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Start Over Author "Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center (PMOD/WRC)" Publisher edp sciences
4 results on '"Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center (PMOD/WRC)"'

1. Coordination within the remote sensing payload on the Solar Orbiter mission

Author

O. C. St. Cyr, D. Orozco Suárez, Ester Antonucci, Sunil Sidher, Marina Battaglia, Phillip C. Chamberlin, V. Andretta, David Long, Johann Hirzberger, A. Giunta, Silvano Fineschi, N. Bach, Simon Plunkett, C. Watson, B. Mampaey, S. Fahmy, I. Tanco, S. Caminade, Andrei Zhukov, Andreas Lagg, David Berghmans, Joachim Woch, David R. Williams, G. J. Hurford, M. Haberreiter, T. Grundy, Shane A. Maloney, Donald M. Hassler, S. Parenti, J. J. Cerullo, Eric Buchlin, Sami K. Solanki, Federico Landini, A. Pacros, J. Carlyle, A. De Groof, Angelos Vourlidas, V. Martinez-Pillet, J. Lefort, Alexis P. Rouillard, Cis Verbeeck, S. Lodiot, Mats Carlsson, Gianalfredo Nicolini, T. Straus, M. Kolleck, L. Etesi, D. R. McMullin, L. Sanchez, R. A. Howard, J. C. del Toro Iniesta, Daniel Müller, Joseph M. Davila, F. Marliani, Robin C. Colaninno, F. Auchère, Lucia Kleint, A. Philippon, Andrzej Fludra, Luca Teriaca, Louise K. Harra, Udo Schühle, Marco Romoli, William T. Thompson, Holly Gilbert, Maurizio Pancrazzi, Alessandro Bemporad, P. Rochus, Säm Krucker, N. Rich, I. Zouganelis, Hardi Peter, Daniele Spadaro, Thomas Wiegelmann, Science and Technology Facilities Council (UK), Institut d'astrophysique spatiale (IAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Umeå University, Department of Chemistry, Laboratory for Atmospheric and Space Physics [Boulder] (LASP), University of Colorado [Boulder], GSFC Laboratory for Solar and Space Physics, NASA Goddard Space Flight Center (GSFC), European Space Astronomy Centre (ESAC), Agence Spatiale Européenne = European Space Agency (ESA), INAF - Osservatorio Astrofisico di Torino (OATo), Istituto Nazionale di Astrofisica (INAF), Space Science and Technology Department [Didcot] (RAL Space), STFC Rutherford Appleton Laboratory (RAL), Science and Technology Facilities Council (STFC)-Science and Technology Facilities Council (STFC), Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center (PMOD/WRC), Mullard Space Science Laboratory (MSSL), University College of London [London] (UCL), Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, Royal Observatory of Belgium [Brussels] (ROB), Trinity College Dublin, Space Systems Research Corporation (SSRC), European Space Research and Technology Centre (ESTEC), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Universidad de Cantabria [Santander], INAF - Osservatorio Astrofisico di Catania (OACT), University of Kansas [Kansas City], Johns Hopkins University (JHU), Solar-Terrestrial Centre of Excellence [Brussels] (STCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), European Space Agency (ESA), Max-Planck-Institut für Sonnensystemforschung (MPS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Max Planck Institute for Solar System Research (MPS), and European Space Agency (European Space Agency) (ESA)

Subjects
Sun: general, 010504 meteorology & atmospheric sciences, Context (language use), Instrumentation: spectrographs, Instrumentation: polarimeters, 01 natural sciences, law.invention, instruments [Space vehicles], Orbiter, law, 0103 physical sciences, general [Sun], Space vehicles: instruments, spectrographs [Instrumentation], 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Remote sensing, Physics, Earth's orbit, Data processing, polarimeters [Instrumentation], Spacecraft, instruments, instrumentation: polarimeters, instrumentation: spectrographs, telescopes [space vehicles], business.industry, Payload, Suite, Bandwidth (signal processing), Astronomy and Astrophysics, Space and Planetary Science, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Telescopes
Abstract

Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.-- Full list of authors: Auchère, F.; Andretta, V.; Antonucci, E.; Bach, N.; Battaglia, M.; Bemporad, A.; Berghmans, D.; Buchlin, E.; Caminade, S.; Carlsson, M.; Carlyle, J.; Cerullo, J. J.; Chamberlin, P. C.; Colaninno, R. C.; Davila, J. M.; De Groof, A.; Etesi, L.; Fahmy, S.; Fineschi, S.; Fludra, A.; Gilbert, H. R.; Giunta, A.; Grundy, T.; Haberreiter, M.; Harra, L. K.; Hassler, D. M.; Hirzberger, J.; Howard, R. A.; Hurford, G.; Kleint, L.; Kolleck, M.; Krucker, S.; Lagg, A.; Landini, F.; Long, D. M.; Lefort, J.; Lodiot, S.; Mampaey, B.; Maloney, S.; Marliani, F.; Martinez-Pillet, V.; McMullin, D. R.; Müller, D.; Nicolini, G.; Orozco Suarez, D.; Pacros, A.; Pancrazzi, M.; Parenti, S.; Peter, H.; Philippon, A.; Plunkett, S.; Rich, N.; Rochus, P.; Rouillard, A.; Romoli, M.; Sanchez, L.; Schühle, U.; Sidher, S.; Solanki, S. K.; Spadaro, D.; St Cyr, O. C.; Straus, T.; Tanco, I.; Teriaca, L.; Thompson, W. T.; del Toro Iniesta, J. C.; Verbeeck, C.; Vourlidas, A.; Watson, C.; Wiegelmann, T.; Williams, D.; Woch, J.; Zhukov, A. N.; Zouganelis, I., Context. To meet the scientific objectives of the mission, the Solar Orbiter spacecraft carries a suite of in-situ (IS) and remote sensing (RS) instruments designed for joint operations with inter-instrument communication capabilities. Indeed, previous missions have shown that the Sun (imaged by the RS instruments) and the heliosphere (mainly sampled by the IS instruments) should be considered as an integrated system rather than separate entities. Many of the advances expected from Solar Orbiter rely on this synergistic approach between IS and RS measurements. Aims. Many aspects of hardware development, integration, testing, and operations are common to two or more RS instruments. In this paper, we describe the coordination effort initiated from the early mission phases by the Remote Sensing Working Group. We review the scientific goals and challenges, and give an overview of the technical solutions devised to successfully operate these instruments together. Methods. A major constraint for the RS instruments is the limited telemetry (TM) bandwidth of the Solar Orbiter deep-space mission compared to missions in Earth orbit. Hence, many of the strategies developed to maximise the scientific return from these instruments revolve around the optimisation of TM usage, relying for example on onboard autonomy for data processing, compression, and selection for downlink. The planning process itself has been optimised to alleviate the dynamic nature of the targets, and an inter-instrument communication scheme has been implemented which can be used to autonomously alter the observing modes. We also outline the plans for in-flight cross-calibration, which will be essential to the joint data reduction and analysis. Results. The RS instrument package on Solar Orbiter will carry out comprehensive measurements from the solar interior to the inner heliosphere. Thanks to the close coordination between the instrument teams and the European Space Agency, several challenges specific to the RS suite were identified and addressed in a timely manner. © 2020 F. Auchère et al., A. V. is supported by NRL grant N00173-16-1-G029. D. M. L. is grateful to the Science Technology and Facilities Council for the award of an Ernest Rutherford Fellowship (ST/R003246/1).

