Past, Present and Future Perspectives of Seasonal Prediction of Indian Summer Monsoon Rainfall: A Review

다국어 초록 (Multilingual Abstract)

This paper presents a detailed review and discussion on the long-range forecast (LRF) of Indian summer monsoon rainfall(ISMR), its present status, problems, and perspectives with an emphasis on the Indian meteorological department (IMD)operational forecasting methods and its forecasts. Verifications of IMD LRF for 1924-1987 revealed a success rate of nearly64%. IMD operational LRF skills (correlation coefficient) during the period 1988-2020 were found as 0.25 and 0.34 for the1st -stage (April) and 2nd -stage (June), respectively. From 1988 to 2020 (33-years), 21-years of predictions were predictedout of the confidence band (±4%LRF). Out of these 21-years, 18-years were individual or co-occurring El Niño-SouthernOscillation (ENSO) and Indian Ocean Dipole (IOD) event years. It indicates that IMD operational models have failed tocapture ENSO and IOD phenomenon effects in their predictions considerably, despite the developing stage of ENSO andIOD events during the monsoon season. Moderate success and limitations of statistical models of IMD lead to the launchingof the Monsoon mission (MM) in 2012 to use the dynamical prediction system by using the climate forecast system. Withina span of 7-years, MM has brought the skill of ISMR prediction to 0.71, which is above the older potentially predictablelimit estimate of 0.65. Overall, in the last century, enormous progress has been made on the LRF of the ISMR. The accuratecapturing of the ENSO and IOD phenomenon, incorporation of non-stationarity components in the predictors, improvementsin the model microphysics and initial conditions could improve prediction skills.

참고문헌 (Reference)

1 Jin-Ho Yoon, "Water vapor budget of the Indian monsoon depression" Stockholm University Press 57 (57): 770-782, 2005

2 Thapliyal, V., "Updated operational models for longrange forecasts of Indian summer monsoon rainfall" 54 : 495-504, 2003

3 Dwivedi, S., "Unraveling the missing link of ENSO control over the Indian monsoon rainfall" 42 : 8201-8207, 2015

4 Saha, S. K., "Unraveling the Mystery of Indian Summer Monsoon Prediction : Improved Estimate of Predictability Limit" 124 : 1962-1974, 2019

5 H. N. Bhalme, "Tropical Quasi-Biennial Oscillation of the 10-mb wind and Indian monsoon rainfall-implications for forecasting" Wiley 7 (7): 345-353, 1987

6 Box, G. E. P., "Time series analysis, forecasting and control" CA Holden-Day 1970

7 Taotao Zhang, "The weakening relationship between Eurasian spring snow cover and Indian summer monsoon rainfall" American Association for the Advancement of Science (AAAS) 5 (5): eaau8932-, 2019

8 Malay Ganai, "The impact of revised simplified Arakawa–Schubert convection parameterization scheme in CFSv2 on the simulation of the Indian summer monsoon" Springer Science and Business Media LLC 45 (45): 881-902, 2014

9 Ganai, M., "The impact of revised simplified Arakawa-Schubert scheme on the simulation of mean and diurnal variability associated with active and break phases of Indian summer monsoon using CFSv2" 121 : 9301-9323, 2016

10 Basu, S., "The chaotic time series of Indian monsoon rainfall and its prediction" 1992

11 Madolli MJ, "The application of generalized additive models (GAMs) for assessing the teleconnection of ENSO and IOD with monsoon rainfall variability over Krishna river basin, India" 22 (22): 33-40, 2020

12 J. Shukla, "The Southern Oscillation and Long-Range Forecasting of the Summer Monsoon Rainfall over India" American Meteorological Society 111 (111): 1830-1837, 1983

13 Suranjana Saha, "The NCEP Climate Forecast System Version 2" American Meteorological Society 27 (27): 2185-2208, 2014

14 Saha, S., "The NCEP Climate Forecast System" 19 : 3483-3517, 2006

15 Ashok, K., "The Indian summer monsoon rainfall and ENSO" 70 : 443-452, 2019

16 Blandford, H. F., "The Indian Meteorologists Vade-Mecum, Part 2. Meteorology of India"

17 Fieldhouse, D., "The Cambridge Illustrated History of the British Empire" 108-146, 1996

18 K. R. Sperber, "The Asian summer monsoon: an intercomparison of CMIP5 vs. CMIP3 simulations of the late 20th century" Springer Science and Business Media LLC 41 (41): 2711-2744, 2012

