Publication Abstracts

Perlwitz et al. 2017

Perlwitz, J., T. Knutson, J.P. Kossin, and A.N. LeGrande, 2017: Large-scale circulation and climate variability. In Climate Science Special Report: Fourth National Climate Assessment, Volume I. D.J. Wuebbles, D.W. Fahey, K.A. Hibbard, D.J. Dokken, B.C. Stewart, and T.K. Maycock, Eds., U.S. Global Change Research Program, pp. 161-184, doi:10.7930/J0RV0KVQ.

The tropics have expanded poleward by about 70 to 200 miles in each hemisphere over the period 1979-2009, with an accompanying shift of the subtropical dry zones, midlatitude jets, and storm tracks (medium to high confidence). Human activities have played a role in this change (medium confidence), although confidence is presently low regarding the magnitude of the human contribution relative to natural variability.

Recurring patterns of variability in large-scale atmospheric circulation (such as the North Atlantic Oscillation and Northern Annular Mode) and the atmosphere-ocean system (such as El Niño-Southern Oscillation) cause year-to-year variations in U.S. temperatures and precipitation (high confidence). Changes in the occurrence of these patterns or their properties have contributed to recent U.S. temperature and precipitation trends (medium confidence), although confidence is low regarding the size of the role of human activities in these changes.

Export citation: [ BibTeX ] [ RIS ]

BibTeX Citation

  author={Perlwitz, J. and Knutson, T. and Kossin, J. P. and LeGrande, A. N.},
  editor={Wuebbles, D. J. and Fahey, D. W. and Hibbard, K. A. and Dokken, D. J. and Stewart, B. C. and Maycock, T. K.},
  title={Large-scale circulation and climate variability},
  booktitle={Climate Science Special Report: Fourth National Climate Assessment, Volume I},
  publisher={U.S. Global Change Research Program},
  address={Washington, D.C.},

[ Close ]

RIS Citation

ID  - pe00700s
AU  - Perlwitz, J.
AU  - Knutson, T.
AU  - Kossin, J. P.
AU  - LeGrande, A. N.
ED  - Wuebbles, D. J.
ED  - Fahey, D. W.
ED  - Hibbard, K. A.
ED  - Dokken, D. J.
ED  - Stewart, B. C.
ED  - Maycock, T. K.
PY  - 2017
TI  - Large-scale circulation and climate variability
BT  - Climate Science Special Report: Fourth National Climate Assessment, Volume I
SP  - 161
EP  - 184
DO  - 10.7930/J0RV0KVQ
PB  - U.S. Global Change Research Program
CY  - Washington, D.C.
ER  -

[ Close ]

• Return to 2017 Publications

• Return to Publications Homepage