The GEISA 2003 sub-database on line transition parameters
Details of changes since the 1997 edition of GEISA

The molecule names and their corresponding identification codes are in the two first columns of the table: in red are molecules updated in the 2003 edition of GEISA with more entries. and, in blue, are molecules updated with less (suppression of duplicated information). The following columns give respectively: the number of entries in GEISA-97, GEISA 2003 and the difference in contents between both editions, for each molecule.

Molecule	ID.	GEISA 1997 : # entries	GEISA 2003 : # entries	Difference : # entries
H2O	1	50,217	58,726	8,509
CO2	2	62,816	76,826	14,010
O3	3	281,607	319,248	37,641
N2O	4	26,771	26,681	-90
CO	5	13,515	13,515	0
CH4	6	66,883	216,196	149,313
O2	7	6,292	6,290	-2
NO	8	94,738	99,123	4,385
SO2	9	38,853	38,853	0
NO2	10	100,680	104,224	3,544
NH3	11	11,152	29,082	17,930
PH3	12	4,635	11,740	7,105
HNO3	13	171,504	171,504	0
OH	14	41,786	42,866	1,080
HF	15	107	107	0
HCl	16	533	533	0
HBr	17	576	1,294	718
HI	18	237	806	569
ClO	19	7,230	7,230	0
OCS	20	24,922	24,922	0
H2CO	21	2,702	2,701	-1
C2H6	22	14,981	14,981	0
CH3D	23	11,524	35,518	23,994
C2H2	24	1,668	3,115	1,447
C2H4	25	12,978	12,978	0
GeH4	26	824	824	0
HCN	27	2,775	2,550	-225
C3H8	28	9019	8983	-36
C2N2	29	2,577	2,577	0
C4H2	30	1,405	1,405	0
HC3N	31	2,027	2,027	0
HOCl	32	15,565	17,862	2297
N2	33	117	120	3
CH3Cl	34	9,355	18,344	8,989
H2O2	35	100781	100781	0
H2S	36	20,788	20,788	0
HCOOH	37	3,388	3,388	0
COF2	38	54,866	83,750	28,884
SF6	39	11,520	11,520	0
C3H4	40	3,390	3,390	0
HO2	41	26,963	38,804	11,841
ClONO2	42	32,199	32,199	0
Total lines :		1,346,466	1,668,371	+ 321,905

 
 

---

H₂O :
Three spectral regions have been re-investigated. In the 500 to 2,850 cm^-1 region, the line parameters were replaced with a compilation of 10,755 water transitions obtained by Toth (1998, 1999, 2000) and Toth et al. (1998). In the 9,650-11,400 cm^-1 region, the update comes from of empirical line parameters of H₂¹⁶O obtained by Brown et al. (2002). In the 13,000-26,000 cm^-1 region the new line parameters are from Carleer et al. (1999), Coheur et al. (2002) and Fally et al. (2003).
In the 10 μm region, alternative line parameters, from Stewart (2003), have been issued has a support study for IASI, and archived in GEISA 2003 as an alternative line list for H2O.
 
  CO₂ :
The previous line parameters of the transitions belonging to the four most abundant isotopomers ¹²C¹⁶O₂, ¹³C¹⁶O₂, ¹⁶O¹²C¹⁸O and ¹⁶O¹²C¹⁷O in the 442-2,797 cm^-1 spectral region, have been replaced with 48,627 new ones covering the 436-2,826 cm^-1 spectral range, issued of the results described in Tashkun et al. (1998, 2001) and Teffo et al. (2002, 2003).
 
  O₃ :
Updates occur in four spectral regions: In the 600-1,232 cm^-1 spectral region, new and more accurate line parameters for the ν1 and ν3 bands of ¹⁶O₃ were derived by Wagner et al. (2002) and Flaud et al. (2003). A complete new study of the 1,300-1,500 cm^-1 spectral range, related with the 2ν₂, 3ν₂-ν₂, ν₁ +ν₃ +ν ₃ -ν ₂ and 2ν ₃ -ν ₂ bands of ¹⁶O₃, has been made by Barbe et al. (1998). The 1,820-2,260 cm^-1 (2ν₃, ν₁ +ν₃ and 2 ν₁ +ν₃ interactive bands of ¹⁶O¹⁸O¹⁶O) and the 2,600-2,900 cm^-1 (triad: ν₂+2ν₃, ν₁+ν₂+ν₃ with 2ν₁+ν₂) regions, have been reinvestigated by De Backer-Barilly et al. (2003) and by Mikhaïlenko et al. (2002), respectively.
 
