MORPHOMETRIC AND HYDROLOGIC ANALYSIS OF BHADAR BASIN OF GUJARAT USING REMOTE SENSING & GIS TECHNIQUES 2801
dc.contributor.advisor | H. D. Rank | |
dc.contributor.author | KELAIYA JAINISH HIMANSHUBHAI | |
dc.date.accessioned | 2021-05-28T05:46:44Z | |
dc.date.available | 2021-05-28T05:46:44Z | |
dc.date.issued | 2019-01 | |
dc.description.abstract | The natural resources planning and management can be successful if it is based on the drainage basin scale. The feasible and viable techno-economic planning for the soil and water conservation requires the hydrologic response to climate and various land uses. Morphometric analysis of a drainage basin expresses fully the state of dynamic balance that has been attained due to dealings between matter and energy. Morphometric analysis based either in GIS environment or otherwise is a competent tool for geo-hydrological studies and are very useful for identifying and planning the groundwater potential zones and watershed management, including the whole gamut of natural resources connected with the watershed. It becomes necessary to understand the topography, erosion status and drainage patterns of the region. The SWAT model is the tool to assess the water balance components of the hydrological cycle like rainfall, runoff, evapotranspiration and groundwater recharge under given land use, management and climate. The runoff and groundwater recharge assessment are very useful for the water resources development and planning. This study was undertaken for the Bhadar River basin divided into 16 watersheds and total drainage area of 7330.40 km2 . Morphometric analysis, such as linear, aerial and relief aspects of the Bhadar River basin has been done with the help of remote sensing and GIS techniques. The climatic, discharge and sediment yield data were divided into calibration period (1981-2000) and validation period (2001- 2010). The climatic and discharge data, sediment data, SRTM-DEM imagery, soil maps and land use/cover classification from LISS IV imagery are used as primary inputs for SWAT model. The SWAT model was used to assess the hydrologic response of the basin after sensitivity analysis, calibration and validation. In this study SWAT model was developed for sediment yield simulation at the outlet of the basin and this model applied to the every watersheds of basin for the estimation of sediment yield. The watershed prioritization was made using the morphometric parameters and sediment yield from all watersheds. The groundwater recharge was estimated using water table fluctuation and SWAT Model and compared. Hydrologic analysis is an analysis of interrelated components, including the processes of precipitation, evaporation, transpiration, infiltration, groundwater flow, streamflow, sediment yield etc., in addition to those structures and devices that are used to manage the hydrologic system. The capabilities of remote sensing and GIS techniques are explored in this study to simulate sediment yield in the basin. The ground water recharge was also estimated using empirical equations. Precipitation measured at 37 stations over 1981−2010 is used as an input dataset to establish hydrologic analysis. 30 years of climatic and discharge data along with different remote sensing imagery and soil map were also used. The empirical model was developed and proposed to assess the groundwater recharge using the seasonal rainfall data. The performance indices like NSE and goodness of fit were used in the modeling to assess the accuracy in the predictions. The river basin is designated as 7th order basin. The 1 st order streams are mostly dominating the basin. The moderate drainage density indicates that weak subsurface material and belongs to medium texture. The study reveals that the basin has less elongated to elongated shape and associated with steep ground slopes. The ranges of Rb are high as mean Rb of the basin is 5.38, and it has been characterized by the influences of underlying structures and lithology. Relief having a value of 0.303 km indicates low gravity of water flow as well as infiltration and high runoff conditions. The watershed 5G1B15 should be treated first while 5G1B4 at last. Highest priority indicates the greater degree of erosion in the particular watershed and it becomes potential candidate for applying soil conservation measures first. The developed soil theme map shows that clay and fine soil are dominating in the Bhadar river basin. The land use/cover analysis shows that agricultural land is dominating in the basin. The sediment yield obtained from different watershed using SWAT model also gives the same highest priority to watershed 5G1B15 having highest sediment yield among all watersheds. The performance of SWAT model is satisfactory in terms of different performance indices such as NSE and goodness of fit for calibration(NSE=64.6%, R2 =0.762) and validation(NSE=68.5%, R2 =0.798). SWAT model provides a better description of water balance of the watershed. The average annual rainfall, runoff, evapotranspiration, percolation to shallow aquifer and recharge to deep aquifer in the basin are 569.3 mm, 197.19 mm, 244.6 mm, 111.64 mm and 5.58 mm respectively. The annual average runoff is 36.37% of the average annual rainfall. The average annual sediment yield during calibration and validation periods are 14.13 t/ha and 19.40 t/ha. Among the developed models, the non-linear empirical ground water recharge model as R = 1.642(P – 230.054)0.583 (with NSE=86.59%, where R and P are the seasonal groundwater recharge, mm for the seasonal rainfall amount, mm of P) was found best. Performance of SWAT, a physically based model and empirical models were compared to simulate the ground water recharge of the Bhadar river basin. The best fit empirical model performs better than and SWAT model (NSE = 74.94%, R2 =0.898). | en_US |
dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810169339 | |
dc.keywords | Arc GIS, Morphometric, Bhadar, Sediment yield, Watershed, Basin, SWAT, Groundwater, | en_US |
dc.language.iso | English | en_US |
dc.pages | 178p | en_US |
dc.publisher | JAU, JUNAGADH | en_US |
dc.sub | Soil and Water Engineering | en_US |
dc.theme | MORPHOMETRIC AND HYDROLOGIC ANALYSIS OF BHADAR BASIN OF GUJARAT USING REMOTE SENSING & GIS TECHNIQUES 2801 | en_US |
dc.these.type | Ph.D | en_US |
dc.title | MORPHOMETRIC AND HYDROLOGIC ANALYSIS OF BHADAR BASIN OF GUJARAT USING REMOTE SENSING & GIS TECHNIQUES 2801 | en_US |
dc.type | Thesis | en_US |
Files
Original bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- J. H. Kelaiya Ph.D. Thesis.pdf
- Size:
- 7.57 MB
- Format:
- Adobe Portable Document Format
- Description:
- MORPHOMETRIC AND HYDROLOGIC ANALYSIS OF BHADAR BASIN OF GUJARAT USING REMOTE SENSING & GIS TECHNIQUES 2801
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.71 KB
- Format:
- Item-specific license agreed upon to submission
- Description: