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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20261001T150000
DTEND;TZID=Europe/Rome:20261001T160000
DTSTAMP:20261028T141951
CREATED:20260917T143442Z
LAST-MODIFIED:20260917T143443Z
UID:5445-1790866800-1790870400@sciencehub.esa.int
SUMMARY:The Hub Talks: The TROPOMI Ozone Profile Retrieval Algorithm: Status and Improvements for Tropospheric Ozone Detection
DESCRIPTION:Speaker: Serena Di Pede\, KNMI (Royal Netherlands Meteorological Institute) \n\n\n\nShort Bio: Serena Di Pede is a Researcher at KNMI (Royal Netherlands Meteorological Institute)\, where she has been part of the L2 retrieval team since 2022\, working onthe operational ozone profile retrieval algorithm for the Sentinel-5P TROPOMI instrument. She also closely collaborates with the L1B team on the UVradiometric calibration of TROPOMI’s input data. Since 2024\, she is a PhD candidate in the Department of Geosciences and Remote Sensing at TU Delft\,applying the TROPOMI retrieval algorithm to tropospheric ozone studies over polluted areas in China as part of the ESA-MOST/NRSCC Dragon 6 Programme.She studied Physics at the University of Bologna\, with a Master’s degree in Nuclear and Subnuclear Physics \n\n\n\n\nAbstract: Ozone is one of the most important trace gases in the Earth’s atmosphere. Its effects depend strongly on altitude: stratospheric ozone protects the biosphere from harmful UV radiation\, while tropospheric ozone negatively impacts human health\, ecosystems and agriculture\, and acts as a significant anthropogenic greenhouse gas. In recent years\, tropospheric ozone pollution has noticeably increased in several highly polluted regions worldwide. Because ozone concentrations and their evolution vary strongly by region and climate\, daily global monitoring of the vertical ozone distribution is needed to understand its variability and transport across different scales.The TROPOMI ozone profile retrieval offers a unique opportunity to study the global 3D ozone distribution at high horizontal spatial resolution (28 × 28 km²)\, resolving five to six independent vertical pieces of information (degrees of freedom\, DFS). As expected for a nadir-viewing instrument\, vertical sensitivity decreases toward the surface\, making tropospheric ozone detection particularly challenging.In this talk\, I will present the current status of the TROPOMI ozone profile retrieval and discuss the efforts to enhance its sensitivity to tropospheric ozone. We focus on key aspects of the retrieval chain\, including the radiometric calibration of the input spectra\, the treatment of measurement noise\, and the choice of a priori ozone profile information. We show how refining these elements improves the information content and the overall quality of the retrieved product\, particularly in the lowest layers of the atmosphere. \n\n\n\n\n\n\n\nMicrosoft Teams meeting \n\n\n\nJoin: https://teams.microsoft.com/meet/32557833884145?p=xo3EO8Qt4ApyCoCO6I \n\n\n\nMeeting ID: 325 578 338 841 45 \n\n\n\nPasscode: ii7Xa7aC \n\n\n\n\n\n\n\nNeed help? | System reference \n\n\n\nDial in by phone \n\n\n\n+39 02 0062 4740\,\,172535451# Italy\, Milan \n\n\n\nFind a local number \n\n\n\nPhone conference ID: 172 535 451# \n\n\n\nJoin on a video conferencing device \n\n\n\nTenant key: teams@meet.esa.int \n\n\n\nVideo ID: 122 681 065 1 \n\n\n\nMore info \n\n\n\nFor organizers: Meeting options | Reset dial-in PIN \n\n\n\n\n\n\n\nOrg help | Privacy and security
URL:https://sciencehub.esa.int/event/the-hub-talks-the-tropomi-ozone-profile-retrieval-algorithm-status-and-improvements-for-tropospheric-ozone-detection/
CATEGORIES:Science Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20260625T150000
DTEND;TZID=Europe/Rome:20260625T160000
DTSTAMP:20261028T141951
CREATED:20260618T092651Z
LAST-MODIFIED:20260618T093746Z
UID:5302-1782399600-1782403200@sciencehub.esa.int
SUMMARY:The Hub Talks: The STRIVE Earth System Explorer mission: Transforming our view of the upper troposphere and stratosphere
