\\ Species Tag: & 18003 & Name:& H$_2$O \\ Version: & 7 & & Water \\ Date: & September 2012 & &ground state \\ Contributor:& L.H. Coudert & & \\ & S. Yu & & \\ & J.C. Pearson & & \\ Lines Listed: & 1376 & Q(300.0)=& 178.122 \\ Freq. (GHz) $<$ & 10~000 & Q(225.0)=& 116.021 \\ Max. J: & 27 & Q(150.0)=& 63.678 \\ LOGSTR0= & -20 & Q(75.00)=& 23.170 \\ LOGSTR1= & -20 & Q(37.50)=& 8.580 \\ Isotope Corr.: & 0.0 & Q(18.75)=& 3.033 \\ Egy. (cm$^{-1}$) $>$& 0.0 & Q(9.375)=& 1.257 \\ $\mu_a$ = & & A=& 835840.3 \\ $\mu_b$ = & 1.8546 & B=& 435351.7 \\ $\mu_c$ = & & C=& 278138.7 \headend \textbf{\emph{This catalog entry represents pure rotation transitions in the ground state only.}} The frequency analysis includes the ground state and first four excited vibrations and was based on S. Yu, J.C. Pearson, B.J. Drouin, M.-A. Martin-Drumel, O. Pirali, M. Vervloet, L.H. Coudert, H.S.P. Muller and S. Brunken, J. Mol. Spectrosc. 279 (2012) 16-25. The H$_2$O data set consists of three different types of data: microwave transitions, rotational energy levels, FIR and IR lines recorded using high-resolution techniques. The fit results in a reduced RMS of 1.06 obtained for a combination of the the five states. The following 15~344 data with the maximum $J$-value of 27 were introduced in a weighted least-squares fit procedure in which each data point was given a weight equal to the inverse of its experimental uncertainty squared: (a) 642 microwave transitions from \\(1) S. Golden, T. Wentink, R. Hillger, M. W. P. Strandberg, Phys. Rev. 73 (1948) 92-93. \\(2) W. C. King, W. Gordy, Phys. Rev. 93 (1954) 407-412. \\(3) M. Lichtenstein, V. E. Derr, J. J. Gallagher, J. Mol. Spectrosc. 20 (1966) 391-401. \\(4) L. Frenkel, T. Sullivan, M. A. Pollack, T. J. Bridges, Appl. Phys. Lett. 11 (1967) 344-345. \\(5) M. A. Pollack, L. Frenkel, T. Sullivan, Phys. Lett. A 26 (1968) 381-382. \\(6) W. Benedict, M. Pollack, W. {Tomlinson, III}, IEEE J. Quant. Electronics 5 (1969) 108-124. \\(7) S. G. Kukolich, J. Chem. Phys. 50 (1969) 3751-3755. \\(8) K. M. Evenson, J. S. Wells, L. M. Matarrese, L. B. Elwell, Appl. Phys. Lett. 16 (1970) 159-162. \\(9) G. Steenbeckeliers, J. Bellet, C. R. Acad. Sci. B 273 (1971) 471-474. \\(10) C. Huiszoon, Rev. Sci. Instrum. 42 (1971) 477-481. \\(11) R. S. Winton, Ph.\ D. Thesis, Duke University (1972). \\(12) F. C. {De Lucia}, P. Helminger, R. L. Cook, W. Gordy, Phys. Rev. A 5 (1972) 487-490. \\(13) T. G. Blaney, C. C. Bradley, G. J. Edwards, D. J. E. Knight, Phys. Lett. A 43 (1973) 471-472. \\(14) M. Herman, J. W. C. Johns, A. R. W. McKellar, Can. J. Phys. 57 (1979) 397-401. \\(15) H. Kuze, Astrophys. J. 239 (1980) 1131-1133. \\(16) A. V. Burenin, T. M. Fevral'skikh, E. N. Karyakin, O. L. Polyansky, S. M. Shapin,J. Mol. Spectrosc. 100 (1983) 182-192. \\(17) P. Helminger, J. K. Messer, F. C. {De Lucia}, Appl. Phys. Lett. 42 (1983) 309-310. \\(18) O. I. Baskakov, V. A. Alekseev, E. A. Alekseev, B. I. Pelevoi, Opt. Spectrosk, 63 (1987) 1016-1018. \\(19) S. P. Belov, I. N. Kozin, O. L. Polyansky, M. Yu. Tret'yakov, N. F. Zobov, J. Mol. Spectrosc. 126 (1987) 113-117. \\(20) J. C. Pearson, T. Anderson, E. Herbst, F. C. {De Lucia}, P. Helminger, Astrophys. J. 379 (1991) L41-L43. \\(21) T. Amano, Flavio Scappini, Chem. Phys. Lett. 182 (1991) 93-95. \\(22) J. C. Pearson, Ph.\ D. Thesis, Duke University (1995). \\(23) F. Matsushima, H. Odashima, T. Iwasaki, S. Tsunekawa, K. Takagi, J. Mol. Struct. 352/353 (1995) 371-378. \\(24) P. De Natale, L. Lorini, M. Inguscio, I. G. Nolt, J. H. Park, G. Di Lonardo, L. Fusina, P. A. R. Ade, A. G. Murray, Appl. Opt. 33 (1997) 8526-8532. \\(25) K. V. Chance, K. Park, K. M. Evenson, J. Quant. Spectrosc. Radiat. Tansfer 59 (1998) 687-688. \\(26) G. Yu. Golubiatnikov, J. Mol. Spectrosc. 