Summary of the 2nd TTObsReq Workshop
Zurich, Aug 12-13, 2015
Attendance: see appendix
Agenda: see appendix
List of documents to be posted:
1. TTObsReqW2_Zurich ppt -- presentation materials presented by Carmichael –
overview of meeting and progress
2. 2015 08 12 TT-ObsReq2-WIGOS Overview LPR_v2 ppt – WIGOS overview
presented by Lars-Peter
3. Summary day-1 ppt – presented by Greg – summarizing findings of day 1 and
cross checking with other input received
4. Draft white paper aerosols requirements
5. SoG ag
6. SoG - NWP
Actions:
1. Reviewed and updates presented of the application areas, GAW SIP, and workshop
agenda and goals. (Greg – see doc 1).
2. Reviewed and updates presented of WIGOS (Lars-Peter – see doc 2.)
3. Discussed application areas and the atmospheric composition and related
parameters – developed a comprehensive list. List based on the results of the 1 st
workshop, plus input obtained in advance to the 2 nd workshop, and discussion at the
2nd workshop (input received by persons not at the meeting: Randall Martin, Susana
Beatriz Diaz, Angela Benedetti, John Ogren, Johannes Flemming, Alkis Bais, Matt
Tully, Stephan Kinne, …
A. Key parameters needed for Forecasting Application (red added at 2nd
workshop)
1.
All Global NWP variables (the requirements for these are assumed
to be met from other application areas, flagged here are ones that
should be checked to see if additional requirements may be needed to
1
support atm comp applications specifically)
(e.g., PBL + Tropopause height) and others yet to be determined by
WMO/GAW, cloud top/bottom, phase, COD, soil moisture
2.
Aerosols (here variables are listed generically, more specifics will be
parsed out in requirements (e.g., wavelengths, chemical speciation,
etc…)
(aerosol mass, size distribution (or at least mass at 3 fraction sizes: 1,
2.5 and 10 micron) size 3nm-up, speciation and chemical composition,
AOD at multiple wavelengths, pbl-AOD, AAOD, SSA, water content,
ratio of mass to AOD, vertical distribution of extinction), wet deposition,
pollen (key species)
3.
Reactive Gases, Trace gases (incl GHG), Ozone Precursors (here
variables are listed generically, more specifics will be parsed out in
requirements (e.g., O3 including in situ ground level, column, profile,
etc.)
(Total ozone, profile ozone, surface ozone, NO, NO2 (surface, column,
profile), PAN, HNO3, NH3, CO, VOC (isoprene, terpenes, alcohols,
aldehydes, ketones, alkanes, alkenes, alkynes, aromatics), SO2
(surface and column), CH4, CO2, N2O, HCHO, HOx, Clx, ClO, BrO,
OClO, ClONO2, HDO, CFCs, HCFCs, HFCs, Rn, SF6)
4.
Others
Actinic flux, fire radiative power, land proxies, lightning, OCS, TOA
surface short/longwave rad, UV
B. Key parameters needed for Monitoring
1.
All Global NWP variables (all red from F + …)
(e.g. PBL + tropopause height) and others we want to add: SST, deep
ocean temperature, solar variability, albedo, land use, soil moisture,
precipitation, sea ice cover, snow cover, PSC occurrence, H2O, Clouds
including COD, CCN, IN
2
Aerosols
(aerosol mass, number, size/surface distribution (1, 2.5, 10 micron),
speciation and chemical composition, AOD at multiple wavelengths,
AOD nighttime, AAOD, water content, ratio of mass to AOD, vertical
2
distribution of extinction), stratospheric aerosol backscatter coefficient,
PSC composition, concentration of metals, chemical composition of
PM (sulphate, nitrate, ammonium, BC, OC, OM, dust, sea salt, BS,
SOA, BrC) aerosol index, refractive index, wet deposition
(composition), Hg, POPs, primary biological particles)
3.
Reactive gases, Trace gases (incl GHGs), Ozone Precursors
Total ozone, profile ozone, surface ozone, NO, NO2 (surface, column,
profile), PAN, HNO3, NH3, CO, VOC (isoprene, terpenes, alcohols,
aldehydes, ketones, alkanes, alkenes, alkynes, aromatics), SO2 (surface,
column), CH4, CO2, N2O, N2O5, NO3, HCHO, HOx, Cly, ClO, BrO, OClO,
ClONO2, HDO, CFCs, HCFCs, HFCs, Halons, CH3Br, CH3Cl, BrONO2, Rn,
SF6, glyoxal, methyl chloroform, H2O, H2O2, H2, O2 / N2 ratio, DMS, MSA,
OCS, halogenated VSLS, HONO, organic nitrates
4.
