Flood forecasting is an important activity during monsoon, considering the huge and increasing flood prone area, flood frequency, intensity and flood damages. Accurate and timely flood forecasting can hugely help reduce the damages due to floods. Central Water Commission (CWC) is the only agency responsible for flood forecasting in India. To understand the CWC’s flood forecasting better, we have compiled the list of the various flood, inflow forecasting sites and flood monitoring sites in India.
In this compilation, we have given state wise list of CWC’s level forecasting, flood monitoring and inflow forecasting sites in North India, comprising of Union Territories Jammu & Kashmir, Ladakh, Chandigarh, Delhi and states of Himachal Pradesh, Uttarakhand, Punjab, Haryana and Uttar Pradesh. It includes available details like name of river, sub basin, Warning level (WL), Danger Level (DL), High Flood Level (HFL), Full Reservoir Level (FRL), Maximum Water Level (MWL), as applicable. As we see below, there are many gaps in this basic information for the sites that are part of CWC’s list. A similar zonewise overview of CWC’s sites was compiled in 2018 and 2019, which can be seen here: Overview of CWC Flood Forecasting Sites 2018: North India; Overview of CWC Flood Forecasting Sites 2019: North India. We have brought this updated compilation for 2020 as there are large number of changes.
Continue reading “North India; CWC Flood Forecasting Sites 2020; New Website Old Problems”
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”
कमल पंवार का अतिथि लेख
28 जुलाई के सबेरे तीन बजे के आस पास गाँव में कोलाहल मच गया। भारी बारिश के बीच गाँव के ऊपरी हिस्से और बगल वाले गदेरे में अचानक भारी गाढ़ आ गई। कुछ ही देर में तेज गर्जन से मलबे की धारा गाँव के पास से होकर गुजर गई और अपने पीछे बर्बादी का भयानक मंजर छोड़ गई।
क्षेत्र के बारे में
मैं चमोली जिले के बूरा, पडेर गाँवों की बात कर रहा हूँ। ये गाँव तिमदो तोक, विकासखंड घाट में पड़ते हैं। इन गाँवों की कुल आबादी लगभग 5000 है। केवल बूरा गाँव ही लगभग 2 किलोमीटर के क्षेत्र में चार अलग-अलग भागों च्याना, चांजलि, सीमार बसा है। बूरा से ऊपर की ओर उत्तर पश्चिम दिशा में पडेर गाँव लगभग दो किलोमीटर दूर है।
Continue reading “उत्तराखंड: जब मेरे गांव में बादल फटा”
Finally, Uttrakhand government on July 25, 2020 has removed illegal mining bridge on Yamuna river in Haripur, tehsil, Dehradun. The bridge across the Yamuna River was built by the illegal sand miners on culvert pipes in the last week of May 2020 hindering the river flows. It is not clear if the state government took any punitive or deterrent steps against those responsible, or did the government just quietly removed the bridge at its own expenses.
Continue reading “Uttarakhand: Finally, Yamuna illegal bridge gone. But will govt learn?”
During the just concluded first half of the South West Monsoon 2020, India received 453.3 mm rainfall, just 1.1 mm above the normal rainfall of 452.2 mm during the period. The Surplus of 18% rainfall that India received in June 2020 has thus been wiped out by the 9.9% deficit in July rainfall. Normal rainfall in July 2020 is 285.3 mm, while actual rainfall was 257.1 mm. IMD does not provide monthly figures of rainfall for different states, sub divisions and river basins, which it should along with comparison with respect to normal rainfall and rainfall last year.
To get July 2020 rainfall, we will need to use the figures given in this article along with the figures of June 2020 rainfall (see: https://sandrp.in/2020/06/30/district-wise-rainfall-in-india-in-june-2020/). The district wise figures of June-July 2020 rainfall can be seen in this PDF file from IMD: IMD DISTRICT WISE RAINFALL FROM JUNE 1 TO JULY 31 2020.
Continue reading “District wise Rainfall in India in June July 2020”
Locals of Vikas Nagar tehsil in Dehradun have shared revealing and disturbing images and videos of riverbed mining activities done in Yamuna river over past couple of months. Though in wake of ongoing monsoon the mechanized extraction of riverbed minerals (RBMs) has seen a halt since July 01, 2020, the miners have left an illegally made makeshift bridge on Yamuna river. And that’s cause of worry for local people.
“Since May we have been requesting local administration not to allow deep, in-stream and mechanized mining in Yamuna river compromising rivers flow as it could change river course and create damages during floods. But all our pleas fell on deaf ears”, says a local villager on the condition of anonymity.
He further says that, a causeway bridge built across river in the last week of May 2020 to transport the minerals has been left unattended which could lead to a flood disaster if not safely removed immediately.
Continue reading “Uttarakhand govt must remove illegal bridge on Yamuna to prevent flood disaster”
Here we present the rainfall figures from India Meteorological Department in the just concluded month of June 2020, the first month of SW Monsoon 2020. The overall rainfall at all India level in June 2020 was 196.2 mm, 18% above normal rainfall in the month at 166.9 mm. It was 33% deficit last year.
