Advances in Space Research最新文献

{"title":"Developments of empirical models for vertical adjustment of precipitable water vapor measured by GNSS","authors":"Maohua Ding ,&nbsp;Jiating Ding ,&nbsp;Zhuoyue Peng ,&nbsp;Mingkun Su ,&nbsp;Tao Sun","doi":"10.1016/j.asr.2024.08.039","DOIUrl":"10.1016/j.asr.2024.08.039","url":null,"abstract":"<div><div>In some applications of Precipitable Water Vapor (PWV) measured by Global Navigation Satellite System (GNSS), we have to consider PWV vertical adjustments (PWVVAs) due to the height differences between the target sites and the GNSS sites. Thus, developments of global empirical models for PWVVAs deserve our attention. In this study, we found that the decrease factor of water vapor (<em>λ</em>) can be also used as the decrease factor of PWV when we use the Smith’s vertical variations of water vapor. Based on this conclusion, PWVVAs can be carried out by using the empirical values of <em>λ</em> and atmospheric total pressure (or zenith hydrostatic delay). Thus, we gave two empirical models for PWVVAs (i.e. PWVVA-Ⅰ and PWVVA-Ⅱ). On the other hand, another aim of this research is to develop an empirical model of PWVVA using neural network (i.e. PWVVANN). Measured PWV of one site, the heights of this site and the target site, and empirical values of <em>λ</em> and zenith hydrostatic delay were considered as the input parameters of the PWVVANN model. The output is the PWV at the target height. Global statistical results verify<!--> <!-->that the PWVVANN model has a accuracy of 1.08 mm and its accuracy has increased by respective 30.7 %, 24.4 % and 23.6 % when compared with PWVVA-Ⅰ, PWVVA-Ⅱ and a state of the art model (i.e. the GPWV-H model).</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 2473-2483"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient approach of painting asteroids for planetary defense using network data envelopment analysis","authors":"Sajjad Aslani Khiavi,&nbsp;Mahdi Jafari-Nadoushan","doi":"10.1016/j.asr.2024.10.056","DOIUrl":"10.1016/j.asr.2024.10.056","url":null,"abstract":"<div><div>The potential dangers of asteroids hitting the Earth are one of the challenges for mankind to preserve the human species. Various missions have been proposed to defend asteroids. Changing the Albedo magnitude by painting asteroids is a suitable and low-cost idea for the asteroid defense plan. Moving away from the Earth requires fuel consumption and the limitations of carrying the necessary materials for painting. Due to these limitations, we are not able to paint the entire asteroid, or for other reasons, we have to paint parts of the asteroid. Therefore, we should find a relative compromise between the variables to get most efficiency from painting parts of the asteroid. In this paper, we present a network structure of Data Envelopment Analysis (DEA) and consider the relationships of all variables including physical and orbital characteristics, spacecraft limitations, effective solar mass, albedo change rate, and elapsed time of the mission. We look for parts of the asteroid’s surface where we can get the most displacement by spending the least amount of raw material. One of the advantages of the proposed method is the capability of sensitivity analysis to any of the variables affecting the magnitude of the final displacement. The theorems related to the stability were proven analytically, and we show how to reduce the elapsed time by maintaining efficiency in asteroid painting. The performance of the proposed model was analyzed using real and hypothetical data from asteroid Apophis 99942.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 3230-3241"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143171232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geomagnetic effect of the solar eclipse of April 8, 2024, in the North American sector","authors":"Leonid F. Chernogor,&nbsp;Marya Yu. Holub","doi":"10.1016/j.asr.2024.11.002","DOIUrl":"10.1016/j.asr.2024.11.002","url":null,"abstract":"<div><div>We have performed the analysis of the temporal variations of the <em>X</em>, <em>Y</em>, <em>Z</em> geomagnetic field components recorded at 9 stations of the INTERMAGNET network during the Great North American Eclipse of April 8, 2024, as well as during quiet time reference period. It has been shown that the solar eclipse (SE) was accompanied by both up to a 10 nT decrease in the strength of all geomagnetic field components, and up to a 10 nT increase of in the strength of individual components at a number of stations. The durations of the disturbances in all components were close in value, and they usually ranged from 120 to 200 min, whereas the SEs took place within a 130–135 min interval. The delay or advance time of the geomagnetic effect depended on the geometry of the Moon’s shadow. The SE was accompanied by suppression of an oscillation with a period of about 60 min and amplitude of 1–3 nT, which existed prior to the eclipse. A tendency was observed for the geomagnetic effect to increase as the SE magnitude increased. The magnitude of the SE geomagnetic effect has been confirmed to depend not only on the eclipse magnitude, but also on the location of the magnetometer station, the geometry of the Moon’s shadow, the state of the ionosphere and the patterns of ionospheric currents. The estimates of the geomagnetic effect are in good agreement with the observational data.