---
_id: '11434'
abstract:
- lang: eng
text: The Indian summer monsoon rainfall (ISMR) has been declining since the 1950s.
However, since 2002 it is reported to have revived. For these observed changes
in the ISMR, several explanations have been reported. Among these explanations,
however, the role of the eastern equatorial Indian Ocean (EEIO) is missing despite
being one of the warmest regions in the Indian Ocean, and monotonously warming.
A recent study reported that EEIO warming impacts the rainfall over northern India.
Here we report that warming in the EEIO weakens the low-level Indian summer monsoon
circulation and reduces ISMR. A warm EEIO drives easterly winds in the Indo–Pacific
sector as a Gill response. The warm EEIO also enhances nocturnal convection offshore
the western coast of Sumatra. The latent heating associated with the increased
convection augments the Gill response and the resultant circulation opposes the
monsoon low-level circulation and weakens the seasonal rainfall.
acknowledgement: This work was supported by the National Research Foundation of Korea
(NRF) grant funded by the Korea government (MSIT) (NRF-2018R1A5A1024958). Model
simulation and data transfer were supported by the National Supercomputing Center
with supercomputing resources including technical support (KSC-2019-CHA-0005), the
National Center for Meteorological Supercomputer of Korea Meteorological Administration,
and by the Korea Research Environment Open NETwork (KREONET), respectively. The
authors declare no conflicts of interest.
article_processing_charge: No
article_type: original
author:
- first_name: Bidyut B
full_name: Goswami, Bidyut B
id: 3a4ac09c-6d61-11ec-bf66-884cde66b64b
last_name: Goswami
citation:
ama: GOSWAMI BB. Role of the eastern equatorial Indian Ocean warming in the Indian
summer monsoon rainfall trend. Climate Dynamics. 2023;60:427-442. doi:10.1007/s00382-022-06337-7
apa: GOSWAMI, B. B. (2023). Role of the eastern equatorial Indian Ocean warming
in the Indian summer monsoon rainfall trend. Climate Dynamics. Springer
Nature. https://doi.org/10.1007/s00382-022-06337-7
chicago: GOSWAMI, BIDYUT B. “Role of the Eastern Equatorial Indian Ocean Warming
in the Indian Summer Monsoon Rainfall Trend.” Climate Dynamics. Springer
Nature, 2023. https://doi.org/10.1007/s00382-022-06337-7.
ieee: B. B. GOSWAMI, “Role of the eastern equatorial Indian Ocean warming in the
Indian summer monsoon rainfall trend,” Climate Dynamics, vol. 60. Springer
Nature, pp. 427–442, 2023.
ista: GOSWAMI BB. 2023. Role of the eastern equatorial Indian Ocean warming in the
Indian summer monsoon rainfall trend. Climate Dynamics. 60, 427–442.
mla: GOSWAMI, BIDYUT B. “Role of the Eastern Equatorial Indian Ocean Warming in
the Indian Summer Monsoon Rainfall Trend.” Climate Dynamics, vol. 60, Springer
Nature, 2023, pp. 427–42, doi:10.1007/s00382-022-06337-7.
short: B.B. GOSWAMI, Climate Dynamics 60 (2023) 427–442.
date_created: 2022-06-05T22:01:50Z
date_published: 2023-01-01T00:00:00Z
date_updated: 2023-06-28T11:49:58Z
day: '01'
department:
- _id: CaMu
doi: 10.1007/s00382-022-06337-7
external_id:
isi:
- '000803119400002'
intvolume: ' 60'
isi: 1
language:
- iso: eng
month: '01'
oa_version: None
page: 427-442
publication: Climate Dynamics
publication_identifier:
eissn:
- 1432-0894
issn:
- 0930-7575
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: ' https://doi.org/10.1007/s00382-022-06401-2'
scopus_import: '1'
status: public
title: Role of the eastern equatorial Indian Ocean warming in the Indian summer monsoon
rainfall trend
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 60
year: '2023'
...
---
_id: '14564'
abstract:
- lang: eng
text: Cumulus parameterization (CP) in state‐of‐the‐art global climate models is
based on the quasi‐equilibrium assumption (QEA), which views convection as the
action of an ensemble of cumulus clouds, in a state of equilibrium with respect
to a slowly varying atmospheric state. This view is not compatible with the organization
and dynamical interactions across multiple scales of cloud systems in the tropics
and progress in this research area was slow over decades despite the widely recognized
major shortcomings. Novel ideas on how to represent key physical processes of
moist convection‐large‐scale interaction to overcome the QEA have surged recently.
