This new type of satellites capable of measuring CO2 emissions to the nearest kilometer and pinpointing their origin.
One of these nanosatellites, PICASSO, carries
remote sensing technology developed which will be used to undertake
measurements in the upper layers of Earth’s atmosphere.
PICASSO stands for Pico-Satellite for Atmospheric and Space Science Observations and it’s the first CubeSat nanosatellite mission of the Royal Belgian Institute for Space Aeronomy.
Weighing only 3.5kg, it carries two measuring instruments for
atmospheric research: A Visible Spectral Imager
for Occultation and Nightglow (VISION) and a system to conduct plasma
measurements in the ionosphere, the Sweeping Langmuir Probe (SLP).
This project of analysis and collection of satellite data will be
carried out over 5 years. The aim is to obtain as much precise information as
possible on the quantification of gases in the air.
We will be able to know exactly the real CO2 emission by country, cities and the origin of gases (if it’s anthropogenic or natural).
Thanks to this initiative, more and more surveillance systems will be
sent into space over the next few years, which will help develop the market for
remote sensing solutions.
Cimel will be part of this development by bringing additional data thanks to its photometers and LiDARs to help calibrate and validate data from satellites.
Sunbelt Spectra comparison with Standard ASTM G173: the Chilean case
Two spectra of solar direct normal irradiance (including circumsolar) are estimated based on spatio-temporal averages of the relevant atmospheric parameters extracted from two different databases: MODIS satellite sensor retrievals and AERONET sun photometer network. The satellite database is used to calculate an average spectrum for the area of the Atacama Desert. The AERONET database is used for two purposes: (i) to apply bias-removal linear methods to correct the MODIS parameters over Atacama, and (ii) to calculate an average local spectrum for the Paranal station. The SMARTS radiative transfer model is used to obtain the three spectra developed in this study. Both the Atacama and Paranal spectra are compared against each other and also to the world reference, ASTM G173. In one of the cases, significant differences are found for short wavelengths. In order to quantify the relative importance of these spectral differences, the propagation of errors due to the use of each spectrum is evaluated for CSP applications over the Atacama Desert, considering twelve different scenarios involving the reflectance, transmittance or absorptance of various materials.
Citation:Marzo, Aitor & Polo, Jesus & Wilbert, Stefan & Gueymard, Chris & Jessen, Wilko & Ferrada, Pablo & Alonso-Montesinos, Joaquín & Ballestrín, Jesús. (2017). Sunbelt Spectra comparison with Standard ASTM G173: the Chilean case. AIP Conference Proceedings. 2033. 10.1063/1.5067195.
For the entire month of July in Caillouël-Crépigny (France), scientists from the University of Lille and ATMO Hauts-de-France will analyze particles in the air and their impact on health in rural areas.
Since 28 June, more than twenty air pollution measuring devices deployed over 100 m² in the commune of Caillouël-Crépigny (02) may answer this question.
Objectives: To understand the formation and the composition of particles and their precursors in the air in a rural environment during the summer period.
The sensors collect dust from the countryside and nearby dust from forests, roads, buildings and industries in the distance.
The facility consists of four containers installed on 100 m² in the village square of Caillouël-Crépigny. They accommodate twenty-two observation instruments including our Cimel Sun Sky Lunar CE318-T photometer as well as our CE376 micro-LiDAR. These instruments, unique in France, measure the impact of climate change on air quality, biodiversity and health. Thirty researchers take turns night and day to study the chemical modifications of particles during periods of high heat.