Weather & Climate

The next generation of high resolution weather prediction models will require very high levels of spatial and temporal continuity. Satellite observations for global coverage will have to be interlinked with ground-based instrument networks offering high vertical and temporal resolution. Leosphere provides highly accurate wind and aerosol Lidars that perform 24/7 real-time measurements and high-level data processing. Their network capabilities allow our customers to connect Leosphere equipment to their IT infrastructure, and to use the final data products relevant to their applications.

Severe weather and atmospheric hazards

High-resolution wind data flow can help predict local severe weather and storm formation as well as generally improving weather forecasts saving time and lives.

Spurred on by volcanic ash disasters, met agencies now need a definitive and unambiguous complement to satellite data and numerical weather forecasting models to identify, locate, characterize, and quantify upper clouds, aerosol plumes and volcanic ash clouds from near ground levels all the way to the top of the troposphere.

In parallel, there is a growing interest at International Civil Aviation Organization (ICAO) level for Lidar networks in the monitoring of cloud cover and ash plume dispersion to ensure airspace safety.

Short-term weather forecasting is extremely important for all economic activities impacted by weather and pollution, such as fog, haze, smog and other critical pollution events. These forecasts have been greatly improved thanks to the ability of Lidars to monitor highly accurately the first vertical layers of the atmosphere, which are not covered by standard ground observations.

Met agencies need to monitor all meteorological and atmospheric parameters such as wind, turbulence, clouds and aerosols so they can contribute to efficient and effective crisis management assistance by public authorities and private companies.

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Aerosols impact

The latest Intergovernmental Panel on Climate Change report clearly highlights the impact of natural or anthropogenic-based particles on the radiative balance. Aerosols also affect cloud properties, such as size and shape of droplets, influencing the water cycle. This could be a reason for the intensification of monsoons. This is why the current goal of WMO members is to build Lidar networks in order to feed climate models and databases with continuous planetary boundary layer heights and profiles of optical atmospheric properties.

The same Lidar networks will help met agencies track the upper-air transport of these particles.  Their potential impact on the economy, nature, and health cannot be overestimated. For example, aerosols accelerate the melting of glaciers by darkening their surface, damage electrical and transport infrastructure and, when combined with local pollution, worsen air quality.

Networks of wind and aerosol vertical or 3D scanning profilers will help to address all these environmental and societal issues.

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