Category: Meteoc projects

Bridging data gaps, so plans may be targeted, context-specific, and impactful – so better serve people at the frontlines of climate change Interviews with experienced practitioners highlighted a shortfall of suitably representative data of reliable quality is limiting effective implementation of adaptation and resilience projects, particularly at local levels and in developing nations. What’s more, as reported today/this week in the paper ‘Examining Adaptation and Resilience Frameworks: Data quality’s role in supporting climate efforts’ published in Sustainability Journal, no common approach or tool is available to help these experts streamline the process of designing, monitoring, and evaluating such plans. The experts interviewed for the paper cited a lack of measurement indicators that might otherwise help assess the effectiveness of adaptation and …

The role of data quality for supporting climate Adaptation and Resilience Frameworks – policy paper published in Sustainability Journal Read More »

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Marking the culmination of twelve years continuous research under the Metrology for Earth Observation and Climate brand, at the MetEOC-4 Month 36 meeting, on 4 and 5 July 2023 Nigel Fox, the project series coordinator, said, “This is, in a sense, an end of an era and I personally want to thank everybody who’s been with us for the journey and those who have joined part way along, or been In and out for bits of it.”  “And while there may be a MetEOC-5, in some form, that can only be after a gap, so this marks the end of the continuous series of MetEOC projects. I want to thank everybody who’s been with us for the journey.”   “Thank you for your …

Month 36 Meeting at NPL Teddington : MetEOC has come a long way in twelve years, producing impacts significant and ongoing  Read More »

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A primary objective of MetEOC is to facilitate the take up of the technology and measurement infrastructure developed in the project by the measurement supply chain, an example of which is recounted in the case study, hosted in a new section of this website, ‘Calibration of the CNES and UKSA MicroCarb optical instrument’.  As described, a satellite-based validation method will be essential for ensuring long-term trust in the global emission reporting system used to track progress towards the goals of the 2015 Paris Climate Change Agreement. Indeed, in December of that year, the MicroCarb micro-satellite concept was presented at the Paris Climate Change Conference (COP21) with a mission to map, on a global scale, sources and sinks of carbon dioxide (CO2), …

MetEOC Case study: Calibration of the CNES/UKSA MicroCarb GHG monitoring satellite sensor Read More »

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The last few months are seen something of a flurry of papers related to MetEOC-4 published in peer-reviewed journals, each featuring innovative and impactful outcomes we encourage you to view and download. Four papers have been published so far this year out of a total of 15 to date. In addition, ahead of publication, the paper Traceability of surface longwave irradiance measurements to SI using the IRIS radiometers is available as a pre-print for rapid dissemination. Accessible papers freely viewable online are tabulated below. Dive in!   Lead author Title Journal Publication date Veronica Escober Ruiz A novel C-band radar-drone for forest canopy profile characterization International Journal of Remote Sensing 21 April 2023 Ilaria Cazzaniga AERONET-OC LWN uncertainties: revisited Journal of Atmospheric and …

Round-up of recently published papers authored by MetEOC-4 participants Read More »

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A year on from its initial public release, the NPL-developed CoMet toolkit has been used in several earth observation projects, including MetEOC, and recognised for the value it offers to the earth observation community. Environmental observations made by satellites and in-situ measurement networks provide data that forms the basis of scientific understanding of the state of the climate. Such datasets need to contain information about the associated uncertainties to be accepted as credible and reliable — the handling of which can be a complex and, potentially, error-prone process. Moreover, as multiple measurements are typically combined through processing chains, reliably handling this information can seem overly time-consuming for non-specialists.   A simpler way to store and propagate uncertainty and error-correlation information Metrological …

Reliable and user-friendly handling of earth observation uncertainty data with CoMet Toolkit Read More »

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Long term operation of network supporting the validation of satellite ocean colour observations contributing to the quantification of these natural ‘sinks’ of carbon. Marking the twentieth anniversary of the Ocean Colour component of the Aerosol Robotic Network (AERONET-OC), Frédéric Mélin, of MetEOC-4 External Funded Partner JRC, summarises ‘fruitful encounters’ between the AERONET-OC ocean colour network and MetEOC projects. But first, some background. An objective of the MetEOC series of projects is to develop satellite derived SI-traceable measurement methods to measure greenhouse gases emissions and carbon sinks. The context for that requirement is that knowledge of the amounts of greenhouse gases absorbed by such sinks will be a critical part of the equation for any workable net zero strategy. Currently, the earth’s oceans …

Guest post: Twenty years of AERONET-OC provision of ocean colour calibration and validation data Read More »

