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Chakraborty, Arun
- A Brief Study of the Relationship Between Selected Geopotential Heights and Vertically Integrated Moisture Flux Divergence Over India
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Authors
Amarjeet
1,
Vineet Sharma
1,
Anil Kumar Gupta
2,
Arun Chakraborty
1,
Akshay Kumar Sagar
1,
Sakshi Sharma
1
Affiliations
1 Centre for Ocean, River, Atmosphere and Land Sciences (CORAL), Indian, Institute of Technology, Kharagpur, West Bengal, India – 721302., IN
2 Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur, West Bengal, India – 721302., IN
1 Centre for Ocean, River, Atmosphere and Land Sciences (CORAL), Indian, Institute of Technology, Kharagpur, West Bengal, India – 721302., IN
2 Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur, West Bengal, India – 721302., IN
Source
Journal of Environment and Sociobiology, Vol 19, No 2 (2022), Pagination: 193-202Abstract
In this study, an analysis of the relationship of 500, 700, and 850 hPa geopotential heights (GpH) with vertically integrated moisture flux divergence is examined for two selected sets of years named Dry and Wet. First, a comparison of the four different datasets, ERA-5, JRA-55, NCEP/NCAR, and MERRA-2, is done to look out for the variations and trends of geopotential SS heights from 1980-2021 and to select the best dataset for the whole analysis. Though all the datasets provide more or less the same variations and trends (except NCEP/NCAR), only ERA-5 is chosen on basis of high spatial resolution (0.25° × 0.25°) data. From the rainfall data, the dry and wet years are selected based on the Indian Meteorological Department (IMD) criteria. The variations of the standardized anomaly of different GpH are examined with the vertically integrated moisture flux divergence (VIMFD) in the selected dry and wet years. All the GpH are found to depict the condition of the less (more) trough (low-pressure area) over central India and the Bay of Bengal (BB), coinciding with the less (more) convergence of vertically integrated moisture flux (VIMF) in JJAS season of dry (wet) years.Keywords
Geopotential Heights (GpH), Vertically Integrated Moisture Flux Divergence (VIMFD), Dry and Wet Years.
References
- Ashok, K., Guan, Z. and Yamagata, T. 2001. Impact of the Indian Ocean dipole on the relationship between the Indian monsoon rainfall and ENSO. Geophys. Res. Lett., 28: 4499-4502.
- Christidis, N. and Stott, P. A. 2015. Changes in the geopotential height at 500 hPa under the influence of external climatic forcings. Geophys. Res. Lett., 42: 10,798-10,806.
- Ghosh, S., Luniya, V. and Gupta, A. 2009. Trend analysis of Indian summer monsoon rainfall at different spatial scales. Atmos. Sci. Lett., 10: 285-290.
- Gilbert, R. O. 1987. Statistical Methods for Environmental Pollution Monitoring. Van Nostrand Reinhold Company, Inc., New York, pp. i-ix +1-334.
- Global Modeling and Assimilation Office (GMAO) (2015), MERRA-2 inst M_3d_ana_ Np: 3d, Monthly mean, Instantaneous, Pressure-Level, Analysis, Analyzed Meteorological Fields V5.12.4. Goddard Earth Sciences Data and Information Services Center (GES DISC). DOI: 10.5067/V92O8XZ30XBI accessed on 23. 07. 2022.
- Hernandez, M., Ummenhofer, C. C. and Anchukaitis, K. J. 2015. Multi-scale drought and ocean-atmosphere variability in monsoon Asia. Environ. Res. Lett., 10: 074010. DOI: 10.1088/1748-9326-10/7/074010
- Hersbach, H., Bell, B., Berrisford, P., Biavati, G., Horányi, A., Muñoz Sabater, J., Nicolas, J., Peubey, C., Radu, R., Rozum, I., Schepers, D., Simmons, A., Soci, C., Dee, D., Thépaut, J-N. 2019. ERA5 monthly averaged data on pressure levels from 1940 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). 10.24381/cds.6860a573 accessed on 23-07-2022.
- Hu, Z. Z., Latif, M., Roeckner, E. and Bengtsson, L.2000. Intensified Asian summer monsoon and its variability in a coupled model forced by increasing greenhouse gas concentrations. Geophys. Res. Lett., 27: 2681-2684.
- Kalnay, E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, D., Gandin, L., Iredell, M., Saha, S., White, G., Woollen, J., Zhu, Y., Chelliah, M., Ebisuzaki, W., Higgins, W., Janowiak, J., Mo, K. C., Ropelewski, C., Wang, J., Leetmaa, A., Reynolds, R., Jenne, R. and Joseph, D. 1996. The NCEP/NCAR 40-year reanalysis project. Bull. Am. Meteorol. Soc., 77: 437-472.