230 ( 2005) 196-198. \\(27) F. Matsushima, N. Tomatsu, T. Nagai, Y. Moriwaki, K. Takagi, J. Mol. Spectrosc. 235 (2006) 191-199. \\(28) G. Yu. Golubiatnikov, V. N. Markov, A. Guarnieri, R. {Kn\"ochel}, J. Mol. Spectrosc. 240 (2006) 251-254. \\(29) G. Cazzoli, C. Puzzarini, M. E. Harding, {J\"urgen} Gauss, Chem. Phys. Lett. 473 (2009) 21-25. \\(30) G. Cazzoli, C. Puzzarini, G. Buffa, O. Tarrini, J. Quant. Spectrosc. Radiat. Tansfer 110 (2009) 609-618. \\(31) Yu et al., J. Mol. Spectrosc. 279 (2012) 16-25. (b) 2169 rotational energy levels from \\(1) R. Lanquetin, L. H. Coudert, C. Camy-Peyret, J. Mol. Spectrosc. 206 (2001) 83-103. (c) 12~728 FIR and IR transitions from \\(1) J. Kauppinen, K. Jolma, V.-M. Horneman, Appl. Opt. 21 (1982) 3332-3336. \\(2) J. W. C. Johns, J. Opt. Soc. Am. B 8 (1985)1340-1354. \\(3) V. Dana, J.-Y. Mandin, C. Camy-Peyret, J.-M. Flaud, J.-P. Chevillard, R. L. Hawkins, J.-L. Delfau, Appl. Opt. 31 (1992) 1928-1936. \\(4) R. A. Toth, J. Opt. Soc. Am. B 10 (1993) 1526-1544. \\(5) R. A. Toth, J. Opt. Soc. Am. B 10 (1993) 2006-2029. \\(6) R. Paso, V.-M. Horneman, J. Opt. Soc. Am. B 12 (1995) 1813-1838. \\(7) S. N. Mikhailenko, Vl. G. Tyuterev, K. A. Kepler, B. P. Winnewisser, M. Winnewisser, G. Mellau, S. Klee, K. Narahari Rao, J. Mol. Spectrosc. 184 (1997) 330-349. \\(8) R. A. Toth, J. Mol. Spectrosc. 190 (1998) 379-396. \\(9) R. A. Toth, J. Mol. Spectrosc. 194 (1999) 28-42. \\(10) S. N. Mikhailenko, Vl. G. Tyuterev, V. I. Starikov, K. K. Albert, B. P. Winnewisser, M. Winnewisser, G. Mellau, C. Camy-Peyret, R. Lanquetin, J.-M. Flaud, J. W. Brault, J. Mol. Spectrosc. 213 (2002) 91-121. \\(11) V.-M. Horneman, R. Anttila,J. {Pietil\"a}, S. Alanko, M. Koivusaari, J. Mol. Spectrosc. 229 ( 2005) 89-107. \\(12) L. H. Coudert, O. Pirali, M. Vervloet, R. Lanquetin, C. Camy-Peyret, J. Mol. Spectrosc. 228 (2004) 471-498. \\(13) O. L. Polyansky, J. R. Busler, B. Guo, K. Zhang, P. F. Bernath, J. Mol. Spectrosc. 176 (1996) 305-315. \\(14) O. L. Polyansky, J. Tennyson, P. F. Bernath, J. Mol. Spectrosc. 186 (1997) 213-221. \\(15) O. L. Polyansky, N. F. Zobov, S. Viti, J. Tennyson, P. F. Bernath, L. Wallace, J. Mol. Spectrosc. 186 (1997) 422-427. \\(16) O. L. Polyansky, personal communication (1997). \\(17) M. P. Esplin, R. B. Watson, M. L. Hokes, L. S. Rothman, J. Quant. Spectrosc. Radiat. Transfer 60 (1998) 711-739. \\(18) N. F. Zobov, O. L. Polyansky, J. Tennyson, J. A. Lotoski, P. Colarusso, K.-Q. Zhang, P. F. Bernath, J. Mol. Spectrosc. 193 (1999) 118-136. \\(19) N. F. Zobov, O. L. Polyansky, J. Tennyson, S. V. Shirin, R. Nassar, T. Hirao, T. Imajo, P. F. Bernath, L. Wallace, Astrophys. J. 530 (2000) 994-998. \\(20) P.-F. Coheur, P. F. Bernath, M. C. Carleer, R. Colin, O. L. Polyansky, N. F. Zobov, S. V. Shirin, R. J. Barber, J. Tennyson, J. Chem. Phys. 122 ( 2005) 074307. \\(21) Yu et al., J. Mol. Spectrosc. (2012), http://dx.doi.org/10.1016/j.jms.2012.07.011. In this version, the line intensity calculation is slightly more complicated than in the case of a rigid molecule because the current approach treats the bending $\nu_2$ mode as a large amplitude motion parameterized by the large amplitude coordinate $t$ = cos($\theta$), where $\theta$ is the bending angle. For this reason, a dipole moment value corresponding to the equilibrium configuration was not used. Instead, the dipole moment function was written as an expansion in terms of the large amplitude corrdinate $t$. The reader is referred to the following two papers for details: \\(1) L. H. Coudert, J. Molec. Spectrosc. 181 (1997) 246-273. \\(2) L. H. Coudert, G. Wagner, M. Birk, Yu. I. Baranov, W. J. Lafferty, and J.-M. Flaud, J. Molec. Spectrosc. 251 (2008) 339-357. Details on the intensities validation can be found in Yu et al. J. Mol. Spectrosc. 279 (2012) 16-25.