Scientific Observations Research Articles

Integrating plasmasphere, ionosphere and thermosphere observations and models into a standardised open access research environment: The PITHIA-NRF international project

The PITHIA-NRF project “Plasmasphere Ionosphere Thermosphere Integrated Research Environment and Access services: a Network of Research Facilities” aims at building a European distributed network that integrates observations from space and ground, data processing tools and models to support scientific research on the Plasmasphere-Ionosphere-Thermosphere system. PITHIA-NRF is designed to provide formalised open access to experimental facilities, data and models, standardised data products, and training services. Participating organisations that operate these facilities, formed twelve nodes in eleven European countries. These nodes work on optimising their observing facilities and offer trans-national access to scientists and engineers. The PITHIA-NRF e-Science Centre is a core element of the project. Its design and evolution are controlled by a systematic ontology which governs the collection of scientific observations and research models, jointly termed data collections, which are registered with the e-Science Centre. Several tens of data collections are being registered. Data collection registrations adhere to FAIR principles and transparent quality measures to a large extent. The e-Science Centre facilitates the execution of research projects proposed by researchers from inside and outside the PITHIA-NRF consortium which require trans-national access to and understanding of data collections (observations and models) residing at one or several PITHIA-NRF nodes. Upon completion of the project a comprehensive collection of observations and models will have been gathered by the e-Science Centre for the benefit of efficient scientific research which relies on Europe-wide collaboration.

Climate change in the Greater Lomé health region: Perceptions of impacts on health systems

Climate change is occurring more quickly and has more complex effects than expected. The well-being of populations in general and financial resources have been impacted by climate change in recent years. Children, pregnant women and the elderly bear the brunt of the impacts caused by climate-related risks. This research aims to assess the perceptions of health personnel and clients on climate change as well as these impacts in the Greater Lomé health region in Togo. Furthermore, this research examines the differences between the perceptions of caregivers, patients and scientific observations in this area. Based on field observations, an interview guide and a questionnaire, the information collected shows that nearly 75.95% of those questioned perceived climate change, particularly in the form of an increase in precipitation concentrated on a cost duration causing floods and the scarcity of rain at the end of the year leading to droughts. More than 25.40% and 61.86% respectively perceive that droughts and floods impact their livelihoods, but do not fully understand the causes. The results are useful for planning useful actions to facilitate the management of climate-related risks in health establishments in the Greater Lomé health region. It is therefore important to carry out awareness campaigns, train stakeholders and take necessary measures to make health systems resilient.

Pandit Srinivasa Narayana Iyengar: A pioneer who revived Ayurveda in the Tamil region and advocated for the combined recognition of Ayurveda and Siddha

Abstract The study explores the life and multifaceted contributions of Pandit Srinivasa Narayana Iyengar, a key figure in the revival movement of Ayurveda during Colonial India. Iyengar dedicated his life to the practice of Ayurveda, emphasizing charitable services and contributing to the propagation of Ayurvedic principles. The monthly Ayurvedic medical journal, Vaidya Chandrika, initiated by him, helped in fostering communication between Sanskrit and Tamil-speaking physicians. Other noteworthy endeavors include establishing dispensaries, raw drug stores, and pharmacies for manufacturing medicines. In addition to his active involvement in sociopolitical spheres, Iyengar resisted Western medical dominance, opposing the linguistic and regional divisions within Ayurveda and Siddha. His principles emphasized scientific thinking, observation, and public awareness for the revival of Ayurveda. This article aims to shed light on the invaluable contributions of Pandit S. Narayana Iyengar in professionalizing Ayurvedic practice and encouraging an integrated medical system in Tamil Nadu during a crucial period in history.

