DSCOVR EPIC Level 2 Sulfur dioxide (SO2) Product with EPIC Version 3 Input Version 2

DSCOVR_EPIC_L2_SO2_v03 is the Deep Space Climate Observatory (DSCOVR) Enhanced Polychromatic Imaging Camera (EPIC) Level 2 Sulfur Dioxide (SO2) product with EPIC version 03 inputs. It has key ultraviolet (UV) channels suitable for retrieving volcanic sulfur dioxide (SO2) and ash, enabling timely tracking and forecasting of volcanic plumes and enhancing our ability to mitigate aviation hazards. EPIC measurements will also be co-located with all satellite UV and infrared sensors, offering ample opportunities for data inter-comparisons and demonstrating advanced retrievals of volcanic ash mass through a synergistic approach. We propose to implement our mature algorithms previously developed for Total Ozone Mapping Spectrometer (TOMS) and Ozone Monitoring Instrument (OMI) to enable SO2 and Ash Index (AI) products from EPIC UV observations to demonstrate improved estimates of volcanic SO2 and ash mass, height and sulfate aerosol loading.

Data and Resources

Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	June 22, 2026, 22:15 (UTC)
Created	April 1, 2025, 15:28 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	7c7c9300-cdaf-49ed-9cf7-f0c9224926c1
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	10.5067/EPIC/DSCOVR_L2_SO2_02
license	https://www.usa.gov/government-works
modified	2026-06-15T22:16:00Z
programCode	{026:000}
publisher	NASA/LARC/SD/ASDC
resource-type	Dataset
source_datajson_identifier	true
source_hash	cff5c55bea85a98a9a42e81740c257a1cba3bd3303b8133b35b6d62a46c98e3d
source_schema_version	1.1
spatial	["CARTESIAN", [{"Boundary": {"Points": [{"Latitude": -90, "Longitude": -180}, {"Latitude": -90, "Longitude": 180}, {"Latitude": 90, "Longitude": 180}, {"Latitude": 90, "Longitude": -180}, {"Latitude": -90, "Longitude": -180}]}}]]
temporal	2016-01-02/2026-06-15
theme	{"Earth Science"}