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Design; operation and characterization of a mobile laboratory for hyperlocal atmospheric research
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DOI：10.5194/amt-19-4201-2026.png)
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Abstract
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Abstract. Mobile laboratories equipped with research grade instrumentation make it possible to accurately observe fine scale (< 10 m) concentration gradients driven by local emissions; chemistry and meteorology. The flexibility afforded in measurement location makes mobile monitoring well suited to local pollution source characterization and rapid response to natural and anthropogenic situations. However; constructing a platform capable of these measurements requires simultaneous consideration of many engineering challenges and previous examples are rarely documented in enough open detail for replication. Here; we present the design process and engineering decisions behind the UC Berkeley Mobile Air Pollution Laboratory (CalMAPLab). Built into a Ford Transit 250 van; the laboratory delivers extensive chemical speciation of air pollution in the gaseous and particulate phases. We characterize the performance of the electrical system; climate control and instrumentation suite for mobile measurements with over 500 h of test driving. In addition; we introduce an open-source data acquisition system with live geospatial visualization that facilitates emissions plume mapping throughout a neighborhood. Our detailed description and open design of each critical component reduces the barrier to entry for high-performance mobile monitoring in hyperlocal atmospheric research.
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