The Committee on Earth Observation Satellites (CEOS) Working Group on Calibration and Validation (WGCV), SAR Subgroup, Synthetic Aperture Radar Workshop 2020 (CEOS SAR 2020) will be held virtually this year due to COVID-19 travel restrictions. This meeting will be held October 6-8, 2020, and will focus on Cal/Val discussions rather than formal presentations. For this workshop, emphasis has been put on discussion sessions rather than broadly soliciting presentations. However, the chairs of these sessions have requested short presentations from some of the membership to kick off the discussions.
Three discussion sessions have been planned, focusing on the following topics:
SAR Cal/Val Targets;
Analysis Ready Data (more precisely, CEOS ARD for Land, or CARD4L) and,
Operating mission updates and the question of RF interference (space-to-space, ground-to-space).
Once logged-in with your CEOS SAR member credentials, please access to the SAR Subgroup Doc Repository to get the Workshop Program with the Connection info and instructions for uploading presentations.
If you have low bandwidth or a poor internet connection, it can impact your connection experience; virtual meeting software generally show a notification on-screen to let you know. Here are some tips on working with limited bandwidth:
We recommend you turn off your web camera.
Close unnecessary applications.
If you have no WiFi: use the direct dial numbers for your meeting, if provided with the invite.
We recommend you mute yourself if you are not speaking.
Most virtual meeting software like Zoom or Webex can run outside of your VPN: Turning off your VPN certainly will lead to a better audio and video experience.
Session 1, Oct.6 and 7
CEOS SAR Cal-Val Targets
This session is split in two time zones: Session 1.1 (East) and session 1.2 (West)
Discussion Topics
SAR WGCV target database:
Requirements for calibration arrays and natural targets locations to be included in the CEOS SAR WGCV target database
Calibration arrays to be included in this CEOS SAR WGCV network
Vetting and annual review (creation of a subgroup)
Information to include: survey date, accuracy, etc.
Service requests facilitation
Future joint use
Calibration standards and metrics:
Agree on performance metrics definitions (radiometric, geometric, pointing)
Minimum standards for calibration:
Techniques, minimum standards
Recommendations on calibration performance
Session 1.1, CEOS SAR Cal-Val Target – West
BEGIN
END
PLACE
2020-10-06
12pm
3pm
Fairbanks
1pm
4pm
Los Angeles
4pm
7pm
Montreal
5pm
8pm
Buenos Aires
10pm
1am next day
Rome/Munich
2020-10-07
5am
8am
Tokyo
7am
10am
Canberra
Host: Stephane Cote
Co-hosts: Bruce Chapman, Ronald Muellerschoen
Session 1.2, CEOS SAR Cal-Val Target – East
BEGIN
END
PLACE
2020-10-06
11pm
2am
Fairbanks
2020-10-07
midnight
3am
Los Angeles
3am
6am
Montreal
4am
7am
Buenos Aires
9am
noon
Rome/Munich
4pm
7pm
Tokyo
6pm
9pm
Canberra
Host: Jens Reimann
Co-hosts: Dirk Geudtner, Medhavy Thankappan
Agenda Session 1.1 (West)
START TIME (H:MIN)
DURATION (MIN)
TITLE/TOPIC
AUTHORS/FACILITATORS
0
5
Objectives/Motivation
Stephane Cote, Bruce Chapman, Ronald Muellerschoen
Talks: current state of the art for operating a calibration array including construction, survey techniques, maintenance, etc.
5
10
Strawman requirements for deploying and maintaining SAR Cal/Val targets
Ronald Muellerschoen
15
10
SAOCOM Calibration Targets
Marc Thibeault
25
10
RCM Calibration Targets
Stephane Cote
35
2:15
Discussion
All
2:50
10
Summary/Actions
Stephane Cote, Bruce Chapman, Ronald Muellerschoen, all
3:00
End
Agenda Session 1.2 (East)
START TIME (H:MIN)
DURATION (MIN)
TITLE/TOPIC
AUTHORS/FACILITATORS
0
5
Objectives/Motivation
Jens Reimann, Dirk Geudtner, Medhavy Thankappan
Talks: current state of the art for operating a calibration array including construction, survey techniques, maintenance, etc.
5
10
Status Update for the Australian CR Array
Medhavy Thankappan
15
10
Status of Sentinel-1 Calibration Transponders
Dirk Geudtner
25
10
Calibration targets for ALOS-series L-band SAR
Takeshi Motohka
35
10
TBD
Christoph Gisinger
45
2:05
Discussion
All
2:50
10
Summary/Actions
Jens Reimann, Dirk Geudtner, Medhavy Thankappan, all
3:00
End
Session 2, Oct 7-8
CARD4L Updates and Developments
BEGIN
END
PLACE
2020-10-07
3pm
5pm
Fairbanks
4pm
6pm
Los Angeles
7pm
9pm
Montreal
8pm
10pm
Buenos Aires
2020-10-08
1am
3am
Rome/Munich
8am
10am
Tokyo
10am
noon
Canberra
Host: Ake Rosenqvist
Co-host: Franz Meyer
Agenda Session 2
START TIME (H:MIN)
DURATION (MIN)
TITLE/TOPIC
AUTHORS/FACILITATORS
0
5
Objectives/Motivation
Bruce Chapman
5
15
CARD4L Specification Structure and Sample Products
Ake Rosenqvist
CARD4L SAR Specification Updates:
20
10
Normalised Radar Backscatter (NRB)
David Small
30
10
Polarimetric Radar (POL)
François Charbonneau
40
10
Geocoded SLC (GSLC)
Howard Zebker
50
10
Interferometric Radar (InSAR)
Matt Garthwaite
1:00
15
CARD4L Assessment Process and Role of the WGCV
Medhavy Thankappan
1:15
40
Panel Discussion
Franz Meyer, Presenters and Invited Speakers
1:55
5
Summary/Actions
Ake Rosenqvist, Bruce Chapman, all
2:00
End
Session 3, Oct 8
Updates for operating missions/discussions on space-to-space and ground-to-space RFI