1. Alfred Wiedensohler & Kay Weinhold
Quality assurance / closure studies for particle number concentration measured by mobility spectrometers
Alfred Wiedensohler & Kay Weinhold
+ PSI, CNRS, NILU, UHEL

2. Onsite Intercomparison with an additional CPC
TSI CPCs model 3772 are provided by following institutes:
PSI
UHEL
CNRS (still missing)
NILU
TROPOS
The CPCs will be circulates in a regional sub-network to be compared to the MPSS
After each circulation, the CPCs will be checked and calibrated at the WCCAP
Time series of particle number concentrations and size distributions are sent to TROPOS for evaluation.

3. CPC Calibration – adjustment to 10 nm

5. BE Vielsalm BG BEO Moussala BO Chacaltaya Not reachable CH
Country
Station BE
Vielsalm BG
BEO Moussala BO
Chacaltaya
Not reachable CH
Jungfraujoch
Non-EU CZ
Kosetice
Usti
OdCOM
Prague Suchdol DE
Waldhof
UBA
Schauinsland
Neuglobsow
Zugspitze
Hohenpeissenberg
DWD
Melpitz
TROPOS
Leipzig TROPOS
Leipzig Eisenbahnstr.
Leipzig Mitte
BfUL/TROPOS
Leipzig West
Annaberg
BfUL
Dresden - Nord
Dresden - West ES
Granada
Madrid
Montseny FI
Varriö
Hyytiälä
Pallas FR
SIRTA/Gif
Puy de Dome GB
Kensington
???
Auchencorth Moss GR
Finokalia
DEM Athens HU
K-Pustza IE
Mace Head IT
JRC Ispra
Mt.Cimone LT
Preila NL
Cabauw NO
Birkenes
Non-EU
Zeppelin
Not reachable NP
Pyramid SE
Hyltemossa
Norunda

6. BOX1 NILU CPC IE
Mace Head UK
Auchencorth Moss
Christine Braban FR
SIRTA/Gif
Valérie Gros BE
Vielsalm
Benjamin Bergmans NL
Cabauw
Bas Henzing NO
Birkenes
Chris Lunder
BOX2 - UHEL CPC FI
Hyytiälä
Pasi Aaalto
Pallas
Asmi Eija SE
Hyltemossa
Adam Kristenson
Norunda
Radovan Krejci

7. BOX3 - CNRS CPC, still missingCy
Agia Marina Xyliatou
Jean Sciare GR
Finokalia
Nikolaos Mihalopoulos
DEM Athens
Eleftheriadis Konstantinos HU
K-Pustza
András Hoffer BG
BEO Moussala
Ivo Kalapov
BOX4 - TROPOS CPC ES
Granada
Esther Coz
Arenosillo
Mar Sorribas Panero
Montseny
Noemi Perez
Madrid DE
Hohenpeissenberg
Harald Flentje
Melpitz
Alfred Wiedensohler

8. BOX5 - PSI CPC CZ
Kosetice
Vladimir Zdimal
Prague Suchdol FR
Puy de Dome
Karine Sellegri IT
Mt.Cimone
Angela Marinoni
JRC Ispra
JP Putaud CH
Jungfraujoch
Martin Gysel