http://117.252.14.250:8080/jspui/handle/123456789/6701 2026-02-20T10:24:24Z 2026-02-20T10:24:24Z National Institute of Hydrology http://117.252.14.250:8080/jspui/handle/123456789/6710 2022-03-08T21:37:35Z 1998-01-01T00:00:00Z

Title: Contents Authors: National Institute of Hydrology

1998-01-01T00:00:00Z Rao, V. Venkateshwar Chakraborti, A. K. http://117.252.14.250:8080/jspui/handle/123456789/6709 2022-03-08T21:36:32Z 1998-01-01T00:00:00Z

Title: 1-Water Balance Study and Conjuctive Water Use Planning in Irrigation Canal Command Area - A Remote Sensing Perspective. Authors: Rao, V. Venkateshwar; Chakraborti, A. K. Abstract: Water budgeting of the D-36 and D-36A distributaries confined between Peddavagu, Korutla Vagu and Kakatiya main canal of SriRam Sagar Project Command area was conducted using remote sensing derived crop areas, landuse/landcover, irrigation tank inventory, source-wise irrigated areas, etc., together with the conventional meteorological, canal flow and well inventory data. Recharge and water balance in the study area indicate that the net recharge to aquifer is negative to the tune of 254 ha. m. resulting in fall of ground water table by 0.79 m during 1992-93. However, normalised groundwater recharge and water balance estimates indicate an impending water logging problem with an annual ground water table rise of 0.35 m. In view of existing water management practices, a conjunctive water use plan of rotational utilization of groundwater and canal water is suggested.

1998-01-01T00:00:00Z Choubey, V. K. http://117.252.14.250:8080/jspui/handle/123456789/6708 2022-03-08T21:33:41Z 1998-01-01T00:00:00Z

Title: 2-Mapping of Waterlogged Area by Remote Sensing Techniques. Authors: Choubey, V. K. Abstract: Waterlogging Is becoming a serious problem in irrigated command area of India; the study area is SriRam Sagar command, which is about 120 km north of Hyderabad. An attempt has been made to make an assessment of waterlogged areas during pre & post monsoon period in the SriRam Sagar command using remotely sensed and field data. IRS-1A-LISS-11 digital data (CCT 's) of April 12 and October 6, 1989 were analysed to assess the waterlogged areas in SriRam Sagar command. The validation of the IRS derived waterlogged area was done with the available water table depth data and other field informations. The result obtained from this study indicate that in April and October, 1989, an area of 388 and 540 sq.km was waterlogged. It is suggested that periodic assessment of waterlogging using remotely sensed data should be carried out in the SriRam Sagar command The IRS data have been proved to be very successful for the assessment of waterlogging. Gray level slicing is useful technique to make an assessment of waterlogged areas in irrigated command area.

1998-01-01T00:00:00Z Jain, Sharad K. Mishra, S. K. Ramasastri, K. S. http://117.252.14.250:8080/jspui/handle/123456789/6707 2023-04-13T14:05:00Z 1998-01-01T00:00:00Z

Title: 3-Remote Sensing in Urban Hydrology. Authors: Jain, Sharad K.; Mishra, S. K.; Ramasastri, K. S. Abstract: The use of remote sensing in studies related to urban hydrology has been widely recognized since the inception of these techniques, particularly in the last two decades, which have seen tremendous urbanization globally. As a result, a bulk of literature is available on the subject. This paper provides in brief a gist of the current applications of remote sensing in urban hydrology, particularly in Indian context, and addresses a range of issues related to urban hydrological systems with a greater emphasis on determination of impervious areas and runoff volumes and rates.

1998-01-01T00:00:00Z