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Global nighttime atomic oxygen abundances from GOMOS hydroxyl airglow measurements in the mesopause region

机译:来自Mesopause Region的Gomos羟基泡泡测量的全球夜间原子氧气丰富

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This paper presents a new dataset of nighttime atomic oxygen density [O], derived from OH(8–4) ro-vibrational band emissions, using a non-local thermal equilibrium model, with the aim of offering new insight into the atomic oxygen abundances in the mesopause region. The dataset is derived from the level-1 atmospheric background measurements observed by the Global Ozone Monitoring by Occultation of Stars (GOMOS) instrument aboard Envisat, with the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) measurements for the atmospheric background. Raw data are reprocessed into monthly zonal mean values in 10° latitude bins with a fixed altitude grid of 3 km. The dataset spans from 70° S to 70° N in latitude and from 80 to 100 km in altitude, covering a time period from May 2002 to December 2011 at local times from 22:00 to 00:00 LT. The atomic oxygen density peaks at about 95 km and the highest values are in the range of 3–8 × 1011 atoms cm?3, depending on latitude and season. There is a rapid decrease of [O] below the peak. The annual oscillation (AO), semiannual oscillation (SAO) and the solar cycle impact are distinguished from the [O] longtime series variations. This new GOMOS [O] dataset conforms to other published datasets and is consistent with the [O] datasets obtained from the Scanning Imaging Absorption Spectrometer for Atmospheric CHartographY (SCIAMACHY) OH airglow measurements within about ±20 %.
机译:本文介绍了使用非局部热平衡模型的OH(8-4)RO-Viblation BAND排放的夜间原子氧密度[O]的新数据集,目的是向原子氧丰富提供新的洞察力在中索地区。数据集来自通过恒星(Gomos)仪器的全球臭氧监测观察到的Level-1大气背景测量值,该仪器上载于Envisat,在大气背景下使用宽带发射辐射辐射测量(Saber)测量来探讨大气的声音。原始数据在10°纬度箱中重新加入到每月的纬度平均值,固定高度电网3公里。 DataSet跨度从70°S到70°N的海拔高度,从80到100公里处,从2002年5月到2011年12月,从22:00到00:00的时间段。根据纬度和季节,原子氧密度峰值在约95km处,最高值达到3-8×1011原子厘米厘米厘米厘米厘米厘米厘米厘米厘米厘米。峰值下方的[O]迅速减少。年振荡(AO),半谐波(SAO)和太阳循环的影响与[O]长时间序列变化区别出现。这个新的gomos [o]数据集符合其他公布的数据集,并且与从扫描成像吸收光谱仪获得的[o]数据集一致,用于大气图(Sciamachy)OH防空测量范围内约±20%。

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