DESCRIPTION:Speaker: Lyatt Jaeglé\, University of Washington\, USA \n\n\n\nShort Bio: Lyatt Jaeglé is a Professor in the Department of Atmospheric and Climate Science at the University of Washington. She joined the University of Washington in 2000 after obtaining her Ph.D. in Environmental Engineering Science from the California Institute of Technology and completing postdoctoral research at Harvard University. \n\n\n\nHer research focuses on understanding the chemical composition of the atmosphere and how natural processes and human activities influence air quality\, climate\, and atmospheric composition from regional to global scales. She combines satellite observations\, aircraft measurements\, ground-based observations\, and atmospheric chemistry models to study regional air quality\, long-range transport\, stratosphere–troposphere exchange\, and aerosol sources from urban to remote environments. Jaeglé has participated in numerous NASA and NSF aircraft field campaigns and has authored more than 100 peer-reviewed publications. She currently serves as the Principal Investigator of STRIVE (Stratosphere Troposphere Response using Infrared Vertically-resolved light Explorer)\, a NASA Earth System Explorer mission\, selected for development in 2026. \n\n\n\n\n\n\n\n\nAbstract: Stratosphere Troposphere Response using Infrared Vertically-resolved light Explorer (STRIVE) is a NASA Earth System Explorer mission recently selected for continued development. Following a successful Phase A concept study\, STRIVE has entered Phase B\, with launch planned in 2030. STRIVE fills a critical need for high vertical resolution profiles of temperature\, ozone\, trace gases\, and aerosols in the upper troposphere and stratosphere with near-global horizontal sampling. The goal of STRIVE is to understand the processes controlling the composition and dynamics of the upper troposphere and stratosphere\, thus constraining their critical influence on the predictability of weather\, climate\, the ozone layer\, and air quality. \n\n\n\nThe mission carries two synergistic limb-viewing instruments: a limb-scanning imaging Dyson spectrometer retrieving profiles of temperature\, trace gas concentrations\, aerosol extinction\, and cloud properties during day and night; and a dual-spectral multi-directional limb profiling radiometer retrieving detailed aerosol properties during day. STRIVE will measure infrared radiation emitted and scattered from the atmospheric limb to provide profiles of temperature\, O3\, H2O\, CH4\, N2O\, CFCs\, CO\, NO2\, HNO3\, ClONO2\, N2O5\, HCN\, cloud top height\, polar stratospheric clouds\, and aerosol properties with fine vertical resolution (1 km) and unparalleled horizontal sampling (>400\,000 profiles each day). STRIVE has the novel ability to resolve small-scale vertical structures of atmospheric composition and temperature\, enabling new insights into the processes of troposphere-stratosphere interactions. \n\n\n\n\n\n\n\nMicrosoft Teams meeting \n\n\n\nJoin: https://teams.microsoft.com/meet/32557833884145?p=xo3EO8Qt4ApyCoCO6I \n\n\n\nMeeting ID: 325 578 338 841 45 \n\n\n\nPasscode: ii7Xa7aC \n\n\n\n\n\n\n\nNeed help? | System reference \n\n\n\nDial in by phone \n\n\n\n+39 02 0062 4740\,\,172535451# Italy\, Milan \n\n\n\nFind a local number \n\n\n\nPhone conference ID: 172 535 451# \n\n\n\nJoin on a video conferencing device \n\n\n\nTenant key: teams@meet.esa.int \n\n\n\nVideo ID: 122 681 065 1 \n\n\n\nMore info \n\n\n\nFor organizers: Meeting options | Reset dial-in PIN \n\n\n\n\n\n\n\nOrg help | Privacy and security
URL:https://sciencehub.esa.int/event/the-hub-talks-the-strive-earth-system-explorer-mission-transforming-our-view-of-the-upper-troposphere-and-stratosphere/
CATEGORIES:Science Talks
ATTACH;FMTTYPE=image/png:https://sciencehub.esa.int/wp-content/uploads/2026/06/STRIVE-scaled.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20260226T043000
DTEND;TZID=Europe/Rome:20260226T050000
DTSTAMP:20261028T141951
CREATED:20260317T155255Z
