Line parameter database H2O self-broadened 700-2000 cm-1

<p><strong>DLR line parameter database for self-broadened H₂O in the 700 &ndash; 2000 cm^-1 region.</strong></p> <p>New self-broadened H₂O measurements and analysis were performed with the aim of determining the H₂O self-continuum. Zenodo serves as a repository for the line parameter database.</p> <p>Measurements in the spectral range of 700 &ndash; 2000 cm⁻&sup1; were conducted using a Bruker 125HR Interferometer with an attached multi-reflection cell. The spectral resolution was 0.003 cm⁻&sup1;. Measurements were corrected regarding the wavenumber axis (&rarr; N₂O reference lines [1]), detector non-linearity, thermal self-radiation, and the instrumental line profile function (&rarr; LINEFIT [2]). For the preparation of the parameter database, measurements were analyzed using pure H₂O pressures between 0.003 &ndash; 20 mbar, path lengths between 14 &ndash; 161 m, and temperatures of 294.2 K and 353.2 K. The line profile function of a quadratic speed-dependent Voigt which was extended for Rosenkranz line mixing was used. The following line parameters were determined for the four most abundant H₂O isotopologues H₂¹⁶O (main isotopologue), H₂¹⁸O, H₂¹⁷O, HD¹⁶O:</p> <table> <tbody> <tr> <td>Line position</td> <td>_&nu;0</td> </tr> <tr> <td>Line intensity</td> <td>S</td> </tr> <tr> <td>Pressure self-broadening parameter</td> <td>_{&gamma;0,self}</td> </tr> <tr> <td>Speed-dependence parameter of pressure self-broadening</td> <td>_{&gamma;2,self}</td> </tr> <tr> <td>Temperature exponent of pressure self-broadening</td> <td>n_self</td> </tr> <tr> <td>Pressure self-shift parameter</td> <td>_{&delta;0,self}</td> </tr> <tr> <td>Temperature dependence of pressure self-shift</td> <td>_{&delta;<strong>^T</strong>0,self}</td> </tr> <tr> <td>First order Rosenkranz self-line-mixing parameter @ 296 K</td> <td>Y_self</td> </tr> <tr> <td>Temperature dependence of first order Rosenkranz self-line-mixing</td> <td>Y^T1_self</td> </tr> </tbody> </table> <p>&nbsp;</p> <p>&nbsp;</p> <p><strong>Provided files:</strong></p> <p>&nbsp;</p> <p>Readme for database and provided files:</p> <p><strong>DLR_Database_Pure_H2O_700-2000_cm-1- Readme.docx</strong></p> <p>Detailed, commented version:</p> <p><strong>DLR_Database_Pure_H2O_700-2000_cm-1.xlsx</strong></p> <p>Version in extended HITRAN format:</p> <p><strong>DLR_Database_Pure_H2O_700-2000_cm-1.hit</strong></p> <p>List of occurring HITRAN references:</p> <p><strong>DLR_Database_Pure_H2O_700-2000_cm-1_HITRAN_references.html</strong></p>