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@ipcc_ch reports that b/w 1971 & 2010, oceans absorbed over 90% of the heat gained by the planet due to #globalwarming. This led to #sealevel rise and has also resulted in higher frequency & intensity of #cyclones worldwide. #ClimateChange #MumbaiMustPrepare @mumbaismagic
Indian Ocean has also warmed but what is worrying is the higher rate of #warming in comparison to other global ocean basins. Data shows that Indian Ocean’s rapid basin-wide warming of ~1degC over the last 60 yrs exceeds that of the global average of ~0.7 degC. #MumbaiMustPrepare
Arabian Sea & Bay of Bengal have also seen consistent warming in past decades. The trend in rise in sea surface temperature for BoB has been 0.16C/decade & 0.18C/decade for AS. Arabian Sea indeed has been warming quite rapidly and impacts are for us to see. #MumbaiMustPrepare
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
#MumbaiMustPrepare @MumbaisMagic
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
◉ 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.
◉ Flood = storm surge + rain water.