LAST-MODIFIED:20260420T125222Z
UID:4944-1772080200-1772082000@sciencehub.esa.int
SUMMARY:The Hub Talks: The Science and Technology behind Spaceborne Doppler velocity measurements
DESCRIPTION:Abstract: The Earth Cloud\, Aerosol\, and Radiation Explorer (EarthCARE) 94-GHz Cloud Profiling Radar (CPR)\, is the first spaceborne Doppler radar that provides coincident measurements of reflectivity and Doppler velocity\, opening the path to quantifying vertical air motions and hydrometeor sedimentation velocities from space. The coming decade will feature several additional space-borne missions including the NASA-Investigation of Convective Updrafts (INCUS) and the JAXA-NASA Atmosphere Observing System (AOS) Precipitation Measurement Mission (PMM) and the ESA Wind Velocity Radar Nephoscope (WIVERN) explorer mission. Despite being deployed hundreds of kilometers above the Earth’s surface\, these planned missions are expected to offer unprecedented measurement capabilities\, that in many ways will be superior to those available today from suborbital platforms. Furthermore\, the convection measurement capabilities from the different planned space missions are based on different measurement techniques and are applied at different resolutions and detection limits. As such\, they will provide highly complementary insights into the different parts and processes of the spectrum of convection. Here\, we will review the scientific importance these measurements in cloud and precipitation studies and the technical challenges and approaches utilized by the different missions. \n\n\n\nShort bio: Pavlos Kollias received the B.Sc. and M.Sc. degrees in Physics and Environmental Physics from the University of Athens\, Athens Greece in 1994 and 1996 respectively and the Ph.D degree in meteorology from the University of Miami\, Miami FL in 2000. He is currently a SUNY Empire Innovation Professor at the School of Marine and Atmospheric Sciences at Stony Brook University – SUNY and has a joint appointment with the Environmental Science and Technologies Department at Brookhaven National Laboratory. He is also Adjunct Professor at the Department of Atmospheric and Oceanic Sciences at McGill University\, Canada and Global faculty at the University of Cologne Germany. Kollias was a prestigious Canada Research Chair and Professor at McGill University\, Montreal Canada from 2007 to 2016. \n\n\n\nKollias has spent twenty-five years at the cutting edge of atmospheric experimentation. Kollias is internationally recognized as one of the leading thinkers in the use of radars for the study of atmospheric phenomena. He has authored and co-authored over 230 peer-reviewed scientific articles\, and he is the recipient of a Humboldt Research Fellowship from Germany in 2013 and of the AGU Atmospheric Sciences Ascent Award in 2020.
URL:https://sciencehub.esa.int/event/the-hub-talks-the-science-and-technology-behind-spaceborne-doppler-velocity-measurements/
CATEGORIES:Science Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20251001T110000
DTEND;TZID=Europe/Rome:20251001T120000
DTSTAMP:20261028T141951
CREATED:20250927T170246Z
LAST-MODIFIED:20251022T164359Z
UID:4656-1759316400-1759320000@sciencehub.esa.int
SUMMARY:The Hub Talks: The NASA-ISRO SAR (NISAR) Mission: Overview and Status
DESCRIPTION:Speaker: Dr Marco Lavalle is the Deputy Project Scientist for the NISAR Mission and the Group Supervisor (JPL equivalent for ESA’s Section Manager) of the SAR Algorithms and Processing Group at the NASA Jet Propulsion Laboratory (Pasadena\, California). He received an M.Sc. in Telecommunication Engineering from the University of Rome Tor Vergata (Rome\, Italy) in 2006 and a Ph.D. from the University of Rennes 1 (Rennes\, France) and the University of Rome Tor Vergata in December 2009. From 2006 to 2008\, he was a Visiting Scientist at the European Space Agency (ESRIN)\, supporting ESA’s activities on polarimetric radar calibration and interferometric algorithm development. From January 2010 to December 2011\, he was