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Following a successful review by the European Space Agency, on 30 November 2022 the SHIPAS temperature measuring instrument developed by Research Centre Jülich and Wuppertal University, Germany was given the go-ahead to be included onboard a satellite scheduled to be launched into earth orbit in 2025. The high-resolution imaging instrument is capable of accurately measuring the temperature of the mesosphere and lower thermosphere, which are layers of the atmosphere sensitive to greenhouse gas concentrations and early indicators of global heating trends. Support for the mission is provided by the EU Horizon 2020 In-Orbit Demonstration and Validation (IOD/IOV) initiative, set up to test new technologies in orbit.  Approval means the SHIPAS instrument, which stands for Spatial Heterodyne Interferometer Performance Assessment in Space, …

SHIPAS satellite-based climate sensor developed with support from MetEOC projects approved for in-orbit testing Read More »

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Three quarters through EMPIR MetEOC-4, the first in-person meeting during the project on 15 & 16 December at PTB, Berlin, proved a valuable and timely opportunity for the whole project team to share progress face-to-face. As well as presenting updates on developing metrological tools and likely uptake, the team also got the chance to view, up close, impressive new hardware in PTB’s historic basement labs. This fourth in the series of Metrology for Earth Observation and Climate (MetEOC) EMPIR projects — that supports climate observation communities by improving understanding of the drivers of climate change — was hosted at the birthplace of quantised thermal radiation physics. Indeed, PTB showed off hardware developed in the project, including a new type of lightweight …

MetEOC-4 month 27 progress meeting: a warm welcome from PTB over two cold days in Berlin Read More »

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New evidence suggests assumptions of tree size-to-mass scale-invariance is not well-justified for this kind of forest, which has wider implications for climate mitigation actions. UK forests could store almost double the amount of carbon than previous calculations suggest, with consequences for the understanding of carbon stocks and climate actions, according to a paper published today based on data produced in MetEOC. The paper, Laser scanning reveals potential underestimation of biomass carbon in temperate forest, published in the journal Ecological Solutions and Evidence presents new empirical evidence showing that the fundamental assumption of tree size-to-mass scale-invariance is not well-justified for this kind of forest. The article goes on to suggest that testing the underlying assumptions of allometric models more generally is an urgent priority …

Laser scanning reveals underestimation of above-ground biomass in Wytham Woods test site Read More »

Implementing policies designed to fulfil Paris Agreement commitments will likely involve conspicuous demands for clear accountability for how decisions will be made. Such accountability will, in turn, demand a high bar for trustworthiness of data used as the basis of decisions. So, how can we be sure trusted climate data will be available in time to make a difference? In his opening address at COP27 in Sharm el-Sheikh on 6 November, UN Climate Change Executive Secretary Simon Stiell asked governments to focus on a transformational shift to implementing the Paris Agreement and putting negotiations into concrete actions. With a call to action for principles of transparency and accountability to apply throughout the process, Mr Stiell added, “COP27 sets out a new …

Software to harmonise fundamental climate data records Read More »

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Task 3.1 within Theme 3 ‘Validating Carbon stocktake: GHG emissions and biosphere’ of MetEOC-4 is applying robust metrological methods developed in previous studies to address satellite-derived measures of atmospheric greenhouse gas concentrations. In this update, we outline details of some of the groundwork involved in validating gas monitoring capabilities and sensor interoperability for coming earth observation missions. While the main driver of changes in atmospheric greenhouse gases (GHGs) over the past 200 years relate to direct emissions, the accumulation of these gases in the atmosphere has also been influenced by natural biological and chemical processes that cause ecosystems to act as net carbon sources or sinks. A carbon sink is anything, natural or otherwise, that accumulates and stores carbon-containing chemical compounds …

Validating greenhouse gas monitoring capabilities and satellite sensor interoperability Read More »

The Eradiate radiative transfer model, designed during the MetEOC-3 project, was subsequently funded for development by the European Space Agency, and a first public release issued in the Spring of 2022. This calibration/validation-oriented model, aiming at high accuracy, is a European contribution towards bringing metrology to space applications. MetEOC-3 supported the design of a new radiative transfer model to enable calibration/validation activities in remote sensing. This activity, described in a January 2019 update, produced input for developing the Eradiate radiative transfer model, which since March 2019 has been funded by the European Commission through the Copernicus programme, under the supervision of the European Space Agency. Accurate radiative transfer simulation, without the headaches The first development phase of Eradiate concluded in April …

Rayference helps bring metrology to Earth observation applications with its Eradiate 3D radiative transfer simulation software Read More »