Published
2020

2. Stereoscopy of extreme UV quiet Sun brightenings observed by Solar Orbiter/EUI

Author

A. N. Zhukov, M. Mierla, F. Auchère, S. Gissot, L. Rodriguez, E. Soubrié, W. T. Thompson, B. Inhester, B. Nicula, P. Antolin, S. Parenti, É. Buchlin, K. Barczynski, C. Verbeeck, E. Kraaikamp, P. J. Smith, K. Stegen, L. Dolla, L. Harra, D. M. Long, U. Schühle, O. Podladchikova, R. Aznar Cuadrado, L. Teriaca, M. Haberreiter, A. C. Katsiyannis, P. Rochus, J.-P. Halain, L. Jacques, D. Berghmans, Solar-Terrestrial Centre of Excellence [Brussels] (STCE), D.V. Skobeltsyn Institute of Nuclear Physics (SINP), Lomonosov Moscow State University (MSU), Institut d'astrophysique spatiale (IAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Royal Observatory of Belgium [Brussels] (ROB), NASA Goddard Space Flight Center (GSFC), Max-Planck-Institut für Sonnensystemforschung (MPS), Max-Planck-Gesellschaft, University of Northumbria at Newcastle [United Kingdom], Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center (PMOD/WRC), and Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich)

Subjects
Physics, 010504 meteorology & atmospheric sciences, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], F300, FOS: Physical sciences, Astronomy and Astrophysics, Stereoscopy, F500, Astrophysics, 01 natural sciences, law.invention, Orbiter, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, law, Extreme ultraviolet, QUIET, 0103 physical sciences, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), 0105 earth and related environmental sciences
Abstract

Context. The three-dimensional fine structure of the solar atmosphere is still not fully understood as most of the available observations are taken from a single vantage point. Aims. The goal of the paper is to study the three-dimensional distribution of the small-scale brightening events (“campfires”) discovered in the extreme-UV quiet Sun by the Extreme Ultraviolet Imager (EUI) aboard Solar Orbiter. Methods. We used a first commissioning data set acquired by the EUI’s High Resolution EUV telescope on 30 May 2020 in the 174 Å passband and we combined it with simultaneous data taken by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory in a similar 171 Å passband. The two-pixel spatial resolution of the two telescopes is 400 km and 880 km, respectively, which is sufficient to identify the campfires in both data sets. The two spacecraft had an angular separation of around 31.5° (essentially in heliographic longitude), which allowed for the three-dimensional reconstruction of the campfire position. These observations represent the first time that stereoscopy was achieved for brightenings at such a small scale. Manual and automatic triangulation methods were used to characterize the campfire data. Results. The height of the campfires is located between 1000 km and 5000 km above the photosphere and we find a good agreement between the manual and automatic methods. The internal structure of campfires is mostly unresolved by AIA; however, for a particularly large campfire, we were able to triangulate a few pixels, which are all in a narrow range between 2500 and 4500 km. Conclusions. We conclude that the low height of EUI campfires suggests that they belong to the previously unresolved fine structure of the transition region and low corona of the quiet Sun. They are probably apexes of small-scale dynamic loops heated internally to coronal temperatures. This work demonstrates that high-resolution stereoscopy of structures in the solar atmosphere has become feasible.

Published
2021

3. Making of a solar spectral irradiance dataset I: observations, uncertainties, and methods

Author

Margit Haberreiter, Matthieu Kretzschmar, Micha Schöll, Thierry Dudok de Wit, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center (PMOD/WRC), European Project: 313188,EC:FP7:SPA,FP7-SPACE-2012-1,SOLID(2012), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES)

Subjects
Atmospheric Science, 010504 meteorology & atmospheric sciences, Computer science, Irradiance, Data analysis, Time series analysis, [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology, lcsh:QC851-999, Solar irradiance, 7. Clean energy, 01 natural sciences, Proxy (climate), 0103 physical sciences, Statistics and probability, Time series, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Remote sensing, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Missing data, Autoregressive model, Solar spectrum, 13. Climate action, Space and Planetary Science, Outlier, Anomaly detection, lcsh:Meteorology. Climatology, Algorithms
Abstract

