Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses
The time evolution of humidity and temperature above Dome C (Antarctica) has been investigated by considering data from (1) meteorological radiosondes (2005–2017), (2) the microwave radiometer HAMSTRAD (2012–2017), (3) four modern meteorological reanalyses (1980–2017) and (4) the southern annular mo...
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ftdoajarticles:oai:doaj.org/article:ddd1231664a642c693bff9e2f6beda21 2023-05-15T13:51:00+02:00 Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses Philippe Ricaud Paolo Grigioni Romain Roehrig Pierre Durand Dana E. Veron 2020-08-01T00:00:00Z https://doi.org/10.3390/atmos11080836 https://doaj.org/article/ddd1231664a642c693bff9e2f6beda21 EN eng MDPI AG https://www.mdpi.com/2073-4433/11/8/836 https://doaj.org/toc/2073-4433 doi:10.3390/atmos11080836 2073-4433 https://doaj.org/article/ddd1231664a642c693bff9e2f6beda21 Atmosphere, Vol 11, Iss 836, p 836 (2020) radiosondes microwave radiometer meteorological reanalyses precipitable water temperature SAM index Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.3390/atmos11080836 2022-12-31T13:59:28Z The time evolution of humidity and temperature above Dome C (Antarctica) has been investigated by considering data from (1) meteorological radiosondes (2005–2017), (2) the microwave radiometer HAMSTRAD (2012–2017), (3) four modern meteorological reanalyses (1980–2017) and (4) the southern annular mode (SAM) index (1980–2017). From these observations (2005–2017), a significant moistening trend (0.08 ± 0.06 kg m −2 dec −1 ) is associated with a significant warming trend (1.08 ± 0.55 K dec −1 ) in summer. Conversely, a significant drying trend of −0.04 ± 0.03 kg m −2 dec −1 (−0.05 ± 0.03 kg m −2 dec −1 ) is associated with a significant cooling trend of −2.4 ± 1.2 K dec −1 (−5.1 ± 2.0 K dec −1 ) in autumn (winter), with no significant trends in the spring. We demonstrate that 1) the trends identified in the radiosondes (2005–2017) are also present in the reanalyses and 2) the multidecadal variability of integrated water vapor and near-surface temperature (1980–2017) is strongly influenced by variability in the SAM index for all seasons but spring. Our study suggests that the decadal trends observed in humidity and near-surface temperature at Dome C (2005–2017) reflect the multidecadal variability of the atmosphere, and are not indicative of long-term trends that may be related to global climate change. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Atmosphere 11 8 836 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
radiosondes microwave radiometer meteorological reanalyses precipitable water temperature SAM index Meteorology. Climatology QC851-999 |
spellingShingle |
radiosondes microwave radiometer meteorological reanalyses precipitable water temperature SAM index Meteorology. Climatology QC851-999 Philippe Ricaud Paolo Grigioni Romain Roehrig Pierre Durand Dana E. Veron Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses |
topic_facet |
radiosondes microwave radiometer meteorological reanalyses precipitable water temperature SAM index Meteorology. Climatology QC851-999 |
description |
The time evolution of humidity and temperature above Dome C (Antarctica) has been investigated by considering data from (1) meteorological radiosondes (2005–2017), (2) the microwave radiometer HAMSTRAD (2012–2017), (3) four modern meteorological reanalyses (1980–2017) and (4) the southern annular mode (SAM) index (1980–2017). From these observations (2005–2017), a significant moistening trend (0.08 ± 0.06 kg m −2 dec −1 ) is associated with a significant warming trend (1.08 ± 0.55 K dec −1 ) in summer. Conversely, a significant drying trend of −0.04 ± 0.03 kg m −2 dec −1 (−0.05 ± 0.03 kg m −2 dec −1 ) is associated with a significant cooling trend of −2.4 ± 1.2 K dec −1 (−5.1 ± 2.0 K dec −1 ) in autumn (winter), with no significant trends in the spring. We demonstrate that 1) the trends identified in the radiosondes (2005–2017) are also present in the reanalyses and 2) the multidecadal variability of integrated water vapor and near-surface temperature (1980–2017) is strongly influenced by variability in the SAM index for all seasons but spring. Our study suggests that the decadal trends observed in humidity and near-surface temperature at Dome C (2005–2017) reflect the multidecadal variability of the atmosphere, and are not indicative of long-term trends that may be related to global climate change. |
format |
Article in Journal/Newspaper |
author |
Philippe Ricaud Paolo Grigioni Romain Roehrig Pierre Durand Dana E. Veron |
author_facet |
Philippe Ricaud Paolo Grigioni Romain Roehrig Pierre Durand Dana E. Veron |
author_sort |
Philippe Ricaud |
title |
Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses |
title_short |
Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses |
title_full |
Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses |
title_fullStr |
Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses |
title_full_unstemmed |
Trends in Atmospheric Humidity and Temperature above Dome C, Antarctica Evaluated from Observations and Reanalyses |
title_sort |
trends in atmospheric humidity and temperature above dome c, antarctica evaluated from observations and reanalyses |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/atmos11080836 https://doaj.org/article/ddd1231664a642c693bff9e2f6beda21 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Atmosphere, Vol 11, Iss 836, p 836 (2020) |
op_relation |
https://www.mdpi.com/2073-4433/11/8/836 https://doaj.org/toc/2073-4433 doi:10.3390/atmos11080836 2073-4433 https://doaj.org/article/ddd1231664a642c693bff9e2f6beda21 |
op_doi |
https://doi.org/10.3390/atmos11080836 |
container_title |
Atmosphere |
container_volume |
11 |
container_issue |
8 |
container_start_page |
836 |
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1766254558486462464 |