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2015 | 22 |

Tytuł artykułu

Monsoonal droughts in India – a recent assessment

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Drought frequencies during the years 1901–2010 were investigated over three spatial units – All India, 5 Homogeneous Regions (HR) and 36 Meteorological subdivisions (MSs). The All-India rainfall trend is in fact indicative of no trend, while the Northeast HR (NER) shows a significant decrease. Furthermore, a significant decrease in rainfallis to be observed over Himachal Pradesh, Madhya Pradesh, Maharashtra and the Southern Peninsular region, and a significant increase over West Bengal, Punjab, Haryana, Coastal Karnataka, North Interior Karnataka and Rayalaseema. There have been 21 All-India drought years during the last century, of which 13 were linked to El Niño. When compared with HRs, the WCR is highly prone to El Niño while the NER is not affected by this global tele-connection. Western Uttar Pradesh, Eastern Rajasthan, Uttarakhand, Vidharbha and Telangana shared 11–10 drought occasions with El Niño. Maximum frequencies of droughts (21) were reported for East Madhya Pradesh within the WCR and Orissa within the Central Northeast Region (CNER), while Andaman, Nicobar and Rayalaseema experienced minimum drought episodes (12) over the last century. Sixty percent of the MSs in the West Central Region (WCR) and the Northwest Region (NWR) were coherent with All-India droughts. During the years 1918, 1972 and 2002, the majority of HRs (except NER) witnessed normal or below-normal rainfall. Western Madhya Pradesh within the WCR saw maximum drought events (13). The highest degree of simultaneous occurrence of drought years between the MSs and all-India concern Eastern Rajasthan, Western Madhya Pradesh, East and West Uttar Pradesh. The study also found that the MSs in HRs highly affected are East Rajasthan (NWR), West Madhya Pradesh (WCR), West and East Uttar Pradesh (CNER), NER and Coastal Karnataka (Peninsular Region). Western Uttar Pradesh, Eastern Rajasthan, Vidarbha and Telangana had 10–11 occasions when El Niño and Drought years occurred.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

22

Opis fizyczny

p.19-35,fig.,ref.

Twórcy

  • Government Sardars PU College, Belgaum 590001, Karnataka, India
autor
  • Department of Geography, University of Pune, Pune 411007, Maharastra, India
  • National Data Centre, India Meteorological Department, Pune 411005, India

Bibliografia

  • Akre R. S. and Nagrale G. S., 2012, A Study Of the Drought Situation In El-Niño Years Over a Central India Homogeneous Region, Mausam, 63, 1, 162–164.
  • Climate Diagnostic Bulletin, Indian Meteorological Department, Pune, http://www.imdpune.gov.in/reaserch/ncc/climatebulletin/climatbulletin.html
  • Dutta, Somenath, Nakhedkar S. G., Sikka D. R. and Devi S., 2011, A dynamical comparison between two recent drought southwest monsoon seasons 2002 and 2009 over India, Mausam, 62, 133–144.
  • Gore P. G., Thakur Prasad and Hatwar H. R., 2010, Mapping of drought areas over India, NCC Research Report No. 12, India Meteorological Department, Pune, 1–21.
  • IPCC, 2012, Summary for Policymakers, [in:] Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation, Field C.B., V. Barros, T.F. Stocker, D. Qin, D.J. Dokken, K.L. Ebi, M.D. Mastrandrea, K.J. Mach, G.-K. Plattner, S.K. Allen, M. Tignor, and P.M. Midgley (eds), A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK, and New York, NY, USA, 1–19.
  • Jenamani R. K. and Dash S. K., 2005, A study on the role of synoptic and semi-permanent features of Indian summer monsoon on its rainfall variations during different phases of El-Niño, Mausam, 56, 4, 825–840.
  • Mall R. K., Gupta A., Singh R., Singh R. S., Rathore L. S., 2006, Water resources and Climate Change: An Indian Perspective, Current Science, 90, 12, 1610–1626.
  • Nandargi S. and Dhar O. N., 2003, Floods in India during the drought year of 2002, Journal of Meteorology, 28, 281, 249–256.
  • Parthasarathy B. and Pant G. B., 1984, The spatial and temporal relationships between the Indian summer monsoon rainfall and the Southern Oscillation, Tellus, 36A, 269–277.
  • Preethi B., Revadekar J.V. and Kripalani R.H., 2011, Anomalous behaviour of the Indian summer monsoon 2009, J. Earth Syst. Sci., 120, 5, 783–794.
  • Sen A.K. and Sinha Ray K.C., 1997, Recent trends in drought-affected areas in India, Presented at the International Symposium on Tropical Meteorology, INTROPMET-1997 at IIT, New Delhi, 1–50.
  • Shewale M.P. and Rase D.M., 2000, Recurrent drought in a tropical sub-humid area, rice yield variability and its possible association with El Niño episodes – A case study, Proceedings of Tropmet-2000, National Symposium on Tropical Meteorology, held at Dept. of Atmospheric Sciences, Cochin University of Science and Technology, 571–575.
  • Shewale M.P. and ShravanKumar S., 2005, Climatological features of drought incidences in India, IMD Technical Report, No. 21/2005, 1–22.
  • Sikka D. R., 2002, Monsoon flood (JOINT COLA/CARE Report, No. 4), COLA, Calverton, Maryland, 1–123.
  • Sikka D. R. and Kulshrestha S. M, 2002, Indian droughts in the context of History and Climate, (Joint COLA/CARE, Tech. Report No. 6), COLA, Calverton, Maryland, 270 pp.
  • Singh C. V., 2001, Probabilities and distribution of monsoon rainfall in normal, flood and drought years over India, Meteorology and Atmospheric Physics, 78, 205–214.
  • Sinha Ray K.C. and Shewale M.P., 2001, Probability of occurrence of drought in various subdivisions of India, Mausam, 52, 3, 541–546.
  • Srivastava A.K. and Guhathakurta P., 2004–2010, Climate Diagnositic Bulletin of India, National Climate Centre, India Meteorological Department, Pune, 1–20.
  • The NCEP/NCAR Reanalysis, the NOAA/ESRL Physical Sciences Division, http://www.esrl.noaa.gov/psd/data/reanalysis/reanalysis.shtml
  • Tyalagadi M.S., Gadgil A. and Krishnakumar G., 2007, Characteristics of July deficit rainfall in India, Geographical Review of India, 69, 2, 133–141.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-be72b5a7-2067-4641-84c7-55bef283fc38
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