The global average lower tropospheric temperature (LT) anomaly of version 6.0 for March 2021 was -0.01 degrees. C, well below the value of +0.20 degrees from February 2021. C.
REMEMBER: We changed the 30-year averaging period from which we calculate anomalies from 1991-2010 to 1991-2020. This change does not affect temperature trends.
Punctually, the maximum influence of the current La Nina can finally be felt on the global tropospheric temperatures. The global average anomaly in ocean tropospheric temperature is -0.07 degrees. C, the lowest value since November 2013. The tropical deviation (20N-20S) from the average (-0.29 ° C) is the coolest since June 2012. Australia is the coolest (-0.79 ° C) since August 2014.
The linear warming trend since January 1979 has remained at +0.14 ° C / decade (+0.12 ° C / decade above the globally averaged oceans and +0.18 C / decade above the globally averaged country).
Various regional LT deviations from the 30-year average (1991-2020) over the last 15 months are:
YEAR MO GLOBE NHEM. SHEM. TROPIC USA48 ARCTIC AUST
2020 01 0.42 0.44 0.41 0.52 0.57 -0.22 0.41
2020 02 0.59 0.74 0.45 0.63 0.17 -0.27 0.20
2020 03 0.35 0.42 0.28 0.53 0.81 -0.96 -0.04
2020 04 0.26 0.26 0.25 0.35 -0.70 0.63 0.78
2020 05 0.42 0.43 0.41 0.53 0.07 0.83 -0.20
2020 06 0.30 0.29 0.30 0.31 0.26 0.54 0.97
2020 07 0.31 0.31 0.31 0.28 0.44 0.26 0.26
2020 08 0.30 0.34 0.26 0.45 0.35 0.30 0.25
2020 09 0.40 0.41 0.39 0.29 0.69 0.24 0.64
2020 10 0.38 0.53 0.22 0.24 0.86 0.95 -0.01
2020 11 0.40 0.52 0.27 0.17 1.45 1.09 1.28
2020 12 0.15 0.08 0.22 -0.07 0.29 0.43 0.13
2021 01 0.12 0.34 -0.09 -0.08 0.36 0.49 -0.52
2021 02 0.20 0.32 0.08 -0.14 -0.66 0.07 -0.27
2021 03 -0.01 0.12 -0.14 -0.29 0.59 -0.79 -0.79
The full UAH Global Temperature Report as well as the picture of the global anomaly of the LT grid point for March 2021 should be available here in the next few days.
The global and regional monthly anomalies for the various atmospheric layers we monitor should be available in the next few days at the following locations:
Lower troposphere: http://vortex.nsstc.uah.edu/data/msu/v6.0/tlt/uahncdc_lt_6.0.txt
Mid-Troposphere: http://vortex.nsstc.uah.edu/data/msu/v6.0/tmt/uahncdc_mt_6.0.txt
Tropopause: http://vortex.nsstc.uah.edu/data/msu/v6.0/ttp/uahncdc_tp_6.0.txt
Lower stratosphere: http://vortex.nsstc.uah.edu/data/msu/v6.0/tls/uahncdc_ls_6.0.txt