a NASA Postdoctoral Fellow at JPL. He became a Staff Scientist in the Radar Science and Engineering Section at JPL in January 2012. Dr. Lavalle has served as Principal Investigator and co-Investigator for several NASA programs. He has been leading the NASA Distributed Aperture Radar Tomographic Sensors (DARTS) project and is a member of the ESA ROSE-L Mission Advisory Group. His research interests include retrieval algorithm development using interferometric and polarimetric radar techniques\, physical and statistical model formulation\, electromagnetic propagation\, scattering theory\, SAR tomography\, ecosystem modeling\, and surface parameters estimation. Dr. Lavalle is the recipient of the 2019 NASA Early Career Public Achievement Medal and the 2020 JPL Lew Allen Award for Excellence. \n\n\n\nAbstract: The NASA-ISRO Synthetic Aperture Radar (NISAR) Mission launched successfully on July 30\, 2025\, and will begin distributing science data as early as mid-October 2025\, ramping up to full science operations – collecting all land and ice-covered surfaces every 12 days from ascending and descending orbit vantage points – in early November 2025. These data will be freely and openly distributed from the NASA Alaska Satellite Facility within days of acquisition. NISAR observations are capable of addressing fundamental and applied research topics spanning disciplines that include ecosystems science\, cryosphere science\, geodesy\, solid earth science\, hydrology\, disaster response\, and resource management. This talk will provide an overview of the mission\, including its science and technology innovation\, and dive into its status with emphasis on data and uniqueness of this first-of-its-kind L and S band mission. \n\n\n\n\n\n\n\n\n\n\n\nJoin link information👇 \n\n\n\n\nMicrosoft Teams Need help? \n\n\n\nJoin the meeting now \n\n\n\nMeeting ID: 354 874 898 068 \n\n\n\nPasscode: dV68GG6z \n\n\n\n\n\n\n\nDial in by phone \n\n\n\n+39 02 0062 4740\,\,397106131# Italy\, Milan \n\n\n\nFind a local number \n\n\n\nPhone conference ID: 397 106 131# \n\n\n\nJoin on a video conferencing device \n\n\n\nTenant key: teams@meet.esa.int \n\n\n\nVideo ID: 121 272 605 6 \n\n\n\nMore info \n\n\n\nFor organizers: Meeting options | Reset dial-in PIN \n\n\n\n\n\n\n\nOrg help | Privacy and security \n\n\n\n________________________________________________________________________________
URL:https://sciencehub.esa.int/event/the-hub-talks-the-nasa-isro-sar-nisar-mission-overview-and-status/
CATEGORIES:Science Talks
ATTACH;FMTTYPE=image/jpeg:https://sciencehub.esa.int/wp-content/uploads/2025/09/Nisar_Mission.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20250925T150000
DTEND;TZID=Europe/Rome:20250925T160000
DTSTAMP:20261028T141951
CREATED:20250918T133410Z
LAST-MODIFIED:20260413T132419Z
UID:4645-1758812400-1758816000@sciencehub.esa.int
SUMMARY:The Hub Talks:  Carbon Mapper - Global distributions of super-emitting methane point sources as detected by satellites
DESCRIPTION:Speaker: Daniel Cusworth is the Science Director for Carbon Mapper. Carbon Mapper’s mission is to drive greenhouse gas emission reductions by making methane and carbon dioxide data accessible and actionable. Daniel oversees algorithm development\, validation\, analysis\, and applications of airborne and satellite greenhouse gas datasets. He was formerly a Data Scientist at the NASA Jet Propulsion Laboratory and a Research Scientist at University of Arizona and worked on quantification of anthropogenic carbon dioxide and methane emissions from regional to facility scales. He received his B.S. in Applied Math/Atmospheric Sciences at UCLA and Ph.D. in Atmospheric Chemistry at Harvard University. \n\n\n\n \n\n\n\nAbstract: Super-emitting (>100 kg/h) methane sources likely contribute significantly to total emissions across several oil&gas basins\, but the robust quantification and characterisation of these sources remains uncertain in absence of routine\, transparent\, and robust measurements. Solving this quantification