India has seen rather heavy rainfall in October and November 2021, with October All India Rainfall being 33% above normal and November rainfall being record breaking 86% above normal. The combined Oct + Nov Rainfall was 48% above normal, and by Dec 7, as we write this, it is already 53% above normal for the period from Oct 1 to Dec 7, 2021.
While lingering South West Monsoon brought large part of the excess rainfall in first half of October, the unusually active North East Monsoon with continuous supply of moisture from Bay of Bengal has been the main reason for the high rainfall since late October. The onset of La Nina has also contributed to this and with La Nina forecast to remain in place till March 2022, we are in for continued wet spell in South India, it seems. IMD has already forecast above normal rainfall in South Karnataka during Dec 2021 to Feb 2022.
Continue reading “Heavy Rainfall in India in Oct-Nov 2021”
Guest Article by Dr. Sreeja KG and Dr. Madhusoodhanan CG
Climate change and its impacts in the tropics are changing the once familiar landscapes, once certain weather patterns, once secure living spaces beyond recognition. The disasters that can be as local as a tidal surge to national level episodes of cyclones, wildfires and massive floods are being managed in the same administrative mode as has been the practice during the more forgiving past: without training, without relevant real time information, without involvement of the communities and often merely with the strong will and dedication of the field staff and local volunteers. With events far in between, episodic and with time to recoup, we have been spared total and irrevocable breakdown of the system and society. But for how long?
Continue reading “Paddy farming in times of climate change – field notes – A sequel”
The October 2021 flood disasters in two ends of India, in Kerala and Uttarakhand have a lot common. Both happened after the end of normal dates of South West Monsoon 2021. In both cases it is repeat of earlier such disasters in respective states. In both cases, there were reports by expert reports warning about the disasters. In both cases the rainfall events were broadly along the lines warned by the climate scientists, but in both cases the state was ill prepared to cope with it. In both cases, inappropriate human interventions have worsened the disasters in major ways. And in both cases disaster management seems to be absent from ground. In both cases, more precise forecasts about the rainfall quantum and location would have helped. (Feature Image above is from The Hindustan Times, Oct 23, 2021)
Continue reading “Kerala and Uttarakhand floods in Oct 2021: Did the forewarnings help?”
In the just concluded month of July 2021, India received 266.1 mm rainfall, that is 6.73% below normal July rainfall of 285.3 mm, as per India Meteorological Department (IMD). This is in contrast with June 2021 rainfall, that was almost 11% surplus over Normal rainfall. Not only that surplus has been wiped out by the July 2021 deficit, the overall June July 2021 rainfall now is 449 mm, or about 0.7% below normal rainfall of 452.2 mm, as per IMD.
Continue reading “June July 2021 District Wise SW Monsoon Rainfall in India”
In the just concluded June 2021, the first month of India’s South West 2021 monsoon, India received 182.9 mm rainfall, 10.96% or about 11% more than the normal June rainfall of 166.9 mm as per India Meteorological department. In June 2020, the rainfall was 196.9 mm, or about 18% above normal and in June 2019 it was 33% below normal.
Continue reading “June 2021: District wise rainfall in India’s SW Monsoon”
In the just concluded pre monsoon season (March 1 to May 31, 2021) India received 155.2 mm rainfall, 18% above the normal rainfall of 131.7 mm as per the India Meteorological Department (IMD). This is similar to the case in 2020[i] when India received 158.5 mm or 20% above normal rainfall.
Continue reading “Pre Monsoon 2021 season – State Wise, District Wise Rainfall”
In the just concluded Winter Season (Jan 1 2021 to Feb 28 2021), as per India Meteorological Department (IMD), India received 32% below Normal Rainfall. The Normal rainfall in this two-month season is supposed to be quite low at 40.8 mm, but the actual rainfall was just 27.8 mm, which means rainfall was less than 0.5 mm per day in the season. Out of this the Rainfall in January 2021 was 20.2 mm, 17% above the normal rainfall of 17.3 mm. So in February 2021, the rainfall was 7.6 mm, against the normal rainfall of 23.5 mm, so the February rainfall was 68% below normal!
Continue reading “District wise Winter 2021 Rainfall in India”
Guest Article by Dr. Sreeja KG and Dr. Madhusoodhanan CG
January 6, 2021– An unexpected turn of the weather in the afternoon. Rain clouds gathered from the east and a sudden downpour that lasted through the evening. Heady smells of slaked earth and a welcome respite to the day’s heat. The joy of the surprise shower overshadowed by the worry of harvested paddy in gunny sacks stacked on the field bunds. The paddy which had dried to the satisfaction of the procurement agency’s rigorous moisture tests, is now again wet. Drying it will be an added, unforeseen expense.
Continue reading “Paddy farming in times of climate change – field notes”
According to India Meteorological Department (IMD), during the just concluded Post Monsoon Rainfall for 2020, that included rainfall during Oct-Dec months, India received 124.6 mm rainfall, 0.64% above the normal rainfall of 123.8 mm during the period. As per IMD[i] definition, the rainfall was thus normal.
This three-month period from Oct 1, to Dec 31 includes the North East Monsoon that mainly affects parts of South India including Tamil Nadu, Puducherry, Rayalseema, parts of Karnataka and Kerala. IMD declared on Jan 1, 2021 that the of NE Monsoon ended on Dec 31, 2020 with normal overall rainfall: TN had 6% above normal, Karnatak 13% above normal, Puducherry 32% above normal, Andhra Pradesh 33% above normal. However, Lakshadweep had 9% below normal and Kerala 26% below normal. This monsoon provides 48% of the annual rainfall of TN so it is most imp for that state.
The rainfall revived only towards the end of November, mainly due to two consecutive cyclones — Nivar and Burevi — both of which developed in the Bay of Bengal. While Cyclone Nivar crossed the coast close to Karaikal near Puducherry and brought heavy showers for the east and coastal districts of Tamil Nadu, Cyclone Burevi weakened before it reached land.
Continue reading “Post Monsoon 2020: State wise Rainfall”
One of the central themes of the lively presentations and discussion at the South India Sand Mining Dialogue was that the grain of sand is a habitat for so many lives, as so brilliantly put forward by Munmun Dhalaria, one of the panelists. Another key highlight was that Yogeshwaran, the lawyer painfully noted that sand mining laws are neither environment friendly nor people friendly and can be environment friendly only if they are people friendly.
Continue reading “South Zone Sand Mining Dialogue: The grain of sand is habitat for many lives”