Roxy Koll ⛈ Profile picture
Oct 5 8 tweets 5 min read
1/ Here's an animated journey of the #Monsoon under #ClimateChange.

The New York Times story on the changing monsoon:
nytimes.com/interactive/20…
2/ Through animations, snapshots from life, emotions and research, Henry Fountain and team @ The New York Times narrate the story of a changing monsoon.

—and what it means for us—and what we can do about it.

@henryfountain @nytimes
3/ The story covers the monsoon research at IITM...

@iitmpune @moesgoi
4/ The forecast efforts from IMD and monsoon history...

@KumarJenamani @Indiametdept @moesgoi @UlkaKelkar
5/ The rain monitoring through schools and colleges in Kerala...
6/ ...and the river monitoring and flood warning system run by the Meenachil River and Rain Monitoring network via these schools and colleges.
7/ Extreme rainfall events were picked up by the school rain gauge (190 mm rain on 17 Oct 2021).

Rain measurements at the hills provide an easy way to provide warnings for river floods downstream. These warnings have already saved the lives of several families during floods.
8/ Here's the open access version of the NYT article on monsoon:
nytimes.com/interactive/20…

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with Roxy Koll ⛈

Roxy Koll ⛈ Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @rocksea

Apr 2
1/ March 2022 was India's hottest March in recorded history (1901-2022).

Source @Indiametdept
2/ Where in India did the heat go? Almost everywhere!

Source @Indiametdept
3/ Over the last few decades, global warming has been on an accelerated pace and its marks can be seen in ANY SINGLE DAY of global weather since the 2000s. Generation Z has never lived a day without feeling the influence of global warming.

Image Source @ClimateCentral
Read 9 tweets
Aug 9, 2021
1/ The climate has changed, forever. Humans have caused it and our commitments are insufficient to bring the curve down. This is a curve that we are not flattening. Climate change will continue and intensify for centuries, if not a few thousand years into the future. #IPCCreport Illustration by Juby Aleyas Koll
2/ The global mean temperature will cross the 1.5°C limit in the current decade or next, and the 2°C during 2040–2060. This is because the nationally determined contributions (NDCs) submitted by nations via Paris Agreement are insufficient to flatten the curve.
3/ Absorbing 93% of global warming heat, the oceans have warmed and acidified, and oxygen levels have declined since the 1970s. Ocean warming might increase four to eight times by 2100. These changes are irreversible and will last for centuries if not a millennium or more.
Read 9 tweets
Jun 1, 2021
1/ With climate change, the storyline has changed for Mumbai and the coastline of India. This thread discusses how storms surge from intense cyclones, heavy rains, and sea-level rise are all overlapping—to create prolonged large-scale floods.
#MumbaiMustPrepare @MumbaisMagic Image: Liam Reading, American Geophysical Union (AGU)/Eos.
2/ Arabian Sea is brewing more intense cyclones than ever. Tauktae was the most intense cyclone (220 km/hr) that came very close to Mumbai. Cyclones drive storm surges—huge waves (5 m high) that push water onto the land, flooding the coast.
◉ Flood = storm surge
3/ Cyclones are bringing more rains than ever. Global warming has made more water available as warm air holds more moisture. Tauktae brought heavy rains of 230 mm in a day (SantaCruz, Mumbai), an all-time record for May.
◉ Flood = storm surge + rain water.
Read 12 tweets
Jun 1, 2021
IMD's seasonal forecast today indicates normal monsoon rainfall this year. This image shows how important are the oceans for the monsoon—and ocean observations for monsoon forecasts. The tentacles of the Indian, Atlantic, and Pacific oceans have a tight grip on the monsoon.
Review on why we need to invest more on ocean observations for understanding monsoon, cyclones, and severe weather events.
journals.ametsoc.org/view/journals/…
Reference for the IITM study with the octopus figure: "Unraveling the Mystery of Indian Summer Monsoon Prediction: Improved Estimate of Predictability Limit"
doi.org/10.1029/2018JD…
Read 4 tweets
May 31, 2021
150 Years of All India Summer Monsoon Rainfall.

Count the drought and wet years during the last 20 years. When was the last time that we got a wet year?

Data Source: IMD. Compiled by IITM.

1/5
All India Rainfall (AIR) shows multi-decadal variations, with a slump in recent decades. Decline in rainfall is more evident at regional levels—denoted by the blue colors.
Reference: nature.com/articles/ncomm…

2/5
The decline in total rainfall coincides with an increase in heavy rains across many parts of India—denoted by the yellow-red colors.
Reference: nature.com/articles/s4146…

3/5
Read 9 tweets
May 13, 2021
Cyclone along the India-Pakistan border. IMD/global forecasts indicate that the low-pressure system in the Arabian Sea will develop into Cyclone #Tauktae on 16 May, move close to the west coast, and advance to the Indo-Pak north of Gujarat. Heavy rains expected along the track.
IMD weather forecast bulletins are available here:
mausam.imd.gov.in/imd_latest/con…
INCOIS-IMD joint bulletins are available here:
incois.gov.in/WEBSITE_FILES/…
Observed and forecasted track from IMD, along with wind distribution on the coast.
IMD bulletin on 14 May: mausam.imd.gov.in/Forecast/marqu…
Read 4 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us on Twitter!

:(