1. Report from KMA 17th GSICS Executive Panel, Biot, 2-3 June 2016
Dohyeong Kim
(NMSC/KMA)
GSICS-EP-17, Biot, 2-3 June 2016

2. Agency update Overall satellite planning
GEO-KOMPSAT-2A is planning to launch in May 2018
LEO (MW/IR sounder) : plan (~2022)
Other major events affecting the agency or its participation in GSICS
Himawari-8 operation and its application/utilization on weather and inter-calibration
GRWG Chair
GSICS-EP-17, Biot, 2-3 June 2016

3. Participation in EP, GDWG, GRWG
Points of contacts/meeting participants:
EP : Dohyeong Kim
GRWG: Hyesook Lee/Dohyeong Kim
GDWG: Jin Woo
Main contribution to GDWG actions
Create landing pages for the COMS satellite for linking to the OSCAR database
Lead to take the presentation review pages of GPRCs webpage
Main contribution to GRWG actions
Join the demonstration mode of GEO-LEO calibration with IASI
Visible channel calibration using DCC and Moon
Contribution to SCOPE-CM appling GSICS correction to SST/insolation, and joining SCOPE IOGEO for GEO-GEO calibration
Comments, feedback
Recommended to investigate effects of the non-linearities in the COMS WV channel
Recommended to assess uncertainties in double differences between COMS/MI and IASI-A and –B (e.g. as standard error)
To implement the GSICS DCC process to promote KMA to demonstration product
GSICS-EP-17, Biot, 2-3 June 2016

4. Current and prospective GSICS Products
Status
Comments
GEO-LEO-IASI-A
Demo
Near real-time
website
GEO-LEO-AIRS
Pre-demo
Website
GEO-LEO-IASI-B
GEO-LEO-CrIS
VISNIR-MOON
Test op
GIRO
VISNIR-DCC-KMA/SNU
Model based calibration
VISNIR-Desert-KMA
Simpson desert of Australia
VISNIR-Cloud-KMA
VISNIR-DCC-NASA
Test
Under development
2016
GSICS-EP-17, Biot, 2-3 June 2016

5. Highlights of KMA calibration activities(1/3)
a scatter plot for 30 days data
get a slope/intercept
trend of slope for long period
Ocean
Desert
Water Cloud
DCC
Scatter plot
using ocean/desert/WC/DCC
for all data until now
slope= 0.861
intercept= 0.019
Time series of slopes and intercepts
Results of Moon and DCC (RTM)
Slope(moon)=-5.802%
Slope(4 targets)=-5.717%
GSICS-EP-17, Biot, 2-3 June 2016

6. Highlights of KMA calibration activities(2/3)
Result of IASI SRF shift and the trend of TB bias for WV
Period: Jan Dec
Slop
Inter
Original : Original MI + Original IASI
Method1 : Original MI + IASI SRF shifted by +2.8cm-1
Method2 : Corrected MI + IASI SRF shifted by +3.4cm-1
COMS TB (K)
WV(6.7μm)
+ IASI o IASI_2.8
Bias
RMSE
TB Bias(COMS-LEO) (K)
Slop
Inter
COMS TB (K)
IASI IASI_ IASI_3.4
Bias
RMSE
+ IASI o IASI_3.4
Bias
RMSE
COMS TB (K)
LEO TB (K)

7. Highlights of KMA calibration activities(3/3)
Application of GSICS correction
1. Sea Surface Temperature (SST)
2. Insolation (INS, Shortwave Radiation)
Area: 0-45°N, °E
Data: COMS/MI IR data, GTS buoy SST data
Study Area : 30-40°N, °E
Data : COMS/MI Vis data, Pyranometer(Ground station)
Daytime SST
Nighttime SST
(Variation Monthly RMSE)
Pyranometer
Bias=0.5377
Before Correction
Bias=0.0928
Before Correction
Bias=11.88
Before Correction
(Variation Monthly Bias)
Bias=2.22
After Correction
Bias=0.0627
After Correction
Bias=0.0208
After Correction
GSICS-EP-17, Biot, 2-3 June 2016

8. User Requirements and Feedback about GSICS deliverables
Satellite data users (internal or external)
Application: reproduction of SST using GSICS correction
Requirement : monthly/annual mean GSICS corrction
Impact : increase in accuracy of SST
Feedback : proper interval of GSICS correction
Application: reproduced clear sky radiance to NWP
Requirement : diurnal variation of GSICS corrction (biases)
Impact : under investigation
As a satellite operator
Guideline for reproducing long-term data with application of GSICS correction
GSICS-EP-17, Biot, 2-3 June 2016