Home Headlines India Rain and topography triggering flash floods, landslides in Uttarakhand hills, say consultants...

Rain and topography triggering flash floods, landslides in Uttarakhand hills, say consultants – india information


Spells of heavy rain for brief durations, greater catchment areas of streams and topographical circumstances are resulting in cloudbursts, flash floods and landslides within the hilly areas of Uttarakhand, say consultants.

Over 40 individuals have died in rain-related disasters in Uttarakhand within the present monsoon.

Piyoosh Rautela, government director of Catastrophe Mitigation and Administration Centre in Uttarakhand mentioned, “Within the hills, the catchment space of even small streams could be very massive, these streams may be seasonal additionally, however throughout monsoons with heavy rainfall the water spills. This heavy rainfall results in flash floods or rain-induced disasters.”

He additionally mentioned that as a result of topographical circumstances, probability of cloudbursts or flash floods occurring within the hills is extra in comparison with plains.

“The physiography or geomorphic circumstances of the mountains is such that the wind will get a sudden upward thrust which results in cloud formation. However as a result of topography of mountains or valleys, particularly, the winds rise to type clouds after which rainfall happens in a small space or the clouds get trapped in a valley amid mountains because the monsoonal winds are usually not capable of cross the topographic obstacles (mountains). As a consequence of this the rainfall recorded in these areas is excessive resulting in disasters,” mentioned Rautela.

In line with the state catastrophe management room, three cloudburst incidents have been reported to date this yr since June 15 in Pithoragarh district.

Officers from the management room mentioned that 33 individuals have died resulting from cloudbursts and flash floods resulting from heavy rain and 11 have died resulting from landslides throughout the state. Round 18 individuals have been injured resulting from landslides, flash floods and cloudbursts, whereas 4 are lacking.

Officers from the Meteorological Centre in Dehradun mentioned that an incident of rainfall is termed as a cloudburst solely when a specific space receives 100 mm of rainfall inside an hour.

Bikram Singh, director of Regional Meteorological Centre mentioned, “Landslides happen with steady rainfall, it might be resulting from heavy or average rainfall, however cloudbursts resulting in flash floods occur when a specific space receives minimal 100 mm of rainfall inside an hour. This yr, as per rainfall information, 100 mm rainfall has not been witnessed at any explicit location. In 2017, round 9 4mm rainfall was recorded in Dehradun, which was thought of as a cloudburst.”

He added that within the hills, even 50 mm to 60 mm hourly rainfall could cause hurt as water ranges in streams rise resulting in flash floods.

In line with the MeT division, Uttarakhand has acquired 558.6mm of rainfall from June to August 5 in comparison with 655.1 mm for these months. Bageshwar district has acquired the utmost rainfall with a 148% departure from regular rainfall restrict.

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