The DYVALOCCA project aims to understand the extensive low-level cloud cover that develops during the dry season in western Central Africa, which is an unusual occurrence in the moist tropics.
Conducting research on climate change implications
The DYVALOCCA project is a research project focused on studying the extensive low-level cloud cover that develops during the June-September main dry season in western Central Africa. This phenomenon, unique in the moist tropics, extends from the coastal plains of Gabon and Congo-Brazzaville to the inland plateaus downstream of the Chaillu mountains. The project aims to understand this unusual cloudy dry season, which is the longest (approximately 4 months) and driest (<1mm/day) in Central Africa, and its potential role in sustaining the region’s dense evergreen forests. Funded by ANR and DFG for the period 2020-2022, DYVALOCCA employs various research methods, including the use of weather stations and advanced technology like the Sky InSight™ infrared all-sky imager developed by Reuniwatt. Recent developments in the project include the publication of several papers providing insights into the low cloud cover.
Infrared technology to observe the evolution of the cloud cover
Understanding the role of this cloud cover in sustaining the region’s dense evergreen forests is essential to assess climate change implications, and act accordingly. Clouds provide valuable information for weather prediction and climate studies, in particular for precipitation, atmospheric circulation and surface radiation. With a range of measurement material (Ceilometer, Disdrometer, Sodar, Microwave sounder, Tethersondes and radiosondes, infrared sky imager), the research consortium, co-led by Dr. Nathalie Philippon (CNRS researcher at IGE), has been developing the first conceptual model for low-cloud formation and
dissolution in western equatorial Africa. Our all-sky imager Sky InSight™ has been providing the research team of DYVALOCCA with ultra-local information through real-time observations of the cloud cover around the clock with a high temporal and spatial resolution.
Learn more about our flagship project and download the document:
About Reuniwatt (www.reuniwatt.com)
Reuniwatt is a major player of the solar radiation and cloud cover assessment and solar and wind power forecasting. Based on solid Research and Development works, the company offers reliable products and services intended for professionals of various fields, making the best out of two key facets of the meteorology: atmospheric physics and data sciences. A particular focus has been placed on solar energy forecasting, while developing cutting edge solutions to improve the short-term prediction of the solar resource.
The company has won many grants, including H2020’s SME Phase 1 programme, which makes Reuniwatt a European Champion with regard to innovation. Reuniwatt has also been selected among the national fast-growing companies to join the prestigious French Tech 120 programme in 2020 and 2021, and the French Space Tour 2021.
