Observational resources

The main TEAMx Observational Campaign (TOC) spanned one complete year from 15th September 2024 to 15th September 2025. The focus of the campaign was the European Alps, with target areas in the Inn Valley (Austria), the Adige Valley (Italy), the Alpine Crest between these two, and the Alpine Foreland in Germany.

The campaign included two Extensive Observation Periods (EOPs), one in winter (20 January – 28 February 2025 ) and one in summer (16 June – 25 July 2025).

(Click on the different areas for more information)

A considerable amount of instrumentation was brought into the target areas during the campaign. Ground-based in situ, remote sensing and aircraft measurements provided detailed information about the three-dimensional structure of the mountain boundary layer: a dense network of meteorological and air quality monitoring stations informed about near-surface conditions (in valleys as well as at crest-top); numerous eddy covariance stations over a range of surface types provided information about near-surface turbulent exchange processes; and atmospheric profilers (including lidars, ceilometers, microwave radiometers and radars), radiosoundings and aircraft measurements offered insights into the structure of the mountain boundary layer and various processes including cross-valley circulations, mountain venting, convection initiation and long-range transport.

The TOC backbone, illustrated in the map below, consists of instrumentation from many institutions that were placed such that the various scientific objectives covering a multitude of phenomena on different scales (see TEAMx White Paper) can be addressed. Detailed considerations about the target areas and measurement strategy are outlined in the Field Observation Plan.

^{Backbone of the TEAMx Observational Campaign (TOC). Only one marker is displayed per site; click on a marker to see the full list of instruments deployed there. Use the menu to select the period: full TOC, winter EOP only or summer EOP only.}

^{Sites of the TEAMx Observational Campaign (TOC) by instrument type. Select an instrument type to show all the sites where it was deployed, and optionally restrict the map to one period: full TOC, winter EOP or summer EOP. Click on a site to see all the instruments deployed there and the periods in which they were active.}