Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast
Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to Septe...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chowdary, Jasti S. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
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| Übergeordnetes Werk: |
Enthalten in: Climate dynamics - Berlin : Springer, 1986, 58(2021), 3-4 vom: 29. Aug., Seite 811-829 |
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| Übergeordnetes Werk: |
volume:58 ; year:2021 ; number:3-4 ; day:29 ; month:08 ; pages:811-829 |
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| DOI / URN: |
10.1007/s00382-021-05935-1 |
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| Katalog-ID: |
SPR046304991 |
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| 520 | |a Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. | ||
| 650 | 4 | |a The Asian jet |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Indian Summer Monsoon |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Tropical Easterly jet |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a East Asian monsoon |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Tropospheric temperature |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Vibhute, Amol S. |4 aut | |
| 700 | 1 | |a Darshana, Patekar |4 aut | |
| 700 | 1 | |a Parekh, Anant |4 aut | |
| 700 | 1 | |a Gnanaseelan, C. |4 aut | |
| 700 | 1 | |a Attada, Raju |4 aut | |
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10.1007/s00382-021-05935-1 doi (DE-627)SPR046304991 (SPR)s00382-021-05935-1-e DE-627 ger DE-627 rakwb eng Chowdary, Jasti S. verfasserin (orcid)0000-0003-4300-7715 aut Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. The Asian jet (dpeaa)DE-He213 Indian Summer Monsoon (dpeaa)DE-He213 Tropical Easterly jet (dpeaa)DE-He213 East Asian monsoon (dpeaa)DE-He213 Tropospheric temperature (dpeaa)DE-He213 Vibhute, Amol S. aut Darshana, Patekar aut Parekh, Anant aut Gnanaseelan, C. aut Attada, Raju aut Enthalten in Climate dynamics Berlin : Springer, 1986 58(2021), 3-4 vom: 29. Aug., Seite 811-829 (DE-627)268128561 (DE-600)1471747-5 1432-0894 nnns volume:58 year:2021 number:3-4 day:29 month:08 pages:811-829 https://dx.doi.org/10.1007/s00382-021-05935-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_612 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 58 2021 3-4 29 08 811-829 |
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10.1007/s00382-021-05935-1 doi (DE-627)SPR046304991 (SPR)s00382-021-05935-1-e DE-627 ger DE-627 rakwb eng Chowdary, Jasti S. verfasserin (orcid)0000-0003-4300-7715 aut Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. The Asian jet (dpeaa)DE-He213 Indian Summer Monsoon (dpeaa)DE-He213 Tropical Easterly jet (dpeaa)DE-He213 East Asian monsoon (dpeaa)DE-He213 Tropospheric temperature (dpeaa)DE-He213 Vibhute, Amol S. aut Darshana, Patekar aut Parekh, Anant aut Gnanaseelan, C. aut Attada, Raju aut Enthalten in Climate dynamics Berlin : Springer, 1986 58(2021), 3-4 vom: 29. Aug., Seite 811-829 (DE-627)268128561 (DE-600)1471747-5 1432-0894 nnns volume:58 year:2021 number:3-4 day:29 month:08 pages:811-829 https://dx.doi.org/10.1007/s00382-021-05935-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_612 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 58 2021 3-4 29 08 811-829 |
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10.1007/s00382-021-05935-1 doi (DE-627)SPR046304991 (SPR)s00382-021-05935-1-e DE-627 ger DE-627 rakwb eng Chowdary, Jasti S. verfasserin (orcid)0000-0003-4300-7715 aut Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. The Asian jet (dpeaa)DE-He213 Indian Summer Monsoon (dpeaa)DE-He213 Tropical Easterly jet (dpeaa)DE-He213 East Asian monsoon (dpeaa)DE-He213 Tropospheric temperature (dpeaa)DE-He213 Vibhute, Amol S. aut Darshana, Patekar aut Parekh, Anant aut Gnanaseelan, C. aut Attada, Raju aut Enthalten in Climate dynamics Berlin : Springer, 1986 58(2021), 3-4 vom: 29. Aug., Seite 811-829 (DE-627)268128561 (DE-600)1471747-5 1432-0894 nnns volume:58 year:2021 number:3-4 day:29 month:08 pages:811-829 https://dx.doi.org/10.1007/s00382-021-05935-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_612 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 58 2021 3-4 29 08 811-829 |
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10.1007/s00382-021-05935-1 doi (DE-627)SPR046304991 (SPR)s00382-021-05935-1-e DE-627 ger DE-627 rakwb eng Chowdary, Jasti S. verfasserin (orcid)0000-0003-4300-7715 aut Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. The Asian jet (dpeaa)DE-He213 Indian Summer Monsoon (dpeaa)DE-He213 Tropical Easterly jet (dpeaa)DE-He213 East Asian monsoon (dpeaa)DE-He213 Tropospheric temperature (dpeaa)DE-He213 Vibhute, Amol S. aut Darshana, Patekar aut Parekh, Anant aut Gnanaseelan, C. aut Attada, Raju aut Enthalten in Climate dynamics Berlin : Springer, 1986 58(2021), 3-4 vom: 29. Aug., Seite 811-829 (DE-627)268128561 (DE-600)1471747-5 1432-0894 nnns volume:58 year:2021 number:3-4 day:29 month:08 pages:811-829 https://dx.doi.org/10.1007/s00382-021-05935-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_612 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 58 2021 3-4 29 08 811-829 |
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10.1007/s00382-021-05935-1 doi (DE-627)SPR046304991 (SPR)s00382-021-05935-1-e DE-627 ger DE-627 rakwb eng Chowdary, Jasti S. verfasserin (orcid)0000-0003-4300-7715 aut Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. The Asian jet (dpeaa)DE-He213 Indian Summer Monsoon (dpeaa)DE-He213 Tropical Easterly jet (dpeaa)DE-He213 East Asian monsoon (dpeaa)DE-He213 Tropospheric temperature (dpeaa)DE-He213 Vibhute, Amol S. aut Darshana, Patekar aut Parekh, Anant aut Gnanaseelan, C. aut Attada, Raju aut Enthalten in Climate dynamics Berlin : Springer, 1986 58(2021), 3-4 vom: 29. Aug., Seite 811-829 (DE-627)268128561 (DE-600)1471747-5 1432-0894 nnns volume:58 year:2021 number:3-4 day:29 month:08 pages:811-829 https://dx.doi.org/10.1007/s00382-021-05935-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_612 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 58 2021 3-4 29 08 811-829 |
