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Reservoir capacity estimation using SARAL/AltiKa altimetry data coupled with Resourcesat P6-AWiFS and RISAT 1 microwave data
Reservoir water levels extracted from SARAL/AltiKa GDR data for the period 2013-2014 and water spread areas delineated from Resourcesat P6-AWiFS sensor and RISAT 1 microwave data corresponding to SARAL/AltiKa cycles were used for assessment of reservoir capacity in the Mayurakshi reservoir, Jharkhand state, India. It was found that the reservoir capacity based on the SARAL is around 474.62 Mm 3 in comparison to in situ based estimate i.e. around 486.6 Mm 3 , indicating variation of <3%. Further, comparison of these estimates computed using SARAL and in situ with original reservoir capacity (547.59 Mm 3 ) indicated loss of reservoir capacity is around 13.33 and 11.14%, respectively, within a span of 59 years. The hydrographic survey in the year 1999-2000 also proved that the storage capacity has reduced from 547.6 Mm 3 in 1955 to 474.8 Mm 3 indicating loss of nearly 13.3 % of total live capacity over period of 45 years.
Reservoir capacity estimation using SARAL/AltiKa altimetry data coupled with Resourcesat P6-AWiFS and RISAT 1 microwave data
Reservoir water levels extracted from SARAL/AltiKa GDR data for the period 2013-2014 and water spread areas delineated from Resourcesat P6-AWiFS sensor and RISAT 1 microwave data corresponding to SARAL/AltiKa cycles were used for assessment of reservoir capacity in the Mayurakshi reservoir, Jharkhand state, India. It was found that the reservoir capacity based on the SARAL is around 474.62 Mm 3 in comparison to in situ based estimate i.e. around 486.6 Mm 3 , indicating variation of <3%. Further, comparison of these estimates computed using SARAL and in situ with original reservoir capacity (547.59 Mm 3 ) indicated loss of reservoir capacity is around 13.33 and 11.14%, respectively, within a span of 59 years. The hydrographic survey in the year 1999-2000 also proved that the storage capacity has reduced from 547.6 Mm 3 in 1955 to 474.8 Mm 3 indicating loss of nearly 13.3 % of total live capacity over period of 45 years.
Reservoir capacity estimation using SARAL/AltiKa altimetry data coupled with Resourcesat P6-AWiFS and RISAT 1 microwave data
Chowdary, V. M (author) / Sai krishnaveni, A / Suresh Babu, A. V / Sharma, R. K / Rao, V. V / Nagaraja, R / Dadhwal, V. K
2017
Article (Journal)
English
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