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 3133-3149"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the application of reflectivity control devices in spacecraft attitude control","authors":"Adam Jansen ,&nbsp;Houman Hakima ,&nbsp;Michael C.F. Bazzocchi","doi":"10.1016/j.asr.2024.12.052","DOIUrl":"10.1016/j.asr.2024.12.052","url":null,"abstract":"<div><div>This paper investigates the application of reflectivity control devices in spacecraft attitude control. In reflectivity control devices, in particular, the polymer-dispersed liquid–crystal type, the light transmission properties of the film can be altered from transparent to opaque by adjusting the amount of applied voltage. This technology has previously been applied to residential and commercial buildings and, recently, it has been widely adopted in the automotive industry for purposes such as electrochromic glass roofs. Since spacecraft in orbit receive a continuous flow of photons emitted from the Sun (when in the sunlit portion of their orbits), the momentum transferred from these photons to the spacecraft can be utilized for attitude and orbit control. The focus of this paper is on attitude control through strategically adjusting the transparency of reflectivity-control panels attached to the spacecraft away from its center of mass. In this paper, a conceptual design for a spacecraft equipped with reflectivity-control device panels is presented, and the equations of attitude motion coupled with control torques produced by these devices are derived. Furthermore, a control strategy for detumbling a small satellite, such as a CubeSat, is investigated. To assess the viability of reflectivity-control technology in spacecraft attitude control, a number of case studies are presented. The performance of these devices is discussed in light of the results obtained from the numerical simulations.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 2826-2836"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of urban environment quality using analytical hierarchical process and multi-dimensional decomposition analysis for Mumbai metropolitan region, India","authors":"Rabin Chakrabortty ,&nbsp;Atul Kumar ,&nbsp;Sajedur Rahman Mishuk ,&nbsp;Malay Pramanik ,&nbsp;Ram Avtar ,&nbsp;Harekrishna Manna ,&nbsp;Mohamed Zhran","doi":"10.1016/j.asr.2024.11.058","DOIUrl":"10.1016/j.asr.2024.11.058","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The rapid pace of urbanization globally, with over 55% of the population residing in urban areas and projections indicating two-thirds by 2050, underscores the critical importance of addressing urban environmental quality (UEQ). The financial capital of India, Mumbai, emblematic of intense urbanization, faces escalating environmental challenges stemming from population growth and economic development. This study employs a multidimensional approach, incorporating remote sensing (RS) data, geographic information system (GIS), demographic data, and other primary datasets to construct a comprehensive UEQ index. The UEQ index is characterized by its integration of diverse indicators such as air quality, green spaces, noise levels, and socio-economic factors, providing a holistic assessment of urban environmental health. Utilizing analytical hierarchical process (AHP) for multi-criteria analysis, the study explores spatial patterns of UEQ and identifies causal parameters, emphasizing Mumbai’s slum population, population density, and environmental factors. Multi-collinearity analysis reveals potential risks in interpreting the effects of certain variables, specifically air pollution, population density, and socio-economic status. The high correlation between these variables suggests that their individual impacts on UEQ may be difficult to isolate, potentially leading to overestimation or underestimation of their effects. The study explores the spatial patterns of UEQ in Mumbai, identifying significant disparities across different regions. The spatial analysis indicates that central and northern districts suffer from lower environmental quality due to higher pollution levels, limited green spaces, and higher population densities. The spatial pattern of environmental health in Mumbai shows notable disparities, with central wards such as Andheri East, Andheri West, Khar, Dadar, and Chembur consistently experiencing poorer environmental quality due to higher population density and industrial activity, whereas peripheral wards like Borivali and Colaba enjoy better environmental conditions with more green spaces and lower population density; this highlights the evolving nature of environmental health challenges over time. The study emphasizes a concerning trend with 86.9% of the area classified as moderate to very high UEQ, while 13.1% faces low to very low