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Marking a halfway reporting milestone, on 14 September 2022 EURAMET published its MetEOC-4 Publishable Summary that highlights significant recent progress made toward the long-term objective of the MetEOC series: development of an SI-traceable climate observation system. As with preceding projects in this series, MetEOC-4 encompasses a diverse range of research activities, structured according to four themes matching a set of predefined objectives. It continues existing, and initiates new, lines of research, developing tools, methods, and infrastructure capable of assigning metrologically (SI) traceable uncertainties to data products derived from Earth Observations, with a focus on climate change. More than half of the 54 atmosphere, land, and ocean Essential Climate Variables (ECVs) rely on measurements from space. These are physical, chemical, biological, or …

Roundup of progress in first eighteen months of MetEOC-4 Read More »

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Very good agreement shown for irradiance measurements made by novel lightweight Hemispherical Blackbody infrared reference developed in MetEOC projects when compared to reference Tilted Bottom Cavity BB2007 instrument of PMOD/WRC.  Presented as an ePoster on Thursday 25 November 2021 at the the European Space Agency ATMOS-2021 conference, Blackbody Comparison Measurements for Improved Traceability of Longwave Downward Radiation Measurements (ID: 174), by Moritz Feierabend1, Julian Gröbner2, Max Reiniger1, Christian Monte1. —- Understanding climate change starts with understanding the greenhouse effect. This in turn requires knowledge about the infrared radiation that reaches the ground from the atmosphere – the so-called longwave downward radiation. Data on longwave downward radiation is being constantly collected by means of specific infrared detectors found at multiple stations around the globe. To …

Blackbody Comparison Makes Infrared Radiation Measurements of the Atmosphere More Reliable Read More »

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The MetEOC-2 partners have produced the third MetEOC-2 newsletter detailing some of the activities undertaken in 2017 within the MetEOC-2 programme.

The Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) is a German airborne imaging FTS (Fourier Transform Spectrometer) capable of operating on various airborne platforms for sensing dynamics and chemistry of the UTLS (Upper Troposphere and Lower Stratosphere) region. The instrument is a joint development of the research centers KIT (Karlsruher Institut für Technologie) and the Forschungszentrum (Research Center) Jülich. The University of Wuppertal is also a partner in the project. GLORIA uses a two-dimensional detector array for infrared limb-observations. The GLORIA in-flight calibration system consists of two identical large-area high-precision blackbodies, which are independently controlled at two different temperatures. Thermo-Electric Coolers are used to control the temperature of the blackbodies. As reported in the paper (paywall), the system …

In-flight blackbody calibration sources for the GLORIA interferometer paper published Read More »

The first year of the project has focused on the development of instrumentation for laboratory and field based measurements, as well as for the SI uncertainty assessment of radiative transfer algorithms

G. Zibordi, K. Ruddick, I. Ansko, G. Moore, S. Kratzer, J. Icely, and A. Reinart of JRC had their paper In situ determination of the remote sensing reflectance: an inter-comparison published on 6 August 2012 in Ocean Sciences magazine. Koppmann, R., F. Olschewski, P. Steffens, C. Rolf, P. Preusse, A. Ebersoldt, F. Friedl-Vallon, A. Kleinert, C. Piesch, J. Hollandt, B. Gutschwager and C. Monte of PTB and BUW presented the paper  at the International Radiation Symposium this month in Berlin, Germany. The paper summarises results from a radiometric inter-comparison performed in the northern Adriatic Sea with the main objective of evaluating the agreement of in situ spectral remote sensing reflectance products determined through the application of independent measurement systems and methods. The …

MetEOC-1 partner JRC paper on inter-comparison of in situ data products for in- and above-water optical systems published in Ocean Sciences Read More »

Preview of subscription content: Tools and methodologies for reducing uncertainties in climate change knowledge are now available, but it is disputed to what extent increased confidence in data will lead to increased action on carbon emissions. Published: Nature 27 July 2012 Measurement challenges

PTB reports on the spectral radiance, radiance temperature and emissivity measurements by instrumentation for radiation thermometry and emissivity measurement under vacuum and in a liquid nitrogen cooled environment at its Reduced Background Calibration Facility (RBCF), for the Ninth International Temperature Symposium. AIP Conference Proceedings (restricted access): C. Monte, B. Gutschwager, A. Adibekyan, M. Kehrt, F. Olschewski, J. Hollandt of PTB and BUW present ‘Radiation thermometry for remote sensing at PTB‘ at the Ninth International Temperature Symposium. PTB is extending, improving and characterising its Reduced Background Calibration Facility in MetEOC.

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