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DOI | https://doi.org/10.1594/PANGAEA.847307 |
Aircraft and satellite derived arctic BrO profiles of the tropospheric column | |
Choi; Su-Jin; Wang; Y; Salawitch; Ross J; Canty; T; Joiner; J; Zeng; T; Kurosu; T P; Chance; K; Richter; Astrid; Huey; L G; Liao; J; Neuman; J A; Nowak; J B; Dibb; J E; Weinheimer; A J; Diskin; G S; Ryerson; T B; da Silva; A; Curry; J; Kinnison; D; Tilmes; S; Levelt; P F | |
发布日期 | 2012-06-19 |
数据集类型 | dataset |
英文简介 | We derive tropospheric column BrO during the ARCTAS and ARCPAC field campaigns in spring 2008 using retrievals of total column BrO from the satellite UV nadir sensors OMI and GOME-2 using a radiative transfer model and stratospheric column BrO from a photochemical simulation. We conduct a comprehensive comparison of satellite-derived tropospheric BrO column to aircraft in-situ observations of BrO and related species. The aircraft profiles reveal that tropospheric BrO, when present during April 2008, was distributed over a broad range of altitudes rather than being confined to the planetary boundary layer (PBL). Perturbations to the total column resulting from tropospheric BrO are the same magnitude as perturbations due to longitudinal variations in the stratospheric component, so proper accounting of the stratospheric signal is essential for accurate determination of satellite-derived tropospheric BrO. We find reasonably good agreement between satellite-derived tropospheric BrO and columns found using aircraft in-situ BrO profiles, particularly when satellite radiances were obtained over bright surfaces (albedo >0.7), for solar zenith angle <80° and clear sky conditions. The rapid activation of BrO due to surface processes (the bromine explosion) is apparent in both the OMI and GOME-2 based tropospheric columns. The wide orbital swath of OMI allows examination of the evolution of tropospheric BrO on about hourly time intervals near the pole. Low surface pressure, strong wind, and high PBL height are associated with an observed BrO activation event, supporting the notion of bromine activation by high winds over snow. |
空间范围 | Median Latitude: 71.441228 * Median Longitude: -152.099030 * South-bound Latitude: 64.800000 * West-bound Longitude: -165.500000 * North-bound Latitude: 87.200000 * East-bound Longitude: -127.300000 |
时间范围 | 2008-04-12T00:00:00 - 2008-04-21T00:00:00 |
语种 | 英语 |
国家 | 国际 |
学科大类 | 气候变化 |
学科子类 | 气候变化 |
文献类型 | 数据集 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/226916 |
推荐引用方式 GB/T 7714 | Choi,Su-Jin,Wang,et al. Aircraft and satellite derived arctic BrO profiles of the tropospheric column.2012-06-19.https://doi.org/10.1594/PANGAEA.847307. |
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