1. GSICS GDWG/GRWG Joint meeting, Toulouse
JMA’ slides
Hiromi Owada (JMA)
GSICS GDWG/GRWG Joint meeting, Toulouse
9-11 February 2010

2. Contents JMA’s activities after the last meeting
GSICS Correction of MTSAT IR
New web page for monitoring MTSAT IR
With GSICS Correction

3. JMA’s activities “GSICS Correction” and GSICS convention ATBD
after the last meeting
“GSICS Correction” and GSICS convention
The MTSAT IR inter calibration system has been modified to implement “GSICS Correction” and GSICS convention.
The new system will be introduced into the routine.
The collocation dataset and “GSICS Correction” will be sent to EUMETSAT GSICS server operationally.
ATBD
ATBD on the current MTSAT IR inter calibration has been completed (v.01).
ATBD on the new system hasn’t been described yet (v.02).

4. JMA’s activities Product Acceptance Procedure VIS calibration
after the last meeting
Product Acceptance Procedure
GSICS Product Acceptance Form (GPAF) for “GSICS Correction” of MTSAT were filled out and submitted on Jan
VIS calibration
The development of MTSAT VIS vicarious calibration system has been completed.
The system will be introduced into the routine soon.

5. GSICS Correction of MTSAT IR

6. GSICS Correction of MTSAT IR
To get corrected radiance IREF from disseminated digital count CMON by a linear regression
The intercalibration result :
disseminated digital count
corrected Tb
Tb-count table Tb
Planck functions for MTSAT IR
radiance
corrected radiance

7. GSICS Correction of MTSAT IR
For Tb users, the table to convert disseminated digital count to corrected Tb is stored as optional information.
corrected calibration table
disseminated digital count
corrected Tb
Tb-count table Tb
Planck functions for MTSAT IR
radiance
corrected radiance

8. GSICS Correction of MTSAT IR
Information of corrected calibration table dumped by “ncdump”
dimensions:
number_of_characters_in_channel_name = 3 ;
number_of_channels = 4 ;
number_of_selections = UNLIMITED ; // (1 currently)
number_of_digital_counts_on_HRIT_table = 1024 ;
variables:
int number_of_digital_counts_on_HRIT_table(number_of_digital_counts_on_HRIT_table) ;
number_of_digital_counts_on_HRIT_table:units = "" ;
float calibration_table(number_of_selections, number_of_channels, number_of_digital_counts_on_HRIT_table) ;
calibration_table:units = "K" ;
calibration_table:long_name = "new calibration table created by GSICS Correction" ;
calibration_table:standard_name = "gsics_calibration_table" ;
calibration_table:valid_min = f ;
calibration_table:valid_max = f ;
data:
number_of_channels = 1, 2, 3, 4 ;
number_of_digital_counts_on_HRIT_table = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
calibration_table =
, , , , , , ,
, , , , , , ,
, , , , 329.2, , ,

9. New web page for monitoring MTSAT IR
With GSICS Correction

10. New web page for monitoring MTSAT IR
With GSICS Correction
The sample page for routine monitoring is available on
Guide
Monitoring page
VIS calibration

11. Guide
New formula
GSICS Correction of MTSAT
Standard radiance of MTSAT

12. Monitoring
Standard radiance
CSV file

13. Monitoring
Period for GSICS Correction
Radiance – Digital count