UEQ. Causal parameter priorities underscore the significant influence of slum population and population density. Compared to existing assessment, this study is mainly associated for determining the trend of UEQ and its associated concerns. The study introduces a replicable UEQ assessment methodology with potential applications globally, offering insights for sustainable urban planning, policy formulation, and environmental management. We have created a detailed UEQ index that combines data from multiple time periods and includes trend analysis, offering a more comprehensive and nuanced assessment","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 2792-2809"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A multipath mitigation method for significant environmental changes in deformation monitoring","authors":"Chaoqian Xu ,&nbsp;Zihuai Guo ,&nbsp;Yibin Yao ,&nbsp;Mingxian Hu ,&nbsp;Peifen Pan","doi":"10.1016/j.asr.2024.11.051","DOIUrl":"10.1016/j.asr.2024.11.051","url":null,"abstract":"<div><div>Significant environmental changes around monitoring antennas, caused by activities like earthmoving, protective structure installation, and vegetation removal, are common in GNSS deformation monitoring. Traditional multipath mitigation models fail to effectively suppress these multipath effects. To address this, we propose an Abnormal multipath Detection and Re-Mitigating (ADRM) method based on grid precision checks. The analysis results indicated that the traditional Multipath Hemispherical Model (MHM) inadequately mitigated multipath errors after environmental changes. In contrast, ADRM provided accurate detection of abnormal multipath areas. In the tested grid strategies, employing denser grids has proven more effective in mitigating multipath errors. The strategy utilizing 1°×1° grids achieved a detection accuracy exceeding 90 %, with a misjudgment rate under 10 %. This strategy is therefore recommended. Further mitigation of multipath errors after environmental changes using ADRM has significantly enhanced positioning precision, with improvements of 76.47 %, 89.17 %, and 80.83 % in the east, north, and vertical directions, respectively.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 2753-2763"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analyzing land use land cover dynamics under rapid urbanization using multi-temporal satellite imageries and geospatial technology for Jamshedpur city in India","authors":"Pratik Deb ,&nbsp;Ranjeet K. Jha ,&nbsp;Navneet Kumar ,&nbsp;Mukesh Kumar Vishal ,&nbsp;Dericks Praise Shukla ,&nbsp;Prasanta K. Kalita ,&nbsp;Laishram Kanta Singh","doi":"10.1016/j.asr.2024.11.059","DOIUrl":"10.1016/j.asr.2024.11.059","url":null,"abstract":"<div><div>Land use land cover (LULC) is considered as one of the most important driving factors behind the global environmental change. The rapid changes in the LULC patterns than ever before, mostly in developing countries, are frequently considered by widespread urban sprawling, land degradation, reduction of agricultural land, and alteration into other land use categories, resulting in enormous costs to the environment. Using a combined remote sensing and GIS technique, this study investigates the spatial urban expansion and its impacts on other LULC categories from 1987 to 2016 in Jamshedpur, India, based on the acquired multispectral satellite imageries, field observations, and demographic data. A visual-based image analysis technique was employed to develop a LULC map for the period of 1987, 2004, and 2016, and the precision of the maps was determined by overall accuracy and kappa statistic methods. The compact urbanization over the city was quantified using both landscape metrics and Shannon’s entropy method. The results of the change detection showed that the built-up area has experienced more than fifty percent growth during the 1987 – 2016 period. It is the main driving factor behind the reduction in the area of other land use categories: agricultural land (−87.12 %), vegetation (−67.51 %), riverbed (−46.25 %), and forest cover (−27.92 %). Although barren land and fallow land were the most dynamic land use categories, it increased by 281.84 % and 119.66 %, respectively. The change matrix between 1987 and 2016, indicated the maximum transformation (+455.23 %) of fallow land to settlement. Geographically, there is a continuous growth in the built-up area from the city center to the fringes as a result of suburbanization. The values of Shannon’s entropy during 1987, 2004, and 2016 were 1.11, 1.19, and 1.57, respectively. The demographic analysis shows that the annual population for the period of 1971–1981, 1981–1991, 1991–2001, and 2001–2011 has changed by + 3.89 %, +2.09 %, +2.91 %, and + 1.95 % per year, respectively. The population growth, aggregated settlements and land scarceness in Jamshedpur were found to be the key reasons behind the urban growth and development. This study emphasizes the critical need for sustainable urban development practices and robust land use strategies to alleviate the environmental impacts of rapid urban expansion. It will lay a valuable groundwork for future research focused on integrating land use management with urban growth frameworks to achieve balanced and resilient development in Jamshedpur.