GOES-R SUVI Products - Space Weather Prediction Center · SUVI Level 2 products Composite Image...
Transcript of GOES-R SUVI Products - Space Weather Prediction Center · SUVI Level 2 products Composite Image...
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GOES-R SUVI Products
GOES-VW Space Weather Requirements
April 13th, 2015
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Instrument Overview
Engineering mock-up of the SUVI
design
SUVI Primary Mirror
showing segmented
regions
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SUVI Level-1b Product
✦ 1 image/10sec
✦ 94, 131, 171, 195, 284, 304
angstrom channels
✦ 1sec or 10msec exposure
times
Processing:
✦ Dark and bias subtracted
✦ Flatfield correction
✦ Yaw-flip and amplifier
orientation correction
✦ Coversion to radiance
Processing not done:
✦ De-grid, alignment of solar
north, PSF deconvolution
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Product Set 1 (4/16/2015 - 8/31/2015): ✦ SUVI Composite Images ✦ SUVI Thematic Map
Product Set 2 (9/1/2015 - 3/31/2016): ✦ SUVI Coronal Hole Boundaries ✦ SUVI Bright Region Data ✦ SUVI Flare Location
Product Set 3 (4/1/2016 - 8/31/2016): ✦ SUVI Fixed Differences ✦ SUVI Running Differences
SUVI Level-2 Product Sets
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SUVI Level 2 products Composite Image
Composite Images are combined weight-averaged time-series of
solar EUV images.
✦ Weighting de-emphasizes extreme values and favors
values in the instrument response “sweet spot”
✦ SUVI has short and long exposure times, both used in the
Composite Image to cover the required dynamic range
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SUVI Level 2 products Thematic Map
Pixels are classified from probability
distributions created from training sets
using all six bandpasses.
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SUVI Level 2 products Coronal Hole Boundaries
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SUVI Level 2 products Bright Region Data
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SUVI Level 2 products Flare Location
✦ Utilizes an approach similar to the
Bright Region algorithm
✦ Uses the Thematic Map as input to
identify flaring regions
✦ Determines the location of
maximum intensity for each flaring
region
✦ Links to the corresponding Bright
Region in the Bright Region Report
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SUVI Level 2 products Fixed and Running Differences
Running Difference Fixed Difference