Thanks to the availability of satellite data archives covering more than a decade, Permanent Scatterer SAR Interferometry (PSInSAR) nowadays represents one of the most powerful techniques capable of retrieving surface displacements of either natural (rock outcrops) or man made objects (buildings, infrastructures) already present within the surveyed area, acting as permanent radar reflectors.

Urgent need to re-examine quality assurance of dams in the northeast On May 10, the Sangai Express, a local daily from Imphal, reported that parts of the Thoubal multipurpose project had developed cracks. Taking note of the apparent lack of quality construction, Thounaojam Shyamkumar, deputy speaker in the state assembly, said that the dam posed a threat and authorities concerned

Despite a number of breaches in the Narmada main canal over the years, command area ecological concerns are simply not being paid enough attention by the Sardar Sarovar Narmada Nigam.

BY MANOJ ANAND

GUWAHATI, July 18: The Assam government has urged the Union power ministry to include local scientists from the states while carrying out studies on the environmental impact of mega power-generating dam projects in the northeastern states.

Speaking in the state Assembly on Friday, state power minister Pradyut Bordoloi said that there were genuine apprehensions in some districts about potential disasters posed by the large dams in neighbouring Arunachal Pradesh, especially in view of last month's events in Lakhimpur district.

J. Venkatesan

New dam virtually impossible, states affidavit

New Delhi: The Mullaperiyar dam is safe to hold water up to a reservoir level of 142 ft and all medium and long term strengthening measures necessary to hold water up to this level have been carried out, the Tamil Nadu government stated in an affidavit filed before the Supreme Court on Wednesday.

Bangalore: The High Court on Thursday ordered issue of notices to the Irrigation Department officials for violating the court order to peg the leakage of canal of Kestur Post in Maddur taluk. The petitioner, K Madhegowda, who filed the civil contempt petition stated that the court direction dated April 8, 2005 to repair the leakage of the canal is yet to be complied with.

NEW DELHI: The Tamil Nadu government has rejected the conclusion of a recent study made by a two-member Delhi IIT team that the Mullaperiyar dam bordering Kerala and Tamil Nadu is

Both the reports of the Delhi IIT and the Roorkee IIT to be placed before apex court Rs. 1.31 crore sanctioned towards engineering investigations for building new dam THIRUVANANTHAPURAM: The report on a study on probable maximum flood conditions at Mullaperiyar, released by the Delhi IIT recently, doubly reiterated the need for replacing the 108-year-old dam located there, said Kerala Minister for Water Resources N.K. Premachandran.

In India, there are about 30000 dams with large 4050 large dams as per National Register of Large Dams - 2002. Emergency Action Plans (EAPs)/Disaster Management) Plan (DMPs) are, however, not available for most of the completed large dams. The National Water Policy, 2002, recognizing this deficiency, has stressed for preparation of EAP/DMP for all large dams.

Himanshu Kaushik | TNN Viramgam: Residents of Kajipura village of Viramgam taluka are a scared lot since the last 10 days. Ever since they came to know how the swirling waters of Narmada flooded Sujatpura village near Kadi on June 12 due to a breach in the main canal, they are reminded of several breakage in the Saurashtra main canal that passes near their village.

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