TROPOMI Satellite Data Reshape NO 2 Air Pollution Land-Use Regression Modeling Capabilities in the United States
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Dynamic response characteristics of time-varying linear systems
Determining the dynamic response characteristics of time-varying linear systems
Accurate periods of periodic events observed at irregular intervals of time
Urban employment multipliers and their application to aerospace industry
Orbit calculation program modified to provide corrected state vectors for lunar potential constants in moon centered coordinate system
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A technique is described whose application makes it possible to almost double the altitude range over which useful temperature profiles may be obtained. For a wide range of atmospheric temperature profiles, the temperature structure between 30 and 55 km may be derived with an expected error of less than 3 C at 30 km to less than 10 C at 55 km, given the temperature structure in the lower 30 km of the profile, and given a consistent and accurate set of radiance observations. For strongly anomalous conditions in the stratosphere, the accuracy of retrievals at tropospheric levels may also be substantially improved.
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Monte Carlo studies using population models intended to represent response surface applications are reported. Simulated experiments were generated by adding pseudo random normally distributed errors to population values to generate observations. Model equations were fitted to the observations and the decision procedure was used to delete terms. Comparison of values predicted by the reduced models with the true population values enabled the identification of deletion strategies that are approximately optimal for minimizing prediction errors.