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Direct Use of Satellite Sounding Radiances in Numerical Weather Prediction
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摘要: 该文叙述在数值天气预报中直接应用辐射率而不经过反演的原因，变分法在辐射率直接应用中的作用，以及介绍变分问题计算中的伴随方法。还指出ATOVS辐射率同样可以在NWP中直接应用。最后，介绍业务NWP直接应用辐射率的情况。Abstract: The paper described comprehensively that the satellite sounding radiances can be used directly in NWP, not have to be retrieved by use of profiles of temperature and humidity. The roles of variational algorithm for direct use of radiances and the calculation of the adjoint equation are presented. The direct method is very flexible and can in principle be applied to ATOVS’ radiance inversion. And, the some aspects the direct use in operational NWP are also introduced
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Key words:
- Satellite radiance;
- NWP;
- Direct use
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