Assessing drought and length of growing period under current and future climate scenario in Punjab using geospatial technology

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dc.contributor.advisorKingra, P. K.
dc.contributor.authorBopche, Usaka
dc.date.accessioned2022-07-30T13:28:02Z
dc.date.available2022-07-30T13:28:02Z
dc.date.issued2021
dc.description.abstractThe study entitled, "Assessing drought and length of growing period under current and future climate scenario in Punjab using geospatial technology” was conducted at the Department of Climate Change and Agril. Meteorology, PAU, Ludhiana. Long term (1971-2020) rainfall data, mid-century (2040-2060) and end-century (2075-2095) under four different climate change scenarios were collected to calculate Standardized Precipitation Index (SPI) and Length of Growing Period (LGP). In addition to this, remote sensing satellite based indices Vegetation Condition Index (VCI) and Land Surface Water Index (LSWI) were calculated from satellite data. The result concluded that annual SPI in the north-east region increased from first (1971-1980) to third (1991-2000) and decreased thereafter whereas during kharif season, significant increase in SPI was observed during 1981-1990 in central region and significant increase was observed during the period 1971-2020. Decade 2001-2010 experienced worst drought during rabi season. Significant increase in annual SPI during midcentury has been experienced in all the three RCPs 4.5, 6.0 and 8.5 except RCP 2.6 which showed significant decrease @ -0.06/year in north-east region. During kharif season, all four RCPs showed significant increase in SPI. However, during rabi season, RCP 2.6 showed significant decrease @ -0.09/year in SPI in north-east region and significant decrease @ -0.02/year and @ -0.07/year under RCP 4.5 and 6.0, respectively, in central region. No significant change was observed in LGP in north-east and central region but in south-west region, significant increase has been observed @ 0.42/year during the period 1971-2020. LGP is likely to decrease under RCP 2.6 during mid-century @1.08/year in north-east region and also decrease under RCP 4.5 during end-century @ 0.66/year in south-west region. LSWI and VCI was calculated for September month for ten years (2011-2020) indicated that LSWI was almost same throughout the study period, which might be due to sufficient irrigation and soil moisture availability whereas VCI was observed to be fluctuating which may be due to variability in the rainfall. The results of the study indicated that crop condition as well as soil moisture availability was good even during the years of moisture deficit, thus highlighting severe pressure on water resources in the region.en_US
dc.identifier.citationBopche, Usaka (2021). Assessing drought and length of growing period under current and future climate scenario in Punjab using geospatial technology (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810185932
dc.keywordsSPI, LSWI, LGP, VCI, remote sensing, GISen_US
dc.language.isoEnglishen_US
dc.pages98en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemAssessing drought and length of growing period under current and future climate scenario in Punjab using geospatial technologyen_US
dc.subAgricultural Meteorologyen_US
dc.themeAssessing drought and length of growing period under current and future climate scenario in Punjab using geospatial technologyen_US
dc.these.typeM.Scen_US
dc.titleAssessing drought and length of growing period under current and future climate scenario in Punjab using geospatial technologyen_US
dc.typeThesisen_US
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