- Kang, S. M., Polvani, L. M., Fyfe, J. C. and Sigmond, M. 2011. Impact of polar ozone depletion on subtropical precipitation. Science., 332: 951-954.
- Kishore, P., Jyothi, S., Basha, G., Rao, S. V. B., Rajeevan, M., Velicogna, I. and Sutterley, T. C. 2016. Precipitation climatology over India: validation with observations and reanalysis datasets and spatial trends. Clim. Dym., 46: 541-556.
- Kobayashi, S., Ota, Y., Harada, Y., Ebita, A., Moriya, M., Onoda, H., Onogi, K., Kamahori, H., Kobayashi, C., Endo, H., Miyaoka, K. and Takahashi, K. 2015. The JRA-55 reanalysis: general specifications and basic characteristics. J. Meterol. Soc. Japan, 93: 5-48.
- Mayer, J., Mayer, M. and Haimberger, L. 2021. Mass-consistent atmospheric energy and moisture budget monthly data from 1979 to present derived from ERA5 reanalysis. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). DOI: https://doi.org/10.24381/ cds.c2451f6b accessed on 23-07-2022.
- Meehl, G. A. 1994. Coupled land-ocean-atmosphere processes and South Asian monsoon variability. Science., 266: 263-267.
- Nair, P. J., Chakraborty, A., Varikoden, H., Francis, P. A. and Kuttippurath, J. 2018. The local and global climate forcings induced inhomogeneity of Indian rainfall. Sci. Rep., 8: 6026 (pp. 1-12). DOI: 10.1038/s41598-018-24021-x.
- Nazemosadat, M. J. and Cordery, I. 1997. The influence of geopotential heights on New South Wales rainfall. Meteorol. Atmos. Phys., 63: 179-193.
- Okoro, U. K., Chen, W. and Nath, D. 2019. Recent variations in geopotential height associated with West African monsoon variability. Meteorol. Atmos. Phys., 131: 553-565.
- Pai, D. S., Rajeevan, M., Sreejith, O. P., Mukhopadhyay, B. and Satbha, N. S. 2014. Development of a new high spatial resolution (0.25º× 0.25º) long period (1901-2010) daily gridded rainfall data set over India and its comparison with existing data sets over the region. Mausam, 65: 1-18.
- Pant, G. B. 2003. Long-term climate variability and change over monsoon Asia. J. Indian Geophys. Union, 7: 125-134.
- Saha, K. 1974. Some aspects of the Arabian Sea summer monsoon. Tellus, 26: 464-476.
- Saha, K. R. and Bavadekar, S. N. 1973. Water vapour budget and precipitation over the Arabian Sea during the northern summer. Q. J. R. Meteorol. Soc., 99: 273-278.
- Shirvani, A., Fadaei, A. S. and Landman, W. A. 2019. The linkage between geopotential height and monthly precipitation in Iran. Theor. Appl. Climatol., 136: 221-236.
- Shukla, R. P. and Huang, B. 2016. Interannual variability of the Indian summer monsoon associated with the air-sea feedback in the northern Indian Ocean. Clim. Dym., 46: 1977-1990.
- Thompson, D. W., Solomon, S., Kushner, P. J., England, M. H., Grise, K. M. and Karoly, D. J. 2011. Signatures of the Antarctic ozone hole in Southern Hemisphere surface climate change. Nat. Geosci., 4: 741-749.
- Türkeş, M. 1998. Influence of geopotential heights, cyclone frequency and southern oscillation on rainfall variations in Turkey. Int. J. Climatol., 18: 649-680.
- Ullah, K. and Gao, S. 2012. Moisture transport over the Arabian Sea associated with summer rainfall over Pakistan in 1994 and 2002. Adv. Atmos. Sci., 29: 501-508.
- Webster, P. J. 1994. The role of hydrological processes in ocean-atmosphere interactions. Rev. Geophys., 32: 427-476.
- Zeng, X. M., Wang, B., Zhang, Y., Zheng, Y., Wang, N., Wang, M., Yi, C., Chen, C., Zhou, Z. and Liu, H. and Liu, H. 2016. Effects of land surface schemes on WRF-simulated geopotential heights over China in summer 2003. J. Hydrometeorol., 17: 829-851.