THE MEANING OF TAKSU IN HINDU SOCIETY

Globalization and modernization affect the lives of the Hindu community in Denpasar City, especially in the aspect of the Hindu religion. The cultural traditions of Balinese society hold many mysterious things. One of them is the conception of taksu, which is believed by many Balinese people in general, and Denpasar people in particular, to be the peak energy or spiritual power that is really needed in various aspects of socio-religious life, including Balinese artistic life. So that the taksu conception can be useful for artists (pregina) in producing quality and stunning works of art, it is important to look for the implied meaning behind the taksu conception. Based on this, it is necessary to reconstruct divine teachings (theology) through research on the meaning of taksu, especially taksu pregina (artists) in Hindu society in Denpasar City. Based on this description, this research discusses the meaning of taksu in Hindu society in Denpasar City, Hindu Theological Studies. The aim of this research is to find out, explain and analyze the meaning of taksu in Hindu society in Denpasar City. The theory used in analyzing the problem formulation in this research is symbol theory. This research uses scientific methods, literature study, observation and interviews. The meaning of taksu found in fulfilling the spiritual needs of the Hindu community in Denpasar City is: (1) the religious meaning as a symbol of all artists' activities (pregina) to build and awaken the power of taksu which is classified as a religious activity, (2) the meaning of bhakti as a symbol of all artists' activities (pregina) to build and awaken the power of taksu carried out with a sense of devotion as a form of offering to God, (3) aesthetic meaning as a symbol of all the artist's activities (pregina) to build and awaken the power of taksu is very full of aesthetic values originating from religion Hinduism (4) means respecting time as a symbol that time is a very valuable thing, a blessing and gift from God given to every human being. , and (5) the meaning of work professionalism as a symbol for humans to work in their profession (gina) in accordance with the talents (guna) they have had since birth.

Linearity Assessment from the Plankton, Aerosol, Cloud, and Ocean Ecosystem Ocean Color Instrument Pre-Launch Testing and On-Orbit Operations

Satellite observations have become increasingly important in scientific studies of the Earth’s climate, especially for oceanographic science. A next generation sensor known as the Ocean Color Instrument (OCI) was launched in February 2024 onboard the Plankton, Aerosol, Cloud, and ocean Ecosystem (PACE) platform, and will extend the data set of on-orbit scientific observations used for ocean and atmospheric science research. Delivering high quality data from a space-borne sensor requires the instrument to be well calibrated; while much of the calibration can be performed on-orbit, some aspects of the calibration must be measured or the mechanisms verified pre-launch. One aspect of the OCI calibration that is novel to its design (for a space-based sensor) is its ability to perform linearity measurements on orbit. When viewing the Sun reflected off a dim diffuser with ∼2–3% reflectance, the sensor is capable of recording successive pixels with increasing integration times. The result is a series of light levels measured from the same source in a given scan line. These measurements are then used to assess the linearity. During the pre-launch test campaign, this mechanism was verified using a known source in the Earth view portion of the scan. Results from these tests form a baseline that was verified once on-orbit (and the calibration may be replaced if the linearity is shown to change). The linearity measured both prior to launch and post-launch will be assessed in this work.

Analisis Perlindungan Hukum Terhadap Anak Korban Kekerasan Seksual di Dinas Pemberdayaan Perempuan dan Perlindungan Anak Kota Tanjungbalai

The aim of this research is to find out how the Office of Women's Empowerment and Child Protection has attempted to implement legal protection in accordance with Law Number 35 of 2014 concerning Amendments to Law Number 23 of 2002 concerning Child Protection against cases of sexual violence against children, as well as to find out efforts made by the Tanjung Balai City Women's Empowerment and Child Protection Service to help child victims of sexual violence. This research was conducted at the Women's Empowerment and Child Protection Service in Tanjungbalai City, North Sumatra. The method used in this research is a qualitative descriptive research method. The qualitative descriptive method has the main characteristics, namely conducting research involving direct involvement in the field, acting as an observer, creating categories of actors, observing phenomena, recording them in an observation book, not manipulating variables, and focusing on scientific observation. The data collection technique used to obtain data is through interviews and documentation. The results of this research found that the efforts of the Tanjung Balai City Women's Empowerment and Child Protection Department have been running optimally, in accordance with Law Number 35 of 2014 concerning Amendments to Law Number 23 of 2002 concerning Child Protection against cases of sexual violence against children. The form of legal protection used is in the form of preventive and repressive legal protection. One of the programs being implemented is synchronizing and coordinating the prevention of violence against children, which is expected to reduce the number of cases of sexual violence against children in Tajung Balai City.

