TEAMx Observational Campaign Completes Year-Long Alpine Atmospheric Study
An international consortium of more than 40 research institutions conducted the TEAMx Observational Campaign (TOC), a year-long atmospheric measurement effort across the Alps between 2024 and 2025. The campaign deployed instruments at roughly 30 sites along a north-south Alpine transect during two six-week Extended Observational Periods, using ground-based sensors, up to three research aircraft, and unmanned aerial systems. The dataset is expected to advance understanding of mountain atmospheric processes including gravity waves, orographic convection, thermally driven flows, and turbulent exchange.
The TEAMx Observational Campaign (TOC) was carried out as part of the broader international TEAMx programme, which focuses on multi-scale transport and exchange processes in the atmosphere over mountainous terrain. Running from 2024 to 2025, the campaign organized more than 40 research institutions to instrument approximately 30 sites across four target areas in a north-south Alpine transect. Two six-week Extended Observational Periods served as the campaign's intensive measurement phases, during which a combination of ground-based in-situ instruments, remote-sensing systems, research aircraft, and unmanned aerial systems (UAS) were deployed simultaneously. The study targeted several key atmospheric phenomena specific to complex mountain terrain, including gravity waves, orographic convection, thermally driven flows, and turbulent exchange processes. The campaign built upon the existing dense operational measurement network already present in the Alps, augmenting it with research-grade instrumentation. A preprint describing the campaign's science goals, design, and preliminary analyses was submitted to the Journal of the European Meteorological Society in June 2026. The authors indicate that preliminary results already highlight the significant scientific potential of the collected dataset.
What's missing
The paper is a campaign overview and has not yet completed peer review. Key limitations include the absence of finalized scientific results — preliminary analyses are presented but full data processing, quality control, and scientific conclusions from the dataset remain ongoing. The representativeness of the two six-week Extended Observational Periods relative to typical Alpine atmospheric conditions across seasons is not yet assessed. Long-term reproducibility and how the dataset will be made publicly accessible are not detailed in the abstract.
What different sources said
- arXiv physicsCenter
The TEAMx Observational Campaign
Related
Gut Bacteria Enzyme Found to Break Down Heat-Processed Food Compounds, Producing Novel Biogenic Amines
Researchers have discovered that an enzyme in common gut bacteria can degrade N-epsilon-carboxymethyllysine (CML), a compound formed during thermal food processing, producing previously unknown biogenic amines. The enzyme, ornithine decarboxylase SpeC from enterobacteria, acts on CML and related modified lysine derivatives through a low-level 'underground' catalytic activity. This finding suggests a previously unrecognized communication axis between thermally processed dietary compounds and gut microbial physiology, with potential implications for host health.
Full-Length Gene Sequencing Reveals Two Distinct Bacterial Communities in Black-Legged Ticks Expanding Into Canada
Researchers used Oxford Nanopore full-length 16S rRNA gene sequencing to characterize the microbiome of Ixodes scapularis black-legged ticks collected in Nova Scotia, Canada, distinguishing between tick-adapted bacteria and environmentally acquired bacteria. The study comes as I. scapularis — the primary vector of Lyme disease — is rapidly expanding northward into Canada due to climate change. The findings suggest that environmentally derived bacteria in tick microbiomes are not mere contamination, which has implications for how tick microbiome data is collected and interpreted across surveillance studies.
Study Identifies Metabolic Link Between Cell Envelope Stress and Biofilm Formation in Bacteria
Researchers have discovered that the metabolite acetyl-CoA directly inhibits enzymes that degrade the bacterial signaling molecule c-di-GMP, connecting cell envelope biosynthesis stress to biofilm formation in Pseudomonas aeruginosa. The study found that sub-inhibitory concentrations of antibiotics targeting early peptidoglycan biosynthesis — but not other antibiotic classes — elevate c-di-GMP levels by reducing phosphodiesterase activity, with acetyl-CoA competing for the enzyme active site. Because the relevant enzyme domain is broadly conserved across bacterial species, this checkpoint mechanism may be widespread and could have implications for understanding antibiotic-induced biofilm responses.