PICASSO proposal in answer to ESA RFQ 3-14170/14/NL/MH · Global ozone review: lots of scientific...
Transcript of PICASSO proposal in answer to ESA RFQ 3-14170/14/NL/MH · Global ozone review: lots of scientific...
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 1/14
ALTIUS
Atmospheric Limb Tracker for Investigation of the Upcoming Stratosphere
1st ALTIUS Symposium (2017) Synthesis
Reference ALT-BR-BISA-PRJ-COM- Symposium_2017_Synthesis
Release 1.1
Release date 09/05/2017
Prepared by Jan Thoemel
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 2/14
Document change record
Rel. Date Section(s) Changes
1.1 09/05/2017 NA First release
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 3/14
Contents
1 Preamble ............................................................................................................................ 4
2 Participation ....................................................................................................................... 5
3 Summary ............................................................................................................................ 7 3.1 Session1: ALTIUS: Mission objectives and status ............................................................................... 7 3.2 Session 2: System concept and measurement methods ................................................................... 7 3.3 Session 3: Radiative transfer in limb observation geometry ............................................................. 7 3.4 Session 4: Retrieval algorithms .......................................................................................................... 7 3.5 Session 5: ALTIUS geophysical product validation ............................................................................. 8 3.6 Session 6: Data usage and applications ............................................................................................. 8 3.7 Session 7: ALTIUS in space: synergies with other instruments .......................................................... 9
4 Conclusion ......................................................................................................................... 10
5 Appendix: List of Participants ............................................................................................. 11
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 4/14
1 Preamble The first international ALTIUS Symposium took place on the 2nd and 3rd May 2017 in the auditorium of the Royal Museum of Natural Sciences in Brussels, Belgium. It was accompanied by an exhibition of scientific posters and two stands of the two sponsors OIP Sensor Systems N.V. and QinetiQ Space Belgium. In total 7 sessions were held over the two days. Networking and scientific debates were facilitated by an ice-breaker cocktail reception and a walking dinner at the end of the first day. The objective of the symposium was to convey the mission concept and the scientific methods that are used for or relate to it. Discussions on scientific collaborations were initiated culminating in an invitation to submit proposals for collaborations through a webform (https://goo.gl/JI1vzQ).
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 5/14
2 Participation
The symposium was excellently attended by in total 101 individuals mostly from the western hemisphere. The vast majority came from Belgium (61). Other countries well represented were Germany (11), France (6) and the United States (6). This is illustrated in Figure 1.
Figure 1 Participation per country.
In total 36 members of BIRA-IASB where present. Other organizations typically send delegations of in between 1 and 4 persons. This is shown in Figure 2. A balanced mix of agencies, scientific institutions, universities and industry was represented. Industrial participation was Belgian only, with the exception of one representative of CS-Romania .
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 6/14
Figure 2 Participation per organization.
0 10 20 30 40
VTT Sensing and Integration
University of Toronto
University of Saskatchewan
University of Reading
University of Bremen
Ulg
ULB
SPACEBEL
Space Applications Services
Science Systems and…
ROB
RMIB
Redu Space Services
QinetiQ Space
ONERA
OIP
NOAA
NIES
NASA
Max Planck Institute
LPC2E, CNRS-Universite…
LATMOS/UPMC/CNRS
Lambda-X
KIT/IMK
JPL
IPSL (UPMC/UVSQ)
GATS
Forschungeszentrum Jülich
FMI
EUMETSAT
ESA
ECMWF
DLR
CS ROMANIA
CNRS-LATMOS
BIRA-IASB
Bergische Universität…
BELSPO
Ancient-CONSERD
AMOS
ACRI-ST
Institu...
Sum o...
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 7/14
3 Summary After the scientific sessions have been concluded the session conveners have been asked to summarize the main points. Those are given in the following.
3.1 Session1: ALTIUS: Mission objectives and status
The main statements and conclusions are:
The ALTIUS mission is now on track, under ESA supervision. Pre-developments are starting soon
as well as an Advisory group. The mission has an operational character (NRT ozone) AND
scientific objectives. The space segment PDR (2018) will be followed by GS PDR
It is desired to improve S/N by statistics to detect small absorbers
Operational character requires lifetime> 3 years
3.2 Session 2: System concept and measurement methods
The main statements and conclusions are:
There is already a preliminary system design (PROBA-NEXT P200 + OIP payload) available.
There is a preliminary PDGS architecture accomplished.
For the consolidated products, it was suggested to put the focus more on reliable availability
than on timeliness.
Metadata (AK, covariance matrices) etc should be accounted for when estimating the data
volume.
3.3 Session 3: Radiative transfer in limb observation geometry
The main statements and conclusions are:
There are several sophisticated 3D vectorial models available.
Inter-comparisons between the models are needed.
3.4 Session 4: Retrieval algorithms
The main statements and conclusions are:
ALTIUS data processing will split into different branches in PDGS: NRT/CP + limb/occult.
Presentations on retrievals from OMPS, ACE-Maestro, ALTIUS preliminary retrieval exercise were
given.
Larry Gordley gave an inspiring talk on innovative methods applicable to imaging instruments,
whole star fields occultations and stray light characterization with the moon.
