Polar bear helps out with MOSAiC experiment
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Tag: science
First data set of H2O/HDO columns from the Tropospheric Monitoring Instrument (TROPOMI)
A new dataset of vertical column densities of H2O and HDO retrieved from short-wave infrared reflectance measurements by the TROPOMI instrument onboard the Sentinel-5p satellite was recently released. The data quality shows improvements in noise level compared to previous missions like SCIAMACHY. The retrieval methodology, the validation approach and demonstrative applications of the dataset are …
Performance evaluation for the QAA algorithm to retrieve particulate backscattering
The Quasi-Analytical Algorithm was developed to derive inherent optical properties by analytically inverting the spectral remote-sensing reflectance. It is the algorithm used in the ESA Ocean-colour CCI project to retrieve particulate optical backscattering (bbp). Due to the high uncertainties still associated to QAA global retrievals of bbp, reliable accuracy estimates of the QAA are essential …
New studies to improve the estimation of sea ice thickness and seasonal growth rate
Accurate measurements of the sea ice area and thickness with the aid of ranging data provided by missions such as CryoSat-2 are crucial for the understanding of the transformations occurring in the Arctic, in light of observed changes in seasonality, increase of winter air temperatures and delays in freeze-up. An important factor in the calculation …
SENTINEL-5P+ INNOVATION – THEME 5, AEROSOL OPTICAL DEPTH (AOD) + BRDF
Prime company: GRASP-SAS (FR)The capability of Sentinel-5p for aerosol monitoring is currently not used to its full potential. However, satellite observations in the spectral range from approximately 340 to 400 nm are known to have unique sensitivity to elevation and absorption of tropospheric aerosols. Traditionally, this sensitivity is used in many ozone monitoring instruments such as TOMS, GOME-1, …
MOOC ATMOSPHERE
Prime company: Imperative Space (GovEd Ltd) (GB)The course will introduce learners to the role of satellite ‘Earth observation’ (EO) technology in monitoring the Earth’s Atmosphere and the data it produces looking also at the importance of ground based remote sensing and in situ observations, which complements as well as validates EO data. During the first week state of art atmospheric scientists …
Independent Component Analysis of Satellite Radar Imagery for Volcanic Processes – IMRICA extension
Prime company: UNIVERSITY OF LEEDS, SCHOOL OF EARTH AND ENVIRONMENT (GB)Satellite Interferometric Synthetic Aperture Radar (InSAR) is a powerful Earth Observation tool for the analysis of subaerial volcanic deformation – a parameter that is critical both for monitoring hazardous volcanic systems and for understanding magma storage in the shallow crust. The long duration and consistent acquisition strategy of ESA’s Sentinel-1 mission as part of the …
TOP: atmospheric multi-source data cube
Currently we speak of the ‘golden age’ of Earth Observation (EO). Not only can we access a variety of data from heritage and current EO missions serving scientific and operational needs, new systems for monitoring our blue planet are constantly being planned, built, and sent into the Earth orbit. Regarding atmospheric science, a major step …
CryoSat maps ice shelf on the move
Scientists have developed a novel approach of using CryoSat to generate a unique time series of ice front positions for the Filchner-Ronne ice shelf – the second largest ice shelf in Antarctica. Applying a new method, called ‘elevation edge’, to CryoSat’s data has revealed that the entire Filchner-Ronne ice shelf advanced by more than 800 …
Greenland ice loss much faster than expected
The Ice Sheet Mass Balance Inter-comparison Exercise (IMBIE), an international team of 89 polar scientists led by Andrew Shepherd from the University of Leeds and Erik Ivins at NASA’s Jet Propulsion Laboratory, compared and combined data from 11 satellites – including ESA’s ERS-1, ERS-2, Envisat and CryoSat missions, as well as the EU’s Copernicus Sentinel-1 …