Imprints of climate forcings in global gridded temperature data
Monthly near-surface temperature anomalies from several gridded data sets (GISTEMP, Berkeley Earth, MLOST, HadCRUT4, 20th Century Reanalysis) were investigated and compared with regard to the presence of components attributable to external climate forcings (associated with anthropogenic greenhouse g...
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Online Access: | https://doi.org/10.5194/esd-7-231-2016 http://hdl.handle.net/11104/0264394 |
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ftczacademyscien:oai:asep.lib.cas.cz:CavUnEpca/0465927 2024-02-04T10:02:46+01:00 Imprints of climate forcings in global gridded temperature data Mikšovský, J. (Jiří) Holtanová, E. Pišoft, P. 2016 https://doi.org/10.5194/esd-7-231-2016 http://hdl.handle.net/11104/0264394 eng eng doi:10.5194/esd-7-231-2016 urn:pissn: 2190-4979 urn:eissn: 2190-4987 http://hdl.handle.net/11104/0264394 atlantic multidecadal osciallation pacific decadal oscillation surface-temperature 20th century reanalysis southern-oscilation internal variability irradiance info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 ftczacademyscien https://doi.org/10.5194/esd-7-231-2016 2024-01-09T17:36:49Z Monthly near-surface temperature anomalies from several gridded data sets (GISTEMP, Berkeley Earth, MLOST, HadCRUT4, 20th Century Reanalysis) were investigated and compared with regard to the presence of components attributable to external climate forcings (associated with anthropogenic greenhouse gases, as well as solar and volcanic activity) and to major internal climate variability modes (El Nino/Southern Oscillation, North Atlantic Oscillation, Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation and variability characterized by the Trans-Polar Index). Multiple linear regression was used to separate components related to individual explanatory variables in local monthly temperatures as well as in their global means, over the 1901-2010 period. Strong correlations of temperature and anthropogenic forcing were confirmed for most of the globe, whereas only weaker and mostly statistically insignificant connections to solar activity were indicated. Imprints of volcanic forcing were found to be largely insignificant in the local temperatures, in contrast to the clear volcanic signature in their global averages. Attention was also paid to the manifestations of short-term time shifts in the responses to the forcings, and to differences in the spatial fingerprints detected from individual temperature data sets. It is shown that although the resemblance of the response patterns is usually strong, some regional contrasts appear. Noteworthy differences from the other data sets were found especially for the 20th Century Reanalysis, particularly for the components attributable to anthropogenic forcing over land, but also in the response to volcanism and in some of the teleconnection patterns related to the internal climate variability modes. Article in Journal/Newspaper North Atlantic North Atlantic oscillation The Czech Academy of Sciences: Publication Activity (ASEP) Pacific Earth System Dynamics 7 1 231 249 |
institution |
Open Polar |
collection |
The Czech Academy of Sciences: Publication Activity (ASEP) |
op_collection_id |
ftczacademyscien |
language |
English |
topic |
atlantic multidecadal osciallation pacific decadal oscillation surface-temperature 20th century reanalysis southern-oscilation internal variability irradiance |
spellingShingle |
atlantic multidecadal osciallation pacific decadal oscillation surface-temperature 20th century reanalysis southern-oscilation internal variability irradiance Mikšovský, J. (Jiří) Holtanová, E. Pišoft, P. Imprints of climate forcings in global gridded temperature data |
topic_facet |
atlantic multidecadal osciallation pacific decadal oscillation surface-temperature 20th century reanalysis southern-oscilation internal variability irradiance |
description |
Monthly near-surface temperature anomalies from several gridded data sets (GISTEMP, Berkeley Earth, MLOST, HadCRUT4, 20th Century Reanalysis) were investigated and compared with regard to the presence of components attributable to external climate forcings (associated with anthropogenic greenhouse gases, as well as solar and volcanic activity) and to major internal climate variability modes (El Nino/Southern Oscillation, North Atlantic Oscillation, Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation and variability characterized by the Trans-Polar Index). Multiple linear regression was used to separate components related to individual explanatory variables in local monthly temperatures as well as in their global means, over the 1901-2010 period. Strong correlations of temperature and anthropogenic forcing were confirmed for most of the globe, whereas only weaker and mostly statistically insignificant connections to solar activity were indicated. Imprints of volcanic forcing were found to be largely insignificant in the local temperatures, in contrast to the clear volcanic signature in their global averages. Attention was also paid to the manifestations of short-term time shifts in the responses to the forcings, and to differences in the spatial fingerprints detected from individual temperature data sets. It is shown that although the resemblance of the response patterns is usually strong, some regional contrasts appear. Noteworthy differences from the other data sets were found especially for the 20th Century Reanalysis, particularly for the components attributable to anthropogenic forcing over land, but also in the response to volcanism and in some of the teleconnection patterns related to the internal climate variability modes. |
format |
Article in Journal/Newspaper |
author |
Mikšovský, J. (Jiří) Holtanová, E. Pišoft, P. |
author_facet |
Mikšovský, J. (Jiří) Holtanová, E. Pišoft, P. |
author_sort |
Mikšovský, J. (Jiří) |
title |
Imprints of climate forcings in global gridded temperature data |
title_short |
Imprints of climate forcings in global gridded temperature data |
title_full |
Imprints of climate forcings in global gridded temperature data |
title_fullStr |
Imprints of climate forcings in global gridded temperature data |
title_full_unstemmed |
Imprints of climate forcings in global gridded temperature data |
title_sort |
imprints of climate forcings in global gridded temperature data |
publishDate |
2016 |
url |
https://doi.org/10.5194/esd-7-231-2016 http://hdl.handle.net/11104/0264394 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
doi:10.5194/esd-7-231-2016 urn:pissn: 2190-4979 urn:eissn: 2190-4987 http://hdl.handle.net/11104/0264394 |
op_doi |
https://doi.org/10.5194/esd-7-231-2016 |
container_title |
Earth System Dynamics |
container_volume |
7 |
container_issue |
1 |
container_start_page |
231 |
op_container_end_page |
249 |
_version_ |
1789969701810470912 |