This is India’s wettest June 12 years, The Times of India reported on July 1, 2020. Agriculture Ministry Data shows that sowing is 68% higher at 31.56 m ha. The June rainfall was 202 mm in 2008, the rainfall this year is the highest since then. All four IMD regions (Northwest, Central, South, East & NE) have recorded surplus rainfall, the surplus is the highest in Central (30.5% surplus) and E-NE (15.7%) regions. North West India had the lowest surplus at 3.5%. IMD Head Mrutyunjay Mohapatra said that whole of India was covered by monsoon on June 26, 12 days ahead of the normal date of July 8.
State wise rainfall Three states had large excess rainfall (above 60% surplus rainfall), namely Bihar, Madhya Pradesh and Sikkim. Eight states/UTs (Union Territories) had excess rainfall (20-59% surplus): Assam, Meghalaya, UP, Chhattisgarh, Maharashtra, Telangana, Andhra Pradesh & Andaman and Nicobar. Nine had deficient rainfall (20-59% deficit): Lakshadweep, Mizoram, Manipur, J&K, Ladakh, Himachal Pradesh, Delhi, Dadar & Nagar Haveli. Rest of India had Normal Rainfall. Continue reading “District Wise rainfall in India in June 2020”
This past week we just completed seven years since the worst ever flood disaster in Himalayas, the Uttarakhand-Himachal Flood disaster that got launched with the massive unseasonal rainfall during June 15-17, 2013, along with the Glacial Lake Outburst Flood from Chorabari glacier upstream from Kedarnath. It was a massive wake up call.
To briefly recall, that unprecedented rainfall occurred when monsoon had not even set in Uttarakhand and neighbouring Himachal Pradesh. The first thing that strikes about this disaster where by official accounts over 6000 people died and by unofficial accounts over 20 000, is that we do not even have a comprehensive report from the government about this disaster. It would have told us a lot of things, including what we can learn from this disaster.
Second big thing that strikes is that big dams and hydropower projects, both due to their construction and operation impacts, both completed and under construction projects played a big role, as brief SANDRP video films in English and Hindi shows. But we continue to play with the Himalayas, the Ganga and lives of the lakhs of people by pushing more dams and such destructive activities (e.g. Char Dham Highways) in the fragile mountains without even honest impact assessments.
Continue reading “DRP NB 22 June 2020: Seven years after Uttarakhand Disaster: Any lessons learnt?”
India Meteorological Department (IMD) divides a water year (June 1 to May 31) into four seasons: Monsoon: (June 1 to Sept 30), Post monsoon (Oct 1 to Dec 31), Winter (Jan 1 to Feb 28/9) and Pre Monsoon (March 1 to May 31). For rainfall during all these seasons, IMD’s hydro-meteorological website[i] provides a lot of data on daily basis, including daily district wise rainfall, state-wise, sub division wise and river wise daily rainfall maps among many other weekly, monthly and seasonal products. However, one problem with it is that none of this information is achieved. So if you missed seeing or downloading available data on any date, there is no way to look at it even next day. This is even true of the seasonal rainfall maps, unfortunately.
Most observers look at the monsoon rainfall data, which is clearly the most important season, without doubt. However, the rainfall in other seasons is also very important from a number of perspectives.
Here we are giving a detailed account of the pre-monsoon season rainfall that India received in the season just ended on May 31, 2020, including state wise, sub division wise, river wise and also district wise figures. Along with it, we also provide the figures of post monsoon figures for the just concluded water year. For the winter season (Jan-Feb 2020) we have only the figures for Jan 2020 since we missed downloading the Feb 2020 figures. We had already provided the monsoon 2019 figures through two blogs in October 2019[ii].
Continue reading “State wise rainfall Pre Monsoon 2020 & Post monsoon 2019”
उत्तराखंड के पर्वतीय इलाकों में प्राकृतिक जल स्रोत हजारों गांवों की जल जीवन रेखा है। इन्हें पन्यारा, नौला, छौई, धारा इत्यादि नामों से जाना जाता है। यह जल स्रोत प्राचीन समय से ही गांव में पीने एवं अन्य घरेलू आवश्यकताओं के लिए जलापूर्ति का मुख्य जरिया रहे हैं।
दुख की बात है कि बदलते दौर, जीवनशैली में आए बदलाव और पाइपलाइन आधारित पेयजल आपूर्ति के चलते, ये धरोहर पहाड़ समाज की अनदेखी और सरकार की उपेक्षा का शिकार हो रहे हैं। अगर इन जल स्रोतों को सहेजा जाये तो ये आज भी उतने ही प्रभावी एवं उपयोगी साबित हो सकते हैं। पौड़ी गढ़वाल के पोखरी गांव के युवाओं का इसी दिशा में एक काबिलेतारीफ प्रयास है। विश्व पर्यावरण दिवस 2020 की थीम प्रकृति का समय[i] के अवसर हमने महसूस किया कि इन युवाओं का प्रयास सबके सामने उजागर किये जाने लायक है।
Continue reading “विश्व पर्यावरण दिवस 2020: उत्तराखंड में गांव के जल स्रोतों के संरक्षण में जुटे पोखरी के युवा”