 ppmv per decade due to increasing methane emissions. After 1995, a significant abrupt decrease of water vapor of 0.37 ppmv per decade and then a gradual increase of 0.33 ppmv per decade result from changes in stratospheric cold point temperature. The cold‐point temperature is strongly influenced by the strength of the Brewer‐Dobson circulation. The acceleration of the Brewer‐Dobson circulation before about 2003 leads to a cooler tropical tropopause and a decrease of water vapor, and the deceleration thereafter leads to corresponding warming of the tropopause and an increase in water vapor.
登录
查看更多内容
影响因子:
6.7
作者:
Fu, Qiang;Solomon, Susan;Lin, Pu
通讯作者:
Lin, Pu
影响因子:
8.9
作者:
Roderic L. Jones;J. Pyle;J. Harries;A. Zȧvody;J. Russell;J. Gille
通讯作者:
J. Gille
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
影响因子:
2.6
作者:
M. Santee;A. Lambert;W. G. Read;N. Livesey;R. Cofield;D. Cuddy;W. Daffer;B. Drouin;Froidevaux;R. Fuller;R. Jarnot;B. Knosp;G. Manney;V. Perun;W. V. Snyder;P. Stek;P. R;Thurstans;P. Wagner;J. W. Waters;G. Muscari;R. L. Zafra;J. Dibb;D. W. Fahey;P. Popp;P. T;Marcy;K. Jucks;G. Toon;R. Stachnik;P. Bernath;C. Boone;K. Walker
通讯作者:
K. Walker
影响因子:
--
作者:
M. Hegglin;A. Gettelman;P. Hoor;R. Krichevsky;G. Manney;L. Pan;S. Son;G. Stiller;S. Tilmes;K. Walker;V. Eyring;T. Shepherd;D. Waugh;H. Akiyoshi;J. A. Añel;J. Austin;A. Baumgaertner;S. Bekki;P. Braesicke;C. Brühl;N. Butchart;M. Chipperfield;M. Dameris;S. Dhomse;S. Frith;H. Garny;S. Hardiman;P. Jöckel;D. Kinnison;J. Lamarque;E. Mancini;M. Michou;O. Morgenstern;Tetsu Nakamura;D. Oliviè;S. Pawson;G. Pitari;D. Plummer;J. Pyle;E. Rozanov;J. Scinocca;K. Shibata;D. Smale;H. Teyssèdre;W. Tian;Y. Yamashita
通讯作者:
M. Hegglin;A. Gettelman;P. Hoor;R. Krichevsky;G. Manney;L. Pan;S. Son;G. Stiller;S. Tilmes;K. Walker;V. Eyring;T. Shepherd;D. Waugh;H. Akiyoshi;J. A. Añel;J. Austin;A. Baumgaertner;S. Bekki;P. Braesicke;C. Brühl;N. Butchart;M. Chipperfield;M. Dameris;S. Dhomse;S. Frith;H. Garny;S. Hardiman;P. Jöckel;D. Kinnison;J. Lamarque;E. Mancini;M. Michou;O. Morgenstern;Tetsu Nakamura;D. Oliviè;S. Pawson;G. Pitari;D. Plummer;J. Pyle;E. Rozanov;J. Scinocca;K. Shibata;D. Smale;H. Teyssèdre;W. Tian;Y. Yamashita