The stochastic multicloud model (SMCM) CP in particular mimics the dynamical interactions
of multiple cloud types that characterize organized tropical convection. Here,
the SMCM is used to modify the Zhang‐McFarlane (ZM) CP by changing the way in
which the bulk mass flux and bulk entrainment and detrainment rates are calculated.
This is done by introducing a stochastic ensemble of plumes characterized by randomly
varying detrainment level distributions based on the cloud area fraction of the
SMCM. The SMCM is here extended to include shallow cumulus clouds resulting in
a unified shallow‐deep CP. The new stochastic multicloud plume CP is validated
against the control ZM scheme in the context of the single column Community Climate
Model of the National Center for Atmospheric Research using data from both tropical
ocean and midlatitude land convection. Some key features of the SMCM CP such as
it capability to represent the tri‐modal nature of organized convection are emphasized.
acknowledgement: The research of B.K. is supported in part by a Discovery Grant from
the Natural Sciences and Engineering Research Council of Canada (RGPIN-04246-2020).
This research was conducted during the visits of P.M. Krishna to the Center for
Prototype Climate Models at NYU Abu Dhabi and University of Victoria from November
2018 to June 2019 and July 2019 and October 2019, respectively. The authors are
very grateful to the three anonymous reviewers who provided very thoughtful and
constructive comments during the review process that helped greatly improve and
shape the final version of the manuscript.
article_number: e2022MS003391
article_processing_charge: Yes
article_type: original
author:
- first_name: B.
full_name: Khouider, B.
last_name: Khouider
- first_name: BIDYUT B
full_name: GOSWAMI, BIDYUT B
id: 3a4ac09c-6d61-11ec-bf66-884cde66b64b
last_name: GOSWAMI
orcid: 0000-0001-8602-3083
- first_name: R.
full_name: Phani, R.
last_name: Phani
- first_name: A. J.
full_name: Majda, A. J.
last_name: Majda
citation:
ama: Khouider B, GOSWAMI BB, Phani R, Majda AJ. A shallow‐deep unified stochastic
mass flux cumulus parameterization in the single column community climate model.
Journal of Advances in Modeling Earth Systems. 2023;15(11). doi:10.1029/2022ms003391
apa: Khouider, B., GOSWAMI, B. B., Phani, R., & Majda, A. J. (2023). A shallow‐deep
unified stochastic mass flux cumulus parameterization in the single column community
climate model. Journal of Advances in Modeling Earth Systems. American
Geophysical Union. https://doi.org/10.1029/2022ms003391
chicago: Khouider, B., BIDYUT B GOSWAMI, R. Phani, and A. J. Majda. “A Shallow‐deep
Unified Stochastic Mass Flux Cumulus Parameterization in the Single Column Community
Climate Model.” Journal of Advances in Modeling Earth Systems. American
Geophysical Union, 2023. https://doi.org/10.1029/2022ms003391.
ieee: B. Khouider, B. B. GOSWAMI, R. Phani, and A. J. Majda, “A shallow‐deep unified
stochastic mass flux cumulus parameterization in the single column community climate
model,” Journal of Advances in Modeling Earth Systems, vol. 15, no. 11.
American Geophysical Union, 2023.
ista: Khouider B, GOSWAMI BB, Phani R, Majda AJ. 2023. A shallow‐deep unified stochastic
mass flux cumulus parameterization in the single column community climate model.
Journal of Advances in Modeling Earth Systems. 15(11), e2022MS003391.
mla: Khouider, B., et al. “A Shallow‐deep Unified Stochastic Mass Flux Cumulus Parameterization
in the Single Column Community Climate Model.” Journal of Advances in Modeling
Earth Systems, vol. 15, no. 11, e2022MS003391, American Geophysical Union,
2023, doi:10.1029/2022ms003391.
short: B. Khouider, B.B. GOSWAMI, R. Phani, A.J. Majda, Journal of Advances in Modeling
Earth Systems 15 (2023).
date_created: 2023-11-20T09:18:21Z
date_published: 2023-11-01T00:00:00Z
date_updated: 2023-11-28T12:04:42Z
day: '01'
ddc:
- '550'
department:
- _id: CaMu
doi: 10.1029/2022ms003391
file:
- access_level: open_access
checksum: e30329dd985559de0ddc7021ca7382b4
content_type: application/pdf
creator: dernst
date_created: 2023-11-20T11:29:16Z
date_updated: 2023-11-20T11:29:16Z
file_id: '14582'
file_name: 2023_JAMES_Khoulder.pdf
file_size: 6435697
relation: main_file
success: 1
file_date_updated: 2023-11-20T11:29:16Z
has_accepted_license: '1'
intvolume: ' 15'
issue: '11'
keyword:
- General Earth and Planetary Sciences
- Environmental Chemistry
- Global and Planetary Change
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
month: '11'
oa: 1
oa_version: Published Version
publication: Journal of Advances in Modeling Earth Systems
publication_identifier:
eissn:
- 1942-2466
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: A shallow‐deep unified stochastic mass flux cumulus parameterization in the
single column community climate model
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
short: CC BY-NC (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2023'
...
