Data & Monitoring
GMBI dynamics since 1854, regional background levels in microthaums, operational bulletins from the observing network and a description of the thaumometer calibration methodology.
Open the dashboard →Scientific Publications
Peer-reviewed papers by Institute staff and affiliated research groups on thaumometry, dethaumization processes and residual charm activity.
Publication catalogue →Press Centre
Official statements, press releases, annual report materials and announcements of international events held under the auspices of the Institute.
Latest releases →Current situation
According to data from the station monitoring network, the annual mean GMBI for the 2025 observation year stood at 2.74 points, 0.054 points below the previous year's figure. The rate of decline remains within the forecast corridor approved by the inter-agency working group on medium-term modelling; however, the persistent exceedance of the median trajectory in the Northern Hemisphere requires, in the assessment of the Department of Forecasting, an additional observation cycle.
The Institute reminds the public that at the current background level — approximately 27 µTh in the global mean — spontaneous manifestations of household-scale charm activity are statistically excluded. Reports of suspected anomalous background surges are accepted around the clock via the hotline channels and are subject to mandatory instrumental verification.