EC-11. Coastal Urban Plume Dynamics Study (CUPiDS)

Abstract
Nearly 40 % of the U.S. population live in coastal areas. Most of the large metro areas in the U.S. are located in the coastal region. Coastal counties account from more than 9.5 trillion in goods and services annually. Thus, the unique meteorology of the coastal area, where different properties of land and sea meet disproportionately affect a larger share of U.S. population and economy. Local air quality and temperatures are strongly affected by the coastal meteorology. The land-sea breeze circulation can redistribute pollutants in shallow marine boundary layers, build up pollutants along the coast lines and also transport pollutants back to land where it can interact with freshly emitted pollutants. The combination of large emissions, due to large population and economic activities, and unique meteorology of the coastal areas often result in poor air quality. In order to better understand coastal meteorology and how it affects air quality in the New York City region, Coastal Urban Plume Dynamics Study (CUPiDS) will be conducted from 1 July – 15 August 2023. An airbone scanning Doppler lidar will be deployed on a NOAA Twin Otter aircraft to measure the vertical and horizontal structure of the evolving wind field along the flight track. The aircraft will also be equipped with sensors for mapping column amounts of NO2, formaldehyde, and glyoxal, and insitu NO, NO2, NOy, O3, CO, CO2, CH4, and H2O to help in identification of polluted layers, and understand ozone formation chemistry in the region. The CUPiDS payload is also very well suited for evaluation of geostationary observations from the recently launched Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument, which is expected to make its first measurements this summer. CUPiDS will closely coordinate with the NOAA CSL Atmospheric Emissions and Reactions Observed from Megacities to Marine Areas (AEROMMA) mission, the NSF’s Greater New York Oxidant Trace gas Halogen and Aerosol Airborne Mission (GOTHAAM), the NASA’s Synergistic TEMPO Air Quality Science (STAQS) and other activities in the New York City area this summer.