Trace gas isotopes and air mass tracers
CO2, methane, N2O, CO, (D, 13C, 14C, 17O, 18O, 15N) also in the aerosol
phase, for biomass burning, stratosphere, surface (radon, Be7, etc. )
5.
Others (this list is not complete, but is to capture info needed for
emissions, parameterizations dependent of land use/cover, etc.)
(Actinic flux, UV, short/long TOA surface, fire radiative power, land
proxies, lightning, dry and wet deposition, pollen (key species), ocean
colour, chlorophyll-A, LAI, PAR, FPAR, fluorescence, vegetation maps,
land use maps, burned areas, night light, fire counts, wet lands, ship
routes, forest inventory, biomass density, crop lands)
C. Key parameters needed for Urban applications (Under development) –
similar to what we covered previously, NEEDS further input
1. All Global NWP variables
(e.g., PBL) and others yet to be determined by WMO/GAW (plus
elements not covered in NWP)
2. Aerosols
aerosol mass, size distribution (or at least mass at 3 fraction sizes: 1,
2.5 and 10 micron), speciation and chemical composition, AOD at
multiple wavelengths, water content, ratio of mass to AOD, vertical
distribution of extinction, concentrations of metals
3. Reactive Gases, Trace gases, Ozone Precursors
Total ozone, profile ozone, surface ozone, NO, surface NO 2, PAN,
HNO3, NH3, CO, CO2, CH4, VOC (isoprene, terpenes, alcohols,
aldehydes, ketones, alkanes, alkenes, alkynes, aromatics), surface
SO2, HCHO, HOx
3
4.
Others
Actinic flux, fire radiative power, land proxies, dry and wet deposition,
pollen (key species)
Essential variables (list most essential, keep number < = ~10) are:
aerosol mass, size distribution (or at least mass at 3 fraction sizes: 1, 2.5
and 10 micron), speciation and chemical composition, AOD at multiple
wavelengths, water content, ratio of mass to AOD, vertical distribution
of extinction, profile ozone, surface ozone, surface NO2 , CO, surface
SO2 , CO2
4. For each application area we identified important sub-application areas, and
identified most important parameters to support them. This was used to help
identify the priority and cross cutting parameters to focus RRR on.
Sub-application Areas: (need to make a table showing which variables cut across
the sub application areas – also used in Excel requirements sheets – we can
ask specific experts to finish this list – of key parameters – and others to
complete sub-application areas – we want most important not all possible)
Forecasting
 volcanic ash (SO2, vertical ht, AOD, optical properties
 biomass burning smoke (PM trace gases (CO,O3, ..), BC absorption,
AOD, pbl, …)
 sand & dust (dust, AOD, depolarization, soil moisture,..
 pollen
 GHGs
 air quality,
 solar radiation (UV & energy)
Monitoring
 treaty/conventions (e.g., GHGs strat O3),
 air quality (regulatory & health (global burden of disease),
 ocean acidification,
 crop & ecosystem services,
 climate (radiative forcing,
 trends including oxidizing capacity,
 visibility,
 emission constraint/updating,
 water cycle including cryosphere
 ,,,,
Urban .. tbd
4
5. Priority variables were identified that cut across all application areas. These will be
the list that we MUST define requirements for. Ideally we will over time establish
requirements for more parameters.
Priority list:
Aerosol: PM2.5, PM10, BC, Dust, speciated, OA (including SOA), AOD,
AAOD, wet deposition (speciated)
GHGs: CO2, CH4, CFCs, HCFCs, N2O
Reactive Gases: O3, SO2, NO2, CO, NH3, HCHO, Isoprene, VOCs
(speciated), HOx
Isotopes, water vapor
Also: TOA and surface short/long rad, actinic flux, UV
Others (which we may/will not set requirements for .., clouds, pbl, tropopause
ht,
6. Observational Requirements:
At the 1st meeting the Task Team developed a strategy to begin the RRR process
and to populate the OSCAR data base for the above applications. “The process
will engage the SAGs and the SSC. The committee started the process of
identifying the atmospheric composition and related parameters needed to support
the applications and began to fill out an Excel table with user requirements that will
be used to populate the OSCAR data base after evaluation by the SAGs. The
SAGs will be asked to discuss the application areas, including the sorts of specific
applications that are important within the overarching application, and the
parameters needed for the applications (making suggestions for adding and/or
removing parameters) and continue filling out the tables of user requirements for
the parameters that fall in their domain.”
An update of this process was discussed.
Reviewed inputs received since the 1st workshop. Inputs in terms of excel sheets
came from John Ogren. Angele Benedetti, Sarah Wong and in text form
from others. Greenhouse gases quite fully developed also.
Sander Houweling lead a discussion on updates on GHG requirements and issues
with spreadsheet and entry. Issues included adding a row for horizontal
domain; discussion of what uncertainty referred to in the table (of the
observing system or of the observation itself to be used) , this included
whether to include bias or not, also the need to document/reference where
requrirements came from.
