DRP News Bulletin

DRP NB 19 Oct 2020: India Rivers Week 2020: IS SAND MINING KILLING OUR RIVERS?

India Rivers Week (IRW) Organising Committee is excited to announce that the theme of the forthcoming annual event IRW 2020 will be: “Is Sand Mining Killing our Rivers?”. As part of IRW-2020, India Rivers Forum is organizing a series of Dialogues (digitally). This includes four regional dialogues focusing on North (Oct 31), South (Nov 7), West (Nov 12) and East (including North East: Nov 21)) India, and the final one (Nov 28) focusing on Sand Mining as a National issue.

Sand mining or mining of River Bed Material (RBM, including sand, gravel, boulders) has a huge impact on Rivers, in multiple ways: physical, ecological, livelihood impacts among others. While sand is also sourced from sources other than rivers, IRW 2020 will focus on sand sourced directly or indirectly from rivers. Sand is by definition, a key ingredient of the rivers. It provides habitat for multiple species of the biodiversity in the river. It provides both sub surface storage space and a mechanism to recharge the groundwater. The sand, along with silt, clay, pebbles and boulders are part of the river and are supposed to reach the deltas and provide a key existential medium in floodplain and deltas. To achieve that, sustaining river connectivities is very important.

Continue reading “DRP NB 19 Oct 2020: India Rivers Week 2020: IS SAND MINING KILLING OUR RIVERS?”
Cloud Burst · Dams

Cloud Bursts in Indian Himalayan Region in Pre-monsoon & Monsoon 2020

The Indian Himalayan region has been facing increased cloud burst incidents for past many years. These events are followed by flash floods, landslides causing widespread damages to human lives and properties. However the forecasting, monitoring and management efforts are lagging far behind. This state wise overview attempts to understand the trend and resultant losses from such incidents during the pre-monsoon (Apr-May) southwest monsoon season (June-Sept) 2020.

SANDRP has been highlighting the issue since 2018. The details of these can be seen by exploring the hyperlink of Uttarakhand in 2018 and 2019, Himachal Pradesh 2019, Jammu and Kashmir and North East 2019.

Continue reading “Cloud Bursts in Indian Himalayan Region in Pre-monsoon & Monsoon 2020”
Floods

Rivers That Reached New Highest Flood Level during Monsoon 2020

Flooding in Madhya Pradesh, late August 2020. Photo: MP Govt., flood list.

In 2020, south west monsoon season when rainfall was 8.74% above normal, rivers reached new Highest Flood Levels (HFLs) at least at 37 locations across the country, as per information available to SANDRP. Maximum 13 such instances come from Central and East India, each. Five instances happened in South India, three in North India and two in North East India. This article provides wise details and hydrographs of all these sites.

SANDRP has been tracking the Highest Flood Level (HFL) breach incidents during monsoon season. The analysis of such HFL breaches in 2018 and 2019 are available on our website. In 2018 we had listed 25 such instances though SW Monsoon rainfall was 9.4% below normal. In 2019 we listed 37 such instances when the SW Monsoon rainfall was 10% above normal.

Continue reading “Rivers That Reached New Highest Flood Level during Monsoon 2020”
Monsoon · Rainfall

Monsoon 2020: District Wise Rainfall

India received 957.6 mm rainfall in Just concluded South West Monsoon 2020, during the scheduled 4 month monsoon from June 1 to Sept 30, 2020. This is 8.74% above normal monsoon rainfall of 880.6 as per India Meteorological Department (IMD). This is considered ABOVE NORMAL rainfall, since rainfall is in the range 4-10% above Normal rainfall. This sounds good at national level, but the situation on ground could be very different, if we see the rainfall across the country.

It is noteworthy as per even IMD, monsoon has not yet withdrawn from most parts of the country. But IMD closes its monsoon rainfall account at 0830 hours on Sept 30, so all rainfall after that hour has to be counted in “Post Monsoon” rainfall book, even though the rainfall is very much part of monsoon as per IMD.

Continue reading “Monsoon 2020: District Wise Rainfall”
Dams · DRP News Bulletin

DRP NB 14 Sep 2020: How should we define a Normal Monsoon?

IMD is happy to declare a monsoon as normal as long as total quantum of rainfall at national scale is within 4% of what is defined as normal monsoon rainfall during June 1 to Sept 30. Even if this means there is spatially or temporally or both spatially & temporally, the total rainfall or its distribution is abnormal in large parts of the country. It was good to see a national newspaper, asking question if the monsoon is normal even though it’s not temporally normal as was the case in large parts of the country this year.

