Field experiment on studying solar radiation passing through aerosol layers

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The paper describes the results of the field experiment on studying solar radiation transmission in the visible wavelength range through model aerosol media formed in the lower troposphere with the help of generators installed aboard helicopters. The refractive index and the average size of the aerosol particles formed are close to those characteristic of the natural stratospheric aerosol. The composition of the equipment complex used to control aerosol optical and microphysical aerosol parameters is considered. The measurement results are in satisfactory agreement with the results of theoretical and experimental studies in simulation chambers.

Section: Field Experiments Resultssupporting

confidence: 79%

Section: Equipment and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Field studies of a geo-engineering method of maintaining a modern climate with aerosol particles

Izraél

Захаров

Петров

et al. 2009

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“…The present experiment was carried out within the frameworks of investigations concerning the search of ways of the impact on the solar insolation intensity with regard to the problem of maintaining the climate at the present-day level by means of creating the artificial aerosol formations with the specified optical properties [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A field experiment on modeling the impact of aerosol layers on the variability of solar insolation and meteorological characteristics of the surface layer

Izraél

Захаров

Иванов³

et al. 2011

Self Cite

Described are the results of a field experiment carried out in 2010 on studying the impact of artificial aerosol formations on the solar insolation intensity and thermal characteristics of the atmospheric surface layer. The composition of the measuring equipment complex is given and the results of the experiment and its theoretical analysis are presented. It is demonstrated that the solar radiation flux decrease results in rather rapid response of the surface air layer manifesting itself in the considerable decrease in temperature and turbulent heat fluxes. The theoretical estimates corroborate the obtained experimental data. The field experiment is the continuation of researches carried out in 2008 and 2009.

“…The field experiments (of the local scale so far) under the guise of geoengineering have been recently carried out in Russia to study "solar radiation passing in the visible range with a model aerosol media created in the surface atmospheric layer" [1]. As a result of this, "it is shown how it is principally possible to control solar radiation passing through artificially created aerosol formations in the atmosphere with different optical thickness."…”

mentioning

confidence: 98%

An answer to the paper of A. G. Ryaboshapko “On the taboo on researching in the field of global climate geoengineering”

Meleshko

Kattsov

Karol

2011

4], let us first of all specify its topic. A term "geoengineering" which came to us from the English-language literature embraces a wide range of various techniques of climate warming prevention. In order to preclude a potential confusion, in the report [7], for example, it is proposed to divide all kinds of climate regulation into two classes: techniques directed at the direct removal of CO 2 from the atmosphere and techniques of the solar radiation control for the purpose of decreasing its absorption by the Earth's surface. Recent investigations demonstrated that the use of technique of the second class is able to bring a large-scale damage to the environment and economic development of certain regions of the globe. These are the deliberate aerosol scattering in the stratosphere to control the solar radiation coming to the Earth's surface and problems associated with this technique were discussed in our paper. Thus, the author of [5] substitutes the discussion of stratospheric aerosol scattering by the discussion of the great variety of techniques embraced usually by the general term "geoengineering" which we did not deal with. By the way, the authors avoided this term in [4] concentrating on the concrete technique.Ryaboshapko asserts, "the authors' position against this background seems to be an appeal to taboo the research in this field (at least, in Russia)" [5]. It would be strange to talk about the taboo on researching carried out by the authors themselves (for example, see [3,6]). It should be noted that the study of environmental response to the deliberate interference can be carried out within the frameworks of two considerably differing approaches. The first approach deals with the investigations based on the model computations using the physical and mathematical climatic models. Such researches are carried out in a number of the Russian scientific organizations (including our institute) and abroad. Physical and mathematical modeling enables to estimate the consequences of the climate control without the risk of bringing any damage to the environment.The second approach consists in carrying out the field experiments within the frameworks of which a direct interference with the environment (atmosphere) of the regional and global scales takes place. In [4], one of the well-known experiments of such kind is mentioned [1]: "…in Russia, field experiments on aerosol scattering are started. In this connection, a question arises how significant can be the results obtained in the local and regional field experiments for climate generalizations of a global scale, and, first and foremost, for estimates of consequences of interference with climate and biosphere. The scientific value of such 566