Griffith, D W T*; Jones, N B*; McNamara, B*; Paton Walsh, C; Bell, W; Bernardo, C* (2003) Intercomparison of NDSC ground-based solar FTIR measurements of atmospheric gases at Lauder, New Zealand. J. Atmos. Ocean. Technol., 20 (8). pp. 1138-1153.

Paton Walsh, C; Bell, W; Gardiner, T D; Swann, N R; Howieson, I (2000) Assessment of stratospheric composition. NPL Report. COEM 42

Hase, F*; Blumenstock, T*; Paton Walsh, C (1999) Analysis of the instrumental line shape of high-resolution Fourier transform IR spectrometers with gas cell measurements and new retrieval software. Appl. Opt., 38 (15). pp. 3417-3422.

Vance, A*; Bell, W; Paton Walsh, C; Jolliffe, B W (1998) Determination of the line shape of a fourier transform infra-red spectrometer using an infra-red helium-neon laser and a low pressure gas cell. NPL Report. COEM 8

Paton Walsh, C; Bell, W; Blumenstock, Th*; Chipperfield, M P*; Galle, B*; Mellqvist, J*; Notholt, J*; Zander, R*; Demoulin, P*; Mathieu, E* (1998) Ground-based FTIR measurements from a series of european sites during the winter of 1995/96 and a comparison with a 3D chemical transport model: evidence of chlorine activation and ozone depletion. NPL Report. COEM 9

Bell, W; Paton Walsh, C; Woods, P T; Nieuwenkemp, G*; Alink, A*; Borowiak, A*; De Saeger, E*; Macé, T*; Sutour, Ch.*; Rudolf, W* (1998) First annual progress report on standards, measurement and testing programme project SMT4-CT96-2094. Harmonising of air quality measurements in Europe ('HAMAQ'). NPL Report. COEM 4

Bell, W; Paton Walsh, C; Woods, P T; Donohoe, L; Gould, A; Secker, D; Naughten, S; Swann, N R; Martin, N A; Page, L E; Chipperfield, M P*; Lee, A M*; Pullen, S* (1998) Groundbased FTIR measurements of stratospheric trace species from Aberdeen during winter and spring 1993/94 and 1994/95 and comparison with a 3D model. J. Atmos. Chem., 30 (1). pp. 119-130.

Bell, W; Paton Walsh, C; Woods, P T; Martin, N A; Gardiner, T; Swann, N R (1997) The development and utilisation of advanced remote monitoring techniques for atmospheric measurements. NPL Report. CQM 133

Woods, P T; Bell, W; Paton Walsh, C; Gardiner, T; Martin, N A (1997) Groundbased measurements of stratospheric trace species around 60 degrees N as part of the SESAME campaign. NPL Report. QM 129

Bell, W; Paton Walsh, C; Gardiner, T; Woods, P T; Swann, N R; Martin, N A; Donohoe, L; Chipperfield, M P* (1997) Measurements of stratospheric chlorine monoxide (C10) from Groundbased FTIR observations. J. Atmos. Chem. (24). pp. 285-297.

Chipperfield, M P*; Burton, M*; Bell, W; Paton Walsh, C; Blumenstock, T*; Coffey, MT*; Hannigan, J W*; Mankin, W G*; Galle, B*; Mellqvist, J*; Mahieu, E*; Zander, R*; Notholt, J*; Sen, B*; Toon, G C* (1997) On the use of HF as a reference for the comparison of stratospheric observations and models. J. Geophys. Res., 102 (D11). pp. 12901-19.

Paton Walsh, C; Bell, W; Gardiner, T; Swann, N R; Woods, P T; Notholt, J*; Schutt, H*; Galle, B*; Arlander, W*; Mellqvist, J* (1997) An uncertainty budget for groundbased FTIR column measurements of HCI, HF, N2O and HNO3 deduced from results of side-by-side instrument intercomparisons. J. Geophys. Res., 102 (D7). pp. 8867-8873.

Chipperfield, M P*; Burton, M*; Bell, W; Paton Walsh, C; Blumenstock, Th*; Coffey, MT*; Hannigan, J W*; Mankin, W G*; Galle, B*; Mahieu, E*; Zander, R*; Notholt, J*; Sen, B*; Toon, G C* (1997) The use of HF as a reference for the comparison of stratospheric observations and models. J. Geophys. Res., 102. pp. 12901-12919.

Martin, N A; Woods, P T; Bell, W; Paton Walsh, C; Gardiner, T; Swann, N R (1996) The development and utilisation of advanced remote monitoring techniques for atmospheric measurements. NPL Report. QM 127

Martin, N A; Swann, N R W; Driskell, N T*; Allott, T P*; Noyes, P A*; Bell, W; Paton Walsh, C; Woods, P T (1996) Final report to the British Council. Measurement of stratospheric ozone depletion and air pollution using tunable diode lasers. NPL Report. QM 120

Martin, N A; Swann, N R W; Driskell, N T*; Allott, T P*; Noyes, P A*; Bell, W; Paton Walsh, C; Woods, P T (1996) Final report to the EC (NPL contribution), contract no. EV5V-93- 0350. Ground based atmospheric trace gas measurements by tunable laser heterodyne spectrometry in the mid-infrared. NPL Report. QM 121

Paton Walsh, C; Woods, M J; Sephton, J P; Woods, S A; Lucas, S E M; Rossiter, M J; Williams, T T; Bass, G A (1996) 131I diagnosis and therapy capsules and low dose rate 125I and 137Cs brachytherapy sources. Calibration of the NPL secondary standard radionuclide calibrator. Nucl. Instrum. Methods Phys. Res. A, Accel. Spectrom. Detec. Assoc. Equip., 369 (2-3). pp. 703-708.

Woods, M J; Munster, A S; Sephton, J P; Lucas, S E M; Paton Walsh, C (1996) Calibration of the NPL secondary standard radionuclide calibrator for 32P, 89Sr and 90Y. Nucl. Instrum. Methods Phys. Res., A329 (2-3). pp. 698-702.