- Evolution in Relationship Between Mascarene Highs and Indian Summer Monsoon In Recent Times
Abstract Views :152 |
PDF Views:0
Authors
Vineet Sharma
1,
Amarjeet
1,
Arun Chakraborty
1,
Abhishek Kumar
1,
Biplab Sadhukhan
1,
Swarnali Dhar
1
Affiliations
1 Centre for Ocean, River, Atmosphere & Land Sciences (CORAL), IIT Kharagpur, West Bengal, India., IN
1 Centre for Ocean, River, Atmosphere & Land Sciences (CORAL), IIT Kharagpur, West Bengal, India., IN
Source
Journal of Environment and Sociobiology, Vol 19, No 2 (2022), Pagination: 283-293Abstract
Mascarene Highs (MH) is an important semi-permanent feature of Indian summer Monsoon(ISM). It is a subtropical anticyclonic feature located in the Southern Indian Ocean. The relationship between ISMR and Mascarenes highs is quite complex and is attributed to thermal and pressure gradients developed between the two regions (particularly during JJAS season) developed due to differential heating of land and water in the two regions. Global warming hiatus (comparative cooling of ocean waters in western Pacific) post 1998 have led to redistribution of thermal energy across the Indonesian through flow to the Indian ocean as a result the region has experienced rising SSTs. Declining Mean Sea Level Pressure (MSLP), rising SST and latitudinal and longitudinal shifts in the mean annual location of the centre of MH have led to reconfiguration of the relationship of Mascarene High with Indian Summer Monsoon. This changing relationship may be considered as one of many factors controlling recent revival/strengthening of Indian Summer Monsoon in recent times.Keywords
Mascarene Highs (MH), Anticyclone, Global Warming Hiatus, Indian Summer Monsoon (ISM).References
- Arora, A., Rao, S. A., Chattopadhyay, R., Goswami, T., George, G. and Sabeerali, C. T. 2016. Role of Indian Ocean SST variability on the recent global warming hiatus. Glob. Planet Change., 143: 21-30.
- Ashok, K., Guan, Z., Saji, N. H. and Yamagata, T. 2004. Individual and combined influences of ENSO and the Indian Ocean dipole on the Indian summer monsoon. J. Clim., 17(16): 3141-3155..
- Behera, S. K., Luo, J. J., Masson, S., Delecluse, P., Gualdi, S., Navarra, A. and Yamagata, T. 2005. Paramount impact of the Indian Ocean dipole on the East African short rains: A CGCM study. J. Clim., 18(21): 4514-4530.
- Bhalme, H. N. and Mooley, D. A. 1980. Large-scale droughts/floods and monsoon circulation. Mon. Weather Rev., 108(8): 1197-1211.
- Clemens, S. C. and Prell, W. L. 2007. The timing of orbital-scale Indian monsoon changes. Quat. Sci. Rev., 26(3-4): 275-278.
- Dash, S. K., Parth Sarthi, P. and Shekhar, M. S. 2008. Influence of Eurasian and Tibetan snow on Indian Summer Monsoon. In: P. N. Vinayachandran (ed.), Understanding and Forecasting of Monsoons, pp. 108-118. NAM S & T Centre.
- Dong, L. and McPhaden, M. J. 2016. Interhemispheric SST gradient trends in the Indian Ocean prior to and during the recent global warming hiatus. J. Clim., 29(24): 9077-9095.
- Gadgil, S. and Joseph, P. V. 2003. On breaks of the Indian monsoon. J. Earth Syst. Sci., 112(4): 529-558.
- Ghanekar, S. P., Bansod, S. D., Narkhedkar, S. G. and Kulkarni, A. 2019. Variability of Indian summer monsoon onset over Kerala during 1971– 2018. Theor. Appl. Climatol., 138(1): 729-742.
- Gupta, A. K., Prakasam, M., Dutt, S., Clift, P. D. and Yadav, R. R. 2020. Evolution and development of the Indian Monsoon. In: N. Gupta and S. Tandon (eds.), Geodynamics of the Indian Plate. Springer Geology. Springer, Cham, pp. 499-535.
- Hersbach, H., Bell, B., Berrisford, P., Bivavati, G., Dee, D., Horányi, A., Nicolas, J., Peubey, C., Radu, R., Rozum, I., Muñoz-Sabater, J., Schepers, D., Simmons, A., Soci, C., Thépaut, J-N. and Vamborg, F. 2019. The ERA5 Global Atmospheric Reanalysis at ECMWF as a comprehensive dataset for climate data homogenization, climate variability, trends and extremes. In: Geophysical Research Abstracts (Vol. 21).
- Hrudya, P. H., Varikoden, H. and Vishnu, R. 2021. A review on the Indian summer monsoon rainfall, variability and its association with ENSO and IOD. Meteorol. Atmos. Phys., 133(1): 1-14.
