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The ARISE2 project is a collaborative infrastructure Design Study project funded by the H2020 European Commission, addressing topic "Atmospheric Dynamics Research Infrasructures in Europe". It includes 24 institutes and universities, belonging to 10 European member states, 3 associated countries, 1 international organization and 3 African countries (1/9/15-31/8/18).​

The ARISE Design Study project (i) proposes to design a new infrastructure that integrates different atmospheric observation networks to provide a new 3D image of the atmosphere in the different atmospheric layers from ground to mesosphere with unprecedented spatio-temporal resolution. The infrastructure coverage will be Europe and outlying regions, including polar and equatorial regions; (ii) aims to revive existing collaborations among European scientists while developing and integrating, for the first time, a large set of complementary topics such as infrasound, gravity and planetary waves, stratosphere and mesosphere disturbances, satellite atmospheric studies and modelling of the atmosphere, and atmospheric dynamics. Data collected by these multiple networks will be analyzed to extract optimized estimation of the evolving state of different atmospheric layers, which would help to constrain the parameterization of gravity waves and to better initialize forecasts of the middle and upper atmosphere.

The implied networks are the infrasound network developed for verification Comprehensive Nuclear-Test-Ban Treaty (CTBT) completed by the European infrasound network composed of national stations and networks, the Network for the Detection of Atmospheric Composition Changes (NDACC) using LIDAR (LIght Detection And Ranging) and complementary meteor and MST radars, wind radiometers, infrasound stations located near volcanoes for volcanic sources studies, ionospheric sounding arrays to determine coupling with near Earth space and satellite observations.​

It has been robustly demonstrated that variations in the circulation of the middle atmosphere influence weather and climate throughout the troposphere all the way to the Earth's surface. A key part of the coupling between the troposphere and stratosphere occurs through the propagation and breaking of planetary-scale Rossby waves and gravity waves. Limited observation of the middle atmosphere and these waves in particular limits the ability to faithfully reproduce the dynamics of the middle atmosphere in numerical weather prediction and climate models. ARISE combines for the first time international networks with complementary technologies such as infrasound, lidar, airglow, radar systems, ionospheric observations and satellites. This joint network provides advanced data products used as benchmarks for weather forecast models. The ARISE network also allows enhanced and detailed observations of other extreme events in the Earth system, such as erupting volcanoes, magnetic storms, tornadoes and tropical thunderstorms, for a better understanding of underlying physical processes and future monitoring for civil applications.

ARISE measurements will be used for improving stratosphere-resolving climate and weather forecasting models, for monitoring middle atmosphere climate, for civil applications related to monitoring of naturals hazards such as distant non instrumented volcanoes.​ The expected benefits would be a better description of the atmosphere and an improved accuracy in short- and medium-range weather forecasts. ARISE measurements will also be used to improve the representation of gravity waves in stratosphere-resolving climate models, crucial to estimating the impact of a range of stratospheric climate forcing on the troposphere. In the long term, the data will be used for monitoring of middle atmosphere climate, its long-term mean trends and changes in extreme events. The benefits also include civil applications related to monitoring of natural hazards

From the 1st September 2015 University of Florence, with LGS Reserch Group, is an active partner of ARISE2 Project with the infrasound volcano monitoring.

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