STEM-Project based Learning in Physics Concept of Measurement to Enhance High School Students' Scientific Literacy

Students' scientific literacy in understanding physics concepts still needs to improve. This study aims to determine scientific literacy using STEM Project-based Learning (PjBL) in learning physics, especially measurement concepts. The study used the Classroom Action Research (CAR) method with the Kemmis and McTaggart model, including planning, acting, observing, and reflecting. The subjects were students in the tenth grade of SMA Negeri 8 Yogyakarta for the 2023/2024 academic year, consisting of 33 students. The data collection techniques and instruments used a written test with three questions describing scientific literacy, observation, and documentation. STEM-PjBL through project activities carried out in two learning cycles. In the first cycle, the teacher implemented a project for making posters regarding measuring instrument specifications, while in the second cycle, there was a project for making miniature measuring instruments. After the first cycle, students' scientific literacy increased to 0.48 with a moderate category. In the second cycle, it increased to 0.68. Using STEM-PjBL is thought to have just a modest improvement. These results underline the potential of STEM-PjBL as a fundamental teaching tool to improve students' scientific literacy as they show how well it fosters a strong awareness of physics ideas. Future studies could examine the effects of STEM-PjBL on more scientific ideas or within varied educational environments.

DiScO: novel rapid systems mapping to inform digital transformation of health systems.

Global health systems are confronting challenges that intersect climate change with evolving communicable and non-communicable public health risks. Addressing these challenges requires systems integration via citizen big data that exist outside health systems. However, systems integration across jurisdictions is a complex challenge that requires stakeholder input. This study's purpose was to conduct rapid systems mapping with international health system stakeholders to inform the development and implementation of a global digital citizen science observatory (DiScO), which aims to catalyze digital transformation of health systems across jurisdictions. A rapid qualitative systems mapping study was conducted during the International Society for Behavioral Nutrition and Physical Activity Annual Global Summit in Uppsala, Sweden, in June 2023. The choice of the venue and approach was informed by three key criteria: (1) Established evidence linking physical activity and nutrition with non-communicable diseases; (2) Concrete existing methods of obtaining citizen big data by physical activity and nutrition researchers; (3) Precedence of physical activity and nutrition researchers conducting citizen science as well behavioral/clinical big data collection. The design of this study was an innovative pre-post systems map development, which consisted of (1) real-time rapid systems mapping (pre/initial map) by engaging with international stakeholders and (2) adjustment of the real-time systems map (post/final map) after analyzing stakeholder discussion data. Rapid systems mapping resulted in a complex network that included key themes to successfully develop and implement DiScO: priorities, opportunities, risks, challenges, partnerships, and resources. Additionally, a new theme emerged organically through stakeholder group discussions - mitigation strategies. The adapted rapid systems map (i.e., after data analyses) depicts 23 key nodes of intervention across the seven key themes. Rapid systems mapping at international symposia is a novel methodological approach to capture stakeholder input, particularly to understand complexity across international jurisdictions - an approach that can be replicated across disciplines and sectors to inform digital transformation of health systems. The development and implementation of DiScO, a platform for decentralization and democratization of technology, will take into consideration all the key nodes of intervention identified in the rapid systems map to promote digital health for equity across global jurisdictions.

Comparing local people’s perceptions of climate change and drought with scientific observations in the lower Mekong Basin: a case study in Dak Lak province, Vietnam

Comparing local people’s perceptions of climate change and drought with scientific observations in the lower Mekong Basin: a case study in Dak Lak province, Vietnam

Measurement Campaign of Radio Frequency Interference in a Portion of the C-Band (4-5.8 GHz) for the Sardinia Radio Telescope.

Radio frequency interference (RFI) analysis is crucial for ensuring the proper functioning of a radio telescope and the quality of astronomical observations, as human-generated interference can compromise scientific data collection. The aim of this study is to present the results of an RFI measurement campaign in the frequency range of 4-5.8 GHz, a portion of the well-known C-band, for the Sardinia Radio Telescope (SRT), conducted in October-November 2023. In fact, this Italian telescope, managed by the Astronomical Observatory of Cagliari (OAC), a branch of the Italian National Institute for Astrophysics (INAF), was recently equipped with a new C-band receiver that operates from 4.2 GHz to 5.6 GHz. The measurements were carried out at three strategically chosen locations around the telescope using the INAF mobile laboratory, providing comprehensive coverage of all possible antenna pointing directions. The results revealed several sources of RFI, including emissions from radar, terrestrial and satellite communications, and wireless transmissions. Characterizing these sources and assessing their frequency band occupation are essential for understanding the impact of RFI on scientific observations. This work provides a significant contribution to astronomers who will use the SRT for scientific observations, offering a suggestion for the development of mitigation strategies and safeguarding the radio astronomical environment for future observational campaigns.

