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Bhubaneswar: With Odisha's Capital City now ruling as the hottest city in the country, and when the setting in of hot day conditions in the winter (January - February is regarded as winter by IMD) has sparked a debate over Odisha growing warmer, the big fact to the fore is Odisha has indeed grown warmer in the last 100-years, but only in parts.
During the period of 1901 - 2020, the mean temperature anomaly trend of many districts in western and northern Odisha adjoining Jharkhand had grown warmer by 0.5degrees Celsius vis-a-vis the average mean temperature for the last 100 years. (1901-2020).
On the contrary, the mean temperature anomaly trend for coastal districts, including Bhubaneswar, had not shown any change (neither increased nor decreased) (see the image below)
Such a 'warming' fact on Odisha has been brought to the fore by the IMD's Annual Climate Summary 2020 report released recently.
ODISHA VS INDIA
As per the report, when the mean temperature of the country had shown an anomaly of 0.37 deg C vis-a-vis the average mean temperature for a period of 100 years, the anomaly (rise) has been 0.5 deg C in parts of Odisha (especially the region of Sundargarh, districts adjoining Jharkhand and Chhattisgarh).
The anomaly trend in south Odisha districts is in sync with the national trend, whereas coastal districts, including Bhubaneswar, had not shown any anomaly (rise or fall).
"The annual mean temperature anomaly trend over a period of 100 years at some places in West Bengal, Jharkhand, Bihar and Odisha have been highest at 05 deg C," finds the report.
2020 WINTER IN ODISHA
The 2020 winter had been warmer for Odisha. The maximum and minimum temperatures in November and December had been higher than the average of 1981-2010.
The IMD Pune report shows that the maximum and minimum temperature anomaly trend in January 2020 had also been higher than the average normal maximum temperature of 1981-2010. (see the images)
February: However, February 2020 had been cooler. The maximum and minimum anomaly trend in Odisha has been below the average normal recorded during the period of 1981-2010.
As per IMD charts, 2021 Jan and Feb are warmer. And Feb 2021 in Odisha has been the warmest after a gap of 5-years.
2020 SUMMER IN ODISHA
The maximum and minimum temperature anomaly for the summer in the State last year had been lower than the average trend for the period of 1981-2010. (see the image below).
2020 MONSOON IN ODISHA
In tandem with the national trend, where 2020 monsoon months were regarded as the sixth warmest in Indian weather history, the maximum and minimum temperature anomaly trend in 2020 had been higher in the State vis-a-vis the average of 1981-2010.
September had been the hottest month since 1901 for the country.
2020 AUTUMN IN ODISHA
In October, the anomaly in minimum temperature is quite warmer than the average of 1981-2010. (see the image).