---
_id: '13256'
abstract:
- lang: eng
text: The El Niño-Southern Oscillation (ENSO) and the Indian summer monsoon (ISM,
or monsoon) are two giants of tropical climate. Here we assess the future evolution
of the ENSO-monsoon teleconnection in climate simulations with idealized forcing
of CO2 increment at a rate of 1% year-1 starting from a present-day condition
(367 p.p.m.) until quadrupling. We find a monotonous weakening of the ENSO-monsoon
teleconnection with the increase in CO2. Increased co-occurrences of El Niño and
positive Indian Ocean Dipoles (pIODs) in a warmer climate weaken the teleconnection.
Co-occurrences of El Niño and pIOD are attributable to mean sea surface temperature
(SST) warming that resembles a pIOD-type warming pattern in the Indian Ocean and
an El Niño-type warming in the Pacific. Since ENSO is a critical precursor of
the strength of the Indian monsoon, a weakening of this relation may mean a less
predictable Indian monsoon in a warmer climate.
acknowledgement: This work was supported by National Research Foundation of Korea
(NRF) grants funded by the Korean government (MSIT) (NRF-2018R1A5A1024958, RS-2023-00208000).
Model simulation and data transfer were supported by the National Supercomputing
Center with supercomputing resources including technical support (KSC-2019-CHA-0005),
the National Center for Meteorological Supercomputer of the Korea Meteorological
Administration (KMA), and by the Korea Research Environment Open NETwork (KREONET),
respectively. We sincerely thank Dr. Jongsoo Shin of Pohang University of Science
and Technology, Pohang, South Korea for the model simulations.
article_number: '82'
article_processing_charge: Yes
article_type: original
author:
- first_name: Bidyut B
full_name: Goswami, Bidyut B
id: 3a4ac09c-6d61-11ec-bf66-884cde66b64b
last_name: Goswami
- first_name: Soon Il
full_name: An, Soon Il
last_name: An
citation:
ama: GOSWAMI BB, An SI. An assessment of the ENSO-monsoon teleconnection in a warming
climate. npj Climate and Atmospheric Science. 2023;6. doi:10.1038/s41612-023-00411-5
apa: GOSWAMI, B. B., & An, S. I. (2023). An assessment of the ENSO-monsoon teleconnection
in a warming climate. Npj Climate and Atmospheric Science. Springer Nature.
https://doi.org/10.1038/s41612-023-00411-5
chicago: GOSWAMI, BIDYUT B, and Soon Il An. “An Assessment of the ENSO-Monsoon Teleconnection
in a Warming Climate.” Npj Climate and Atmospheric Science. Springer Nature,
2023. https://doi.org/10.1038/s41612-023-00411-5.
ieee: B. B. GOSWAMI and S. I. An, “An assessment of the ENSO-monsoon teleconnection
in a warming climate,” npj Climate and Atmospheric Science, vol. 6. Springer
Nature, 2023.
ista: GOSWAMI BB, An SI. 2023. An assessment of the ENSO-monsoon teleconnection
in a warming climate. npj Climate and Atmospheric Science. 6, 82.
mla: GOSWAMI, BIDYUT B., and Soon Il An. “An Assessment of the ENSO-Monsoon Teleconnection
in a Warming Climate.” Npj Climate and Atmospheric Science, vol. 6, 82,
Springer Nature, 2023, doi:10.1038/s41612-023-00411-5.
short: B.B. GOSWAMI, S.I. An, Npj Climate and Atmospheric Science 6 (2023).
date_created: 2023-07-23T22:01:10Z
date_published: 2023-07-08T00:00:00Z
date_updated: 2023-08-02T06:38:07Z
day: '08'
ddc:
- '550'
department:
- _id: CaMu
doi: 10.1038/s41612-023-00411-5
external_id:
isi:
- '001024920300002'
file:
- access_level: open_access
checksum: e9967d436a83b8ffcc6f58782e1f7500
content_type: application/pdf
creator: dernst
date_created: 2023-07-31T08:00:01Z
date_updated: 2023-07-31T08:00:01Z
file_id: '13326'
file_name: 2023_npjclimate_Goswami.pdf
file_size: 1750712
relation: main_file
success: 1
file_date_updated: 2023-07-31T08:00:01Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: npj Climate and Atmospheric Science
publication_identifier:
eissn:
- 2397-3722
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: An assessment of the ENSO-monsoon teleconnection in a warming climate
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 6
year: '2023'
...