ALMACAL

The ALMACAL survey is based on a database of reprocessed ALMA calibration scans suitable for scientific analysis, observed as part of regular PI observations. We present all the data accumulated from the start of ALMA operations until May 2022 for 1047 calibrator fields across the southern sky spanning ALMA Bands 3 to 10 (∼84 − 950 GHz), so-called ALMACAL−22. Encompassing over 1000 square arcmin and accumulating over 2000 hours of integration time, ALMACAL is not only one of the largest ALMA surveys to date, but it continues to grow with each new scientific observation. We outline the methods for processing and imaging a subset of the highest-quality data (‘pruned sample’). Using deconvolution techniques within the visibility data (uv plane), we created data cubes as the final product for further scientific analysis. We describe the properties and shortcomings of ALMACAL and compare its area and sensitivity with other sub-millimetre surveys. Notably, ALMACAL overcomes limitations of previous sub-millimetre surveys, such as small sky coverage and the effects of cosmic variance. Moreover, we discuss the improvements introduced by the latest version of this dataset that will enhance our understanding of dusty star-forming galaxies, extragalactic absorption lines, active galactic nucleus physics, and ultimately the evolution of molecular gas.

YOLO-CIANNA: Galaxy detection with deep learning in radio data

Context. The upcoming Square Kilometer Array (SKA) will set a new standard regarding data volume generated by an astronomical instrument, which is likely to challenge widely adopted data-analysis tools that scale inadequately with the data size. Aims. The aim of this study is to develop a new source detection and characterization method for massive radio astronomical datasets based on modern deep-learning object detection techniques. For this, we seek to identify the specific strengths and weaknesses of this type of approach when applied to astronomical data. Methods. We introduce YOLO-CIANNA, a highly customized deep-learning object detector designed specifically for astronomical datasets. In this paper, we present the method and describe all the elements introduced to address the specific challenges of radio astronomical images. We then demonstrate the capabilities of this method by applying it to simulated 2D continuum images from the SKA observatory Science Data Challenge 1 (SDC1) dataset. Results. Using the SDC1 metric, we improve the challenge-winning score by +139% and the score of the only other post-challenge participation by +61%. Our catalog has a detection purity of 94% while detecting 40–60% more sources than previous top-score results, and exhibits strong characterization accuracy. The trained model can also be forced to reach 99% purity in post-process and still detect 10–30% more sources than the other top-score methods. It is also computationally efficient, with a peak prediction speed of 500 images of 512×512 pixels per second on a single GPU. Conclusions. YOLO-CIANNA achieves state-of-the-art detection and characterization results on the simulated SDC1 dataset and is expected to transfer well to observational data from SKA precursors.

Teacher Observation Skills Scale: Validity and Reliability

The present research aims to develop a valid and reliable instrument to measure teacher observation skills. The research was conducted during the 2023-2024 academic year with a total of 648 teachers. Data were collected through online survey methods. Expert opinion was consulted for the content and face validity of the scale in the research. Exploratory (EFA) and Confirmatory Factor (CFA) analyses were performed to assess the construct validity of the scale. Based on the results, it was found that the scale had a structure consisting of two dimensions and 18 items. It was determined that the factor loadings of the items in the scale were between .70 and .93. Considering the relevant literature, it was decided to name these dimensions as "natural observation skill" (NOS) and "scientific observation skill" (SOS). The Cronbach Alpha for the scales were both .95. As a result of the research, a valid and reliable scale that can determine the level of teachers' observation skills was developed.

CUSTR- A VHF phased array radar for observation of atmospheric dynamics and ionospheric plasma irregularities

A VHF phased array radar for atmospheric dynamics observation is installed at the University of Calcutta, Kolkata. The Calcutta University Stratosphere-Troposphere Radar (CUSTR) operates at 53 MHz with 475 three sub-element Yagi-Uda antenna array. The CUSTR system is a high-power fully active phased array system with a dedicated 2 kW solid-state Transmit-Receiver Module (TRM) attached to each antenna, providing a total peak power of 950 kW with 47.5 kW average power at 5% maximum duty ratio. The system provides electronic beam steering capability to steer the beam 360° in azimuth direction with a maximum off-zenith angle of 40°. The array is configured with 25 sub-arrays and operates either in a combined mode in Doppler Beam Swinging or in Spaced Antenna mode using a multi-channel digital receiver system. The TRM has been designed to provide a very short pulse of 0.5 µs and a long pulse of 128 µs. The system description along with the initial scientific observations such as atmospheric boundary layer, troposphere-lower stratosphere wind measurements along with preliminary wind validation, mesosphere echoes and ionosphere irregularities are presented.