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Enthalten in Climate dynamics 58(2021), 3-4 vom: 29. Aug., Seite 811-829 volume:58 year:2021 number:3-4 day:29 month:08 pages:811-829 |
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Enthalten in Climate dynamics 58(2021), 3-4 vom: 29. Aug., Seite 811-829 volume:58 year:2021 number:3-4 day:29 month:08 pages:811-829 |
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Chowdary, Jasti S. @@aut@@ Vibhute, Amol S. @@aut@@ Darshana, Patekar @@aut@@ Parekh, Anant @@aut@@ Gnanaseelan, C. @@aut@@ Attada, Raju @@aut@@ |
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The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">The Asian jet</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Indian Summer Monsoon</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tropical Easterly jet</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">East Asian monsoon</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tropospheric temperature</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vibhute, Amol S.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Darshana, Patekar</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Parekh, Anant</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gnanaseelan, C.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Attada, Raju</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Climate dynamics</subfield><subfield code="d">Berlin : Springer, 1986</subfield><subfield code="g">58(2021), 3-4 vom: 29. Aug., Seite 811-829</subfield><subfield code="w">(DE-627)268128561</subfield><subfield code="w">(DE-600)1471747-5</subfield><subfield code="x">1432-0894</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:58</subfield><subfield code="g">year:2021</subfield><subfield code="g">number:3-4</subfield><subfield code="g">day:29</subfield><subfield code="g">month:08</subfield><subfield code="g">pages:811-829</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://dx.doi.org/10.1007/s00382-021-05935-1</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_SPRINGER</subfield></datafield><datafield 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Chowdary, Jasti S. |
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Chowdary, Jasti S. misc The Asian jet misc Indian Summer Monsoon misc Tropical Easterly jet misc East Asian monsoon misc Tropospheric temperature Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast |
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Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast The Asian jet (dpeaa)DE-He213 Indian Summer Monsoon (dpeaa)DE-He213 Tropical Easterly jet (dpeaa)DE-He213 East Asian monsoon (dpeaa)DE-He213 Tropospheric temperature (dpeaa)DE-He213 |
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meridional displacement of the asian jet and its impact on indian summer monsoon rainfall in observations and cfsv2 hindcast |
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Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast |
| abstract |
Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
| abstractGer |
Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
| abstract_unstemmed |
Abstract In this study the impact of meridional displacement of the Asian jet on the Indian summer monsoon (ISM) rainfall in observations and Climate Forecast System version 2 (CFSv2) hindcast is examined, for the period of 1985 to 2019. The observations show that during boreal summer (June to September), the leading mode of variability in the upper-tropospheric zonal wind anomalies along the Asian jet exhibits a north–south seesaw pattern on the interannual time scale. The strength of the meridional displacement/loading of the summer Asian jet is robust over the East Asian region in the observations, whereas in the case of CFSv2 the signals are strong both over the West and East Asian regions. The southward displacement of the Asian jet (SWDAJ) provoke reduced precipitation over the central and northern India regions in observation. This reduced rainfall over northern India is well captured by the model with slight overestimation of its strength. Physical mechanisms that link the SWDAJ and monsoon rainfall are unravelled in this study. It is found that SWDAJ weakens the upper level Tropical Easterly Jet over the Indian subcontinent and reinforces the lower level anticyclone thereby reducing the rainfall as evidenced in both observations and model. Southward gradients in the tropospheric temperature and low level moisture divergence also support the reduced rainfall over India. Observed precipitation enhancement in the Meiyu–Baiu rain band and the associated low level convergence are the characteristics of SWDAJ over East Asia, linked with divergence over India, which is completely absent in the model. Detailed analysis of individual summer months in the observations and model reveals that during early summer (June and July), the dominant meridional displacement of the Asian jet is located over the West and East Asian regions. These dominant anomalies are migrated eastward to the East Asian region by September in the observations, whereas persisted over both West Asia and East Asia regions in the model. In addition to this, meridional displacement of the Asian jet in the model is strongly influenced by the El Niño-Southern Oscillation (ENSO) predominantly in late monsoon season. This study suggests that the teleconnections of the Asian jet variability and ISM rainfall are over dependent on ENSO in the model, which might limit its prediction skill, not only over India but also for the entire Asian region. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
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Meridional displacement of the Asian jet and its impact on Indian summer monsoon rainfall in observations and CFSv2 hindcast |
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https://dx.doi.org/10.1007/s00382-021-05935-1 |
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Vibhute, Amol S. Darshana, Patekar Parekh, Anant Gnanaseelan, C. Attada, Raju |
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Vibhute, Amol S. Darshana, Patekar Parekh, Anant Gnanaseelan, C. Attada, Raju |
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| score |
7.4012938 |