Simultaneous measurement of UV radiation received by the biosphere and total ozone amount
Simultaneous measurement of UV radiation received by the biosphere and total ozone amount
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同时测量生物圈接收的紫外线辐射量和臭氧总量
DOI：
10.1029/gl015i008p00784
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发表时间：
1988
影响因子：
5.2
通讯作者：
P. Østensen
中科院分区：
文献类型：
--
作者：
K. Stamnes;K. Henriksen;P. Østensen
我们用双单色仪对太阳紫外线辐照度进行了地面测量。测量结果以绝对单位校准，用于评估地面接收到的紫外线辐射的时间和光谱变化。通过拟合计算得到的紫外辐照度和观测值，得到了大气臭氧的柱密度，并与附近的多布森光谱仪得到的臭氧量基本一致。因此，我们证明了确定大气臭氧丰度和紫外线光谱辐照度同时与紫外线敏感分光计，从而提供平流层臭氧含量和紫外线辐射在地面接收之间的缺失环节的可行性。鉴于目前人们对臭氧层的潜在消耗和到达生物圈的紫外线辐射的相关增加表示关切，我们建议今后使用这一程序来监测大气臭氧量与通过大气层传播的紫外线辐射之间的关系。我们还建议，紫外线测量和适当的辐射传输模型相结合，用于评估其他环境参数，如云，气溶胶，和地面辐射对透射的紫外线辐照度的影响，并估计渗透到海洋中的紫外线辐射量。
We have made ground-based measurements of solar ultraviolet (UV) irradiance with a double monochromator. The measurements are calibrated in absolute units and used to evaluate the temporal and spectral variation of the UV radiation received at the ground. We derive the column density of atmospheric ozone by fitting calculated UV irradiances to the measurements, and show that it is in basic agreement with the ozone amount inferred by a nearby Dobson spectrometer. We have thus demonstrated the feasibility of determining atmospheric ozone abundances and spectral ultraviolet irradiances simultaneously with a UV sensitive spectrometer and thereby providing the missing link between stratospheric ozone content and UV radiation received at the ground. In view of the present concerns about potential ozone depletions and related increases in UV radiation reaching the biosphere, we suggest that this procedure be used in the future to monitor the relation between atmospheric ozone amounts and UV radiation transmitted through the atmosphere. We also suggest that a combination of UV measurements and appropriate radiative transfer modeling be used to assess the effects of other environmental parameters such as clouds, aerosols, and ground albedo on the transmitted UV irradiance and to estimate the amount of UV radiation penetrating into the ocean.