Table 1.
Instruments to be deployed at Cape Grim during SOAPEX-2.|
Species |
Partner no.* |
Technique |
|
OH/HO2 |
3 |
FAGE (Fluorescence Assay by Gas Expansion)(11). The FAGE instrument currently has a detection limit of 3x105 mol cm-3 for OH and 1.5x106 for HO2 for a 150 s integration time and signal/noise of 1. |
|
RO2/HO2 |
1, 2 |
PERCA (PEroxy Radical Chemical Amplifier). The PERCA has a detection limit of ~ 1x107 mol cm-3 for 10 min averaging times. |
|
NO3 and halogen oxide radicals |
1 |
DOAS (Differential Optical Absorption Spectroscopy) |
|
Photolysis frequencies including J(O1D) and J(NO2) |
1, 2, 3 |
Filter and spectral radiometers |
|
O3 |
4 |
Thermoelectron Model 49 ultraviolet ozone monitor |
|
NO |
1, 4 |
Custom-built NO/O3 chemiluminescence detectors |
|
NO2 |
1, 4 |
As above, with photochemical converter |
|
NOy |
1, 4 |
As above, with gold tube/CO converter |
|
NOy-HNO3 |
1 |
As above, with gold tube converter and denuder |
|
H2O2 and ROOH |
4 |
Dual-channel fluorometric detector |
|
HCHO |
4 |
Fluorometric detector based upon Hantzsh reaction |
|
HCHO and speciated aldehydes |
3 |
GC-Argon doped HID detection |
|
PAN |
1 |
Cryo-trapping and GC-ECD |
|
Alkyl nitrates |
1 |
GC-ECD |
|
Halocarbons |
1 |
GC-MS |
|
NMHCs (including isoprene), DMS |
3 |
High-frequency automated GC-FID using programmed temperature injection from a sorbent trap.) |
Table 2.
Existing measurements carried out continuously at Cape Grim.|
Species |
Partner no.* |
Technique |
|
CO |
4 |
RGA-3 (Reduced Gas Analyser) |
|
CO2 |
4 |
URAS-2T IRGA; Siemens Ultramat 5E |
|
CFCs |
4 |
GC-MS / HP5880 ECD (AGAGE) |
|
Meteorological data |
4 |
Standard instrumentation |
|
CN |
4 |
Auto-Pollak diffusion battery/ TSI 3020 |
|
Aerosol size distribution |
4 |
PMS-ASASP-X |
|
Rn/Rn daughters |
4 |
alpha detector/delay tank |
|
Particulate Carbon |
4 |
Magee Scientific Aethalometer |
|
CH4 |
4 |
GC-FID HP5880 |
*
Partner nos. correspond to the following: #1-University of East Anglia (UEA);