PEEX – Pan Eurasian Experiment Research initiative involving European, Russian and Chinese organisations and institues Slides from Tuukka Petaja and Hanna Lappalainen

 is a multidisciplinary research / research infrastructure / education / policy making initiative resolving the major uncertainties in the Earth system science and global sustainability questions in the Arctic - boreal Pan-Eurasian region and in China Ref. PEEX Science Plan to solve interlinked global challenges influencing the human well-being and societies in the Northern Eurasia to establish and maintain long-term coordinated research activities and research & educational infrastructures to contribute to the Earth system science agenda and climate policy in topics important to the Pan- Eurasian environment to provide adaptation and mitigation strategies for the societies to cope with climate change. PEEX - GRAND CHALLENGES IN THE NORTHERN CONTEXT

SMEAR II station (boreal) Key aspects in PEEX 1)Commitment to comprehensive long-term measurements 2)Utilization of comprehensive measurements and modeling tools at ground level and from satellites 3)Methodology (model / instrument) development, feedback and interactions between communities 4)Active and open collaboration over boundaries 5)Willingness to tackle grand challenges together

The PEEX domain PEEX Infrastructure: Based on existing stations and new stations filling the gaps Construct a comphrensive and harmonized station network Required observations pertinent to the science questions.

Planned observations Vast and heterogeneous area: Continental and aquatic ecosystems Boreal forest, tundra, peatland, lake and river systems Artic maritime permafrost Urban and industrialized regions 1.Basic stations weather stations 2.Flux stations gas, material and energy fluxes atmosphere-biosphere interactions 3.Flag ship stations comprehensive stations in different environments sources and sinks for greenhouse gases, trace gases, aerosols feedback mechanisms

YAK-AEROSIB MODIS hotspots between 9 th – 18 th July 2008 YAK flight tracks (Paris et al., (2009), ACP)

PEEX INFRA: marine component  The Preliminary concept of the hierarchical Aquatic Observations in a surrounding seas would consist of SIMPLE BUOYS:  deployed on sea ice in the open sea  Atmospheric air pressure, surface temperature SOPHISTICATED BUOYS  More devices  Incl. snow, ice thickness, salinity, ocean currents RESEARCH VESSELS  A wide range of measurements: Physical – chemical – biological properties FLAGSHIP STATIONS  Manned drifting ice stations and permanent coastal and archipelago stations Ref. Timo Vihma FMI

Modeling platforms Experimental and analytical platforms Observational platforms Data base and data portal Highly integrated Highly distributed PEEX RI: STRUCTURE AND SERVICES Data and RI access

Prof. Sergej Zilitinkevich, FMI, Nizhny Novgorod State University a world leader scientist in a field of atmospheric boundary layer physics Russian Mega Grant holder EU Advanced Grant holder ISI Web of Science 1637 citations of 110 articles of S.S. Zilitinkevich, H-index is 21. PEEX PREFACE – the PEEX-Initiators Academy Prof. Markku Kulmala, Univ. Helsinki a world leader scientist in atmospheric aerosol science and one of the founders of “terrestrial ecosystem meteorology” EU Advanced Grant holder Coordinator of Nordic Center of Excellence “CRAICC” ISI Web of Knowledge, 1st in the Citation Rankings in Geosciences (since ). The total number of citations is over (from over 8000 different papers), H-factor is 76.

PEEX in-situ infrastructure vision Based on existing stations and new stations filling the gaps construct a compherensive and harmonized station network in the PEEX domain that provide the required observations pertinent to the science questions.

The PEEX domain Arctic and boreal Eurasian continent, Arctic sea and China