SPATIAL AND TEMPORAL VARIABILITY OF RAINFALL PATTERN IN THE PARENTAL DISTRICTS OF CHHATTISGARH STATE

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dc.contributor.advisorDas, G.K.
dc.contributor.authorXalxo, Anshu Lata
dc.contributor.otherPanda, D.K.
dc.contributor.otherPuranik, H.V.
dc.contributor.otherChandrakar, D.K.
dc.contributor.otherRamole, S.
dc.date.accessioned2021-07-07T10:31:46Z
dc.date.available2021-07-07T10:31:46Z
dc.date.issued2021
dc.descriptionSPATIAL AND TEMPORAL VARIABILITY OF RAINFALL PATTERN IN THE PARENTAL DISTRICTS OF CHHATTISGARH STATEen_US
dc.description.abstractThe present study entitled " Spatial and temporal variability of rainfall pattern in the parental districts of Chhattisgarh state" was conducted at Indian Institutions of Water Management, Bhubaneswar, Odisha during 2019-2020. The district-wise long term weather data (1981-2018) was collected from Department of Agrometeorology, IGKV, Raipur.The 18 parental districts were selected for study i.e.Baster, Bilaspur, Dantewara, Dhamtari, Durg, Janjgir-Champa, Jaspurnagar, Kanker, Korba, Koriya, Kowardha, Mahasamund, Raigarh, Raipur, Rajnandgaon, Surguja, Bijapur, Narayanpur.To fullfill the objectives of present investigation long term daily data (from 1981-2018) was used,which was averaged on monthly, annual and seasonal basis as per need of Mann-Kendall test and linear graphmethod of Ms-Excel.To quantify the rainfall distribution pattern and the rainfall concentration across the statedistrict wise“Seasonality Index” and “Precipitation Concentration Index”on seasonal and annual basiswere workout with the help of formula given by Walsh and Lawler (1981) and Oliver (1980).Based on trend analysis it was reported that Dantewada and Mahasamund districts recorded significant increasing trend of rainfall at the rate of 8.3mm and 8.9mm per year respectively whereas, the districts Korba, Jashpur-Nagar and Kabirdham showed significant decreasing trend of rainfall at the rate of 8.3mm,16.3mm and1.9mm per year. The SeasonalityIndex wasworkedout on annual basisindicates that the maximum districts falls in the range of 1.0-1.19 means those all districts received major portion of rainfall during 1 to 3 months in the year, where in Kanker, Raipur and Mahasamund districts reported maximum value of Seasonality Index i.e.1.20, 1.27and 1.25 respectively. It indicates that in these districts rainfall occur during 1 to 2 months. The lowestSeasonality Indexvalue was reported in Baster and Narayanpur i.e.1.05 and 1.06. It indicates that in these districts rainfall occur during 1 to 3 months.The outcome of Seasonality Index carried out on south-west monsoon basis indicatesthat the value was in the range of 0.33 to 0.39 in almost all districts meansthat the rainfall spread throughout the season but with a period of definite wetter season in which the highest value was 0.48 in Korba district means in this districts the distribution of rainfall was concentrated in throughout the season but they might be short-drier period. xvTheresult of Precipitation Concentration Index reported that entire parental districts falls under strong irregular distribution of rainfall that is in the range of 28 to 31.2it means they received rainfall with high concentration in the year. WhileDurg and Mahasamund districts reported the maximum values of Precipitation Concentration Index i.e.31.2 and 28 where as the minimum value was associated in Baster and Narayanpur i.e.21 and 23 respectively.Precipitation Concentration Index was computed on the basis of south-west monsoon indicates that its value range in between 9.6 to 10.49. The maximum value of Precipitation Concentration Index was10.49 in the Janjgir-Champa district means there was moderated precipitation concentration in the season. The minimum value as Precipitation Concentration Index was 9.6 in Baster district indicates there was uniform precipitation concentration of rainfall in the season.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810170199
dc.keywordsRAINFALL PATTERNen_US
dc.language.isoEnglishen_US
dc.pages126p.en_US
dc.publisherIndira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.)en_US
dc.research.problemSPATIAL AND TEMPORAL VARIABILITY OF RAINFALL PATTERN IN THE PARENTAL DISTRICTS OF CHHATTISGARH STATEen_US
dc.subAgricultural Meteorologyen_US
dc.themeSPATIAL AND TEMPORAL VARIABILITY OF RAINFALL PATTERN IN THE PARENTAL DISTRICTS OF CHHATTISGARH STATEen_US
dc.these.typeM.Scen_US
dc.titleSPATIAL AND TEMPORAL VARIABILITY OF RAINFALL PATTERN IN THE PARENTAL DISTRICTS OF CHHATTISGARH STATEen_US
dc.typeThesisen_US
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