gap is particularly important given international regulations and initiatives to require low methane intensities across the oil&gas supply chain by country and operator. The Tanager-1 satellite (launched August 2024) has shown capability of detection and quantification of the vast majority of methane super-emitters given adequate observing conditions and spatiotemporal coverage. Here we show Carbon Mapper’s progress in mapping super-emitter distributions and quantifying super-emitter intensities through intensive tasking of the Tanager-1 satellite of the majority of oil and gas infrastructure across key oil&gas producing countries. With 30-m spatial resolution of Tanager-1\, we attribute each detection to facility and equipment type\, allowing for better understanding of drivers of intensities and how those drivers vary across basins. Significant distributions of super-emitters are routinely detected in Tanager-1 across austere environments (e.g.\, high latitude\, snow-covered)\, allowing for increased transparency of emission sources in regions that have been typically under-observed. Building a more complete global picture of super-emitters with attribution to infrastructure will aid in constructing mitigation roadmaps for lower-intensity energy. \n\n\n\n\n\n\n\n\n\n\n\n\n\nMicrosoft Teams Need help? \n\n\n\nJoin the meeting now \n\n\n\nMeeting ID: 328 369 308 984 \n\n\n\nPasscode: fY6LQ6Le \n\n\n\n\n\n\n\nDial in by phone \n\n\n\n+39 02 0062 4740\,\,986432030# Italy\, Milan \n\n\n\nFind a local number \n\n\n\nPhone conference ID: 986 432 030# \n\n\n\nJoin on a video conferencing device \n\n\n\nTenant key: teams@meet.esa.int \n\n\n\nVideo ID: 125 398 688 0 \n\n\n\nMore info \n\n\n\nFor organizers: Meeting options | Reset dial-in PIN \n\n\n\n\n\n\n\nOrg help | Privacy and security
URL:https://sciencehub.esa.int/event/the-hub-talks-carbon-mapper-global-distributions-of-super-emitting-methane-point-sources-as-detected-by-satellites/
LOCATION:ESRIN Science Hub\, Via Galileo Galilei\, 1\, Frascati\, RM\, 00044\, Italy
CATEGORIES:Science Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20250529T150000
DTEND;TZID=Europe/Rome:20250529T160000
DTSTAMP:20261028T141951
CREATED:20250521T073100Z
LAST-MODIFIED:20250612T124631Z
UID:4559-1748530800-1748534400@sciencehub.esa.int
SUMMARY:The Hub Talks: Mapping the spatiotemporal heterogeneity of marine plastic litter: The need for measuring ocean surface currents
DESCRIPTION:Speaker: Erik van Sebille is a professor of oceanography and public engagement at Utrecht University\, where he also received his PhD in 2009. He has worked at the University of Miami\, the University of New South Wales in Sydney\, and Imperial College in London. Erik investigates how ocean currents move ‘stuff’ around. He is the lead developer of the open-source OceanParcels.org code for Lagrangian Ocean Analysis. He is co-author of the textbook ‘Ocean Currents – Physical Drivers in a Changing World’ with Professor Robert Marsh. He led the European Research Council Starting Grant project ‘Tracking Of Plastics in Our Seas’ and is now leading the project ‘Tracing Marine Macroplastics by Unraveling the Ocean’s Multiscale Transport Processes’. In parallel to his ongoing work in physical oceanography\, he leads a research team on how scientists can be effective and inclusive in their communication and engagement with society\, specifically on the climate crisis. \n\n\n\nAbstract: The world’s ocean currents can transport floating material like plastic and plankton over very large distances. Understanding how the transport varies over time and space requires fine-resolution observations of the surface currents. Most Earth Observation techniques in operation now measure the large-scale geostrophic flow field\, but miss the direct effects of winds and waves on the transport of floating material. In this seminar\, I will make the case why accurate and near-real-time measurements of ocean surface currents is important for understanding the spatiotemporal heterogeneity of the plastic soup and the formation of hotspots of high plastic concentrations.  \n\n\n\n\n\n\n\nMicrosoft Teams Link to join: https://teams.microsoft.com/l/meetup-join/19%3ameeting_Y2E4OTUyMjgtZWEyMi00ODk0LWExNDItNDdlZTNhNTkzMmE2%40thread.v2/0?context=%7b%22Tid%22%3a%229a5cacd0-2bef-4dd7-ac5c-7ebe1f54f495%22%2c%22Oid%22%3a%22b7af1826-9b7e-4946-b84c-65c4d478cc57%22%7d 