5
7. Decisions:
1. Modify spread sheet, eliminate columns for bias, add comment columns for
reference, for comments that will be included in SoG, a column for sub
application areas for priority,…
2. OSCAR allows variable to be registered without filling in requirements. So the
spreadsheet will include the comprehensive list of parameters, priority
parameters will be identified by color (meaning these MUST be filled out).
3. Separate sheets focused on specific parameters will be sent to lead persons
(aligned with SAGS). They will be responsible for filling out the
requirements.. including getting input from a broad community). They will
then sent to Greg, where all the sheets will be combined into one. This will
be used to populate OSCAR
8. Actions needed and timeline:
1. Identify leads for all sheets (Greg + Sec. – end of Aug.)
2. Spread sheet updated, combined input received to date, and separate sheets
sent out (Greg.. first week of Sept).
3. Spread sheets sent out and input gathered and returned (due back early NOV)
4. TTObsReq develop plan for SoG (due early NOV)
6
Appendix A.
AGENDA
Workshop on the TT-ObsReq-2
12 – 13 August 2015
MeteoSwiss
Zurich Airport
Switzerland
Meeting Goals
Meeting will be focused on:
1) prioritization of the important parameters to support the three finalized application
areas;
2) identification of requirements for a set of priority variables that cut across
application areas;
3) further development of the associated observation requirements;
4) discuss/review atmospheric composition requirements in other WMO application
areas (e.g., ag, climate change); and
5) discussion of plan to review/refine Statements of Guidance (gap analyses).
Preliminary Agenda
Wednesday, 12 August 2015
08.30 – 09.00
Registration
09.00 – 09.20
Welcome and logistics, introduction of participants (Oksana)
09.20 – 09.45
Objectives of workshop and updates (G. Carmichael)
09.45 – 10.30
-
10.30
Further Related Updates
GAW (Oksana)
WIGOS (Lars-Peter/Fuzzi)
Others?
– 11.00
11.00 – 12.00
Coffee break
Review of Application Areas (Carmichael)
7
Forecasting Atmospheric Composition (F)
- Review comprehensive parameter list
- Compile sub-applications list
- Identify most “essential” parameters
12.00 – 13.30
13.30 – 15.00
15.00 – 15.30
15.30 – 16.00
Lunch break
Review of Application Areas (continued)
Monitoring Atmospheric Composition (M)
- Review comprehensive parameter list
- Compile sub-applications list
- Identify most “essential” parameters
Coffee break
Review of Application Areas (continued)
Providing Atmospheric Composition information to support
services in urban and populated areas (U)
- Review comprehensive parameter list
- Compile sub-applications list
- Identify most “essential” parameters
16.00 – 17.00
Discussion of combined most “essential” parameters and
taking into consideration atmospheric composition parameters
needed in other WMO application areas (e.g., ag, climate
change);
17.00 – 17.30
Wrap-up of day 1 and organization of day 2 (Carmichael)
17.30
Adjourn
8
Thursday, 13 August 2015
09.00 – 09.30
Warm-up: what have we learnt so far?
09.30 – 10.30
Development of the associated observation requirements for
the most “essential” parameters
10.30 – 11.00
Coffee break
11.00 – 12.30
Development of the associated observation requirements for
the most “essential” parameters. Adaption of Excel template
and follow-on assignments.
12:30 – 13.30
Discussion of Statement of Guidance (SOG). SOG provides
an assessment of the adequacy of observations to fulfill
requirements and suggests areas of progress towards improved
use of space-based and surface-based observing systems.
Topics to be discussed: what is needed, what are starting points,
resources to draw upon, strategy moving forward.
13.30
Next steps and timelines
Close of workshop
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Appendix B.
Participants
Greg Carmichael, WMO EPAC SSC
Sander Houweling, SRON, Netherlands (GHG SAG)
Sandro Fuzzi, ISAC, CNR
Richard Eckman, CEOS (NASA), USA
Rosemary Munro, CGMS (EUMETSAT)
Sarah Wong, Environment Canada
Claus Zehner, ESA/ESRIN
Casper Labuschagne, SAWS
Hiroshi Koide, JMA
Anatoly Tsvetkov, Roshydromet
Dr. Ellsworth Judd Welton, NASA
Gelsomina Pappalardo, CNR/IMAA
Martin Schultz, FZ Jülich
Jochen Dibbern, DWD
Jörg Klausen, MeteoSwiss
Kjetil Tørseth, NILU
Julian Meyer-Arnek,
Keiichi Sato,
DLR
ACAP, Japan (only on 12th August)
10
Oksana Tarasova, WMO
Silvina Carou, WMO
Lars-Peter Riishojgaard, WMO
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