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Amundsen-Nobile Climate Change Tower Integrated Project (CCT-IP)

Climate Change in the Arctic is more visible and develops faster than in any other part of the Earth. The permanent presence of sea ice, ice sheets snow and continuous permafrost are unique features of the polar regions and amplify the impact of global climate change on the regional physical climate systems. Humans are inextricably linked to the ch

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Project date

Starts
2009-03-01

Ends
2020-12-31

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Project type

  • long-term monitoring

Discipline

  • atmosphere
  • terrestrial biology
  • cryosphere

Project Keywords

  • atmosphere / atmospheric temperature / atmospheric stability

Fieldwork information

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Type Period From To Coordinates Station Location
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Summary

Climate Change in the Arctic is more visible and develops faster than in any other part of the Earth. The permanent presence of sea ice, ice sheets snow and continuous permafrost are unique features of the polar regions and amplify the impact of global climate change on the regional physical climate systems. Humans are inextricably linked to the changes we are observing today, as drivers of change through anthropogenic activities and as the many populations needing to prepare for the uncertainties that lie ahead. To establish super-sites where to measure the largest number of key parameters, perform closure experiments, assess knowledge on processes and evaluate uncertainties in their parameterizations, is important to understand the Arctic climate system. Svalbard lie in an ideal position to monitor the combined effects of climate change affecting the atmosphere, as well as the ocean and land, and Ny-Ålesund represents a unique site, where international cooperation among countries can allow the monitoring of a much greater number of key parameters of the Arctic climate system. The Climate Change Tower Integrated Project aims an experimental platform to investigate arctic ABL energy budget, and the role played by the different processes involving air, aerosols, clouds, snow, ice and land (permafrost and vegetation). A key element of this integrated platform is the 34 m height Amundsen-Nobile Climate Change Tower (CCT). Other two important pieces are physico chemical aerosol measurements implemented in Gruvebadet building and the mini-lidar hosted at Koldeway building (AWIPEV station). Accurate measurements of radiation fluxes, as well as those of sensible and latent heats, will allow the evaluation of both radiation and energy balance. Research activities on permafrost will allow to monitor and evaluate the transfer of energy dozens of meters deep and how climatic changes on the surface affect the lower strata, while ABL measurements will permit to extend studies on energy transfer processes down to levels of hundreds meters. Monitoring of aerosol physico-chemical characteristics, cloudiness and surface properties will allow to determine their role in modulating balance at the surface and influence in starting the snow-melting process in spring. Measurements of down-welling and up-welling mass fluxes (aerosols, gaseous substances) and measurements of more important Short-lived Pollutants (SLPs) will permit to improve our knowledge on chemical and physical processes controlling the dynamic of trace elements (and their species) in the Arctic snow and highlight the importance of local surface processes with respect to long-range transport processes. The CCT has been installed along the direction E – W in the Kolhaugen area opposite to where the Nobile launch tower is located in respect to the village. This choice is the result of a compromise between the logistic and scientific constraints. The platform is oriented along the prevailing wind direction, with the shorter side facing the wind. Near the platform is located a little HUT to host computers and data acquisition systems. Optical fiber link is provided from the hut to the Dirigibile Italia Station. Actually the CCT is operational with 4 levels equipped with thermo hygrometers and wind sensors, measurements of all components of the radiation budget at the top, heat flux and temperature measurements at the interface between soil and snow layer, an infrared sensor to measure the snow skin temperature and a snow level acoustic sensor. All sensors acquire with a one-minute average rate and transmit the data directly through the network to the data server in ISAC – Bologna. Last 10 days are available in graphs on the project web page.

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