This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols from NOAA Ship Ronald H. Brown, collected 20 October to 01 December 2008 during the VOCALs field campaign. The data is divided into eight csv datasets, summarized as follows: Main - Navigation, Meteorology, and Scattering; Chemistry - Aerosol species concentrations at varying particle diameters; AOD - Aerosol optical depth at varying wavelengths; DMS - Seawater Dimethyl sulfide; Radon - Radon Concentration; Size Distribution (APS) - Aerodynamic Particle Size Distribution; Size Distribution (DMPS) - Differential Mobility Particle Size Distribution; Size Distribution - Merged version of the APS and DMPS datasets;

This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols from aboard IBSS R/V Vodyanitskiy, collected 19 June to 23 July 1997 during the ACE-2 field campaign. The data is divided into six csv datasets, summarized as follows: Main - Navigation, Meteorology, and Scattering; Chemistry - Aerosol species concentrations at varying particle diameters; DMS - Seawater Dimethyl sulfide; AOD - Aerosol optical depth at varying wavelengths; Size Distribution (APS) - Aerodynamic Particle Size Distribution; Size Distribution (DMPS) - Differential Mobility Particle Size Distribution

This dataset contains physical and chemical properties of atmospheric marine aerosols from aboard NOAA R/V John Vickers, collected 21 February to 23 March 1992 during the MAGE-92 field campaign. The data is divided into four csv datasets, summarized as follows: Main - Navigation and Meteorology; DMS - Seawater Dimethyl sulfide; Chemistry - Aerosol species concentrations at varying particle diameters; Size Distribution - Particle Size Distribution

This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols from four different cruises aboard WHO R/V Atlantis as part of the NAAMES project. The dates of the four cruises are as follows: NAAMES-1 - 06 November to 29 November 2015 NAAMES-2 - 11 May to 03 June 2016 NAAMES-3 - 30 August to 23 September 2017 NAAMES-4 - 20 March to 12 April 2018 The data from each cruise is divided into multiple csv datasets, summarized as follows: Main - Navigation, Meteorology, Scattering, and Absorption; Chemistry - Aerosol species concentrations at varying particle diameters; Radon - Radon Concentration; CCN - Cloud Condensation Nuclei; Size Distribution (APS) - Aerodynamic Particle Size Distribution; Size Distribution (DMPS) - Differential Mobility Particle Size Distribution; Size Distribution - Merged version of the APS and DMPS datasets

This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols from two different cruises aboard NOAA R/V Surveyor as part of the RITS project. The first cruise (RITS-93) took place from 20 March to 08 May 1993, and the second cruise (RITS-94) from 21 November 1993 to 08 January 1994. The data from each cruise is divided into five csv datasets, summarized as follows: Main - Navigation, Meteorology, and Scattering; Chemistry - Aerosol species concentrations at varying particle diameters; AOD - Aerosol optical depth at varying wavelengths; DMS - Seawater Dimethyl sulfide; Size Distribution - Particle Size Distribution

This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols from two different cruises as part of the WACS project. The first cruise (WACS) was aboard NOAA R/V Ronald H. Brown from 19 August to 28 August 2012. The second cruise (WACS-2) was aboard WHOI R/V Knorr from 20 May to 06 June 2014. The data from each cruise is divided into multiple csv datasets, summarized as follows: Main - Navigation, Meteorology, Scattering, and Absorption; Chemistry - Aerosol species concentrations at varying particle diameters; AOD - Aerosol optical depth at varying wavelengths; DMS - Seawater Dimethyl sulfide; Radon - Radon Concentration; CCN - Cloud Condensation Nuclei; Size Distribution (APS) - Aerodynamic Particle Size Distribution; Size Distribution (DMPS) - Differential Mobility Particle Size Distribution; Size Distribution - Merged version of the APS and DMPS datasets

