The observational effort for characterising turbulence and transport processes on the pre-Alpine range of Monte Baldo during the TEAMx Observational Campaign.

We present the intensive field campaign conducted from mid-June to mid-October 2025 on Monte Baldo (Italian Pre-Alps) within the TEAMx programme, aimed at improving process understanding and model representation of mountain boundary-layer exchanges. This effort was driven by the DECIPHER project, which aims at disentangling mechanisms controlling atmospheric transport and mixing processes over mountain areas at different space- and timescales.Measurements targeted a steep (~25°), east-facing, grass-covered slope in the southern Monte Baldo range, selected for its regular topography and pronounced diurnal cycle of thermally driven slope winds. The setting also enables investigation of coupling at the mountain–plain interface, linking local slope circulations to the adjacent lowland atmosphere in the Po Valley.A coordinated suite of instruments captured processes from the surface layer to the lower troposphere and their interactions across scales. Near-surface thermodynamic variability and turbulent exchange were monitored using multi-level flux towers and a slope-wide network of thermohygrometers. Variability in aerosol and particulate matter was measured using co-located mass and optical sensors. Along- and cross-slope winds were observed with multiple wind lidars, while boundary-layer and lower-tropospheric profiles were obtained with a tethered balloon system and a Raman lidar. The surface heat budget was characterized using radiation measurements together with soil temperature and moisture observations. Complementary observations included high-frequency near-surface turbulence profiling and distributed soil-moisture monitoring using a cosmic-ray neutron sensor.This contribution details the observational setup, characterizes the regional setting, and illustrates the potential of the dataset for evaluating slope-wind structure and the associated surface fluxes, boundary-layer mixing, and exchange pathways between mountains and adjacent plains.