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.

DOI

Resources and Documentation

Earthdata Forum

GOTO WEB TOOL

DSCOVR EPIC Visualization Tool

PROJECT HOME PAGE

EPIC O3 Product Overview

NOAA overview of DSCOVR: Deep Space Climate Observatory

VIEW RELATED INFORMATION

GENERAL DOCUMENTATION

• ASDC Data and Information for DSCOVR
• Earth Observation Portal Page for DSCOVR Mission Information

MICRO ARTICLE

• "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

PUBLICATIONS

• A New Blue Marble By Scott Kelly, NASA Astronaut
• ASDC List of DSCOVR Featured Articles
• Discover Article "The U.S. Deep Space Climate Observatory just sent back its first view of our home world, and it’s a beauty." By Robinson Meyer, July 20, 2015
• NASA Leadership Blog, DSCOVR’s First Light on the Future by Buzz Aldrin
• The Atlantic Article "Al Gore Dreamed Up a Satellite—and It Just Took Its First Picture of Earth: The U.S. Deep Space Climate Observatory just sent back its first view of our home world, and it’s a beauty." By Robinson Meyer, July 20, 2015

USER FEEDBACK PAGE

• NASA Goddard Twitter Page

Keywords