The IMD normal only assures meteorological normal of national monsoon rainfall within given period. It does not assure hydrologic normal nationally or in different parts of the country, nor agricultural normal rainfall nationally or in different parts: sub divisions, states, river basins, districts, talukas/ tehsils or villages and wards. We clearly need much more realistic and nuanced definition of even meteorological Normal monsoon rainfall, which IMD needs to work on. But as far hydrological or agricultural normal rainfall is concerned, both temporally and spatially, those concerned outside IMD will need to work on.

Continue reading “DRP NB 14 Sep 2020: How should we define a Normal Monsoon?”
Indian Meteorological Department · Monsoon · Rainfall

District wise rainfall in June-Aug 2020 in India

In the ongoing South West Monsoon, India received 44 year old high surplus rainfall of 327 mm in just concluded Aug 2020, 26.6% above normal rainfall of 258.2 mm. This helped the total June-Aug 2020 rainfall to achieve 10% surplus, with actual rainfall 780.3 mm, 69.9 mm higher than normal rainfall of 710.4 mm. In June the country received 18% above normal rainfall and in July it received 9.9% below normal rainfall, the rainfall at the end of June was just 1.1 mm above normal. Thus almost the entire surplus rainfall is thanks to the rainfall during Aug 2020. The rainfall distribution has however, been far from normal that these figures suggest, as we can see from the state wise and district wise figures below.

Continue reading “District wise rainfall in June-Aug 2020 in India”
Urban Water Bodies

PATODI JOHAD: Narela Youth Rejuvenate a dry Pond

The monsoon rains of August 2020 have brought a soothing smile on the faces of villagers working towards revival of Patodi Johad a traditional water body in Narela, a bustling sub-city in North Delhi.

The greenery, cleanliness created over past one year around the pond with joint effort by youth, women, elderly and children have been now complemented by rainwater flooding the pond making it one of best locations in Narela where native plants, water body, blooming garden is thriving.

The sustained efforts by the villagers have not only brought positive change in society by involving people of all ages, but also leading to rebuilding of lost eco-system and improving micro climate. The biggest benefit is slow but sure improvement in ground water table. This account presents glimpses of how this happened.

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Dam floods · Dams · Floods · Monsoon

Central India Heavy Downpour brings back nightmare memories of 2019 Chambal Scare

In a rather unusual development, no less than twenty districts in contiguous areas of Madhya Pradesh, Rajasthan and Gujarat had extremely high rainfall in the 48 hours ending at 830 am on Aug 23, 2020. Three of these districts had over 250 mm rainfall in this period, four others had between 200-250 mm, six each between 150-200 and 100-150 and one between 90-100 mm. This contiguous area broadly drains Mahi river to the West, Chambal to the North, Narmada to the South and Betwa to the East. These rivers, thus are now getting heavy flows, and will continue to get for the next few days, some of it from Chambal and Betwa will also end up in Yamuna and Ganga. It reminded one of the nightmarish memories of Sept 2019 when Gandhi Sagar Dam faced existential crisis and the flood peak downstream reached upto Farakka Dam, as CWC Flood forecasting director Sharad Chandra said in a television discussion recently. Continue reading “Central India Heavy Downpour brings back nightmare memories of 2019 Chambal Scare”

Dams · DRP News Bulletin

DRP NB 17 August 2020: The Contempt of Court case against MoEF

[Feature image: Cartoon on Draft EIA 2020 by Surendra, The Hindu https://www.thehindu.com/opinion/cartoon/cartoonscape-august-12-2020/article32328005.ece (12 Aug. 2020)]

This last week, one Contempt of Court case was deservedly in news, when on the eve of India’s 74th Independence day, the apex Court found public spirited Prashant Bhushan guilty of contempt of Court. Prashant Bhushan’s commitment for the cause of the people and responsible governance of various institutions is beyond question. He is known for being critical of the government and judiciary’s track record and is supported in this by most independent minded persons.

However, there was another contempt case this last week, related to environmental issues, that was not so much in the news. On June 30, 2020, Delhi High Court bench of Chief Justice D N Patel and Justice Prateek Jalan in response to petition by environmentalist Vikrant Tongad had directed, among other things, that Union Ministry of Environment and Forests (MoEF) should translate the Draft EIA (Environment Impact Assessment) Notification of 2020 into all the official languages of India and disseminate widely in ten days. (https://www.thehindu.com/news/cities/Delhi/delhi-hc-extends-public-response-deadline-to-draft-eia-2020/article31951610.ece)

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Dams · Floods

But Why Did Sen Nursing Drain Breach?

On the intervening night of July 18 and 19, Delhi received heavy rainfall spell leaving several areas water logged. In the afternoon of July 19, a video went viral on social media showing collapse of houses along Sen Nursing Nala at ITO, Delhi.

The incident happened due to a breach in right bank of storm water drain at the back of WHO building reportedly damaging about 12 houses of Anna Nagar, a fifty years old slum area located along the left bank of the drain.

Continue reading “But Why Did Sen Nursing Drain Breach?”