---
_id: '12007'
abstract:
- lang: eng
text: The Tibetan plateau (TP) plays an important role in the Asian summer monsoon
(ASM) dynamics as a heat source during the pre-monsoon and monsoon seasons. A
significant contribution to the pre-monsoon TP heating comes from the sensible
heat flux (SHF), which depend on the surface properties. A glaciated surface would
have a different SHF compared to a non-glaciated surface. Therefore, the TP glaciers
potentially can also impact the hydrological cycle in the Asian continent by impacting
the ASM rainfall via its contribution to the total plateau heating. However, there
is no assessment of this putative link available. Here, we attempt to qualitatively
study the role of TP glaciers on ASM by analyzing the sensitivity of an atmospheric
model to the absence of TP glaciers. We find that the absence of the glaciers
is most felt in climatologically less snowy regions (which are mostly located
at the south-central boundary of the TP during the pre-monsoon season), which
leads to positive SHF anomalies. The resulting positive diabatic heating leads
to rising air in the eastern TP and sinking air in the western TP. This altered
circulation in turn leads to a positive SHF memory in the western TP, which persists
until the end of the monsoon season. The impact of SHF anomalies on diabatic heating
results in a large-scale subsidence over the ASM domain. The net result is a reduced
seasonal ASM rainfall. Given the relentless warming and the vulnerability of glaciers
to warming, this is another flag in the ASM variability and change that needs
further attention.
acknowledgement: This research is funded by the IRCC research funding.
article_number: '29'
article_processing_charge: No
article_type: original
author:
- first_name: BIDYUT B
full_name: GOSWAMI, BIDYUT B
id: 3a4ac09c-6d61-11ec-bf66-884cde66b64b
last_name: GOSWAMI
- first_name: Soon-Il
full_name: An, Soon-Il
last_name: An
- first_name: Raghu
full_name: Murtugudde, Raghu
last_name: Murtugudde
citation:
ama: GOSWAMI BB, An S-I, Murtugudde R. Role of the Tibetan plateau glaciers in the
Asian summer monsoon. Climatic Change. 2022;173(3-4). doi:10.1007/s10584-022-03426-8
apa: GOSWAMI, B. B., An, S.-I., & Murtugudde, R. (2022). Role of the Tibetan
plateau glaciers in the Asian summer monsoon. Climatic Change. Springer
Nature. https://doi.org/10.1007/s10584-022-03426-8
chicago: GOSWAMI, BIDYUT B, Soon-Il An, and Raghu Murtugudde. “Role of the Tibetan
Plateau Glaciers in the Asian Summer Monsoon.” Climatic Change. Springer
Nature, 2022. https://doi.org/10.1007/s10584-022-03426-8.
ieee: B. B. GOSWAMI, S.-I. An, and R. Murtugudde, “Role of the Tibetan plateau glaciers
in the Asian summer monsoon,” Climatic Change, vol. 173, no. 3–4. Springer
Nature, 2022.
ista: GOSWAMI BB, An S-I, Murtugudde R. 2022. Role of the Tibetan plateau glaciers
in the Asian summer monsoon. Climatic Change. 173(3–4), 29.
mla: GOSWAMI, BIDYUT B., et al. “Role of the Tibetan Plateau Glaciers in the Asian
Summer Monsoon.” Climatic Change, vol. 173, no. 3–4, 29, Springer Nature,
2022, doi:10.1007/s10584-022-03426-8.
short: B.B. GOSWAMI, S.-I. An, R. Murtugudde, Climatic Change 173 (2022).
date_created: 2022-09-03T07:24:13Z
date_published: 2022-08-30T00:00:00Z
date_updated: 2022-09-05T08:33:33Z
day: '30'
ddc:
- '550'
doi: 10.1007/s10584-022-03426-8
extern: '1'
file:
- access_level: open_access
checksum: 38071d5c142bb76f8c8665dc374838a8
content_type: application/pdf
creator: dernst
date_created: 2022-09-05T08:29:27Z
date_updated: 2022-09-05T08:29:27Z
file_id: '12021'
file_name: 2022_ClimateChange_Goswami.pdf
file_size: 1350575
relation: main_file
success: 1
file_date_updated: 2022-09-05T08:29:27Z
has_accepted_license: '1'
intvolume: ' 173'
issue: 3-4
keyword:
- Atmospheric Science
- Global and Planetary Change
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
publication: Climatic Change
publication_identifier:
issn:
- 0165-0009
- 1573-1480
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Role of the Tibetan plateau glaciers in the Asian summer monsoon
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 173
year: '2022'
...