The
ozone and aerosol sonde working group is responsible for the activities
pertaining to ozonesondes and various aerosol sondes. The working group
representatives on the streering committe are:
Rene
Stubi, Senior Scientist, Federal Office of
Meteorology and
Climatology MeteoSwiss. Through 2011
Bryan Johnson, Global
Monitoring Division, National Oceanic and Atmospheric Administration,
Elected 2009
Terry
Deshler, Professor, Department of Atmospheric Science, University
of Wyoming. Through 2009.
----------------------------------
Notes on working group meeting
------------------------------------------------------------
Summary
of conclusions and recommended actions following the NDACC ozonesonde
working group
meeting: 5 - 6 February
2009 at the Forschungszentrum ICG-1/2, Juelich,
Germany.
1)
New data format
recommendations for submission of ozonesonde data to NDACC,
using a NASA
AMES 2160 data format for all new data to be submitted and, to the
extent possible, for old data to be resubmitted. The latter is desired
to maintain consistency of the data base.
The
following documents will guide you in preparing newly formatted data
files:. These files were developed by Peter von der Gathen, Pavla
Skrivankova, and Terry Deshler. Questions on implementing these
recommendations may be addressed to any of us three.
a) Word
document describing the independent, dependent, and auxilliary
variables.
b) Example file when the variables exceed the 132
character limit. Each record requires two lines.
i) With
explanations of the records
ii) With
no explanations - this file passes the data format checker
available below.
c) Example when the variables do not exceed the 132
character limit, Each record is on a single line.
i) With
explanations of the records
ii) With
no explanations - this file passes the data format checker
available below.
d) Code for data format checker,
requiring the arbirtrary limits on the
number of auxilliary variables and the number of auxilliary character
variables to be increased. This code is slightly different than what
you may already be using by increasing the limits mentioned. All of
this code is to be run from a unix machine.
i) dataex.f (fortran
code), dataex.exe
(executable)
ii) Scripts: np_dataex.csh -
to run dataex with minimal prompts
dataex.csh
to run dataex with full prompts
compile_link_dataex.csh
to compile and link
dataex.f:
2) The following actions were
proposed at the WG meeting, but no
further progress has been reported:
a)
Experimental comparison of three pump efficiency measurements (NASA,
NOAA, and U. Uwyoming)
b)
Completion of dual flight paper involving measurements in Sodankyla,
Payerne, Wallops Island, and McMurdo.
c)
Additional background current measurements following the suggestion
that background current may not be characterized properly, particularly
in the tropics.
------------------------------------------------End
of notes on working group meeting
--------------------------------------------------
DAAC Annual Report Form - required from each station once per year, prior to the steering committee meeting. Please email to Terry Deshler and Rene Stubi. The next steering committee meeting is in September 2009.
Standard operating procedures ozonesondesThe standard operating procedures to be used for NDACC ozonesonde operation are those agreed upon after the JOSIE 1996, 1998, and 2000 experiments (Smit et al., 2007) and the BESOS experiment (Deshler et al., 2008). The working draft of the BESOS/JOSIE SOPS is in nearly final form. The recommendation concerning solution strengths is to use the manufacturer's recommended solution strengths, which are 1.0% KI for Science Pump and 0.5% KI for ENSCI. The 0.5% KI solution is to use half of the buffers used for the 1.0% KI.
Current topics of concern:
Data format. The variable options within the NASA-Ames format have allowed individual investigators to use a variety of data formats and to include a variety of ancillary variables. Rene and I feel this variability has led to some difficulties both for the data providers and for the data users. We propose to focus in the coming year on providing some standardized recommendations regarding these points. This will be accomplished by:
1) Summarizing the data formats and ancillary variables currently in use and reported on the NDACC data base.
2) Summarize the format used by the WOUDC
3) Prepare a document to suggest a common data format that could be recommended to the community.
4) Allow NDACC investigators the opportunity to comment on this document.
5) Organize a meeting in earlly 2009 to finalize the working group recommendations.
6) Distribute these recommendations to the community and offer some support for conversion of historical data to the common format.
Homogenization of data sets which were collected using different ozonesonde manufacturers and non standard solution strengths. This may be particularly a problem for investigators which have used 1.0% KI in ENSCI sondes. Preliminary transfer functions have been proposed by Deshler et al. (2008) and Stubi et al. (2008), but additional work is required prior to acceptance of a more final transfer function. Work in this area is anticipated to continue.
