1. Report on the CEOS/WGCV-GSICS Microwave Subgroups Joint Meeting Cheng-Zhi Zou
Thanks Bruce for the introduction. The title of my talk is ‘MSU/AMSU/SSU CDR development. I gave a talk three years ago in the STAR science forum about the MSU inter-calibration and trend and I kept talking this subject in the last few years in various occasions and hope people don’t get tired of it. But today I try to provide a comprehensive review of the current status and a discussion of various science issues include various bias correction, validation, inter-comparisons, web data support, and so on. I have reserved the room for two hours, but I will only talk about 45 minutes to one hour and allow plenty of time for questions. So don’t get scared about the length of the talk as suggested in the announcement.
GSICS Microwave Subgroup Web Meeting, 07/18/2018

2. Meeting Information
Meeting Name: CEOS/WGCV-GSICS Microwave Subgroups Joint Meeting
Place: National Space Science Center, Chinese Academy of Sciences, Beijing,
China
Time: July 6-7, 2016
Participants:
Cheng-Zhi Zou (Co-Chair) NOAA
Fuzhong Weng NOAA
Xiaolong Dong (Co-Chair) NSSC (National Space Science Center, CAS)
Zhenzhan Wang NSSC
Qifeng Lu CMA
Shengli Wu CMA
Yang Guo CMA
Dawei An CMA
Wenying He IAP (Institute of Atmospheric Physics, CAS)
Yili Zhao NOTC (National Oceanic Technology Center, SOA)
Xiaoqi Huang NOTC
Gang Zheng SIO (Second Institute of Oceanography, SOA)
Chunyue Cheng BRIMM (Beijing Institute of Radio Metrology and
Measurement)
Mitch provided long time support for project from the program side, such as leveraging funding.
And Fuzhong also provides program support and coordinate the CRTM team to work with our product development team. You may notice that most of my SDS science team members are from his Branch.
I also want to thank Changyong for his long time support from scince side. I can always count on his support when I need a discussion on science. even when I need support from his team members.

3. Presentation Overview Instrument Performance Inter-Comparison
Progress in CEOS/WGCV, Xiaolong Dong
Overview of intercalibration activities at GSICS Microwave Subgroup, Cheng-Zhi Zou
Instrument Performance
Well-calibrated ATMS, Fuzhong Weng
FY-3 Evaluation in NWP by CMA, ECMWF, and UKMO, Qifeng Lu
Inter-Comparison
Validation of FY-3 MWTS in lower-stratosphere using COSMIC RO data, Wenying He
Cross-Calibration of ESA SMOS and NASA Aquarie brightness temperature, Yili Zhao
Intercalibration of ATMS and SAPHIR, Isaac Moradi
Inter-calibration of Satellite Microwave Radiometer Brightness Temperatures from AMSU-B & SSM/T-2, Nazia Shah
Mitch provided long time support for project from the program side, such as leveraging funding.
And Fuzhong also provides program support and coordinate the CRTM team to work with our product development team. You may notice that most of my SDS science team members are from his Branch.
I also want to thank Changyong for his long time support from scince side. I can always count on his support when I need a discussion on science. even when I need support from his team members.

4. Presentation Pre-launch Calibration Standard development
Vacuum test results of FY-3D/MWRI, Shengli Wu
Calibration and validation of FY-3 MHTS, Yang Guo
Progress of sea surface height calibration of HY2 Radar Altimeter, Xiaoqi Huang
New method of radiometric nonlinear calibration for FY-3C Microwave Thermometer, Dawei An
Retieving wet tropospheric path delay base on the HY-2A calibration of microwave radiometer, Gang Zheng
Standard development
Microwave remote sensing radiometry at BIRMM, Chunyue Cheng
Mitch provided long time support for project from the program side, such as leveraging funding.
And Fuzhong also provides program support and coordinate the CRTM team to work with our product development team. You may notice that most of my SDS science team members are from his Branch.
I also want to thank Changyong for his long time support from scince side. I can always count on his support when I need a discussion on science. even when I need support from his team members.

5. Point of Interest—focusing areas
Challenges:
Change and development of environmental observing satellites
The number of Earth-observing satellites has vastly increased
Onboard instruments are more complex and are capable of collecting new types of data in ever-growing volumes.
The user community has expanded and become more diverse as different data types become available and new applications for Earth observations are developed
Users have become more organized, forming several international bodies that coordinate and levy Earth observation requirements
Mitch provided long time support for project from the program side, such as leveraging funding.
And Fuzhong also provides program support and coordinate the CRTM team to work with our product development team. You may notice that most of my SDS science team members are from his Branch.
I also want to thank Changyong for his long time support from scince side. I can always count on his support when I need a discussion on science. even when I need support from his team members.

6. Point of Interest– focusing area
Collaboration between CEOS and GSICS MW subgroups; not to overlap effort
CEOS/WGCV microwave subgroups is focusing on
Guidelines for prelaunch calibration of microwave radiometer
Guidelines for scatterometer calibration and data quality control
GSICS is focusing on defining reference instrument
Mitch provided long time support for project from the program side, such as leveraging funding.
And Fuzhong also provides program support and coordinate the CRTM team to work with our product development team. You may notice that most of my SDS science team members are from his Branch.
I also want to thank Changyong for his long time support from scince side. I can always count on his support when I need a discussion on science. even when I need support from his team members.

7. Point of Interest Criteria for reference instrument
Fuzhong proposed criteria for selecting a reference microwave instrument
Cheng-Zhi suggested that a reference instrument shall be channel dependent
In CDR application, an instrument that has the longest availability and stability in both its orbits and radiances is often selected as a reference for developing diurnal drift correction algorithm. But this is channel dependent since, so far, not a single instrument was used as a reference for all channels. Once a channel failed for a reference instrument, another instrument (same type) will often be used as a replacement for the reference.
In this sense, AMSU-A FCDR should be considered as a reference
Tim sent an providing ideas on choice of references; however, due to incapable of accessing gmail s in China, these ideas were not discussed at the meeting
Mitch provided long time support for project from the program side, such as leveraging funding.
And Fuzhong also provides program support and coordinate the CRTM team to work with our product development team. You may notice that most of my SDS science team members are from his Branch.
I also want to thank Changyong for his long time support from scince side. I can always count on his support when I need a discussion on science. even when I need support from his team members.

8. Future Interaction
The CEOS/WGCV has been focusing on developing guidelines for microwave pre-launch calibration.  This group has more knowledge on instrument design and instrument pre- launch performance
GSICS microwave subgroup has been focusing on defining references and developing inter-calibration algorithms. The GSICS group has more knowledge on post-launch instrument performance and long-term data quality and approaches to improve them
Future Joint Meeting between the CEOS/WGCV and GSICS microwave groups needs to be planned; focusing on discussion if or not a microwave reference can be defined/designed
It could help the CEOS/WGCV group to develop better instrument design strategy and pre-launch calibration algorithms by learning the knowledge of data quality issues and inter-calibration algorithms from GSICS group.  
It could help the GSICS group to develop better re-calibration and inter-calibration algorithms by learning the instrument design and pre-launch calibration issues from the CEOS/WGCV group