SPARC Data Initiative monthly zonal mean composition measurements from stratospheric limb sounders (1978-2018)

The SPARC Data Initiative dataset is the most comprehensive compilation of vertically resolved stratospheric composition measurements to date and consists of four decades of monthly zonal mean climatologies (1978-2018) from a range of satellite limb sounders including LIMS, SAGE I/II/III, HALOE, UARS-MLS, POAMII/III, OSIRIS, SMR, MIPAS, GOMOS, SCIAMACHY, ACE-FTS, ACE-MAESTRO, Aura-MLS, HIRDLS, SMILES, OMPS-LP and SAGE III-ISS. The dataset includes most major long-lived trace gases (O₃, H₂O, N₂O, CH₄, CCl₃F, and CCl₂F₂), transport tracers (HF, SF₆, HCl, CO, HNO₃, NOy), and shorter-lived trace gases important to stratospheric chemistry including nitrogens (NO, NO₂, NOx, N₂O₅,and HNO₄), halogens (BrO, ClO, ClONO₂ and HOCl), and other minor species (OH, HO₂, CH₂O, CH₃CN). The observations considered have been compiled in units of volume mixing ratio (VMR) and on a common latitude-pressure grid, covering the region from the upper troposphere to the lower mesosphere (300-0.1 hPa) with a latitudinal resolution of 5 degrees.SPARC数据倡议数据集（SPARC Data Initiative dataset）是迄今为止最全面的垂直分辨率平流层成分测量数据集，涵盖1978年至2018年四十年间的逐月纬向平均气候态数据。其数据来源包括多款卫星临边探测仪（satellite limb sounders），具体为LIMS、SAGE I/II/III、HALOE、UARS-MLS、POAMII/III、OSIRIS、SMR、MIPAS、GOMOS、SCIAMACHY、ACE-FTS、ACE-MAESTRO、Aura-MLS、HIRDLS、SMILES、OMPS-LP以及SAGE III-ISS。该数据集包含绝大多数主要的长寿命痕量气体：臭氧O₃、水汽H₂O、一氧化二氮N₂O、甲烷CH₄、三氯一氟甲烷CCl₃F与二氯二氟甲烷CCl₂F₂；传输示踪剂：氟化氢HF、六氟化硫SF₆、氯化氢HCl、一氧化碳CO、硝酸HNO₃以及总氮氧化物NOy；以及对平流层化学过程至关重要的短寿命痕量气体，包括含氮物种（一氧化氮NO、二氧化氮NO₂、氮氧化物NOx、五氧化二氮N₂O₅与过硝酸HNO₄）、含卤素物种（一氧化溴BrO、一氧化氯ClO、硝酸氯ClONO₂与次氯酸HOCl），以及其他微量物种（羟基OH、过氧羟基HO₂、甲醛CH₂O、乙腈CH₃CN）。所纳入的观测数据均以体积混合比（volume mixing ratio, VMR）为单位进行整编，并统一采用纬度-气压网格，覆盖范围从对流层上层至中层下层（300~0.1百帕），纬度分辨率为5度。