Ozonesonde background. There is still uncertainty about which is the best background to use and the best way to determine that background. Usually this background is determined by a filter measurement. Measurements with zero air are preferable particularly in tropical and humid regions; however, this is often not possible. Recent work in this area can be found in Voemel et al. (2009) and Stubi et al. (2008). We encourage additional discussion.
Stations
Station name |
Lat |
Lon |
Principal investigator |
| Alert | 82.50°N |
62.33°W
|
David Tarasick, AES |
| Eureka | 80.05°N |
86.42°W
|
David Tarasick, AES |
| Ny-Ålesund | 78.92°N |
11.93°E
|
Peter von der Gathen, AWI |
| Thule | 76.53°N |
68.74°W
|
Paul Eriksen, DMI |
| Scoresbysund | 70.50°N | 22.00°W | Paul Eriksen, DMI |
| Salekhard | 66.70°N | 66.70°E | Valery Dorokhov, CAO |
| Sodankylä | 67.37°N |
26.65°E
|
Rigel Kivi, FMI |
| Yakutsk | 62.03°N | 129.63°E | Valery Dorokhov, CAO |
| Legionowo | 52.40°N | 20.97°E | Grzegorz Zablocki, Centre of Aerology IMWM |
| De Bilt | 52.10°N |
5.18°E
|
Marc Allaart, KNMI |
| Uccle | 50.8°N |
4.35°E
|
Hugo De Backer, KMI |
| Praha |
50.02°N |
14.45°E
|
Pavla Skrivankova, Czech Hydrometeorological Institute |
| Hohenpeissenberg | 47.80°N |
11.02°E
|
Hans Claude, DWD |
| Payerne | 46.82°N |
6.95°E
|
René Stubi, MeteoSwiss |
| Obs. de Haute Provence | 43.94°N |
5.71°E
|
Sophie Godin-Beekmann and Gérard Ancellet, CNRS |
| Boulder |
40.??°N |
105.??°W
|
Bryan Johnson, NOAA |
| Wallops Island | 37.94°N |
75.46°W
|
Frank Schmidlin, WFF, NASA |
| Izaña | 28.46°N |
16.26°W
|
Emilio Cuevas and Alberto Redondas, INM |
| Hilo | 19.72°N |
155.07°W
|
Bryan Johnson, NOAA |
| Paramaribo | 5.81°N |
55.21°W
|
Marc Allaart, KNMI |
| American
Samoa |
??°N |
??°W
|
Bryan Johnson, NOAA |
| Île de la Réunion | 21.8°S |
55.5°E
|
Françoise Posny, Univ. de la Réunion |
| Lauder | 45.05°S |
169.68°E
|
Greg Bodeker, NIWA |
| Dumont d'Urville | 66.67°S |
140.01°E
|
Marion Marchand, CNRS |
| Neumayer | 70.62°S |
8.37°E
|
Gert König-Langlo, AWI |
| McMurdo | 77.85°S |
166.63°E
|
Terry Deshler, Univ. of Wyoming |
| South Pole | 90.00°S | . | Bryan Johnson, NOAA |
Annual reports from the working group
The ozone and aerosol sonde working group representatives assemble a yearly report on the activities of the measurement sites as well as other relevant activities. These reports are available as PDF documents and can be downloaded by clicking on the links below. From 2001 the reporting takes place via a standardised form (MS Word format) that the station PIs fill in and send to the working group representatives.
2005
Ozonesonde steering
committee report to Ozonesonde PIs.
Letter from Mike Kurylo and Geir Braathen explaining the change of name from NDSC to NDACC
Report presented at the SC meeting in Thun, Switzerland, Sept. 2000 (1853 kBytes)
Report presented at the SC meeting in Sapporo, Japan, Oct. 1999 (2593 kBytes)
Report presented at the SC meeting in St. Denis, France, Dec. 1998 (1031 kBytes)
Report presented at the SC meeting in Ny-Ålesund, Norway, Aug. 1997 (59 kBytes)
First Excel sheet that accompanies the 1997 report (374 kBytes).
Second Excel sheet that accompanies the 1997 report (34 kBytes).
Ozonesonde PI meeting, Potsdam, 1998
A meeting for all the ozonesonde PIs of the NDSC and other stations was hosted by AWI, Potsdam in July 1998. The report from this meeting can be downloaded by clicking on the link below.