Table 1.

Summary of Measurement Sites.

Ozone Instrument Name	Instrument Type	Latitude	Longitude	Location Altitude (m above sea level)	Location Description	Inlet Height (m above ground)	Collocation/Deployment
Boulder Atmospheric Observatory (BAO) Tower	UV Absorption Analyzer	40.0500	−105.0004	1584	Tall tower operated by the National Oceanic and Atmopsheric Administration (NOAA)	6	Collocation
SBC-Ref	Photometric Ozone Analyzer	39.9572	−105.2385	1671	Colorado Department of Public Health and Environment (CDPHE) monitoring site	4.3	Collocation
C1	Metal Oxide Sensor	40.0069	−105.2720	1667 (including 15 m from ground to rooftop)	University Memorial Center building—rooftop	1.5	Collocation (at BAO) and Deployment
C2	Metal Oxide Sensor	40.0109	−105.2745	1655 (including 10 m from ground to rooftop)	Continuing Education building—western rooftop	1.5	Collocation (at BAO) and Deployment
C3	Metal Oxide Sensor	40.0080	−105.2742	1666 (including 9 m from ground to balcony	Geography building—south balcony	1.5	Collocation (at BAO) and Deployment
SBC1	Metal Oxide Sensor	39.9572	−105.2386	1671	SBC—nearest to reference monitor	1.5	Collocation (at SBC) and Deployment
SBC2	Metal Oxide Sensor	39.9572	−105.2387	1671	SBC – nearest to trees and more dense foliage	1.5	Collocation (at SBC) and Deployment
SBC3	Metal Oxide Sensor	39.9575	−105.2381	1671	SBC—nearest to road	1.5	Collocation (at SBC) and Deployment
SBC4	Metal Oxide Sensor	39.9574	−105.2383	1671	SBC	1.5	Collocation (at SBC) and Deployment