19 Kang, I. -S., "The Asian Monsoon" Springer 585-612, 2006

20 Goswami, B. N., "The Annual Cycle, Intraseasonal Oscillations, and Roadblock to Seasonal Predictability of the Asian Summer Monsoon" 19 : 5078-5099, 2006

21 B. Parthasarathy, "Surface and upper air temperatures over India in relation to monsoon rainfall" Springer Science and Business Media LLC 42 (42): 93-110, 1990

22 John R. Lanzante, "Strategies for Assessing Skill and Significance of Screening Regression Models with Emphasis on Monte Carlo Techniques" American Meteorological Society 23 (23): 1454-1458, 1984

23 Thapliyal, V., "Stochastic dynamic model for longrange prediction of monsoon rainfall in peninsular India" 33 : 399-404, 1982

24 Hae-Kyung Lee Drbohlav, "Spatial Structure, Forecast Errors, and Predictability of the South Asian Monsoon in CFS Monthly Retrospective Forecasts" American Meteorological Society 23 (23): 4750-4769, 2010

25 D. R. Sikka, "Some aspects of the life history, structure and movement of monsoon depressions" Springer Science and Business Media LLC 115 (115): 1501-1529, 1977

26 G. B. Pant, "Some aspects of an association between the southern oscillation and indian summer monsoon" Springer Science and Business Media LLC 29 (29): 245-252, 1981

27 Shipra Jain, "Skill of Indian summer monsoon rainfall prediction in multiple seasonal prediction systems" Springer Science and Business Media LLC 52 (52): 5291-5301, 2018

28 Song Yang, "Simulations and Seasonal Prediction of the Asian Summer Monsoon in the NCEP Climate Forecast System" American Meteorological Society 21 (21): 3755-3775, 2008

29 Bidyut B. Goswami, "Simulation of the Indian Summer Monsoon in the Superparameterized Climate Forecast System Version 2: Preliminary Results" American Meteorological Society 28 (28): 8988-9012, 2015

30 Sahai, A. K., "Simulation and extended range prediction of monsoon intraseasonal oscillations in NCEP CFS/GFS version 2 framework" 2013

31 Gadgil, S., "Seasonal prediction of the Indian monsoon" 100 : 343-353, 2011

32 Samir Pokhrel, "Seasonal prediction of Indian summer monsoon rainfall in NCEP CFSv2: forecast and predictability error" Springer Science and Business Media LLC 46 (46): 2305-2326, 2015

33 Rao, S. A., "Seasonal prediction of Indian summer monsoon in India : The past, the present and the future" 70 : 265-276, 2019

34 K. Krishna Kumar, "Seasonal forecasting of Indian summer monsoon rainfall: A review" Wiley 50 (50): 449-467, 1995

35 A.K. Sahai, "Seamless Prediction of Monsoon Onset and Active/Break Phases" Elsevier 421-438, 2019

36 Lloyd J. Shapiro, "Sampling Errors in Statistical Models of Tropical Cyclone Motion: A Comparison of Predictor Screening and EOF Techniques" American Meteorological Society 112 (112): 1378-1388, 1984

37 Jongil Han, "Revision of Convection and Vertical Diffusion Schemes in the NCEP Global Forecast System" American Meteorological Society 26 (26): 520-533, 2011

38 Abhik, S., "Revised cloud processes to improve the mean and intraseasonal variability of Indian summer monsoon in climate forecast system : Part 1" 9 : 1002-1029, 2017

39 Bin Wang, "Rethinking Indian monsoon rainfall prediction in the context of recent global warming" Springer Science and Business Media LLC 6 (6): 2015

40 Montgomery, R. B., "Report on the work of G. T. Walker" 1940

41 Kendall, M. G., "Rank Correlation Methods" Charles Griffin 1957

42 Richard W. Katz, "Rainfal Statistics, Droughts, and Desertification in the Sahel" CRC Press 81-102, 2019

43 Hazra, A., "Progress Towards Achieving the Challenge of Indian Summer Monsoon Climate Simulation in a Coupled Ocean-Atmosphere Model" 9 : 2268-2290, 2017