Довкіллєве правосуддя в Україні та світі

The article is devoted to the study of domestic and foreign trends in environmental justice. To solve the set goal, the following research methods were used, in particular: the method of scientific observation is to form the topic and purpose of the research; comparative legal method in the study of foreign experience of environmental justice; logical method – for theoretical generalization and formulation of research conclusions. The main models of environmental justice that exist in the world include such as consideration of environmental cases by courts of general jurisdiction, consideration of environmental cases by judges specializing in environmental issues or specialized environmental divisions of courts, consideration of environmental cases by specialized environmental courts. Environmental courts, as specialized judicial authorities, deal with the resolution of environmental conflicts and the protection of the environment and function in particular in countries that are members of the European Union, such as Sweden and Austria. In Ukraine, environmental justice is carried out in the form of civil, economic, administrative and criminal proceedings. At the same time, civil, economic, administrative and criminal cases in the environmental sphere differ among themselves in terms of the type of offense, the subject of the dispute, the composition of subjects, etc. Judicial practice in the environmental sphere covers a wide range of environmental relations, in particular on atmospheric air protection, land protection and use of land resources, subsoil protection and use of minerals, protection of forests and use of forest resources, protection and use of territories and objects of the nature reserve fund, access to environmental information, waste management, etc. Environmental justice in Ukraine may be limited to the functioning of certain specialized environmental units in courts, or involve the formation of a system of specialized environmental courts throughout the country, including a higher specialized court. At the same time, the implementation of environmental justice will be more or less time-consuming and costly (depending on the model chosen for implementation).

Closeby Habitable Exoplanet Survey (CHES). II. An Observation Strategy for the Target Stars

The Closeby Habitable Exoplanet Survey (CHES) constitutes a mission intricately designed to systematically survey approximately 100 solar-type stars located within the immediate proximity of the solar system, specifically within a range of 10 pc. The core objective of this mission is the detection and characterization of potentially habitable Earth-like planets or super-Earths within the habitable zone of these stars. The CHES mission obtains high-precision astrometric measurements of planets orbiting the target stars by observing angular distance variations between the target star and reference stars. As a result, we surveyed the relevant parameters of both target and reference stars in detail, conducting a thorough analysis and calculation of the required observation accuracy, the number of observations, and the priority assigned to each target star. Observational emphasis will be concentrated on targets considered of higher priority, ensuring the effectiveness of their observation capabilities. Through this approach, we formulate a 5 yr observation strategy that will cover all the target stars within a 6 month time frame. The strategy not only fulfills the required observing capability but also exhibits high efficiency simultaneously, providing an executable program for future mission. Over the span of the mission’s 5 yr duration, a cumulative observation time of 29,220 hr will be available. Approximately 86% of this, totaling 25,120 hr, is allocated for the observation of target stars. This allocation leaves approximately 4100 hr for extended scientific observation programs. We have also performed simulated observations based on this strategy and verified its observational capability for exoplanets.

Algologies: an artistic exploration of the entangled relationship between seaweed, women and science through a BioArt methodology

ABSTRACT This paper describes the “Algologies” project, an art project about seaweed exploring the entangled relationships between seaweed, women and science. The project was created in 2021, during the COVID-19 Pandemic, through the Living Coast Art Residency awarded by Fabrica Gallery and The Living Coast UNESCO World Biosphere and the coastline to the East of Brighton. The project plays with the Victorian word algology which used to mean the study of seaweed and its contemporary meaning as the study and medical treatment of pain and highlights the calming nature of the coastal environment during a time of collective global trauma. The “Algologies” project drew links between Victorian seaweed collectors, the use of seaweed-based agar jelly in contemporary biology, and seaweed growth as a barometer of climate change and the environment as well as a strategy for carbon capture. The transdisciplinary project fused fine art, performance and BioArt techniques with biohacking and DIY science, as well as digital technologies and resulted in a series of outputs including a public sculpture. Central to “Algologies” was the examination of the historical role of women in seaweed collection and scientific observation. In Victorian Britain, where patriarchal norms prevailed, women were often relegated to domestic roles but found opportunities for scientific engagement through activities like seaweed collecting. Figures such as Mary Philadelphia Merrifield and Anna Atkins emerged as pioneers in the study of seaweed, making significant contributions to botanical research and early photographic techniques. Notably, the project highlighted the pivotal role of Angelina (Lina) Fannie Hesse in suggesting the use of seaweed-derived agar in microbiology, a contribution that continues to impact scientific practices today. Beyond historical perspectives, “Algologies” addresses contemporary issues such as climate change and invasive species of seaweed and how the public can be engaged in these topics through art. The paper concludes by discussing the potential of seaweed for carbon capture and its role as a barometer of environmental health, as well as its use biotechnology