- Jagannathan, P. and Parthasarathy, B. 1973. Trends and periodicities of rainfall over India. Mon. Weather Rev., 101(4): 371-375.
- Jyoti, J., Swapna, P., Krishnan, R. and Naidu, C. V. 2019. Pacific modulation of accelerated south Indian Ocean sea level rise during the early 21st Century. Clim. Dyn., 53(7): 4413-4432.
- Krishnamurti, T. N. and Bhalme, H. N. 1976. Oscillations of a monsoon system. Part I. Observational aspects. J. Atmos. Sci., 33(10): 1937-1954.
- Krishnan, R., Singh, B., Vellore, R., Mujumdar, M., Swapna, P., Choudhury, A., Singh, M., Preethi, B. and Rajeevan, M. 2020. A short perspective on the Mascarene High and the abnormal Indian Monsoon during 2015. ar Xiv preprint ar Xiv: 2011.11372.
- Manatsa, D. and Behera, S. K. 2013. On the epochal strengthening in the relationship between rainfall of East Africa and IOD. J. Clim., 26(15): 5655-5673.
- Manatsa, D., Morioka, Y., Behera, S. K., Matarira, C. H. and Yamagata, T. 2014. Impact of Mascarene High variability on the East African ‘short rains’. Clim. Dyn., 42(5): 1259-1274.
- Marchant, R., Mumbi, C., Behera, S. and Yamagata, T. 2007. The Indian Ocean dipole - the unsung driver of climatic variability in East Africa. Afr. J. Ecol., 45(1): 4-16.
- Mooley, D. A. 1975. Climatology of the Asian summer monsoon rainfall - controls and concentration. Geogr. Rev. India, 37: 7-20.
- Neelin, J. D., Held, I. M. and Cook, K. H. 1987. Evaporation-wind feedback and low-frequency variability in the tropical atmosphere. J. Atmos. Sci., 44(16): 2341-2348.
- Ogwang, B. A., Chen, H., Tan, G., Ongoma, V. and Ntwali, D. 2015. Diagnosis of East African climate and the circulation mechanisms associated with extreme wet and dry events: a study based on RegCM4. Arab. J. Geosci., 8(12): 10255-10265.
- Parthasarathy, B. and Dhar, O. N. 1974. Secular variations of regional rainfall over India. Q. J. R. Meteorol. Soc., 100(424): 245-257.
- Roxy, M. K., Ritika, K., Terray, P., Murtugudde, R., Ashok, K. and Goswami, B. N. 2015. Drying of Indian subcontinent by rapid Indian Ocean warming and a weakening land-sea thermal gradient. Nat. Commun., 6(1): 7423. DOI: 10.1038. ncomms8423.
- Saji, N. H., Goswami, B. N., Vinayachandran, P. N. and Yamagata, T. 1999. A dipole mode in the tropical Indian Ocean. Nature, 401(6751): 360-363.
- Shi, W., Xiao, Z. and Xue, J. 2016. Teleconnected influence of the boreal winter Antarctic oscillation on the Somali Jet: bridging role of sea surface temperature in southern high and middle latitudes. Adv. Atmos. Sci., 33(1): 47-57.
- Vuille, M., Franquist, E., Garreaud, R., Casimiro, W. S. L. and Cáceres, B. 2015. Impact of the global warming hiatus on Andean temperature. J. Geophys. Res. Atmos., 120(9): 3745-3757.
- Wang, H. and Xue, F. 2013. The interannual variability of Somali Jet and its influences on the inter-hemispheric water vapor transport and the East Asian summer rainfall. Chin. J. Geophys., 46(1): 11-20.
- Xue, F., Wang, H. and He, J. 2003. Interannual variability of Mascarene high and Australian high and their influences on summer rainfall over East Asia. Chin. Sci. Bull,, 48(5): 492-497.
- Xulu, N. G., Chikoore, H., Bopape, M. J. M. and Nethengwe, N. S. 2020. Climatology of the Mascarene High and its influence on weather and climate over Southern Africa. Climate, 8(7): 86. DOI: 10.3390/cli8070086
- Yadav, R. K., Kumar, K. R. and Rajeevan, M. 2009. Increasing influence of ENSO and decreasing influence of AO/NAO in the recent decades over northwest India winter precipitation. J. Geophys. Res. Atmos., 114: D12112 (pp. 1-12). DOI: 10.1029/2008JD011318.
- Yan, X. H., Boyer, T., Trenberth, K., Karl, T. R., Xie, S. P., Nieves, V., Tung, K. K. and Roemmich, D. 2016. The global warming hiatus: slowdown or redistribution? Earth’s Future, 4(11): 472-482.