NASA HIRDLS and ESA MIPAS data product comparison (and other ground data)

NASA HIRDLS and ESA MIPAS data product comparison (and other ground data)
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NASA HIRDLS 和 ESA MIPAS 数据产品比较(以及其他地面数据)

DOI:
10.1117/12.800712
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发表时间:
2008
期刊:
--
影响因子:
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通讯作者:
Hepplewhite C
Hepplewhite C
中科院分区:
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文献类型:
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作者:
Hepplewhite C

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HIRDLS仪器是美国航天局太阳同步近地轨道Aura航天器上的临边观测红外辐射计,每天获得覆盖整个地球的大气层组成的测量数据。MIPAS仪器是欧洲环境卫星上的临边观测红外线干涉仪,其轨道与Aura非常相似,只是当地的太阳时不同。这两种仪器的地球物理数据产品的补充非常相似,并且由于类似的观测策略,它们的两个数据集可以进行有益的比较。比较提供了支持验证的方法,以获得系统差异和方差等统计数据。这是在HIRDLS的整个纬度范围和MIPAS的高度范围内进行的,从而有助于确定误差来源。识别已知的大气特征是一种有用的诊断方法,包括示踪气体上涌区域或中纬度波相干结构的传播等,我们可以测试这些结构在两个数据集中是否一致。HIRDLS版本2.04.19(v004)的温度,臭氧和硝酸显示非常低的系统“误差”相比,MIPAS在大部分的空间范围。目前预先释放的水蒸气、一氧化二氮和F-11相当相似,甲烷的限制更大一些,二氧化氮、N2 O 5、硝酸氯和F-12还容易受到望远镜受阻的影响。文件中讨论了进一步的细节。
The HIRDLS instrument is a limb viewing infra-red radiometer on the NASA Aura spacecraft in a sun synchronous low earth orbit and obtains measurements of the composition of the atmosphere covering the whole Earth each day. The MIPAS instrument is a limb viewing infra-red interferometer on board the European Envisat satellite in a very similar orbit to Aura except that the local solar time is different. The complement of geophysical data products of both instruments is very similar, and because of similar observation strategies their two data sets can be usefully compared. The comparison provides the means to support validation in order to obtain statistics such as systematic differences and variance. This is performed over the full latitude range of HIRDLS and height range of MIPAS and thereby helps to identify sources of errors. The identification of known atmospheric features is a useful diagnostic, and includes such things as regions of upwelling of tracer gases, or the propagation of coherent structures as with mid-latitude waves and we can test whether these structures are consistently represented in both data sets. HIRDLS version 2.04.19 (v004) temperature, ozone and nitric acid show very low systematic 'errors' compared to MIPAS over most of the spatial range. Currently pre-released water vapour, nitrous oxide and F-11 are reasonably similar, CH4 somewhat more restricted, and nitrogen dioxide, N2O5, chlorine nitrate and F-12 as yet susceptible to complications from the obstructed telescope. Further details are discussed in the paper.
HIRDLS 和 COSMIC 射电掩星反演的交叉验证,特别是与精细垂直结构相关的
DOI: 10.1117/12.800702
发表时间: 2008
期刊: --
影响因子: --
作者:
Barnett J
通讯作者: Barnett J
用于地球观测系统的高分辨率动态临肢探测器 (HIRDLS)
DOI: --
发表时间: 1994
期刊: Optics & Photonics
影响因子: --
作者:
J. Gille;J. Barnett;W. Mankin;Brian R. Johnson;M. Dials;J. Whitney;D. Woodard;P. Arter;Wayne P. Rudolph
通讯作者: Wayne P. Rudolph