manning et al icp final - niwa
TRANSCRIPT
Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
The ‘Cucumbers’ and ‘GOLLUM’ programmes – eight years of cylinder intercomparison measurements of greenhouse gases and O2
A. C. Manning1, A. Jordan2, R. F. Keeling3, I. Levin4, M. Schmidt5, R. E. M. Neubert6, A. J. Etchells1, M. Hewitt1, B. Steinberg2, T. Aalto7, F.
Apadula8, J. Arduini9, M. L. Bender10, K. Bracchi3, G. W. Brailsford11, W. A. Brand2, A. C. Cox3, M. Delmotte5, A. Di Diodato12, B. Hall13, S.
Hammer4, L. Haszpra14, J. Hatakka7, L. Huang15, V. Kazan5, D. Kitzis13, R. L. Langenfelds16, J. V. Lavrič2, M. Leuenberger17, A. Lindroth18, M.
Lopez5, T. Machida19, F. Meinhardt20, J. Moncrieff21, J. A. Morguí22, T. Nakazawa23, J. Necki24, W. J. Paplawsky3, S. Piacentino25, J. M. Richter2, L. Ries20, T. G. Spain26, L. P. Steele16, B. B. Stephens27,11, J. Strom28, Y. Tohjima19, S. van der Laan6,17, A. T. Vermeulen29, B. Wastine5, P. A.
Wilson1 and D. E. J. Worthy15
Slide 3 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Talk outline What are these programmes?
Some data and results.
What next?
Slide 4 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
1) GOLLUM:Global Oxygen Laboratories Link Ultra‐precise Measurements‐ First ever O2 intercomparison programme (of more than 2 labs); since 2004.
2) ‘Cucumbers’:‐ emphasis on field stations and rapid turnaround to build up ICP time series.‐ funded by EU’s CarboEurope, IMECC, and InGOS projects; since 2005.
Slide 5 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
What is unique about these programmes GOLLUM:
– Only comparison programme including all atmospheric O2 labs.• Especially critical since there is no WMO CCL for O2.
– Also includes Ar/N2, though not many report these data.
Cucumbers:– Much more frequent analyses than WMO Round Robins (but less global).
• Participants analyse Cucumbers every 9 months (on average).– Focussed on in situ field stations, in contrast to labs.– 9 atmospheric species included
• CO2, CH4, N2O, SF6, CO, H2, O2, 13C‐CO2, 18O‐CO2
Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
BilboBilbo
FrodoFrodo
MPI-BGC
CIO-RUG
NIWA
CMAR
TU
NCAR
SIO
PU
UEANIES
UBERN
• 2 sets of 3 high pressure cylinders of air
• Travelling in opposite directions around world
• Rapid turnover time (5 weeks)
•About 18 months for full rotation.
GOLLUM rotations
Inter-1: 3 Tanks (UEA)Inter-2: 3 Tanks (UEA)
Euro-1: 3 Tanks (UHEI)Euro-2: 3 Tanks (LSCE)Euro-3: 3 Tanks (CIO-RUG)Euro-4: 3 Tanks (MPI-BGC)Euro-5: 3 Tanks (MPI-BGC)
INTERINTER--22 EUROEURO--22
EUROEURO--11
INTERINTER--11
EUROEURO--33
CIO-RUGEUROEURO--44
CMN
TTA
ZEP
PRS
LAM
OXK
LUT
JFJ
BIK
MHD
PUY
HUN
TRN
PAL
KASEUROEURO--55
UHEI
HYY
EnCan
CMAR
NIES NOAA
UBERN
MPI-BGC
MUE
CBW
SCH
ZUG
UEA-ENV+ WAO
LSCE
NOR
Cucumbers rotations
Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
BilboBilbo
FrodoFrodo
MPI-BGC
CIO-RUG
NIWA
CMAR
TU
NCAR
SIO
PU
UBERN
UEANIES
CVR
MSC
JFJAMS
F3IVI
GandalfGandalf
CVR
IVI F3
CVR
IVI
GOLLUM rotations
Slide 9 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
http://gollum.uea.ac.uk/
Slide 10 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
http://cucumbers.uea.ac.uk/
Slide 11 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Logsheets for submitting data
Slide 12 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
New ASCII text file for submitting data Allows automated generation of files for submission by participants.