44 Makarand A. Kulkarni, "Probabilistic prediction of Indian summer monsoon rainfall using global climate models" Springer Science and Business Media LLC 107 (107): 441-450, 2011

45 Acharya, N., "Probabilistic multi-model ensemble prediction of Indian summer monsoon rainfall using general circulation models : A non-parametric approach" 345 : 126-135, 2013

46 Pai, D. S., "Present operational long range forecasting system for southwest monsoon rainfall over india and its performance during 2010" 2010

47 Janakiraman, S., "Prediction of the Indian summer monsoon rainfall using a state-of-the-art coupled ocean-atmosphere model" 2011

48 D. R. Pattanaik, "Prediction of summer monsoon rainfall over India using the NCEP climate forecast system" Springer Science and Business Media LLC 34 (34): 557-572, 2009

49 Dandi A. Ramu, "Prediction of seasonal summer monsoon rainfall over homogenous regions of India using dynamical prediction system" Elsevier BV 546 : 103-112, 2017

50 Satishkumar S. Kashid, "Prediction of monthly rainfall on homogeneous monsoon regions of India based on large scale circulation patterns using Genetic Programming" Elsevier BV 454-455 : 26-41, 2012

51 B. Parthasarathy, "Prediction of all-India summer monsoon rainfall with regional and large-scale parameters" American Geophysical Union (AGU) 93 (93): 5341-, 1988

52 Rajeevan, M., "Prediction of Indian summer monsoon: Status, problems and prospects" 2001

53 Thapliyal, V., "Prediction of Indian droughts with lower stratospheric winds" 35 : 367-374, 1984

54 Alessandri, A., "Prediction of Indian Summer Monsoon Onset Using Dynamical Subseasonal Forecasts : Effects of Realistic Initialization of the Atmosphere" 143 : 778-793, 2015

55 Nanjundiah, R. S., "Predicting the extremes of Indian summer monsoon rainfall with coupled ocean-atmosphere models" 2013

56 J. Shukla, "Predictability in the Midst of Chaos: A Scientific Basis for Climate Forecasting" American Association for the Advancement of Science (AAAS) 282 (282): 728-731, 1998

57 C-P. Chang, "Possible Roles of Atlantic Circulations on the Weakening Indian Monsoon Rainfall–ENSO Relationship" American Meteorological Society 14 (14): 2376-2380, 2001

58 Pai, D. S., "Performance of the operational and experimental longrange forecasts for the 2015 southwest monsoon rainfall" 112 : 2017

59 Walker GT, "Part 9 of Memoirs of the India Meteorological Department" Meteorological Office 1924

60 VASANT GOWARIKER, "Parametric and power regression models: New approach to long range forecasting of monsoon rainfall in India" India Meteorological Department 40 (40): 1989

61 Balaji Rajagopalan, "Pacific Ocean sea-surface temperature variability and predictability of rainfall in the early and late parts of the Indian summer monsoon season" Springer Science and Business Media LLC 39 (39): 1543-1557, 2011

62 T. N. Krishnamurti, "Oscillations of a Monsoon System. Part I. Observational Aspects" American Meteorological Society 33 (33): 1937-1954, 1976

63 Vincent Moron, "On the spatial coherence of sub-seasonal to seasonal Indian rainfall anomalies" Springer Science and Business Media LLC 49 (49): 3403-3423, 2017

64 Hastenrath, S., "On the prediction of India monsoon rainfall anomalies" 1987

65 Ankita Singh, "On the predictability of Indian summer monsoon rainfall in general circulation model at different lead time" Elsevier BV 58 : 108-127, 2012

66 D. R. Sikka, "On the Maximum Cloud Zone and the ITCZ over Indian, Longitudes during the Southwest Monsoon" American Meteorological Society 108 (108): 1840-1853, 1980

67 Gadgil, S., "On forecasting the Indian summer monsoon: The intriguing season of 2002" 2002

68 Banerjee, A. K., "On Foreshadowing Southwest Monsoon Rainfall over Indian with Mid Tropospheric Circulation Anomaly of April" 29 : 425-431, 1978

69 P. Guhathakurta, "Observed changes in southwest monsoon rainfall over India during 1901-2011" Wiley 35 (35): 1881-1898, 2014

