Impressions

2021

Predicting Tmax from latest radiosonde observations

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Published:

In February 2021, in the midst of the second epidemic wave, Doruntina Hoxha joined our atmospheric research group at UL FMF. Welcome, Doruntina! Doruntina will be working on the use of machine learning in subseasonal prediction. Her first task was to evaluate the impact of nighttime radiosonde measurements of temperature and relative humidity on the Tmax and Tmi prediction at the same station for the same day (day 0), the next day (day 1) etc. In the distant future, the neural networks might be able to predict the weather evolution directly from the measurements, without the NWP.

2020

Current state of the water vapour feedback

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Published:

The CO2 - water vapour positive climate feedback is real and active. The figure below is showing the meridional-vertical cross-section of the zonally-averaged specific humidity increase based between 1980 and 2018 for ERA5 reanalyses of the European Centre for Medium-range Weather Forecasts (ECMWF). The yearly-average specific humidity at certain grid point was computed for every year between 1980 to 2018 to estimate the linear trend and the difference between the trendline values are plotted.

2019