URL:https://sciencehub.esa.int/event/mapping-spatiotemporal-heterogeneity-marine-plastic-litter/
CATEGORIES:Science Talks
ATTACH;FMTTYPE=image/png:https://sciencehub.esa.int/wp-content/uploads/2025/05/Screenshot-2025-05-29-at-15.03.14.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20250227T150000
DTEND;TZID=Europe/Rome:20250227T160000
DTSTAMP:20261028T141951
CREATED:20250305T143452Z
LAST-MODIFIED:20250406T175443Z
UID:4491-1740668400-1740672000@sciencehub.esa.int
SUMMARY:The Hub Talks: Advancing atmospheric composition monitoring for Sentinel-5
DESCRIPTION:Title: Advanced combined retrieval of aerosol\, green-house gases and surface properties with GRASP algorithm. Application to Multiangular polarimeters and SWIR spectrometers.  \n\n\n\nAbstract:One of the primary challenges in achieving the necessary precision in satellite retrievals of XCO2 and XCH4 is accurately characterizing atmospheric aerosols. Multiangular-Polarimetric measurements (MAP) represent the most advanced approach for understanding aerosol properties from space-borne platforms. Conversely\, the optimal sensitivity to CO2 and CH4 concentrations\, while minimizing scattering effects\, is typically found within the SWIR-1 and SWIR-2 spectral bands. As a result\, upcoming Copernicus missions such as Sentinel-7 CO2M or MetOp-SG Sentinel-5 with 3MI onboard are equipped with both MAP and SWIR spectrometric measurements. The Generalized Retrieval of Atmosphere and Surface Properties (GRASP) is a recently developed versatile algorithm designed for various remote sensing observations (Dubovik et al.\, 2021). GRASP relies on comprehensive and rigorous modeling of atmospheric radiation\, applicable to simulating a wide range of observations. Its numerical inversion is executed through highly statistically optimized fitting\, following the Multi-Term Least Square minimization concept. Originally applied to MAP-like measurements in various applications (POLDER\, 3MI\, CO2M/MAP)\, the GRASP approach has now been extended to combine MAP and SWIR spectrometric measurements\, offering a synergistic combined product of aerosol properties alongside additional information on columnar XCO2 and XCH4 (Li et al.\, 2019; Chen et al.\, 2020).  The GRASP algorithm is set to be employed with two different combinations of MAP and SWIR spectrometer instruments: CO2M/MAP+CO2M/CO2I (Lu et al.\, 2022) and 3MI+S5/UVNS. Theinherent generality and high flexibility of the GRASP code will demonstrate the advantages of incorporating MAP measurements for improved XCO2 and XCH4 accuracy compared to standalone spectrometers. Additionally\, it will highlight the benefits of combining additional spectrometric bands around the O2 A-Band to enhance aerosol layer height characterization (Herreras-Giralda et al.\, 2022).   \n\n\n\nSpeaker: Dr. Marcos Herreras Giralda is a scientific officer at GRASP SAS\, he has participated in several projects focused on the remote characterization of all the elements of the climate system: aerosols\, gases and surface. Furthermore\, some of them\, such as DIVA III (ESA)\, involve the connection of different satellite products\, models and ground based reference for its validation and the creation of joint products. Dr. Herreras works in thedevelopment of different new applications of GRASP from different sensors (from UV to thermal infrared) and platforms (ground-based and space-borne) to retrieve optical and microphysical properties of aerosol\, gases and surface. One of main tasks is the coordination of all the parallel developments in the code and the organization of therealisations of the new versions of GRASP. 
