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Title: Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season

Abstract

Abstract El Niño–Southern Oscillation (ENSO) modulates wet season (November–April) precipitation over Central Southwest Asia (CSWA), however, intraseasonal characteristics of its influence are largely unknown, which can be important for its subseasonal to seasonal hydroclimate predictability. Here we show that the ENSO‐CSWA teleconnection varies intraseasonally and is a combination of direct and indirect positive influences. The direct influence is through a Rossby wave‐like pattern in the tail months. The indirect influence is through an atmospheric dipole of diabatic heating anomalies in the tropical Indian Ocean (TIO) as a result of ENSO‐forced response, which also generates a Rossby wave‐like forcing and persists throughout the wet season. ENSO exerts its strongest influence when both direct and indirect modes are in phase, while the relationship breaks down when the two modes are out of phase. The atmospheric teleconnection through the atmospheric diabatic heating anomalies in the TIO is reproducible in numerical simulations.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [1]; ORCiD logo [2];  [3]
  1. Earth System Physics The Abdus Salam International Centre for Theoretical Physics (ICTP) Trieste Italy, Centre of Excellence for Climate Change Research (CECCR)/Department of Meteorology King Abdulaziz University Jeddah Saudi Arabia
  2. Computational Sciences and Engineering Division Oak Ridge National Laboratory Oak Ridge TN USA
  3. Centre of Excellence for Climate Change Research (CECCR)/Department of Meteorology King Abdulaziz University Jeddah Saudi Arabia
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE; US Air Force
OSTI Identifier:
1664622
Alternate Identifier(s):
OSTI ID: 1665993; OSTI ID: 1786848
Grant/Contract Number:  
AC05-00OR22725; DE‐AC05‐00OR22725
Resource Type:
Published Article
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Name: Geophysical Research Letters Journal Volume: 47 Journal Issue: 18; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Abid, Muhammad Adnan, Ashfaq, Moetasim, Kucharski, Fred, Evans, Katherine J., and Almazroui, Mansour. Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season. United States: N. p., 2020. Web. doi:10.1029/2020GL089308.
Abid, Muhammad Adnan, Ashfaq, Moetasim, Kucharski, Fred, Evans, Katherine J., & Almazroui, Mansour. Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season. United States. https://doi.org/10.1029/2020GL089308
Abid, Muhammad Adnan, Ashfaq, Moetasim, Kucharski, Fred, Evans, Katherine J., and Almazroui, Mansour. Mon . "Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season". United States. https://doi.org/10.1029/2020GL089308.
@article{osti_1664622,
title = {Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season},
author = {Abid, Muhammad Adnan and Ashfaq, Moetasim and Kucharski, Fred and Evans, Katherine J. and Almazroui, Mansour},
abstractNote = {Abstract El Niño–Southern Oscillation (ENSO) modulates wet season (November–April) precipitation over Central Southwest Asia (CSWA), however, intraseasonal characteristics of its influence are largely unknown, which can be important for its subseasonal to seasonal hydroclimate predictability. Here we show that the ENSO‐CSWA teleconnection varies intraseasonally and is a combination of direct and indirect positive influences. The direct influence is through a Rossby wave‐like pattern in the tail months. The indirect influence is through an atmospheric dipole of diabatic heating anomalies in the tropical Indian Ocean (TIO) as a result of ENSO‐forced response, which also generates a Rossby wave‐like forcing and persists throughout the wet season. ENSO exerts its strongest influence when both direct and indirect modes are in phase, while the relationship breaks down when the two modes are out of phase. The atmospheric teleconnection through the atmospheric diabatic heating anomalies in the TIO is reproducible in numerical simulations.},
doi = {10.1029/2020GL089308},
journal = {Geophysical Research Letters},
number = 18,
volume = 47,
place = {United States},
year = {2020},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1029/2020GL089308

Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1 Figure 1: (a–f) Regression of the monthly global precipitation anomalies onto the standardized CSWA precipitation index [45–80°E; 22–40°N] during the wet season (1981–2018; mm/day); (g–l) same as in (a)–(f) but for the 200‐hPa geopotential height (Z200) anomalies (m); (m–r) same as in (a)–(f) but for the velocity potential (CHI200) anomaliesmore » (106 m2/s). Purple contours represent statistical significance at 95% confidence level.« less

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Works referenced in this record:

Multidecadal Changes in the Relationship between ENSO and Wet-Season Precipitation in the Arabian Peninsula
journal, June 2015


Compound Drought and Heatwaves at a Global Scale: The Role of Natural Climate Variability‐Associated Synoptic Patterns and Land‐Surface Energy Budget Anomalies
journal, June 2020

  • Mukherjee, Sourav; Ashfaq, Moetasim; Mishra, Ashok Kumar
  • Journal of Geophysical Research: Atmospheres, Vol. 125, Issue 11
  • DOI: 10.1029/2019JD031943

Pantropical climate interactions
journal, February 2019


Middle East and Southwest Asia Daily Precipitation Characteristics Associated with the Madden–Julian Oscillation during Boreal Winter
journal, November 2018


How ENSO impacts precipitation in southwest central Asia: ENSO IMPACT ON SOUTHWEST CENTRAL ASIA
journal, August 2007


The influence of tropical forcing on extreme winter precipitation in the western Himalaya
journal, April 2016


Revisiting ENSO/Indian Ocean Dipole phase relationships
journal, March 2017

  • Stuecker, Malte F.; Timmermann, Axel; Jin, Fei‐Fei
  • Geophysical Research Letters, Vol. 44, Issue 5
  • DOI: 10.1002/2016GL072308

Why Is ENSO Influencing Northwest India Winter Precipitation in Recent Decades?
journal, April 2010


