ATom: Measurements of Soluble Acidic Gases and Aerosols (SAGA)
Soluble acidic gases and aerosols (SAGA) were collected with two related installations; a mist chamber/ion chromatography (MC/IC) system and a paired bulk aerosol system. The MC/IC system measures in situ atmospheric distributions of nitric acid (plus < 1 um NO3 aerosol) and fine (< 1 um) aerosol sulfate at an approximately 80-second interval. The paired bulk aerosol system collects particulates onto filters for subsequent analysis. Collected filters were first extracted with water to obtain the water-soluble (WS) constituents and then extracted again using methanol to collect the methanol soluble (MS) fraction. The light absorption of filtered extracts was measured from 300 to 700 nm. Ion chromatography on aqueous extracts of the bulk aerosol samples collected on Teflon filters were used to quantify soluble ions (Cl-, Br-, NO3-, SO42-, C2O42-, Na+, NH4+, K+, Ca+, and Mg+). The SAGA system is provided by the University of New Hampshire (UNH).
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Distribution: ICARTT |
| Temporal Extent: | Platform(s): | NASA DC-8 | |
| Data Center(s): | ORNL_DAAC | Instrument(s): | ION CHROMATOGRAPHS |
| Version: | 1 | ||
- Other Citation Details: Dibb, J.E. 2019. ATom: Measurements of Soluble Acidic Gases and Aerosols (SAGA). ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1748
- GENERAL DOCUMENTATION: https://daac.ornl.gov/ATOM/guides/ATom_SAGA_Instrument_Data.html, ORNL DAAC Data Set Documentation
- GENERAL DOCUMENTATION: https://daac.ornl.gov/daacdata/atom/ATom_SAGA_Instrument_Data/comp/ATom_SAGA_Instrument_Data.pdf, ATom: Measurements of Soluble Acidic Gases and Aerosols (SAGA): ATom_SAGA_Instrument_Data.pdf
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DOI
10.3334/ORNLDAAC/1748
https://doi.org
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2
Derived geophysical variables at the same resolution as L1 source data
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ORNL_DAAC
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ORNL DAAC User Services Office, P.O. Box 2008, MS 6407, Oak Ridge National Laboratory
Oak Ridge, Tennessee 37831-6407
(865) 241-3952
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Format: ICARTT
Format Type: Native
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