  N₂O :
279 lines in the spectral region 870-1,240 cm^-1, recently revisited by Daumont et al. (2002), have been substituted in two bands, ν₃-ν₁ and ν₃-2ν₂, the intensities of which were doubtful. In addition, a technical update has removed 118 duplicated lines in the spectral interval 564 cm^-1 - 629 cm^-1.
 
  CH₄ and CH₃D :
The CH₄ and CH₃D contents of GEISA have been extensively updated. The spectral range has been extended from 6,184.492 cm^-1 to 9,199.2846 cm^-1, and the number of entries increased from 66,883 to 216,196 (weaker transitions of ¹²CH₄ and new bands of ¹³CH₄ and CH₃D included). Full details about the revision in the spectral interval from 0.01 to 6,184.492 cm^-1 can be found in a review paper by Brown et al. (2003). The new CH₄ near infrared data from 4,800-5,500 cm^-1 and 6,180-10,000 cm^-1 are from an empirical list obtained by Brown (2003), from a few selected FTS laboratory spectra.
 
  O₂ :
The two spectral regions, 7,664.726-8,064.311 cm^-1 and 11,483.727-15,927.806 cm^-1, have been updated thanks to new results by Goldman et al. (2003) and by Brown and Plymate (2000), respectively.
 
  NO :
A new line list has been produced (Goldman 2003) in the first overtone region of the main isotopic species ¹⁴N¹⁶O, i.e. between 3,547.318 and 3,799.155 cm^-1. This calculation has been issued from experimental data from Mandin et al. (1997,1998) and theoretical results from Gillis and Goldman (1982).
 
  NO₂ :
A new linelist was set up in the spectral region of the ν₁+ν₃, ν₁+2ν₂ and ν₁+ν₂+ν₃-ν₂ bands of the ¹⁴N¹⁶O₂ main isotopic species. New line parameters come from the works of Mandin et al. (1997), Dana et al. (1997), Devi et al. (1982), May and Webster (1990).
 
  NH₃ :
The line parameters of the interval 0.058-5,294.502 cm^-1 have been totally replaced by those issued by Kleiner and Brown (2003) and described in Kleiner et al. (2003).
 
  PH₃ :
New data from Brown and Kleiner (2003), described in Kleiner et al. (2003), have replaced the whole content of the region from 770.877 to 2,478.765 cm^-1.
 
  OH :
Line parameters in the ultraviolet region from 29,808.500 to 35,877.030 cm^-1 , from Gillis et al. (2001) have been added to the GEISA archive.
 
  HBr :
New line parameters of H⁷⁹Br and H⁸¹Br, for the spectral regions of the pure rotation band X¹Σ⁺ (0-0) (16.692-396.474 cm^-1) and of the fundamental band (1-0) (2,123.812-2,790.533 cm^-1), have been derived for spectroscopic databases update, as described in Goldman et al. (2003).
 
  HI :
The description of the updates in the spectral regions of the X¹Σ⁺ (0-0) (12.842-319.820 cm^-1) and of the (0-1) (1,950.689-2,403.162 cm^-1) bands, is given in Goldman et al. (2003).
 
  C₂H₆ :
In the spectral region 2,975.331-2,977.926 cm^-1, a modified list by Rinsland et al. (1998), for the ^pQ₃ sub-branch in the ν₇ band, has replaced the previously archived line parameters.
 
  C₂H₂ :
The updates of the database has concerned three spectral regions: the 13.6- and 5-μm regions, from work performed by Mandin et al. (2000), Jacquemart et al. (2001, 2002), and the 7.5 -μm region, from results by Vander Auwera (2000).
 
  HOCl :
A new line list has been created in the spectral interval 1,178.673-1,320.332 cm^-1, corresponding to the ν₂ region, on the basis of the works of Flaud et al. (1998), Flaud (2002) and Vander Auwera et al. (2000).
 
  CH₃Cl :
In the spectral region from 1,261.562 to 1,645.899 cm^-1 , a list of 8,989 transitions of the [ν₂, ν₅, 2ν₃] -vibrational-band triad, prepared by Brown (2002) and based upon the work of Chackerian et al. (1998), has been newly archived, for CH₃³⁵Cl and CH₃³⁷Cl.
 
  COF₂ :
An update of the 1,856.730-2,001.348 cm^-1 region has been made thanks to a list generated by Brown (2001), based on an unpublished analysis of the line positions.
 
  HO₂ :
Spectroscopic parameters for the ground state have replaced by those generated upon the basis of the work of Chance (1997, 2003)).

REFERENCES