The detection of trace gas plumes allows us to improve attribution of pollutant emissions and photochemical processing in the global troposphere. Data collected by the ESA TROPOspheric Monitoring Instrument (TROPOMI) has resulted in a growing number of case studies that have used ad hoc methods to detect plumes for science applications. Developing a more comprehensive …
Clouds play an important role in the energy budget of our planet: optically thick clouds reflect the incoming solar radiation, leading to cooling the Earth, while thinner clouds act as “greenhouse films”, preventing escape of the Earth’s long-wave radiation to space. Cloud response to ongoing greenhouse gases climate warming is the largest source of uncertainty …
Stratospheric ozone (the “ozone layer”) protects the biosphere from harmful UltraViolet (UV) radiation. Ozone (O3) is expected to recover as a consequence of the Montreal Protocol signed in 1987 and its Amendments regulating the phase-out of ozone-depleting substances (ODS). The stratospheric halogen amount (mainly bromine and chlorine) released by ODSs reached its maximum abundance in …
Observing and understanding aerosol properties is fundamental for the remote sensing community, yet things get more complicated in cloudy environments. Pixels located in the transition zone between pure cloud and pure aerosol are often discarded by both aerosol and cloud algorithms, despite being essential for studying aerosol–cloud interactions, which still represent the largest source of …
A high level of innovation in algorithm development and methodological approach is the key feature of the activities performed during the ESA S5P+Innovation AOD/BRDF project. Aerosol Optical Depth (AOD) is the single most comprehensive variable for the remote assessment of the aerosol load in the atmosphere. Atmospheric aerosols, such as aerosols from the burning of …
3rd EO AFRICA R&D Facility Online Course Deadline for applications: April 1, 2022 Introduction to the course: Satellite Earth observation, hydro-meteorological modelling and data assimilation provide a powerful combination for quantifying hydroclimatic variables to effectively address water management issues in this online course, an introduction will be given to the theory and techniques to observe the …
Pollutant and greenhouse gas emission inventories provide essential information for policy makers, governments and subsidiary bodies to evaluate progress towards emission abatement measures, and decide on future strategies. Inventories use different methodologies between countries, and have large uncertainties related to both activity data and emission factors. The use of satellite data, notably the imagery of …
Developed in the context of the EO Africa project, this series of webinars covers a variety of topics related to the use of Earth Observation (EO) for topics related to water and food security. The recorded webinars, which consist of theoretical background, applications examples and Q&A session, are available here below. Access specific videos (click …
Satellites provide crucial, and increasingly important, information to help understand our changing climate. However, better understanding Earth observation data can be a daunting task for new users. A new online course, developed by the University of Twente, on behalf of ESA, helps students, researchers and other professionals analyse satellite data to help measure and mitigate …
The detection and repair of methane leaks from fossil fuel production activities have been identified as a key climate change mitigation strategy. In the last years, a number of optical satellite missions with a spatial resolution of 30-m or better have shown potential for the detection of strong methane plumes emitted by point sources, which …