70 Henry B. Mann, "Nonparametric Tests Against Trend" JSTOR 13 (13): 245-, 1945

71 M. Rajeevan, "New statistical models for long-range forecasting of southwest monsoon rainfall over India" Springer Science and Business Media LLC 28 (28): 813-828, 2006

72 M. Rajeevan, "New Models for Long Range Forecasts of Summer Monsoon Rainfall over North West and Peninsular India" Springer Science and Business Media LLC 73 (73): 211-225, 2000

73 Robertson, A. W., "Multi-scale variability and predictability of Indian summer monsoon rainfall" 70 : 277-292, 2019

74 Parthasarathy, B., "Monthly and seasonal rainfall series for all India, homogeneous regions and meteorological subdivisions : 1871–1994" 1995

75 Webster, P. J., "Monsoons : Processes, predictability, and the prospects for prediction" 103 : 14451-14510, 1998

76 Normand, C., "Monsoon seasonal forecasting" 79 : 463-473, 1953

77 Gadgil, S., "Monsoon prediction- Why yet another failure?" 2005

78 Gadgil, S., "Monsoon prediction : Are dynamical models getting better than statistical models?" 103 : 257-259, 2012

79 S. Gadgil, "Monsoon precipitation in the AMIP runs" Springer Science and Business Media LLC 14 (14): 659-689, 1998

80 Vincent Moron, "Monsoon Sub-Seasonal Prediction" 327-340, 2021

81 Krishnamurthy, V., "Monsoon Monographs, Volume II" 266-306, 2012

82 Rao, S. A., "Monsoon Mission : A Targeted Activity to Improve Monsoon Prediction across Scales" 100 : 2509-2532, 2019

83 Charney, J. G., "Monsoon Dynamics" Cambridge University Press 99-110, 1981

84 G. van der Schrier, "Monitoring European average temperature based on the E-OBS gridded data set" American Geophysical Union (AGU) 118 (118): 5120-5135, 2013

85 T. N. Palmer, "Modeling Interannual Variations of Summer Monsoons" American Meteorological Society 5 (5): 399-417, 1992

86 Hemantkumar S. Chaudhari, "Model biases in long coupled runs of NCEP CFS in the context of Indian summer monsoon" Wiley 33 (33): 1057-1069, 2012

87 Wilks DS, "Meteorological Applications" 2007

88 Joseph, P. V., "Meridional wind index for long range forecasting of Indian summer monsoon rainfall" 32 : 31-34, 1981

89 Alexander Gershunov, "Low-Frequency Modulation of the ENSO–Indian Monsoon Rainfall Relationship: Signal or Noise?" American Meteorological Society 14 (14): 2486-2492, 2001

90 Rajashree Acharya, "Long‐range forecast of Indian summer monsoon rainfall using an artificial neural network model" Wiley 2019

91 Vathsala H, "Long-range prediction of Indian summer monsoon rainfall using data mining and statistical approaches" Springer Science and Business Media LLC 130 (130): 19-33, 2016

92 Guhathakurta, P., "Long-range monsoon rainfall prediction of 2005 for the districts and sub-division Kerala with artificial neural network" 2005

93 Thapliyal, V., "Long-range forecasting of monsoon rainfall in India"

94 Thapliyal, V., "Long range prediction of summer monsoon rainfall over India: Evolution and development of new models" 41 : 339-346, 1990

95 P. Guhathakurta, "Long Range Forecasting Indian Summer Monsoon Rainfallby a Hybrid Principal Component Neural Network Model" Springer Science and Business Media LLC 71 (71): 255-266, 1999

96 Delsole, T., "Linear Prediction of Monsoon Rainfall for Indian Subdivisions" 2006

97 Rajib Chattopadhyay, "Large-scale teleconnection patterns of Indian summer monsoon as revealed by CFSv2 retrospective seasonal forecast runs" Wiley 36 (36): 3297-3313, 2015

98 Jagannathan, P. ., "Jagannathan: Predisposition of the upper air structure... - Google Scholar" 305-316, 1962

99 Satyan, V., "Is there an attractor for the Indian summer monsoon?" 1988

100 H. Annamalai, "Intrinsic problems in the seasonal prediction of the Indian summer monsoon rainfall" Springer Science and Business Media LLC 55 (55): 61-76, 1995

