Accuracy Enhancement of the Two-Stream Radiative Transfer Model for Computing Absorption Bands at the Presence of Aerosols-Reference-Cited by-同舟云学术

Accuracy Enhancement of the Two-Stream Radiative Transfer Model for Computing Absorption Bands at the Presence of Aerosols

Published:2021-04 Issue:02-2021 Volume: Page:79-86
ISSN:2541-9935
Container-title:Light & Engineering
language:en
Short-container-title:L&E

Author:

Águila Ana del¹,Efremenko Dmitry S.²

Affiliation:

1. National Institute for Aerospace Technology

2. German Aerospace Centre

Abstract

The two-stream model is the fastest radiative transfer model among those based on the discrete ordinate method. Although its accuracy is not high enough to be used in applications, the two-stream model gets more attention in computationally demanding tasks such as line-by-line simulations in the gaseous absorption bands. For this reason, we designed the cluster low-streams regression (CLSR) technique, in which a spectrum computed with a two-stream model, is refined by using statistical dependencies between two- and multistream radiative transfer models. In this paper, we examine the efficiency of this approach for computing Hartley-Huggins, O2 A-, water vapour and CO2 bands at the presence of aerosols. The numerical results evidence that the errors of the CLSR method is not biased and around 0.05 %, while the performance enhancement is two orders of magnitude.

Publisher

Redakcia Zhurnala Svetotekhnika LLC

Subject

General Medicine

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