Skip to content

Research at St Andrews

Energetic constraints on the width of the intertropical convergence zone

Research output: Contribution to journalArticlepeer-review

DOI

Standard

Energetic constraints on the width of the intertropical convergence zone. / Byrne, Michael Patrick; Schneider, Tapio.

In: Journal of Climate, Vol. 29, No. 13, 07.2016, p. 4709-4721.

Research output: Contribution to journalArticlepeer-review

Harvard

Byrne, MP & Schneider, T 2016, 'Energetic constraints on the width of the intertropical convergence zone', Journal of Climate, vol. 29, no. 13, pp. 4709-4721. https://doi.org/10.1175/JCLI-D-15-0767.1

APA

Byrne, M. P., & Schneider, T. (2016). Energetic constraints on the width of the intertropical convergence zone. Journal of Climate, 29(13), 4709-4721. https://doi.org/10.1175/JCLI-D-15-0767.1

Vancouver

Byrne MP, Schneider T. Energetic constraints on the width of the intertropical convergence zone. Journal of Climate. 2016 Jul;29(13):4709-4721. https://doi.org/10.1175/JCLI-D-15-0767.1

Author

Byrne, Michael Patrick ; Schneider, Tapio. / Energetic constraints on the width of the intertropical convergence zone. In: Journal of Climate. 2016 ; Vol. 29, No. 13. pp. 4709-4721.

Bibtex - Download

@article{121cf462d15b47c99f84dbdd8cdaf35b,
title = "Energetic constraints on the width of the intertropical convergence zone",
abstract = "The intertropical convergence zone (ITCZ) has been the focus of considerable research in recent years, with much of this work concerned with how the latitude of maximum tropical precipitation responds to natural climate variability and to radiative forcing. The width of the ITCZ, however, has received little attention despite its importance for regional climate and for understanding the general circulation of the atmosphere. This paper investigates the ITCZ width in simulations with an idealized general circulation model over a wide range of climates. The ITCZ, defined as the tropical region where there is time-mean ascent, displays rich behavior as the climate varies, widening with warming in cool climates, narrowing in temperate climates, and maintaining a relatively constant width in hot climates. The mass and energy budgets of the Hadley circulation are used to derive expressions for the area of the ITCZ relative to the area of the neighboring descent region, and for the sensitivity of the ITCZ area to changes in climate. The ITCZ width depends primarily on four quantities: the net energy input to the tropical atmosphere, the advection of moist static energy by the Hadley circulation, the transport of moist static energy by transient eddies, and the gross moist stability. Different processes are important for the ITCZ width in different climates, with changes in gross moist stability generally having a weak influence relative to the other processes. The results are likely to be useful for analyzing the ITCZ width in complex climate models and for understanding past and future climate change in the tropics.",
keywords = "Geographic location/entity, Intertropical convergence zone, Circulation/dynamics, Atmospheric circulation, Hadley circulation, Physical meterology and climatology, Climate change, Energy budget/balance, Models and modeling, Climate models",
author = "Byrne, {Michael Patrick} and Tapio Schneider",
year = "2016",
month = jul,
doi = "10.1175/JCLI-D-15-0767.1",
language = "English",
volume = "29",
pages = "4709--4721",
journal = "Journal of Climate",
issn = "0894-8755",
publisher = "American Meteorological Society",
number = "13",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Energetic constraints on the width of the intertropical convergence zone

AU - Byrne, Michael Patrick

AU - Schneider, Tapio

PY - 2016/7

Y1 - 2016/7

N2 - The intertropical convergence zone (ITCZ) has been the focus of considerable research in recent years, with much of this work concerned with how the latitude of maximum tropical precipitation responds to natural climate variability and to radiative forcing. The width of the ITCZ, however, has received little attention despite its importance for regional climate and for understanding the general circulation of the atmosphere. This paper investigates the ITCZ width in simulations with an idealized general circulation model over a wide range of climates. The ITCZ, defined as the tropical region where there is time-mean ascent, displays rich behavior as the climate varies, widening with warming in cool climates, narrowing in temperate climates, and maintaining a relatively constant width in hot climates. The mass and energy budgets of the Hadley circulation are used to derive expressions for the area of the ITCZ relative to the area of the neighboring descent region, and for the sensitivity of the ITCZ area to changes in climate. The ITCZ width depends primarily on four quantities: the net energy input to the tropical atmosphere, the advection of moist static energy by the Hadley circulation, the transport of moist static energy by transient eddies, and the gross moist stability. Different processes are important for the ITCZ width in different climates, with changes in gross moist stability generally having a weak influence relative to the other processes. The results are likely to be useful for analyzing the ITCZ width in complex climate models and for understanding past and future climate change in the tropics.