101 R. N. Iyengar, "Intrinsic mode functions and a strategy for forecasting Indian monsoon rainfall" Springer Science and Business Media LLC 90 (90): 17-36, 2004

102 V. Krishnamurthy, "Intraseasonal and Interannual Variability of Rainfall over India" American Meteorological Society 13 (13): 4366-4377, 2000

103 B. N. Goswami, "Intraseasonal Oscillations and Interannual Variability of the Indian Summer Monsoon" American Meteorological Society 14 (14): 1180-1198, 2001

104 B. N. Goswami, "Intraseasonal Oscillations and Interannual Variability of the Indian Summer Monsoon" American Meteorological Society 14 (14): 1180-1198, 2001

105 Subodh Kumar Saha, "Interplay Between Subseasonal Rainfall and Global Predictors in Modulating Interannual to Multidecadal Predictability of the ISMR" American Geophysical Union (AGU) 48 (48): 2021

106 B. N. Goswami, "Interdecadal change in potential predictability of the Indian summer monsoon" American Geophysical Union (AGU) 31 (31): 2004

107 Kang I.-S., "Intercomparison of the climatological variations of Asian summer monsoon precipitation simulated by 10 GCMs" Springer Science and Business Media LLC 19 (19): 383-395, 2002

108 Shukla J, "Interannual variability of monsoons" 399-464, 1987

109 Moron, V., "Interannual variability of Indian summer monsoon rainfall onset date at local scale" 34 : 1050-1061, 2014

110 Verma RK, "Interannual and long-term variability of the summer monsoon and its possible link with northern hemispheric surface air temperature" 1985

111 B. N. Goswami, "Interannual Variations of Indian Summer Monsoon in a GCM: External Conditions versus Internal Feedbacks" American Meteorological Society 11 (11): 501-522, 1998

112 K. R. Sperber, "Interannual Tropical Rainfall Variability in General Circulation Model Simulations Associated with the Atmospheric Model Intercomparison Project" American Meteorological Society 9 (9): 2727-2750, 1996

113 O.S.R.U. Bhanu Kumar, "Interaction between Eurasian winter snow cover and location of the ridge at the 500hPa level along 75°E" Meteorological Society of Japan 66 (66): 509-514, 1988

114 Karumuri Ashok, "Individual and Combined Influences of ENSO and the Indian Ocean Dipole on the Indian Summer Monsoon" American Meteorological Society 17 (17): 3141-3155, 2004

115 B. Preethi, "Indian summer monsoon rainfall variability in global coupled ocean-atmospheric models" Springer Science and Business Media LLC 35 (35): 1521-1539, 2009

116 Dandi A. Ramu, "Indian summer monsoon rainfall simulation and prediction skill in the CFSv2 coupled model: Impact of atmospheric horizontal resolution" American Geophysical Union (AGU) 121 (121): 2205-2221, 2016

117 Pritpal Singh, "Indian summer monsoon rainfall prediction using artificial neural network" Springer Science and Business Media LLC 27 (27): 1585-1599, 2013

118 IITM, "Indian Monsoon Rainfall Record of the Past Century" Indian Inst. Trop. Meteorol

119 Statista, "India - Distribution of gross domestic product (GDP) across economic sectors 2020 | Statista [WWW Document]"

120 Vincent Moron, "Impact of the modulated annual cycle and intraseasonal oscillation on daily-to-interannual rainfall variability across monsoonal India" Springer Science and Business Media LLC 38 (38): 2409-2435, 2011

121 R. Phani Murali Krishna, "Impact of convective parameterization on the seasonal prediction skill of Indian summer monsoon" Springer Science and Business Media LLC 53 (53): 6227-6243, 2019

122 Ramu A. Dandi, "Impact of El Niño Modoki on Indian summer monsoon rainfall: Role of western north Pacific circulation in observations and CMIP5 models" Wiley 40 (40): 2117-2133, 2019

123 Rajeevan, M., "IMD’s new operational models for long-range forecast of southwest monsoon rainfall over India and their verification for 2003" 2003

124 Pokhrel, S., "Hindcast skill improvement in Climate Forecast System(CFSv2)using modified cloud scheme" 38 : 2994-3012, 2018

125 Rajeevan, M., "High resolution daily gridded rainfall data for the Indian region: Analysis of break and active monsoon spells" 296-306, 2006