Multiple units of in-house built SMART-s (Spectral Measurements for Atmospheric Radiative Transfer-spectrometer, 330870 nm at ~0.8 nm resolution), as a part of NASA/Pandora network with extended spectral range, will be deployed to support PACE validation over oceanic waters (Eureka Oil Platform, CA; ~8 miles off the coast of Long Beach, CA) and seasonal transported Asian dust, southeastern biomass-burning smoke, and locally generated industrial air pollutants such as trace gases, precursors, and aerosols (Taiwan) sites. Specifically, we propose to accomplish the following two tasks:1. To evaluate OCI's atmospheric-corrected water-leaving radiance/reflectance: Since the scans of SMART-s are very flexible and programmable, we will initially adopt the AERONET-OC operational criteria (e.g., IOCCG, 2019; Zibordi et al., 2021) for data continuity and consistency checks; then, after accumulating enough lessons learned from SeaPRISM, the advantage of SMART-s spectrometry will help improving the spatial-spectral-temporal sampling efficiency and effectiveness for PACE/OCI intercomparison (validation) and application. These water-leaving radiance/reflectance will be integrated with OCI's spectral response functions to meet their spectral range (i.e., 17 bands in 350710 nm at 15 nm bandwidth; 665/678 nm at 10 nm bandwidth) and uncertainty requirements.2. To validate PACEs aerosol and cloud products: We will utilize well-calibrated SMART-s' direct-Sun and sky measurements with SMART-s published methods (Jeong et al., 2018, 2020, and 2022) to retrieve columnar properties of aerosols (e.g., spectral AOD, single-scattering albedo, and ngstrm exponent, fine-mode fraction of complex index of refraction) and abundance of trace gases (O3, NO2, H2Ovapor). By leveraging the assets of the upcoming 7-SEAS (Seven SouthEast Asian Studies, 20242026, Taiwan in collaborating NASA AERONET/ MPLNET) international field campaigns, SMART-s measurements can be maximized for improving scientific understanding and validating PACE/OCI products.

The Suomi National Polar-orbiting Partnership (SNPP) Visible Infrared Imaging Radiometer Suite (VIIRS) NASA standard Level-2 (L2) dark target (DT) aerosol product provides satellite-derived measurements of Aerosol Optical Thickness (AOT) and their properties over land and ocean, and spectral AOT and their size parameters over oceans every 6 minutes, globally. The VIIRS incarnation of the DT aerosol product is based on the same DT algorithm that was developed and used to derive products from the Terra and Aqua mission’s MODIS instruments. Two separate and distinct DT algorithms exist. One helps retrieve aerosol information over ocean (dark in visible and longer wavelengths), while the second aids retrievals over vegetated/dark-soiled land (dark in the visible).

Three Modified Yankee Multi-Filtered Rotating Shadow Band Spectrometers (M-MFRSR) will be deployed at three locations to measure UV aerosol absorption properties at 340nm and 380 nm. Aerosol parameters to be derived are single scattering albedo (SSA) and Aerosol Absorption Optical Depth (AAOD). Instruments will be deployed at operational Aerosol RObotic NETwork (AERONET) sites. AERONET derived information on aerosol optical depth (AOD), surface albedo, and particle size distribution (PSD) will be used as input to the inversion of M-MFRSR total (direct plus diffuse), diffuse, and direct (total – diffuse) multi-spectral planar irradiance measurements.

This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols from aboard WHOI R/V Knorr, collected 19 March to 24 April 2008 during the ICEALOT field campaign. The data is divided into eleven csv datasets, summarized as follows: Main - Navigation, Meteorology, Scattering, and Absorption; Chemistry - Aerosol species concentrations at varying particle diameters; AOD (x3 instruments) - Aerosol optical depth at varying wavelengths; DMS - Seawater Dimethyl sulfide; Radon - Radon Concentration; CCN - Cloud Condensation Nuclei; Size Distribution (APS) - Aerodynamic Particle Size Distribution; Size Distribution (DMPS) - Differential Mobility Particle Size Distribution; Size Distribution - Merged version of the APS and DMPS datasets