URL:https://sciencehub.esa.int/event/the-hub-talks-advancing-atmospheric-composition-monitoring-for-sentinel-5/
LOCATION:ESRIN Science Hub\, Via Galileo Galilei\, 1\, Frascati\, RM\, 00044\, Italy
CATEGORIES:Science Talks
ATTACH;FMTTYPE=image/png:https://sciencehub.esa.int/wp-content/uploads/2023/11/MicrosoftTeams-image-16.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20240924T100000
DTEND;TZID=Europe/Rome:20240924T110000
DTSTAMP:20261028T141951
CREATED:20240903T090808Z
LAST-MODIFIED:20241007T174436Z
UID:4274-1727172000-1727175600@sciencehub.esa.int
SUMMARY:Science Talk: Dr Luis Guanter
DESCRIPTION:The MethaneSAT mission for the detection and quantification of anthropogenic methane emissions: overview and first results \n\n\n\n\n\n\n\n\n\nAbstract: \n\n\n\nMitigating anthropogenic methane emissions is vital for reducing the rate of global warming. Under the scientific lead of the Environmental Defense Fund and Harvard University\, the MethaneSAT satellite mission is designed to detect and quantify anthropogenic methane emissions around the world\, in order to help mitigate emissions and develop global policy-relevant emission database efforts such as the International Methane Emissions Observatory.  \n\n\n\nMethaneSAT was launched on 4 March 2024 and has recently completed its commissioning phase. The instrument consists of two spectrometers\, one covering the 1249-1305 nm window sampling oxygen absorption\, and one covering 1598-1683 nm for methane and CO2 retrievals\, with <0.1 nm spectral sampling and <0.3 nm spectral resolution\, which will enable methane concentration maps with high accuracy and precision. The mission will sample up to 25 sites per day\, with a swath width of about 220 km and a spatial sampling of about 110 m x 400 m. These capabilities uniquely allow MethaneSAT to quantify total regional methane emissions\, at the same time detect high-emitting point sources and characterize diffuse area sources. This measurement approach is being tested and consolidated through a series of flight campaigns across U.S. oil and gas basins with the MethaneAIR instrument\, MethaneSAT’s airborne demostrator.  \n\n\n\nMethaneSAT will provide quantitative data products on methane emission rates focusing on the majority of worldwide oil and gas production\, with additional capacity to measure emissions from other sectors including agriculture. Operational data products related to methane emissions will be made freely available in the public domain via MethaneSAT’s data platform and the Google Cloud. \n\n\n\nSpeaker Bio: \n\n\n\nDr Luis Guanter – Environmental Defence Fund \n\n\n\nLuis Guanter obtained his degree in Physics in 2002 and his Ph.D. in Environmental Physics in 2007\, both from the Universitat de València (Spain). After several postdoctoral positions in Germany and UK\, he became Head of the Remote Sensing Section of the GFZ Potsdam in Germany and the Principal Investigator of the satellite imaging spectroscopy mission in 2014. Since March 2019 he is a Full Professor in Applied Physics at the Universitat Politècnica de València (UPV) in Spain\, where he is leading the LARS (Land and Atmosphere Remote Sensing) group in January 2020. Since March 2022 Luis Guanter is sharing his position at UPV with a methane remote sensing scientist position at the Environmental Defense Fund. Luis Guanter has been included in Clarivate’s Highly Cited Researchers List of the world’s most influential scientists since 2019. \n\n\n\n \n\n\n\nhttps://luiguapa.webs.upv.es/
URL:https://sciencehub.esa.int/event/science-talk-dr-luis-guanter-2/
LOCATION:ESRIN Science Hub\, Via Galileo Galilei\, 1\, Frascati\, RM\, 00044\, Italy
CATEGORIES:Science Talks
ATTACH;FMTTYPE=image/jpeg:https://sciencehub.esa.int/wp-content/uploads/2024/09/2023-MethSatMission_2800x2100px_01-1.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20240913T160000
DTEND;TZID=Europe/Rome:20240913T170000
DTSTAMP:20261028T141951
CREATED:20240910T105541Z
LAST-MODIFIED:20240910T105758Z
UID:4280-1726243200-1726246800@sciencehub.esa.int
SUMMARY:Improving the reconstruction of upper ocean dynamics from space
DESCRIPTION:Final presentation of research fellow Florian Le Guillou.  \n\n\n\n\n\nAbstract: \n\n\n\nThe use of satellite data has revolutionized the study of upper ocean dynamics\, offering global\, continuous\, and real-time information about various physical processes at the ocean’s surface. These data provide key insights into ocean circulation\, temperature distribution\, wave patterns\, and other dynamic factors. For instance\, Sea Surface Height (SSH)\, observed by altimetry\, is a key variable for monitoring ocean circulation. Similarly\, Sea Surface Temperature (SST) serves as a crucial indicator of heat exchange between the ocean and atmosphere. \n\n\n\nTypically\, scientific\, and operational applications require gap-free\, gridded satellite data (L4 products). However\, operational algorithms often depend on basic interpolation techniques applied to L3 satellite data\, which tend to filter out fine-scale processes. In this presentation\, I will introduce a hybrid methodology which combines minimal physically based constraints with a variational scheme to enhance the mapping capabilities of upper ocean dynamics. By synthesizing multi-modal satellite observations\, the method improves the accuracy and resolution of SSH and SST maps in comparison to operational products. Applications of the method will be discussed\, including the reconstruction of 3D dynamics from surface data\, the refinement of SSH climate records\, and the estimation of air-sea fluxes.