Should result in much, much less errors and mistakes!!
And big reduction in manpower requirements.
Slide 13 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Results Would love to show you lots of results and interpretations from these programmes but:
– Since 01Oct I have received 116 logsheets of data.• 1/2 to 2/3 of logsheets received had errors and mistakes.
– Takes weeks and 10’s of emails to sort out these problems.
Instead:– Some example graphs
• Illustrates wealth of information available• But please don’t read too much into any individual station/lab’s record.
Slide 14 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
GOLLUM: Everyone: avg of 3 cylinders, differenced from Scripps2004
Slide 15 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
GOLLUM: Groningen O2
Slide 16 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
GOLLUM: Max Planck O2
Slide 17 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
GOLLUM: NIES O2
Slide 18 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Cucumbers: Everyone: avg of 3 cylinders, differenced from central lab
Slide 19 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Cucumbers: Everyone: CH4
Slide 20 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Cucumbers: Everyone: N2O
Slide 21 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Cucumbers: Everyone: SF6
Slide 22 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Cucumbers: Everyone: CO
Slide 23 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Conclusions from these results Mixed results:
– CO2 and CH4, lots, but not all, stations meeting WMO compatibility goals.– Other species much worse (but labs also struggle).– Value of these programmes is:
• simply to quantify these compatibilities – had never been done before.• Highlight struggling stations that need our help.• Identify problems, allowing action to be taken (but not as fast as desired).
Compatibility results change over time, so important to do rotations as fast as possible– 9 months is not really fast enough for this.
Results show compatibility for cylinder analyses– not for in situ measurement.– Does not incorporate all sources of in situ measurement uncertainty (inlets, tubing,
pumps, drying).
Slide 24 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
CarbonTracker‐Europe; Peters et al., GCB (2010)
Slide 25 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
CarbonTracker‐Europe; Peters et al., GCB (2010) Sensitivity studies; for year 2005:
7‐340‐73(43%)‐96(‐190%)‐172(‐59%)T2
‐2‐375‐53(4%)182(70%)‐504(19%)O4
‐69‐618‐33(‐35%)‐50(‐147%)‐534(27%)O3
‐7‐392‐32(‐37%)44(‐59%)‐404(‐4%)O2
0‐367‐53(4%)167(56%)‐480(14%)F29‐333‐59(16%)200(87%)‐473(12%)D2
‐46‐535‐69(35%)75(‐30%)‐541(28%)B3
21‐291‐46(‐10%)78(‐27%)‐322(‐24%)B2
‐16‐423‐71(39)124(16%)‐476(13%)B1/M2
0‐366‐51107‐422base(%)Tg C/yrTg C/yrTg C/yrTg C/yr
DeviationTotalOtherCropForestSimulation
Slide 26 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Upgrades in progress and planned for near future ASCII text files accepted
Automated logsheet error checking
Automated email bugging!!
Include numerical data tables on web of inter‐laboratory offsets
Sausage flask results processed and on web (GOLLUM)
Add new ‘Gandalf’ rotation (GOLLUM)
Cylinder pressure histories
Archive old versions
Improve time axis labelling.
Slide 27 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
GOLLUM: Cylinder pressure histories
Slide 28 of 28Andrew Manning, UEA/ENV ([email protected]) GGMT, Wellington, New Zealand, 25‐28Oct2011
Programmes at a crossroads – should we continue? GOLLUM will continue, as O2 community want this.
– If Cucumbers programme dropped, should at least continue Euro‐3 (O2 stations) and Inter‐2 (European and international labs).
Unclear if Cucumbers programme should continue, especially after chats at this mtg
No point in continuing if data are not used– Participants need to have an interest in their own results.– Participants need to submit data on time, not once every 2 years just before GGMT.– Discussions needed how to make use of these data at a higher level.– WCC’s and EMPA to help stations that are clearly struggling (Recommendation?)