Introduction and Workshop Objectives

1. Introduction and Workshop Objectives Jay Al-Saadi, NASA GEO-CAPE Program Scientist Laura IraciGEO-CAPE Mission Coordinator Betsy EdwardsGEO-CAPE Program Executive John HaynesGEO-CAPE Applications Lead Barry LeferNASA Tropospheric Composition Program GEO-CAPE 2018 Atmospheric Science Workshop NOAA Center for Weather and Climate Prediction, College Park, MD May 1, 2018

2. GEO-CAPE Mission and Evolution • GEO-CAPE mission concept described in the 2007 Decadal Survey • High temporal, spatial, & spectral resolution geostationary observations to resolve diurnal evolution of North American air quality and water quality • All instrumentation combined on one “dedicated” satellite • GEO-CAPE stakeholders developed an alternative implementation concept (Fishman et al., BAMS, 2012) • Ocean color and atmosphere measurements can be independent • Phased strategy as 2-3 hosted payloads; responsive to limited budget for new mission starts • TEMPO selected 11/2012 as NASA’s first Earth Venture Instrument • PI-led “Explorer” class mission, instrument delivery 2018 • NASA to arrange commercial launch and hosting, expected 2021-2022 • GeoCARB selected 12/2016 as an Earth Venture Mission • NASA’s first geostationary carbon mission, measuring CO2, CH4, CO • Commercial host included in proposal, launch expected early 2020’s • 2017 Decadal Survey reiterates highest priority of air quality mission • TEMPO and its GEO and LEO siblings are identified as components of the “Program of Record” for air quality • All “2007 DS Study Missions,” including GEO-CAPE, directed to wrap up by 9/2018

3. Implications for GEO-CAPE Atmosphere • GEO-CAPE Mission Study, tasked with defining mission requirements and preparing for mission formulation, has been very successful • Activities contributed to capture of 2 new missions associated with GEO-CAPE atmospheric science: TEMPO and GeoCARB • TEMPO measurements are the UV-Vis subset of GEO-CAPE atmosphere • GeoCARB may help partially meet GEO-CAPE requirements for CH4, CO • Aerosol requirements may be met via TEMPO/ABI joint products • We have achieved much of what we advocated, with our science now categorized as “most important” and measurements existing in the “Program of Record” (TROPOMI, TEMPO, GEMS, S4...) • 2017 DS, essentially a gap analysis for Earth observations, does not recommend additional GEO-CAPE type measurements within the decade • The “Designated” aerosols mission is relevant, yet emphasis is global lidar/polarimeter • 2 “Explorer” class missions are relevant: GHG, O3 and trace gas vertical profiles • Our work for the next decade is to deliver the science and applications • TEMPO and GeoCARB are pathfinders, will they show the need for sustained observations? What gaps will the next DS identify? • Global emphasis and constellation activities are critical

4. Charge to workshop participants • Provide summary inputs for the GEO-CAPE summative report due at the end of September • Identify the most significant accomplishments • Summarize capabilities developed • Identify gaps and ongoing needs • Develop forward-looking recommendations, e.g.: • Activities needed to ensure that the "Program of Record" succeeds in meeting the DS2017 science and applications goals for air quality • Sustaining interaction with user communities to help prepare for the use of “GEO-CAPE” data in integrated observing systems • Sustaining collaborations on synergistic science, data products, calibration/ validation, and potential future missions • Begin establishing priorities and resource estimates • Identify leveraging and other opportunities for accomplishing these recommendations