Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations
Temperature trends in the middle and upper stratosphere are evaluated using measurements from the Stratospheric Sounding Unit (SSU), combined with data from the Aura Microwave Limb Sounder (MLS) and Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER) instruments. Data from MLS and...
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American Meteorological Society
2016
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ftncar:oai:drupal-site.org:articles_18530 2023-09-05T13:14:52+02:00 Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations Randel, William (author) Smith, Anne (author) Wu, Fei (author) Zou, Cheng-zhi (author) Qian, Haifeng (author) 2016-07-01 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-960 https://doi.org/10.1175/JCLI-D-15-0629.1 en eng American Meteorological Society Journal of Climate articles:18530 ark:/85065/d7vt1tpf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-960 doi:10.1175/JCLI-D-15-0629.1 Copyright 2016 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work. Text article 2016 ftncar https://doi.org/10.1175/JCLI-D-15-0629.1 2023-08-14T18:43:27Z Temperature trends in the middle and upper stratosphere are evaluated using measurements from the Stratospheric Sounding Unit (SSU), combined with data from the Aura Microwave Limb Sounder (MLS) and Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER) instruments. Data from MLS and SABER are vertically integrated to approximate the SSU weighting functions and combined with SSU to provide a data record spanning 1979-2015. Vertical integrals are calculated using empirically derived Gaussian weighting functions, which provide improved agreement with high-latitude SSU measurements compared to previously derived weighting functions. These merged SSU data are used to evaluate decadal-scale trends, solar cycle variations, and volcanic effects from the lower to the upper stratosphere. Episodic warming is observed following the volcanic eruptions of El Chichón (1982) and Mt. Pinatubo (1991), focused in the tropics in the lower stratosphere and in high latitudes in the middle and upper stratosphere. Solar cycle variations are centered in the tropics, increasing in amplitude from the lower to the upper stratosphere. Linear trends over 1979-2015 show that cooling increases with altitude from the lower stratosphere (from ~-0.1 to -0.2 K decade-1) to the middle and upper stratosphere (from ~-0.5 to -0.6 K decade-1). Cooling in the middle and upper stratosphere is relatively uniform in latitudes north of about 30°S, but trends decrease to near zero over the Antarctic. Mid- and upper-stratospheric temperatures show larger cooling over the first half of the data record (1979-97) compared to the second half (1998-2015), reflecting differences in upper-stratospheric ozone trends between these periods. Article in Journal/Newspaper Antarc* Antarctic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic The Antarctic Journal of Climate 29 13 4843 4859 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Temperature trends in the middle and upper stratosphere are evaluated using measurements from the Stratospheric Sounding Unit (SSU), combined with data from the Aura Microwave Limb Sounder (MLS) and Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER) instruments. Data from MLS and SABER are vertically integrated to approximate the SSU weighting functions and combined with SSU to provide a data record spanning 1979-2015. Vertical integrals are calculated using empirically derived Gaussian weighting functions, which provide improved agreement with high-latitude SSU measurements compared to previously derived weighting functions. These merged SSU data are used to evaluate decadal-scale trends, solar cycle variations, and volcanic effects from the lower to the upper stratosphere. Episodic warming is observed following the volcanic eruptions of El Chichón (1982) and Mt. Pinatubo (1991), focused in the tropics in the lower stratosphere and in high latitudes in the middle and upper stratosphere. Solar cycle variations are centered in the tropics, increasing in amplitude from the lower to the upper stratosphere. Linear trends over 1979-2015 show that cooling increases with altitude from the lower stratosphere (from ~-0.1 to -0.2 K decade-1) to the middle and upper stratosphere (from ~-0.5 to -0.6 K decade-1). Cooling in the middle and upper stratosphere is relatively uniform in latitudes north of about 30°S, but trends decrease to near zero over the Antarctic. Mid- and upper-stratospheric temperatures show larger cooling over the first half of the data record (1979-97) compared to the second half (1998-2015), reflecting differences in upper-stratospheric ozone trends between these periods. |
author2 |
Randel, William (author) Smith, Anne (author) Wu, Fei (author) Zou, Cheng-zhi (author) Qian, Haifeng (author) |
format |
Article in Journal/Newspaper |
title |
Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations |
spellingShingle |
Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations |
title_short |
Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations |
title_full |
Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations |
title_fullStr |
Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations |
title_full_unstemmed |
Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS, and SABER satellite observations |
title_sort |
stratospheric temperature trends over 1979-2015 derived from combined ssu, mls, and saber satellite observations |
publisher |
American Meteorological Society |
publishDate |
2016 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-960 https://doi.org/10.1175/JCLI-D-15-0629.1 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Journal of Climate articles:18530 ark:/85065/d7vt1tpf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-960 doi:10.1175/JCLI-D-15-0629.1 |
op_rights |
Copyright 2016 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work. |
op_doi |
https://doi.org/10.1175/JCLI-D-15-0629.1 |
container_title |
Journal of Climate |
container_volume |
29 |
container_issue |
13 |
container_start_page |
4843 |
op_container_end_page |
4859 |
_version_ |
1776196761637879808 |