Response properties of atmospheric turbulence measurement instruments using Russian research aircraft

2004 ◽  
Vol 18 (16) ◽  
pp. 3099-3117 ◽  
Author(s):  
M. A. Strunin ◽  
T. Hiyama
Keyword(s):  
Atmospheric Turbulence ◽  
Measurement Instruments ◽  
Turbulence Measurement ◽  
Response Properties ◽  
Research Aircraft ◽  
Russian Research

Atmospheric Turbulence Measurement System

1985 ◽  
Author(s):  
R. W. McMillan ◽  
R. A. Bohlander ◽  
R. H. Platt ◽  
D. M. Guillory ◽  
J. T. Priestley ◽  
...  
Keyword(s):  
Atmospheric Turbulence ◽  
Measurement System ◽  
Turbulence Measurement

In Situ Atmospheric Turbulence Measurement Using the Terrestrial Magnetic Field—A Compass for a Radiosonde

2006 ◽  
Vol 23 (3) ◽  
pp. 517-523 ◽  
Author(s):  
R. Giles Harrison ◽  
Robin J. Hogan
Keyword(s):  
Magnetic Field ◽  
Atmospheric Turbulence ◽  
Time Scale ◽  
Magnetic Field Measurement ◽  
Magnetic Fluctuations ◽  
Turbulence Measurement ◽  
Radar Measurements ◽  
In Situ Detection ◽  
Terrestrial Magnetic Field

Abstract A method for in situ detection of atmospheric turbulence has been developed using an inexpensive sensor carried within a conventional meteorological radiosonde. The sensor—a Hall effect magnetometer—was used to monitor the terrestrial magnetic field. Rapid time scale (10 s or less) fluctuations in the magnetic field measurement were related to the motion of the radiosonde, which was strongly influenced by atmospheric turbulence. Comparison with cloud radar measurements showed turbulence in regions where rapid time-scale magnetic fluctuations occurred. Reliable measurements were obtained between the surface and the stratosphere.

scholarly journals CRISTA-NF measurements during the AMMA-SCOUT-O3 aircraft campaign

2010 ◽  
Vol 3 (5) ◽  
pp. 1437-1455 ◽  
Author(s):  
K. Weigel ◽  
M. Riese ◽  
L. Hoffmann ◽  
S. Hoefer ◽  
C. Kalicinsky ◽  
...  
Keyword(s):  
Infrared Region ◽  
In Situ Measurements ◽  
Temperature Fields ◽  
Research Aircraft ◽  
High Vertical Resolution ◽  
Horizontal Variations ◽  
Temperature Water ◽  
Better Than ◽  
Russian Research

Abstract. The Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere – New Frontiers (CRISTA-NF) instrument participated in the AMMA-SCOUT-O3 measurement campaign in July and August 2006. The instrument is mounted on the high-flying Russian research aircraft M55-Geophysica and measures limb-emissions in the mid-infrared region in the tangent altitude range of about 6 to 21 km. We present a new retrieval setup which is based on 9 integrated spectral windows allowing to retrieve an extended set of trace gases and temperature fields with high vertical resolution (up to 500 m). Retrieval results are shown for temperature, water vapor (H2O), ozone (O3), nitric acid (HNO3), peroxyacetyl nitrate (PAN), carbon tetrachloride (CCl4), and aerosol extinction. Comparisons of temperature, O3, and H2O observations with corresponding in situ measurements on-board M55-Geophysica show reasonable agreement. In particular, CRISTA-NF observations in the vicinity of the aircraft resemble horizontal variations found in the in situ measurements better than corresponding ECMWF fields.

scholarly journals Retrieving atmospheric turbulence information from regular commercial aircraft using Mode-S and ADS-B

2016 ◽  
Vol 9 (5) ◽  
pp. 2253-2265 ◽  
Author(s):  
Jacek M. Kopeć ◽  
Kamil Kwiatkowski ◽  
Siebren de Haan ◽  
Szymon P. Malinowski
Keyword(s):  
Atmospheric Turbulence ◽  
Turbulence Intensity ◽  
Dissipation Rate ◽  
Vertical Acceleration ◽  
Background Wind ◽  
Commercial Aircraft ◽  
Data Set ◽  
Processing Methods ◽  
Research Aircraft

Abstract. Navigational information broadcast by commercial aircraft in the form of Mode-S EHS (Mode-S Enhanced Surveillance) and ADS-B (Automatic Dependent Surveillance–Broadcast) messages can be considered a new source of upper tropospheric and lower stratospheric turbulence estimates. A set of three processing methods is proposed and analysed using a quality record of turbulence encounters made by a research aircraft.The proposed methods are based on processing the vertical acceleration or the background wind into the eddy dissipation rate. Turbulence intensity can be estimated using the standard content of the Mode-S EHS/ADS-B.The results are based on a Mode-S EHS/ADS-B data set generated synthetically based on the transmissions from the research aircraft. This data set was validated using the overlapping record of the Mode-S EHS/ADS-B received from the same research aircraft. The turbulence intensity, meaning the eddy dissipation rate, obtained from the proposed methods based on the Mode-S EHS/ADS-B is compared with the value obtained using on-board accelerometer. The results of the comparison indicate the potential of the methods. The advantages and limitation of the presented approaches are discussed.

Lidar system for atmospheric turbulence measurement with Mersen telescope

2006 ◽  
Author(s):  
A. V. Savin ◽  
S. Yu. Strakhov ◽  
M. A. Konyaev ◽  
A. V. Trilis
Keyword(s):  
Atmospheric Turbulence ◽  
Lidar System ◽  
Turbulence Measurement

Acute toxicity of an insecticidal little containing ivermectin and fipronil for white mice

2020 ◽  
pp. 31-32
Author(s):  
Mikhail A. Levchenko ◽  
◽  
Natalia A. Sennikova ◽  
Keyword(s):  
Acute Toxicity ◽  
Lethal Dose ◽  
Live Weight ◽  
Acute Oral Toxicity ◽  
Oral Toxicity ◽  
Toxicological Assessment ◽  
Russian Research Institute ◽  
Veterinary Entomology ◽  
Russian Research

Toxicological assessment is a mandatory research step in the development of new insecticidal drugs. At the All-Russian Research Institute of Veterinary Entomology and Arachnology, a prototype of the insecticidal bait Mukhnet IF was obtained with an active ingredient content of 0.06% ivermectin and 0.015% fipronil, which showed a highly effective effect against houseflies. This work presents the results of the study of acute oral toxicity of the above agent. For this, male white mice with a live weight of 16-26 g were selected. They were kept on a starvation diet for one day in individual houses with water. The drug was given in mg/kg body weight the next day. A total of 33 doses have been tested, ranging from 100 mg/kg to 40,000 mg/kg. The animals were observed for 14 days. According to the research results, it was revealed that at doses up to 20,000 mg/kg there were no signs of intoxication, but when tested at 25,000 mg/kg in some mice, these signs were noted, and at 30,000, 35,000 and 40,000 mg/kg deaths were recorded 20±10, 45±30 and 60±20%, respectively. It was not possible to test the drug over the last above dose due to incomplete eaten by mice. According to the degree of danger for warm-blooded animals, the drug belongs to the 4th class of low-hazard drugs (average lethal dose of 5000 mg/kg or more) in accordance with the classification of GOST 12.1.007-76. When analyzing the literature data on the toxicological characteristics of preparations containing ivermectin and chlorfenapyr, it was revealed that the insecticidal agent in its acute toxicity for warm-blooded animals is comparable to known analogues.

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