Abstract
Causes of the global surface air temperature warming in the early half of the 20th century are examined using a climate model and an optimal detection/attribution methodology. While the anthropogenic response seems to be underestimated in our model, our previous study detected the influence due to natural external forcing, including the combined effects of solar irradiance changes and the recovery from large volcanic activity. We further partition the responses between these two natural external factors, detecting both the solar and the volcanic signal in the observed early warming. A diagnosis of the sensitivity to solar forcing and a volcanic super-eruption simulation suggest that our model possesses larger climate sensitivities to solar forcing and longer relaxation times to volcanic forcing responses.
| Original language | English |
|---|---|
| Article number | L09702 |
| Journal | Geophysical Research Letters |
| Volume | 33 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - May 16 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Earth and Planetary Sciences (miscellaneous)
Cite this
Influence of volcanic activity and changes in solar irradiance on surface air temperatures in the early twentieth century. / Shiogama, Hideo; Nagashima, Tatsuya; Yokohata, Tokuta; Crooks, Simon A.; Nozawa, Toru.
In: Geophysical Research Letters, Vol. 33, No. 9, L09702, 16.05.2006.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of volcanic activity and changes in solar irradiance on surface air temperatures in the early twentieth century
AU - Shiogama, Hideo
AU - Nagashima, Tatsuya
AU - Yokohata, Tokuta
AU - Crooks, Simon A.
AU - Nozawa, Toru
PY - 2006/5/16
Y1 - 2006/5/16
N2 - Causes of the global surface air temperature warming in the early half of the 20th century are examined using a climate model and an optimal detection/attribution methodology. While the anthropogenic response seems to be underestimated in our model, our previous study detected the influence due to natural external forcing, including the combined effects of solar irradiance changes and the recovery from large volcanic activity. We further partition the responses between these two natural external factors, detecting both the solar and the volcanic signal in the observed early warming. A diagnosis of the sensitivity to solar forcing and a volcanic super-eruption simulation suggest that our model possesses larger climate sensitivities to solar forcing and longer relaxation times to volcanic forcing responses.
AB - Causes of the global surface air temperature warming in the early half of the 20th century are examined using a climate model and an optimal detection/attribution methodology. While the anthropogenic response seems to be underestimated in our model, our previous study detected the influence due to natural external forcing, including the combined effects of solar irradiance changes and the recovery from large volcanic activity. We further partition the responses between these two natural external factors, detecting both the solar and the volcanic signal in the observed early warming. A diagnosis of the sensitivity to solar forcing and a volcanic super-eruption simulation suggest that our model possesses larger climate sensitivities to solar forcing and longer relaxation times to volcanic forcing responses.
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UR - http://www.scopus.com/inward/citedby.url?scp=33745699436&partnerID=8YFLogxK
U2 - 10.1029/2005GL025622
DO - 10.1029/2005GL025622
M3 - Article
AN - SCOPUS:33745699436
VL - 33
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 9
M1 - L09702
ER -