126 Wang, B., "Fundamental challenge in simulation and prediction of summer monsoon rainfall" 2005

127 Suneet Dwivedi, "Forecasting the Indian summer monsoon intraseasonal oscillations using genetic algorithm and neural network" American Geophysical Union (AGU) 38 (38): 2011

128 C. M. Kishtawal, "Forecasting summer rainfall over India using genetic algorithm" American Geophysical Union (AGU) 30 (30): 2003

129 D. A. Mooley, "Fluctuations in All-India summer monsoon rainfall during 1871-1978" Springer Science and Business Media LLC 6 (6): 287-301, 1984

130 Stephenson, D. B., "Extreme daily rainfall events and their impact on ensemble forecasts of the Indian monsoon" 127 : 1954-1966, 1999

131 B. Parthasarathy, "Evidence of Secular Variations in Indian Monsoon Rainfall–Circulation Relationships" American Meteorological Society 4 (4): 927-938, 1991

132 M. Rajeevan, "Evaluation of the ENSEMBLES multi-model seasonal forecasts of Indian summer monsoon variability" Springer Science and Business Media LLC 38 (38): 2257-2274, 2011

133 Kumar, K. K., "Epochal changes in Indian Monsoon-ENSO precursors" 26 : 75-78, 1999

134 Bin Wang, "Ensemble Simulations of Asian–Australian Monsoon Variability by 11 AGCMs" American Meteorological Society 17 (17): 803-818, 2004

135 World Bank, "Employment in agriculture (% of total employment) (modeled ILO estimate) - India | Data [WWW Document]"

136 Dudley B. Chelton, "Effects of sampling errors in statistical estimation" Elsevier BV 30 (30): 1083-1103, 1983

137 Saha, S. K., "Effects of multilayer snow scheme on the simulation of snow : Offline Noah and coupled with NCEP CFSv2" 9 : 271-290, 2017

138 Climate Indicator Bulletin, "EURO4M, 2014: Warmest Year on Record in Europe"

139 Samir Pokhrel, "ENSO, IOD and Indian Summer Monsoon in NCEP climate forecast system" Springer Science and Business Media LLC 39 (39): 2143-2165, 2012

140 Goswami, B. N., "Dynamics of “internal” interannual variability of the Indian summer monsoon in a GCM" 110 : 1-17, 2005

141 Vitart, F., "Dynamical Extended-Range Prediction of Early Monsoon Rainfall over India" 137 : 1480-1492, 2009

142 Pattanaik, D. R., "Development of empirical–dynamical hybrid forecasts for the Indian monsoon rainfall using the NCEP Climate Forecast SystemNo Title" 11 : 2010

143 Pai, D. S., "Development of a new high spatial resolution (0.25° × 0.25°) long period (1901–2010) daily gridded rainfall data set over India and its comparison with existing data sets over the region" 65 : 1-18, 2014

144 Wilby R, "Decadal climate forecasting techniques for adaptation and development planning"

145 C. T. Dhanya, "Data mining for evolution of association rules for droughts and floods in India using climate inputs" American Geophysical Union (AGU) 114 (114): 2009

146 Rajeevan, M., "Coupled model simulations of twentieth century climate of the Indian summer monsoon" 2009

147 Walker SGT, "Correlaton in Seasonal Variations of Weather, VII: The Local Distribution of Monsoon Rainfall" Meteorol. Off 23-, 1922

148 Walker GT, "Correlation in seasonal variation of weather, VIII: A preliminary study of world weather" 1923

149 Walker GT, "Correlation in seasonal variation of weather II. Mem" India Meteorol. Dep 1910

150 Zheng, Y., "Contribution of Monthly and Regional Rainfall to the Strength of Indian Summer Monsoon" 144 : 3037-3055, 2016

151 Snehashish Chakraverty, "Comparison of neural network configurations in the long-range forecast of southwest monsoon rainfall over India" Springer Science and Business Media LLC 17 (17): 187-192, 2007

152 Nachiketa Acharya, "Comparative evaluation of performances of two versions of NCEP climate forecast system in predicting Indian summer monsoon rainfall" Springer Science and Business Media LLC 62 (62): 199-219, 2013