Context. Changes in the spectral solar irradiance (SSI) are a key driver of the variability of the Earth’s environment, strongly affecting the upper atmosphere, but also impacting climate. However, its measurements have been sparse and of different quality. The “First European Comprehensive Solar Irradiance Data Exploitation project” (SOLID) aims at merging the complete set of European irradiance data, complemented by archive data that include data from non-European missions. Aims. As part of SOLID, we present all available space-based SSI measurements, reference spectra, and relevant proxies in a unified format with regular temporal re-gridding, interpolation, gap-filling as well as associated uncertainty estimations. Methods. We apply a coherent methodology to all available SSI datasets. Our pipeline approach consists of the pre-processing of the data, the interpolation of missing data by utilizing the spectral coherency of SSI, the temporal re-gridding of the data, an instrumental outlier detection routine, and a proxy-based interpolation for missing and flagged values. In particular, to detect instrumental outliers, we combine an autoregressive model with proxy data. We independently estimate the precision and stability of each individual dataset and flag all changes due to processing in an accompanying quality mask. Results. We present a unified database of solar activity records with accompanying meta-data and uncertainties. Conclusions. This dataset can be used for further investigations of the long-term trend of solar activity and the construction of a homogeneous SSI record.

Published
2016

4. Solar irradiance observations with PREMOS filter radiometers on the PICARD mission: In-flight performance and data release

Author

Julian Gröbner, S. Nyeki, Peter Meindl, T. Egorova, Wolfgang Finsterle, Gaël Cessateur, Jean-François Hochedez, Rinat Tagirov, Mustapha Meftah, G. Thuillier, Christoph Wehrli, M. Rouzé, Hansjörg Roth, Alexander Shapiro, Werner Schmutz, Eugene Rozanov, Nigel Fox, Matthieu Kretzschmar, S. Koller, Micha Schöll, M. Haberreiter, Marcel Spescha, Daniel Pfiffner, Lutz Werner, Jules U Wyss, Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center (PMOD/WRC), Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Institute for Atmospheric and Climate Science [Zürich] (IAC), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, STRATO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), National Physical Laboratory [Teddington] (NPL), Physikalisch-Technische Bundesanstalt [Berlin] (PTB), Centre National d'Études Spatiales [Toulouse] (CNES), European Community’s Seventh Framework Programme (FP7/2007-2013), CNES/PICARD GI programme, European Project: 313188,EC:FP7:SPA,FP7-SPACE-2012-1,SOLID(2012), European Project: 284461,EC:FP7:SPA,FP7-SPACE-2011-1,EHEROES(2012), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National d’Études Spatiales [Paris] (CNES), and Max-Planck-Institut für Sonnensystemforschung (MPS)

Subjects
010504 meteorology & atmospheric sciences, Meteorology, Infrared, Solar activity, Irradiance, Venus, Radiation, Solar irradiance, 01 natural sciences, 7. Clean energy, Instrumentation: photometers, UV radiation, 0103 physical sciences, Solar radiation, Solstice, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Remote sensing, Physics, Radiometer, biology, Spacecraft, business.industry, Astronomy and Astrophysics, biology.organism_classification, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], 13. Climate action, Space and Planetary Science, Solar-terrestrial relations, business
Abstract

International audience; The PREcision Monitoring Sensor (PREMOS) is a solar radiometer on board the French PICARD mission that was launched in June 2010 and decommissioned in April 2014.Aims. The PREMOS radiometer obtains solar irradiance measurements in specific spectral windows in the UV, visible, and near- infrared. In this paper, the PREMOS data and calibration methods are presented.Methods. Using back-up channels, the degradation can theoretically be assessed to correct operational channels. However, a strong degradation within all PREMOS channels requires the application of additional methods, namely using back-up channels and assess- ing the degradation via a proxy-based model.Results. The corrected Level 3 PREMOS data are then used in different contexts in order to be validated. First, the signature of the p-mode are retrieved from the PREMOS data. The Venus transit allows us to empirically determine the intrinsic noise level within the PREMOS high cadence data for the visible and near-infrared channels. We then compare the PREMOS data directly to other data sets, namely from the SOLar-STellar Irradiance Comparison Experiment (SOLSTICE) and the Solar Irradiance Monitor (SIM) instru- ments on board the SOlar Radiation and Climate Experiment (SORCE) spacecraft. Regarding the UV channels, we found an excellent correlation over the lifetime of the PREMOS mission. The ratio between SORCE and PREMOS observations is always less than 1%. Regarding the SSI measurements in the visible and near-infrared, a comparison of short-term variations (i.e. 27-day modulation) shows a rather good correlation by taking into consideration the intrinsic noise within both SIM and PREMOS observations.

Published
2016

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