DSCOVR Level 2
Entry Title: DSCOVR EPIC Level2 Total Ozone with EPIC Level 1B Version 3 Inputs, Version 2
Entry ID: DSCOVR_EPIC_L2_TO3_v03_02
Clouds Radiation Budget
Description
DSCOVR_EPIC_L2_TO3_v03 is the is the Deep Space Climate Observatory (DSCOVR) Earth Polychromatic Imaging Camera (EPIC) Level2 Total Ozone with EPIC Level 1b version 3 inputs. It is an accurate data set of total column ozone, tropospheric ozone, and reflectivity from the DSCOVR EPIC instrument that was created by implementing the latest algorithms modified from those used on Aura Ozone Monitoring Instrument (OMI) and Suomi National Polar-orbiting Partnership (NPP) Ozone Mapping Profiling Suite (OMPS). The results accurately capture short term synoptic changes in total column ozone driven by geochemical and geophysical processes. This can be done uniquely with EPIC from DSCOVR's vantage point where the instrument will make measurements from sunrise to sunset every 90 minutes. Accurate estimates of tropospheric ozone, which is inferred from the difference of the total column ozone and an independent measure of stratospheric column ozone, will require highly accurate total ozone retrievals. Ozone products produced from EPIC will be validated with the long term time series of ozone data from OMI and SBUV instruments. Scene Reflectivity (clouds, aerosols, and surface) is derived as part of the ozone retrieval. The scene reflectivity in conjunction with ozone has been used to derive the amount of UV solar radiation reaching the ground. A new soft calibration technique developed based on scene matching with OMI and OMPS gives calibrated EPIC radiances. The calibrated EPIC radiances can be used to derive accurate science products from EPIC consistent with those from previous UV instruments. Retrievals of all products will be made publicly available and are expected to support a wide range of scientific studies.
Resources and Documentation
GOTO WEB TOOL
DSCOVR EPIC Visualization Tool
PROJECT HOME PAGE
NOAA overview of DSCOVR: Deep Space Climate Observatory
VIEW RELATED INFORMATION
- ASDC Data and Information for DSCOVR
- Earth Observation Portal Page for DSCOVR Mission Information
GENERAL DOCUMENTATION
- "NASA Captures "EPIC" Earth Image" Article from July 20, 2015
- NASA Studies High Clouds, Saharan Dust from EPIC View
- New York Times Blog "From a Million Miles Away, a New NASA ‘Blue Marble’ View of Earth" By Andrew C. Revkin
MICRO ARTICLE
PUBLICATIONS
- NASA Goddard Twitter Page
USER FEEDBACK PAGE
Keywords
From GCMD Science Keywords:
- ATMOSPHERIC CHEMISTRY
- OXYGEN COMPOUNDS
- OZONE > OXYGEN COMPOUNDS
- CLOUDS
- CLOUD RADIATIVE TRANSFER
Data Distribution
Spatial Information
Spatial Coverage Type: Orbital
Longitude Resolution: 10 km
Latitude Resolution: 10 km
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
Vertical Resolution Range: > 1 km
Coordinate System: Geodetic
Granule Spatial Representation: Cartesian
Locations
CONTINENT AFRICA ANTARCTICA ASIA AUSTRALIA/NEW ZEALAND EUROPE NORTH AMERICA SOUTH AMERICA GEOGRAPHIC REGION ARCTIC EASTERN HEMISPHERE EQUATORIAL EURASIA GLOBAL GLOBAL LAND GLOBAL OCEAN MID-LATITUDE NORTHERN HEMISPHERE OCEANIA POLAR SAHEL SOUTHERN HEMISPHERE TROPICS WESTERN HEMISPHERE OCEAN ARCTIC OCEAN ATLANTIC OCEAN INDIAN OCEAN PACIFIC OCEAN SOUTHERN OCEAN STRATOSPHERE TROPOSPHERE
Temporal Information
Temporal Coverage: 2015-06-15 - Present
Temporal Resolution: 12 to 23 images per day