153 Lloyd J. Shapiro, "Comments on “Strategies for Assessing Skill and Significance of Screening Regression Models with Emphasis on Monte Carlo Techniques”" American Meteorological Society 25 (25): 1295-1298, 1986

154 Erik T. Swenson, "Comment on “Unraveling the Mystery of Indian Summer Monsoon Prediction: Improved Estimate of Predictability Limit” by Saha et al." American Geophysical Union (AGU) 125 (125): 2020

155 Rajagopalan, B., "Combining regional moist static energy and ENSO for forecasting of early and late season Indian monsoon rainfall and its extremes" 41 : 4323-4331, 2014

156 Yasunari, T., "Cloudiness Fluctuations Associated with the Northern Hemisphere Summer Monsoon" 57 : 227-242, 1979

157 H. Vathsala, "Closed Item-Set Mining for Prediction of Indian Summer Monsoon Rainfall A Data Mining Model with Land and Ocean Variables as Predictors" Elsevier BV 54 : 271-280, 2015

158 Rebstock, G. A., "Climatic regime shifts and decadal-scale variability in calanoid copepod populations offsouthern California" 8 : 71-89, 2002

159 J. Vaze, "Climate non-stationarity – Validity of calibrated rainfall–runoffmodels for use in climate change studies" Elsevier BV 394 (394): 447-457, 2010

160 Timothy DelSole, "Climate models produce skillful predictions of Indian summer monsoon rainfall" American Geophysical Union (AGU) 39 (39): 2012

161 Palmer, T. N., "Chaos and predictability in forecasting the monsoons" 60 : 57-66, 1994

162 Kripalani, R., "Association of the Indian summer monsoon with the northern hemisphere mid-latitude circulation" 17 : 225-240, 1997

163 DelSole, T., "Artificial Skill due to Predictor Screening" 22 : 331-345, 2009

164 Himanshu, S. K., "Application of SWAT in an Indian river basin for modeling runoff, sediment and water balance" 76 (76): 1-18, 2017

165 Richard W. Katz, "Anatomy of a Rainfall Index" American Meteorological Society 114 (114): 764-771, 1986

166 Sarita Azad, "Analysing Predictability in Indian Monsoon Rainfall: A Data Analytic Approach" Springer Science and Business Media LLC 2 (2): 717-727, 2015

167 Zhiwei Wu, "An empirical seasonal prediction model of the east Asian summer monsoon using ENSO and NAO" American Geophysical Union (AGU) 114 (114): 2009

168 Douglas G. Hahn, "An Apparent Relationship between Eurasian Snow Cover and Indian Monsoon Rainfall" American Meteorological Society 33 (33): 2461-2462, 1976

169 A. K. Sahai, "All India summer monsoon rainfall prediction using an artificial neural network" Springer Science and Business Media LLC 16 (16): 291-302, 2000

170 Kumar, K. K., "Advancing dynamical prediction of Indian monsoon rainfall" 32 : 1-4, 2005

171 Gupta, A., "Advances in Water Resources Engineering and Management" Springer 141-151, 2020

172 M. Rajeevan, "Active and break spells of the Indian summer monsoon" Springer Science and Business Media LLC 119 (119): 229-247, 2010

173 P. H. Hrudya, "A review on the Indian summer monsoon rainfall, variability and its association with ENSO and IOD" Springer Science and Business Media LLC 133 (133): 1-14, 2020

174 B. N. Goswami, "A physical mechanism for North Atlantic SST influence on the Indian summer monsoon" American Geophysical Union (AGU) 33 (33): 2006

175 Goswami, P., "A novel neural network design for long range prediction of rainfall pattern" 1996

176 Gadgil, S., "A new rain-based index for the Indian summer monsoon rainfall" 70 : 485-500, 2019

177 Pushpa Pandey, "A new perspective on ENSO-Indian summer monsoon rainfall relationship in a warming environment" Springer Science and Business Media LLC 55 (55): 3307-3326, 2020

178 Gowariker, V., "A Power Regression Model for Long Range Forecast of Southwest Monsoon rainfall over India" 42 : 125-130, 1991

179 M. G. Kendall, "A New Measure of Rank Correlation" JSTOR 30 (30): 81-, 1938

180 M. R. Haylock, "A European daily high-resolution gridded data set of surface temperature and precipitation for 1950–2006" American Geophysical Union (AGU) 113 (113): 2008