Research Institute for Humanity and Nature, Kyoto, Japan 3. National Institute for Environmental Studies, Tsukuba, Japan

Transcription

1 Monitoring of greenhouse and oxidizing gases in the atmosphere over Siberia and some its results M.Yu. Arshinov 1, B.D. Belan 1, D.K. Davydov 1, G. Inoue, O.A. Krasnov 1 T. Machida 3, Sh. Maksyutov 3, Ph. Nedelec, J.-D. Paris 5, Ph. Ciais 5, G.N. Tolmachev 1, A.V. Fofonov 1 1 Institute of Atmospheric Optics SB RAS, Tomsk, Russia Research Institute for Humanity and Nature, Kyoto, Japan 3 National Institute for Environmental Studies, Tsukuba, Japan Laboratoire d Aérologie UPS-CNRS Toulouse, France 5 Laboratoire des Sciences du Climat et de l'environnement, Saclay, France

2 Content 1. Introduction. Airborne observations 3. Tower Network observations

3 1. Introduction

4 Goals Monitoring of greenhouse and other trace gases over Northern Eurasia to identify the source and sink distribution in the terrestrial ecosystems and its change due to the climate variability. This project consists of three parts: ground-based monitoring, airborne observations and model analysis. Taking into account the importance of the Global Climate Change which can cause a fatal damage to the Earth System and understanding di the importance of international ti cooperation in this field we decide to combine efforts of several institutions from different countries

5 International cooperation of IAO SB RAS: Projects F-R Project YAK-AEROSIB State Contract of RF for AQ of Siberian Cities J-R Project for GHG Monitoring Large-scale airborne campaigns across Siberia to measure: CO, CO, O 3, BC, aerosols Two towers in the neighbourhood of Tomsk Mobile Station for AQ monitoring Monthly airborne measurements of GHG Tower Network for GHG monitoring

6 . Airborne observations

7 Platform Antonov-30 research aircraft Flight ceiling: 100 m Flight duration : hr Endurance: 300 km Max speed : 50 km/h Speed during measurements: 300 km/h Take-off run: 1300 m Aircraft crew: 7 pilots Scientific crew: <10 res. Aircraft length:.3 m Aircraft height:.3 m Engines: turboprop +1 turbojet

8 Instrumentation Flask sampling CO, CH, CO, N O, H Air sampler CO continuous measurements with LI-

9 Flight pattern Monthly flask sampling has been started on July 1997

10 Long Long-term variation of CO term variation of CO g )NovosibirskCO(ppm30307km~1.9 ppm/yrcppm)3km35030co(p ~1.9 ppm/yr300.5km(ppm)~1. ppm/yr coppy

11 Annual mean CO Annual mean CO profiles profiles p Novosibirsk Japan de[km] tude[km] Altitud0073Altit CO[ppm] CO[ppm]BL over Siberia is less polluted

12 Seasonal variations of CO Seasonal variations of CO Seasonal variations of CO Seasonal variations of CO Novosibirsk 00 Averaged357Jan0Feb0Mar0Apr000 Averaged37530(ppm)5tude(km)Apr0May0Jun0Jul0Aug0Sep0Oct0Nov0Dec03035CO0.5km1.5km3.0km7.0km13Alti Months CO(ppm)Strong CO sink in the lower troposphere during summer

13 Long Long-term variation of CH term variation of CH g Novosibirsk(ppb) km~1. ppb/yrchpb)10103km17010ch(pp ~1.1 ppb/yr km(ppb)no definite chtrend

14 Long Long-term variation of N term variation of N O g NovosibirskO(ppb) km~0. ppb/yrpb)no31303km3131no(pp ~0.3 ppb/yr313130(ppb)0.5km~0. ppb/yr no(ppy

15 Annual mean CH Annual mean CH and N and N O profiles O profiles Annual mean CH Annual mean CH and N and N O profiles O profilesnovosibirsk7m) altitude(km35tude(km) a13alti no(ppb) ch(ppb)w t Sib i Relatively uniform NO West Siberia is a source of CH Relatively uniform NO concentration throughout the troposphere

16 Seasonal variations of CH Seasonal variations of CH and and N O N O Novosibirsk1900.5km1.5km3.0km70k km1.5km3.0km10190H(ppb)7.0km NO(ppb)3.0km7.0km1010C N No seasonal Two maxima in LT No seasonal dependency

17 Large-scale airborne measurements: YAK-AEROSIB AEROSIB and POLARCAT

18 Flight pattern of YAK-AEROSIB AEROSIB campaigns Novosibirsk-Yakutsk

19 Golden day of POLARCAT 00

20 summary of all observations for each flight in July 00

21 3. Tower Network observations

22 Tower Network

23 Arrangement of the equipment

24 Tower Network observations: CO

25 mco(pp0037fmamjjasondaveraged seasonal behaviour of mixing ratio at six sites0395co mixing ratio at six sites 39)Largest at taiga sites3sitesj35amplitude 5Savvushka Demyanskoe Noyabrsk Igrim Karasevoe Berezorechka

26 Tower Network observations: CH GLC000,forest inventory MODIS VCF vegetation continuous fields (500m) wetland typology map Higher values are observed at northern sites wetlands

27 b)(pp h0c jfmamjjasondaveraged seasonal behaviour of CH0 mixing ratio at six sites sites100savvushka Demyanskoe Noyabrsk Igrim Karasevoe Berezorechka Summer release of CH in northern part of West Siberia

28 CH CH mixing ratio: mixing ratio: i ft d t d t i ft d t d t aircraft and tower data aircraft and tower data ch(ppb)1010ch(ppb) jfmamjjasondsavvushka Demyanskoe Noyabrsk Igrim Karasevoe BerezorechkaJFMAMJJASOND0.5km1.5km3.0km7.0kmAi b d t d t h d i il l Airborne and tower data showed similar seasonal dependence of CH mixing ratio in the LT

29 O30Cppm00(O(00CppmO(CppmO(CppmMonthly mean diurnal behaviour of CO mixing ratio January April June July October Igrim 30 ) arasevoe 30 ) Savvush ka Berezor rechka K ) )

30 Two towers in the neighbourhood of Tomsk 1

31 Specifications

32 Some measurement results

33 Summary More powerful CO sink is in moderate and southern taiga, where largest daily amplitudes of CO mixing ratio are observed Northern part of West Siberia is a natural source of CH

34 Thank you for your attention