AB - The intertropical convergence zone (ITCZ) has been the focus of considerable research in recent years, with much of this work concerned with how the latitude of maximum tropical precipitation responds to natural climate variability and to radiative forcing. The width of the ITCZ, however, has received little attention despite its importance for regional climate and for understanding the general circulation of the atmosphere. This paper investigates the ITCZ width in simulations with an idealized general circulation model over a wide range of climates. The ITCZ, defined as the tropical region where there is time-mean ascent, displays rich behavior as the climate varies, widening with warming in cool climates, narrowing in temperate climates, and maintaining a relatively constant width in hot climates. The mass and energy budgets of the Hadley circulation are used to derive expressions for the area of the ITCZ relative to the area of the neighboring descent region, and for the sensitivity of the ITCZ area to changes in climate. The ITCZ width depends primarily on four quantities: the net energy input to the tropical atmosphere, the advection of moist static energy by the Hadley circulation, the transport of moist static energy by transient eddies, and the gross moist stability. Different processes are important for the ITCZ width in different climates, with changes in gross moist stability generally having a weak influence relative to the other processes. The results are likely to be useful for analyzing the ITCZ width in complex climate models and for understanding past and future climate change in the tropics.

KW - Geographic location/entity

KW - Intertropical convergence zone

KW - Circulation/dynamics

KW - Atmospheric circulation

KW - Hadley circulation

KW - Physical meterology and climatology

KW - Climate change

KW - Energy budget/balance

KW - Models and modeling

KW - Climate models

U2 - 10.1175/JCLI-D-15-0767.1

DO - 10.1175/JCLI-D-15-0767.1

M3 - Article

VL - 29

SP - 4709

EP - 4721

JO - Journal of Climate

JF - Journal of Climate

SN - 0894-8755

IS - 13

ER -

Related by author

  1. Radiative effects of clouds and water vapor on an axisymmetric monsoon

    Byrne, M. P. & Zanna, L., 15 Oct 2020, In: Journal of Climate. 33, 20, p. 8789-8811

    Research output: Contribution to journalArticlepeer-review

  2. Monsoons Climate Change Assessment

    Wang, B., Biasutti, M., Byrne, M. P., Castro, C., Chang, C-P., Cook, K., Fu, R., Grimm, A. M., Ha, K-J., Hendon, H., Kitoh, A., Krishnan, R., Lee, J-Y., Li, J., Liu, J., Moise, A., Pascale, S., Roxy, M. K., Seth, A., Sui, C-H. & 5 others, Turner, A., Yang, S., Yun, K-S., Zhang, L. & Zhou, T., 6 May 2020, In: Bulletin of the American Meteorological Society. p. 1-60 60 p.

    Research output: Contribution to journalArticlepeer-review

  3. Advances in understanding large-scale responses of the water cycle to climate change

    Allan, R. P., Barlow, M., Byrne, M. P., Cherchi, A., Douville, H., Fowler, H. J., Gan, T. Y., Pendergrass, A. G., Rosenfeld, D., Swann, A. L. S., Wilcox, L. J. & Zolina, O., 4 Apr 2020, In: Annals of the New York Academy of Sciences. Early View, 27 p.

    Research output: Contribution to journalReview articlepeer-review

  4. Dynamics of ITCZ width: Ekman processes, non-Ekman processes, and links to sea surface temperature

    Byrne, M. P. & Thomas, R., Sep 2019, In: Journal of the Atmospheric Sciences. 76, 9, p. 2869-2884 16 p.

    Research output: Contribution to journalArticlepeer-review

  5. Controls on the width of tropical precipitation and its contraction under global warming

    Donohoe, A., Atwood, A. R. & Byrne, M. P., 29 Aug 2019, In: Geophysical Research Letters. Early View, 10 p.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Radiative effects of clouds and water vapor on an axisymmetric monsoon

    Byrne, M. P. & Zanna, L., 15 Oct 2020, In: Journal of Climate. 33, 20, p. 8789-8811

    Research output: Contribution to journalArticlepeer-review

  2. Effects of memory biases on variability of temperature reconstructions

    Lücke, L., Hegerl, G., Schurer, A. & Wilson, R., Dec 2019, In: Journal of Climate. 32, 24, p. 8713-8731

    Research output: Contribution to journalArticlepeer-review

  3. Atmospheric dynamics feedback: concept, simulations and climate implications

    Byrne, M. & Schneider, T., 26 Mar 2018, In: Journal of Climate. 31, 8, p. 3249-3264

    Research output: Contribution to journalArticlepeer-review

  4. Understanding decreases in land relative humidity with global warming: conceptual model and GCM simulations

    Byrne, M. P. & O'Gorman, P., 15 Dec 2016, In: Journal of Climate. 29, 24, p. 9045-9061 17 p.

    Research output: Contribution to journalArticlepeer-review

ID: 256498733

Top