Western Disturbances: A review: WESTERN DISTURBANCE: A REVIEW
journal, May 2015

  • Dimri, A. P.; Niyogi, D.; Barros, A. P.
  • Reviews of Geophysics, Vol. 53, Issue 2
  • DOI: 10.1002/2014RG000460

The Global Precipitation Climatology Project (GPCP) Monthly Analysis (New Version 2.3) and a Review of 2017 Global Precipitation
journal, April 2018

  • Adler, Robert; Sapiano, Mathew; Huffman, George
  • Atmosphere, Vol. 9, Issue 4
  • DOI: 10.3390/atmos9040138

Effect of remote forcings on the winter precipitation of central southwest Asia part 1: observations
journal, July 2006


The evolution, seasonality and impacts of western disturbances: On Western Disturbances
journal, January 2018

  • Hunt, Kieran M. R.; Turner, Andrew G.; Shaffrey, Len C.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 144, Issue 710
  • DOI: 10.1002/qj.3200

The Forcing of Monthly Precipitation Variability over Southwest Asia during the Boreal Cold Season
journal, September 2015


Long-term ENSO relationship to precipitation and storm frequency over western Himalaya–Karakoram–Hindukush region during the winter season
journal, June 2019


Regional climate model simulation of winter climate over Central-Southwest Asia, with emphasis on NAO and ENSO effects
journal, January 2009

  • Syed, F. S.; Giorgi, F.; Pal, J. S.
  • International Journal of Climatology
  • DOI: 10.1002/joc.1887

Decadal interactions between the western tropical Pacific and the North Atlantic Oscillation
journal, November 2005


ENSO Indices Based on Patterns of Satellite-Derived Precipitation
journal, August 2000


Understanding and modelling extra-tropical teleconnections with the Indo-Pacific region during the northern winter
journal, March 2015

  • Molteni, Franco; Stockdale, Timothy N.; Vitart, Frédéric
  • Climate Dynamics, Vol. 45, Issue 11-12
  • DOI: 10.1007/s00382-015-2528-y

Influence of the state of the Indian Ocean Dipole on the following year’s El Niño
journal, February 2010

  • Izumo, Takeshi; Vialard, Jérôme; Lengaigne, Matthieu
  • Nature Geoscience, Vol. 3, Issue 3
  • DOI: 10.1038/ngeo760

Potential predictability of boreal winter precipitation over central-southwest Asia in the North American multi-model ensemble
journal, October 2019


Asian droughts in the last millennium: a search for robust impacts of Pacific Ocean surface temperature variabilities
journal, September 2017


Examining the wintertime response to tropical convection over the Indian Ocean by modifying convective heating in a full atmospheric model
journal, January 2007

  • Barlow, Mathew; Hoell, Andrew; Colby, Frank
  • Geophysical Research Letters, Vol. 34, Issue 19
  • DOI: 10.1029/2007GL030043

Interannual rainfall variability and ECMWF-Sys4-based predictability over the Arabian Peninsula winter monsoon region: Arabian Winter Rainfall Variability and Predictability
journal, September 2015

  • Abid, Muhammad Adnan; Kucharski, Fred; Almazroui, Mansour
  • Quarterly Journal of the Royal Meteorological Society, Vol. 142, Issue 694
  • DOI: 10.1002/qj.2648

Influence of Indian Ocean Dipole and Pacific recharge on following year’s El Niño: interdecadal robustness
journal, January 2013


Seasonal Prediction of Winter Precipitation Anomalies over Central Southwest Asia: A Canonical Correlation Analysis Approach
journal, January 2018


A dipole mode in the tropical Indian Ocean
journal, September 1999

  • Saji, N. H.; Goswami, B. N.; Vinayachandran, P. N.
  • Nature, Vol. 401, Issue 6751
  • DOI: 10.1038/43854

Intraseasonal and Seasonal-to-Interannual Indian Ocean Convection and Hemispheric Teleconnections
journal, October 2013


Progress in subseasonal to seasonal prediction through a joint weather and climate community effort
journal, March 2018

  • Mariotti, Annarita; Ruti, Paolo M.; Rixen, Michel
  • npj Climate and Atmospheric Science, Vol. 1, Issue 1
  • DOI: 10.1038/s41612-018-0014-z

Observations of the Madden Julian Oscillation during Indian Ocean Dipole events: IOD-MJO
journal, March 2013

  • Wilson, Earle A.; Gordon, Arnold L.; Kim, Daehyun
  • Journal of Geophysical Research: Atmospheres, Vol. 118, Issue 6
  • DOI: 10.1002/jgrd.50241

Drought in Central and Southwest Asia: La Niña, the Warm Pool, and Indian Ocean Precipitation
journal, April 2002


The NCEP/NCAR 40-Year Reanalysis Project
journal, March 1996


Seasonal precipitation forecast skill over Iran: SEASONAL PRECIPITATION FORECAST SKILL OVER IRAN
journal, September 2015

  • Shirvani, Amin; Landman, Willem A.
  • International Journal of Climatology, Vol. 36, Issue 4
  • DOI: 10.1002/joc.4467

On the Need of Intermediate Complexity General Circulation Models: A “SPEEDY” Example
journal, January 2013

  • Kucharski, Fred; Molteni, Franco; King, Martin P.
  • Bulletin of the American Meteorological Society, Vol. 94, Issue 1
  • DOI: 10.1175/BAMS-D-11-00238.1

Relationship between ENSO phases with Northwest India winter precipitation: ENSO PHASES AND NORTHWEST INDIA WINTER PRECIPITATION
journal, July 2012

  • Dimri, A. P.
  • International Journal of Climatology, Vol. 33, Issue 8
  • DOI: 10.1002/joc.3559

A Review of Drought in the Middle East and Southwest Asia
journal, December 2016


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.