URL:https://sciencehub.esa.int/event/improving-the-reconstruction-of-upper-ocean-dynamics-from-space/
LOCATION:ESRIN Science Hub\, Via Galileo Galilei\, 1\, Frascati\, RM\, 00044\, Italy
CATEGORIES:Science Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20240902T101500
DTEND;TZID=Europe/Rome:20240902T111500
DTSTAMP:20261028T141951
CREATED:20240902T080517Z
LAST-MODIFIED:20260413T144201Z
UID:4243-1725272100-1725275700@sciencehub.esa.int
SUMMARY:Science Talk: Giulia Roccetti
DESCRIPTION:Giulia Roccetti is a PhD student at the Ludwig-Maximilian University of Munch and the European South Observatory. Her presentation at the Science Hub will address one of the topics of her PhD. \n\n\n\nhttps://giulia-roccetti.github.io \n\n\n\nProbing cloud and surface properties in disk-integrated Earth’s observations \n\n\n\nAbstract:  \n\n\n\nEarthshine\, which is the sunlight reflected by the Earth onto the Moon\, allows for the acquisition of disk-integrated properties of the illuminated side of the Earth in a single snapshot. To simulate these observations\, we perform realistic 3D radiative transfer simulations with MYSTIC\, incorporating the full complexity and variability of the planet. To this end\, we developed the first hyperspectral albedo maps dataset for Earth (HAMSTER)\, which includes the spatial and temporal variability of surface features as a function of wavelength. Additionally\, we developed a 3D cloud generator approach to accurately represent patchy clouds based on the ERA5 reanalysis product. Only by including detailed cloud and surface modeling were we able to match the observations\, suggesting that the radiative response of clouds and an accurate surface albedo representation are crucial for a comprehensive interpretation of Earth’s observations. This treatment of cloud and surface properties may have many applications in Earth’s remote sensing and Earth System Models. \n\n\n\n\n\nPresentation slides
URL:https://sciencehub.esa.int/event/science-talk-giulia-rocetti/
LOCATION:ESRIN Science Hub\, Via Galileo Galilei\, 1\, Frascati\, RM\, 00044\, Italy
CATEGORIES:Science Talks
ATTACH;FMTTYPE=image/png:https://sciencehub.esa.int/wp-content/uploads/2024/09/Giulia-Roccetti.png
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20240326T000000
DTEND;TZID=Europe/Rome:20240326T235959
DTSTAMP:20261028T141951
CREATED:20240405T125025Z
LAST-MODIFIED:20240405T132139Z
UID:4070-1711411200-1711497599@sciencehub.esa.int
SUMMARY:Science talk: Southern Ocean Circulation
DESCRIPTION:The Importance of the Southern Ocean
URL:https://sciencehub.esa.int/event/science-talk-southern-ocean-circulation/
LOCATION:ESA-ESRIN\, Via Galielo Galilei\, 1\, Frascati\, 00046\, Italy
CATEGORIES:Science Talks
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