TY - JOUR SP - ? Y1 - 2005/10/15/ AV - public ID - discovery2232 SN - 0021-9606 UR - https://discovery.ucl.ac.uk/id/eprint/2232/ JF - J CHEM PHYS PB - AMER INST PHYSICS N2 - State-of-the-art experiments and calculations are used to record and assign the data obtained in the weakly absorbing blue energy region of the H2O spectrum. Continuous-wave cavity ringdown absorption spectroscopy with Doppler resolution is used to probe the range from 25 195 to 25 470 cm(-1) with an absorption sensitivity of similar to 1 parts per 10(9) (ppb)/cm. 62 lines of the polyad nu(OH)=8 are reported, of which 43 are assigned using variational nuclear calculations. The study includes absorption line intensities (in the range of 10(-28)-10(-26) cm/molecule) for all lines and self-broadening pressure coefficient for a few lines. The newly obtained energy levels are also reported. (c) 2005 American Institute of Physics. KW - ENHANCED ABSORPTION-SPECTROSCOPY KW - OPTICAL PARAMETRIC OSCILLATOR KW - POTENTIAL-ENERGY SURFACE KW - TUNABLE DIODE-LASER KW - IN-SITU DETECTION KW - DOWN SPECTROSCOPY KW - RAPIDLY SWEPT KW - QUANTITATIVE-ANALYSIS KW - HETERODYNE-DETECTION KW - LINE PARAMETERS VL - 123 IS - 15 A1 - Dupre, P A1 - Gherman, T A1 - Zobov, NF A1 - Tolchenov, RN A1 - Tennyson, J TI - Continuous-wave cavity ringdown spectroscopy of the 8 nu polyad of water in the 25 195-25 340 cm(-1) range EP - ? ER -