GasStar		Доклады семинара		Methane in the atmosphere over Russia

Methane in the atmosphere over Russia: TROICA experiments

WORKSHOP

Modern Technologies of Detection and Elimination of Methane Leakages from Natural Gas Systems

September 14-16, 2005

Tomsk, Russia

Methane in the atmosphere over Russia: TROICA experiments

Nicolai F. Elansky

Obukhov Institute of Atmospheric Physics Russian Academy of Sciences, Moscow

e-mail: n.f.elansky@mail.ru

Main goals of  TRanscontinental Observations Into the Chemistry of the Atmosphere (TROICA) project

• Observations of atmospheric chemical composition over continent
• Estimation of natural and anthropogenic emissions of atmospheric constituents
• Investigations of air quality in different cities and industrial regions
• Detection of extreme ecological situations

Transcontinental   Observations Into the Chemistry of  the Atmosphere Using Mobile Observatory

The scheme of railway routes

СH4 monthly mean data  

TRansportable Observatory for Investigations and Control of the Atmosphere (TROICA)

Carriage #1: Observatory

Carriage #2: Chemical laboratory

Measurements (TROICA-8)

Surface gases: O3, NO, NO2, CO, CO2, SO2, CH4, THC
Surface aerosols: size distribution (2 nm-10 mkm), scattering coefficient,
mass concentrations; black carbon
Remote sensing: CO (total content) ,
O3 (total content and vertical profiles (optical: 0-45 and microwave: 20-65 km)),
NO2 (total content , vertical profiles (0-45 km), slant abundance at 9 angles from each sides)
Solar radiation: integral, UV-A, UV-B, photodissociation rate J(NO2)  
Meteorology: pressure, temperature, humidity, wind (speed and direction), temperature profile (0-600 m)
Sampling: green-house gases and VOC; chemical, elements and morphological composition of aerosol, isotope composition of CO,CO2,CH4(13C,14C,18O, D),
Others: navigation papameters (GPS), 222Rn, radionuclides, TV pictures of surrounding (both sides), TV pictures of cloudiness, samples of warter, soil, vegetation

Изменение NO в окрестностях Тюмени в экспедиции TROICA-7

Surface CO2 and CH4 concentrations in TROICA-5
June 25-July 2, 1999 (movement to East, 10 km averaged)

Initial observation data obtained during summer expedition TROICA-7.
(averaging 0.1 deg. longitude)

Spatial distribution of CO, CO2 and CH4 concentrations
between Moscow and Khabarovsk

Initial 222Rn concentration data obtained during TROICA-5 and 8 expeditions (averaging 1 deg. longitude)

Estimated CH4 soil fluxes after 222Rn and CH4 concentration measurements at Transsiberian highway expeditions

CH4 and other gases plum from Novosibirsk (30.03.2004)

Increase of of methane and VOC concentration at crossing the main gas pipelines

Peaks of CH4 concentration near the gas pipeline Omsk-Novosibirsk (21.03.2004)

Changes of gases concentrations in the place of crossing main pipelines (Tumen region 30.03.2004)

Changes of gas concentrations near Anjerskaya town (active coil mines 29.03.2004)

Increasing of NMHC concentrations after opposite train with oil products

Example of methane and other gases concentrations variations at the moment of opposite freight train passing (27.03.2004)

Stable isotopes 13C and D content versus inverse CH4 concentrations in air samples taken at the route Khabarovsk-Moscow (TROICA-2)

13C versus the CH4 concentration for measurements during TROICA 5 from the train and boat (open diamonds) and TROICA 7 (solid circles).

Plot of the CH4 concentrations against the local time and latitude observed along the Ob river in West Siberia, July 1999 (solid circles mark discrete air sample analyses from the aluminium canisters).

(a) 13C versus inverse CH4 mixing ratio for TROICA 5; (b) D versus inverse CH4 mixing ratio for TROICA 5, error bars in (a) and (b) overlap symbols and are not shown; (c) 13C versus inverse CH4 mixing ratio for TROICA 7.

WORKSHOP Modern Technologies of Detection and Elimination of Methane Leakages from Natural Gas Systems

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