Groundwater storage and depletion trends in Tamil Nadu State, India
Groundwater irrigation is the most predominant method used across India. The south Indian state of Tamil Nadu is one of the largest producers of agricultural products, and is largely dependent on groundwater for irrigation. The impact of increased irrigation due to intensification of agricultural ac...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/77499 |
| _version_ | 1855519433797140480 |
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| author | Chinnasamy, Pennan Agoramoorthy, G. |
| author_browse | Agoramoorthy, G. Chinnasamy, Pennan |
| author_facet | Chinnasamy, Pennan Agoramoorthy, G. |
| author_sort | Chinnasamy, Pennan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Groundwater irrigation is the most predominant method used across India. The south Indian state of Tamil Nadu is one of the largest producers of agricultural products, and is largely dependent on groundwater for irrigation. The impact of increased irrigation due to intensification of agricultural activities on groundwater levels has not been well researched, both spatially and temporally. Hence this study has used remote sensing data from NASA’s Gravity Recovery and Climate Experiment and the Global Land Data Assimilation Systems to assess the total change in groundwater storage across the state of Tamil Nadu over a period of 11 years, from 2002 to 2012. The results show groundwater depletion at the rate of 21.4 km3 yr-1, which is 8% more than the annual recharge rate (19.81 km3 yr-1) owing to the total rainfall of 1016 mm yr1. Maximum depletion was observed in 2008, while the least depletion was observed in 2002 with rates of 41.15 and 0.32 cm yr-1, respectively. Districts such as Dharmapuri, Vellore and Thiruvannamali encountered intense groundwater depletion. Observed spatiotemporal groundwater storage will benefit India’s water resource managers and policymakers for the future management of groundwater resources to enhance food and water security. |
| format | Journal Article |
| id | CGSpace77499 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace774992025-06-17T08:23:26Z Groundwater storage and depletion trends in Tamil Nadu State, India Chinnasamy, Pennan Agoramoorthy, G. groundwater depletion groundwater recharge water storage water resources irrigation water rain dams agriculture green revolution soil moisture remote sensing satellite surveys sustainability models Groundwater irrigation is the most predominant method used across India. The south Indian state of Tamil Nadu is one of the largest producers of agricultural products, and is largely dependent on groundwater for irrigation. The impact of increased irrigation due to intensification of agricultural activities on groundwater levels has not been well researched, both spatially and temporally. Hence this study has used remote sensing data from NASA’s Gravity Recovery and Climate Experiment and the Global Land Data Assimilation Systems to assess the total change in groundwater storage across the state of Tamil Nadu over a period of 11 years, from 2002 to 2012. The results show groundwater depletion at the rate of 21.4 km3 yr-1, which is 8% more than the annual recharge rate (19.81 km3 yr-1) owing to the total rainfall of 1016 mm yr1. Maximum depletion was observed in 2008, while the least depletion was observed in 2002 with rates of 41.15 and 0.32 cm yr-1, respectively. Districts such as Dharmapuri, Vellore and Thiruvannamali encountered intense groundwater depletion. Observed spatiotemporal groundwater storage will benefit India’s water resource managers and policymakers for the future management of groundwater resources to enhance food and water security. 2015-05 2016-11-01T13:39:33Z 2016-11-01T13:39:33Z Journal Article https://hdl.handle.net/10568/77499 en Limited Access Springer Chinnasamy, Pennan; Agoramoorthy, G. 2015. Groundwater storage and depletion trends in Tamil Nadu State, India. Water Resources Management, 29(7):2139-2152. doi: https://doi.org/10.1007/s11269-015-0932-z |
| spellingShingle | groundwater depletion groundwater recharge water storage water resources irrigation water rain dams agriculture green revolution soil moisture remote sensing satellite surveys sustainability models Chinnasamy, Pennan Agoramoorthy, G. Groundwater storage and depletion trends in Tamil Nadu State, India |
| title | Groundwater storage and depletion trends in Tamil Nadu State, India |
| title_full | Groundwater storage and depletion trends in Tamil Nadu State, India |
| title_fullStr | Groundwater storage and depletion trends in Tamil Nadu State, India |
| title_full_unstemmed | Groundwater storage and depletion trends in Tamil Nadu State, India |
| title_short | Groundwater storage and depletion trends in Tamil Nadu State, India |
| title_sort | groundwater storage and depletion trends in tamil nadu state india |
| topic | groundwater depletion groundwater recharge water storage water resources irrigation water rain dams agriculture green revolution soil moisture remote sensing satellite surveys sustainability models |
| url | https://hdl.handle.net/10568/77499 |
| work_keys_str_mv | AT chinnasamypennan groundwaterstorageanddepletiontrendsintamilnadustateindia AT agoramoorthyg groundwaterstorageanddepletiontrendsintamilnadustateindia |