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
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3.5 Session 5: ALTIUS geophysical product validation
Summary of session:
J.-C. Lambert (BIRA-IASB) presented validation methodologies and tools applicable to ALTIUS and
illustrated them with results from the Multi-TASTE versatile validation system and from the
operational validation systems for Sentinel-5P TROPOMI and for CAMS.
B. Dils (BIRA-IASB) presented an overview of ground-based validation capabilities offered by the
Network for the Detection of Atmospheric Change (NDACC), with highlights on data and format
harmonization and operationalisation of this research and monitoring network.
T. von Clarmann presented the workplan of the new SPARC activity Towards Unified Error
Reporting (TUNER), addressing the harmonization of uncertainty calculation and reporting for 12
stratospheric sounders.
Q. Errera (BIRA-IASB) presented the BASCOE Data Assimilation system and demonstrated with
MLS-based simulations the value added by future ALTIUS data, as well as BASCOE capabilities for
ALTIUS quality assessments and monitoring.
The main statements and conclusions are:
Sustaining ground-based measurements of quality and pursuing their adaptation to satellite
validation needs. Among others, documenting and improving the internal homogeneity of
networks.
Characterising the (ground and satellite) data and harmonizing their reporting and their
uncertainties.
Envisioning the adaptation of heritage systems to build an operational ALTIUS validation server.
Validating satellite data for their intended use (produce Quality Indicators enabling various users
to verify the fitness-for-purpose of ALTIUS).
Developing appropriate validation strategies for Level-3/4 data products (including data
assimilated products and climatologies).
Including the use of alternative retrieval algorithms in the ALTIUS data quality assessment
strategy.
3.6 Session 6: Data usage and applications
The main statements and conclusions are:
ESA CCI -> ALTIUS requirement for daily revisit time, it would make more sense to get better
coverage with 3-day revisit: Alexei Rozanov thinks that daily revisit requirement in OPEROZ
assumed that coverage would be global in any case; the latter has higher priority. Rolf Muller:
OPEROZ was not written for ALTIUS but more as a generic wishlist; it would be good to do an
updated OPEROZ-like study with ALTIUS in mind. Martin Kaufmann: what about increasing the
horizontal FOV ?
CAMS: currently unprepared to deal with MLS disappearing: on model side because currently
operational CIFS-TM5 has no stratospheric chemistry; and on observation side because no other
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 9/14
limb instrument is ready for assimilation (not even OMPS-LP). There are many questions about
this unpreparedness. Alexei advises Antje to contact data providers; Antje replies she can’t test
independent datasets, and requires consolidated/standardized datasets as made by ESA CCI.
Global ozone review: lots of scientific interest for detailed and improved trend estimates,
especially in upper stratosphere and tropical lower stratosphere. ALTIUS will hopefully become a
very important contributor to WMO O3 assessment reports (which comes every 4 years) as its
period matches the expected recovery era. Recovery period will require detailed, vertically
resolved observations
SPARC DI: final report (no 8) is out with many achievements; sampling analysis played an
important role. Climatology validation approach (comparison of monthly zonal means and their
deviations from a multi-instrument mean). Hence there are sampling biases and vertical
resolution biases but these were addressed in dedicated papers. Discussion about decreasing
trends of Tropical stratospheric ozone (due to ODS in upper stratospheric and BDC acceleration
in lower stratosphere): a CMAM study shows that this may have been partly hidden by an
increasing trend in tropical tropospheric ozone. CCI+ approved.
3.7 Session 7: ALTIUS in space: synergies with other instruments
Summary of session:
G. Jaross (NASA) presented OMPS limb capabilities and reported on pointing and stray light
issues and their current solutions.
C. Zehner (ESA) described the Copernicus Sentinel satellite programme, with details on the
upcoming S-5P TROPOMI, on the geostationary Sentinel-4 capabilities and on Sentinel-5. He
explained also the current priorities for Sentinel programme expansion.
P.-F. Coheur (ULB) presented 10 years of tropospheric and stratospheric composition
measurements with IASI, including ozone profile and HNO3 observations as well as detection of
SO2 and H2SO4 after volcanic eruptions.
R. Damadeo (NASA) presented new capabilities and initial measurements by SAGE-III on ISS. He
introduced the SAGE IV concept for future continuity of the SAGE series.
The main statements and conclusions are:
Synergies for inter calibration (GSICS type) are to be assessed
Common solar reference spectrum shall be used
Synergistic retrieval of tropospheric data from nadir and limb measurements is seen as an
opportunity
Synergies for inter-validation between ALTIUS, OMPS, SAGE-III/IV are seen as important
Established standards (data formats, units etc.) need to be adopted.
How can limb sounders be included in future programmes ?
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 10/14
4 Conclusion The overall feedback received verbally was very positive. Participants appreciated the excellent organization, the programme and scientific discussions.
The organizers were able to strengthen position within the scientific limb Earth observation community and to brainstorm potential collaborations.
Therefore the symposium is considered a success.
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 11/14
5 Appendix: List of Participants
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 12/14
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 13/14
ALTIUS
1st ALTIUS Symposium (2017) Synthesis
Royal Belgian Institute for Space Aeronomy, Ringlaan-3-Avenue Circulaire, B-1180 Brussels, BELGIUM
ALT-BR-BISA-PRJ-CNT-ALTIUS_Symposium_2017_Synthesis Release 1.1, 09/05/201, Page 14/14