Abstract <p>Estimates of the tropopause height for 1980–2023 have been obtained from the monthly average data of the ERA5 reanalysis and NCEP/DOE II for the atmospheric temperature and (in the case of using the isobaric vertical coordinate) geopotential height on a three-dimensional grid. The algorithm for estimating tropopause height H_tr is refined with the possibility of applying data of high spatial resolution. The estimated multiyear means of tropopause height change from 16–17 km in the tropics to 8–9 km in the polar regions, with only relatively weak nonzonal features. At the same time, interannual variations of H_tr characterized by standard deviations are comparable to the vertical resolution of the used reanalysis data (several hundred meters), reaching 1.5 to 2 km in the subtropical regions and 2 km in the regions of subtropical jets (especially in the winter hemisphere). The peculiarities of variations of the tropopause height with a period of about 4 years are revealed, which can be explained by the influence of El Niño/La Niña events on the regional processes of formation of the deep convection in the atmosphere. Statistically significant linear trends of the tropopause height in the subtropics (several m/yr) are noted.</p>