New Delhi: The coastal area of India will face a 0.1 meter sea level increase up to 0.3 meters in the next two to three decades due to global warming, with Bhavnagar in Gujarat facing a 0.22 meter increase that can sink its wide area, A Projection by NASA has said.
At sea surface and the impact will be experienced in various levels in cities and other coastal ports such as Kochi, Mormugao, Mumbai, Mangaluru, Chennai, Vizag, and Paradip during the period, showing an online visualization tool for the US Space Agency using projections from the latest report panels Intergovernmental UN about climate change.
It features 12 Indian cities, with Bhavnagar reaching 2040 followed by Kochi (0.15 m), Mormamao, Kandla and Okha (0.13 m in each location) and Mumbai (0.12 m) among the cities of the coastal city And cities in cutting global greenhouse gas emissions are currently scenario from the current level (1995-2014 baseline).
Bhavnagar, in fact, showed a higher increase than the global average, which refers to a sea level increase of 0.14 meters in 2040 and 0.2 meters in 2050 from the current level in the current emission cutting scenario.
Interestingly, this tool shows a decrease (0.05 million) at sea level in Kidderpore (near Kolkata) in 2040 and this small downfall can be attributed to the shift in seawater circulation and other climatological factors because of heating.
Even in the best case scenario (zero-zero emissions in the mid 2050), the level and sequence of changes in sea level is still more or less the same in these cities with small changes at the rate of increase in 2050 compared to 2040 compared to 2040.
Rise is higher in the long run (at 2100) but can be balanced if the world takes in-depth emissions outside the mid-century.
Information through NASA online tools that assess location-based projections can be used by policy makers in making important decisions about economic and public policies to protect local communities from the effects that have the potential to destroy sea level increases in coastal areas.
This will help in taking different adaptation steps, including preparing disaster-tough infrastructure in coastal cities, by looking at the scenario of sea level rise in the future.
NASA tools provide data up to 2150 using different emission cutting scenarios on the map.
IPCC sea level projections are made with data collected by satellites and instruments in the field, as well as computer analysis and simulation.
“But for the first time, anyone will be able to see visualization of how sea levels will change at the local level using new online tools, granularity that is difficult to catch in the IPCC report itself,” NASA said in a statement.
Mumbai, Chennai & 10 other cities to see sea level up in 30 years: NASA