The Design of GECAM Scientific Ground Segment

The Gravitational wave burst high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a dedicated mission for monitoring high-energy transients. Here we report the design of the GECAM Scientific Ground Segment (GSGS) in terms of the scientific requirements, including the architecture, the external interfaces, the main function, and workflow. Judging from the analysis and verification results during the commissioning phase, the GSGS functions well and is able to monitor the status of the payloads, adjust the parameters, develop the scientific observation plans, generate the scientific data products, analyze the data, etc. Thus, the on-orbit operation and scientific researches of GECAM are guaranteed.

A dataset of meteorological observations at the National Field Scientific Observation and Research Station of Farmland Ecosystem in Changwu County, Shaanxi Province (2005–2019)

A dataset of meteorological observations at the National Field Scientific Observation and Research Station of Farmland Ecosystem in Changwu County, Shaanxi Province (2005–2019)

CONCERTO at APEX On-sky performance in continuum

Context. CarbON CII line in post-rEionisation and ReionisaTiOn epoch (CONCERTO) instrument is a low-resolution mapping spectrometer based on lumped element kinetic inductance detector (LEKIDs) technology, operating at 130-310 GHz. It was installed on the 12-metre APEX telescope in Chile in April 2021 and was in operation until May 2023. CONCERTO’s main goals were the observation of [CII]-emission line fluctuations at high redshift and of the Sunyaev–Zel’dovich (SZ) signal from galaxy clusters. Aims. We present the data processing algorithms and the performance of CONCERTO in continuum by analysing the data from the commissioning and scientific observations. Methods. We developed a standard data processing pipeline to proceed from the raw data to continuum maps. Using a large dataset of calibrators (Uranus, Mars, and quasars) acquired in 2021 and 2022 at the APEX telescope across a wide range of atmospheric conditions, we measured the CONCERTO continuum performance and tested its stability against observing conditions. Further, using observations on the COSMOS field and observations targeting a distant sub-millimetre galaxy in the UDS field, we assessed the robustness of the CONCERTO performance on faint sources and compared our measurements with expectations. Results. The beam pattern is characterised by an effective full width at half maximum (FWHM) of 31.9 ± 0.6″ and 34.4 ± 1.0″ for high-frequency (HF) and low-frequency (LF) bands, respectively. The main beam is slightly elongated with a mean eccentricity of 0.46. Two error beams of ~65″ and ~130″ are characterised, allowing us to estimate a main beam efficiency of ~0.52. The field of view is accurately reconstructed and presents coherent distortions between the HF and LF arrays. LEKID parameters were robustly determined for 80% of the read tones. Cross-talks between LEKIDs are the first cause of flagging, followed by an excess of eccentricity for ~10% of the LEKIDs, all located in a given region of the field of view. Of the 44 scans of Uranus selected for the absolute photometric calibration, 72.5% and 78.2% of the LEKIDs were selected as valid detectors with a probability >70%. By comparing the Uranus measurements with a model, we obtain calibration factors of 19.5±0.6 Hz Jy−1 and 25.6±0.9 Hz Jy−1 for HF and LF, respectively. The point-source continuum measurement uncertainties are 3.0% and 3.4% for the HF and LF bands, ignoring the uncertainty in the model (which is <2%). This demonstrates the accuracy of the methods we deployed to process the data. Finally, the RMS of CONCERTO maps is verified to evolve as proportional to the inverse square root of the integration time. The measured noise-equivalent flux densities (NEFDs) for HF and LF are 115±2 mJy beam−1 s1/2 and 95±1 mJy beam−1 s1/2, respectively, obtained using CONCERTO data on the COSMOS field for a mean precipitable water vapour (pwv) and elevation of 0.81 mm and 55.7 deg. Conclusions. CONCERTO has unique capabilities in fast dual-band spectral mapping at ~30 arcsec resolution and with a ~18.5 arcmin instantaneous field of view. CONCERTO’s performance in continuum is perfectly in line with expectations.