Abstract: A field instrument for sampling sulfate and nitrate particulate matter in a controlled chemical environment has been constructed and field tested. The instrument contains HNO3 and NH3 denuders and an ambient air path, all ...

Abstract: The ozonesonde is a small balloon-borne instrument that is attached to a standard radiosonde to measure profiles of ozone from the surface to 35 km with ?100-m vertical resolution. Ozonesonde data constitute a mainstay of ...

Abstract: AbstractThe ozonesonde is a small balloon-borne instrument that is attached to a standard radiosonde to measure profiles of ozone from the surface to 35 km with ?100-m vertical resolution. Ozonesonde data constitute a ...