Data for: Abundance Measurements of Titan’s Stratospheric HCN, HC3N, C3H4, and CH3CN from ALMA Observations

Data files each contain a single abundance profile of HC3N, C3H4, CH3CN, or one of the two HCN isotopes: HC15N or H13CN; the latter two profiles have not been scaled by an isotope ratio value to represent HCN, as in the manuscript. Each file corresponds to either disk-averaged (_da) results, or spatially resolved profiles from North (48 N), Center (21 N), or South (16 S) retrievals (_n, _c, and _s, respectively). Abundance profiles cover the approximate altitudes where ALMA sensitivity allows for accurate retrievals: 50-550 km for HC3N, C3H4, and HCN isotopes, and 150-550 km for CH3CN. File column format is as follows: altitude (km), pressure (mbar), abundance.

每个数据文件均包含单一物种的丰度廓线，对应物种为氰基乙炔（HC3N）、丙炔（C3H4）、乙腈（CH3CN），或是两种氰化氢（HCN）同位素分子：HC15N与H13CN。后两种同位素廓线并未如稿件所述，通过同位素比值换算为HCN的丰度廓线。每个文件对应两类结果之一：一是盘面平均（_da）结果，二是来自北天区（48 N）、天区中心（21 N）与南天区（16 S）反演得到的空间分辨廓线（分别以后缀_n、_c、_s标识）。丰度廓线的覆盖高度满足阿塔卡马大型毫米/亚毫米波阵列（Atacama Large Millimeter/submillimeter Array，ALMA）的精确反演灵敏度要求：氰基乙炔、丙炔与氰化氢同位素的覆盖高度约为50~550 km，乙腈的覆盖高度则为150~550 km。文件列格式依次为：高度（单位：km）、压强（单位：mbar）、丰度。