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 2810-2825"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143171076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Did the “Tauktae” cyclone impact the upper atmosphere through traveling ionospheric disturbances? A case study over the Arabian Sea using measurements from InSWIM network stations","authors":"Swati Chowdhury,&nbsp;R.K. Choudhary,&nbsp;D. Bala Subrahamanyam","doi":"10.1016/j.asr.2024.11.012","DOIUrl":"10.1016/j.asr.2024.11.012","url":null,"abstract":"<div><div>In May 2021, the Arabian Sea experienced Cyclone Tauktae, the first pre-monsoon tropical cyclone of the year and the fifth strongest ever recorded over the Arabian Sea. It originated from a depression near the Lakshadweep Islands on May 14, 2021, rapidly intensified into an extremely severe cyclonic storm by May 17, 2021, and made landfall on May 19, 2021. During its passage, the Arabian Sea experienced highly convective and disturbed conditions. We used this powerful tropical cyclone amid geomagnetically quiet conditions to explore its potential effects on the ionospheric region. Using the COSMO regional atmospheric model, we simulated the movement of Cyclone Tauktae and lower atmospheric conditions. Additionally, we utilized ionospheric data from Kavaratti, GMRT, and Pune to investigate the possible impacts of cyclonic storms on the upper atmosphere. These three stations were selected from the Indian Network for Space Weather Impact Monitoring (InSWIM) network. Analysis of the Vertical Total Electron Content (VTEC) measurements from May 14 to 18, 2021 (cyclone-influenced days) and May 05, 2021 (non-cyclone day) revealed a prominent presence of Traveling Ionospheric Disturbances (TIDs) during the cyclone days. Spectral analysis of TEC data showed significant TID spectral power enhancements (<span><math><mrow><mo>∼</mo></mrow></math></span> 5) on May 16–17, 2021, at Pune and GMRT, with wave velocities ranging from 100 to 125 m/s. As the geomagnetic conditions remained quiet during both the non-cyclone day and the cyclone-influenced days, the observed TIDs are attributed to the forcing from the lower atmosphere, eventually associated with the presence of Cyclone Tauktae.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 3159-3178"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143171236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Galileo high-accuracy service SSR product quality and PPP performance","authors":"Meng Gao ,&nbsp;Ziheng Meng ,&nbsp;Huizhong Zhu ,&nbsp;Tianjun Liu ,&nbsp;Aigong Xu ,&nbsp;Chunbo Tan ,&nbsp;Zhihua Cao","doi":"10.1016/j.asr.2024.11.021","DOIUrl":"10.1016/j.asr.2024.11.021","url":null,"abstract":"<div><div>The Galileo navigation satellite system (Galileo) High-Accuracy Service (HAS) is a global navigation satellite system (GNSS) augmentation service proposed by the European Union that providing free of charge orbit, clock and pseudo-range biases corrections to users around the world through E6 signals and by terrestrial means (Internet). However, there has been limited research on the performance of the HAS State Space Representation (SSR) products broadcast by the Galileo Service Centre (GSC). However, there has been limited research on the performance of the HAS SSR products broadcast by the GSC. This study uses BNC software to receive HAS SSR products and compares them with SSR products from three analysis centers with relatively high accuracy: Wuhan University (WHU), the Chinese Academy of Sciences (CAS), and Centre National d’Etudes Spatiales (CNES), and analyzes them in terms of orbit, clock error, and positioning performance. In addition, Galileo HAS as a satellite-based augmentation service, this study chooses BDS PPP B2b, which is also a satellite-based augmentation service, as a comparison to analyze the performance of the HAS augmentation service. The results indicate that the signal-in-space ranging error (SISRE) values for Global Positioning System (GPS) and Galileo corrected by HAS are 7.26 cm and 5.79 cm, respectively. The average convergence times for the GPS + Galileo combination in the static and kinematic modes are 9.4 min and 14.1 min, respectively. Moreover, in kinematic mode, single-system positioning achieved an accuracy of better than 12 cm in the E direction and better than 17 cm in the U direction. In comparison with BeiDou navigation satellite system (BDS) PPP-B2b, the average convergence time of HAS under static mode is 16 min, while that of B2b requires 19 min. Meanwhile, the positioning accuracy of B2b products in the three directions is improved by more than 1 cm compared with that of HAS. The convergence time of HAS in kinematic mode is 12 min shorter than that of B2b.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 2669-2682"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143171695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating plasmasphere, ionosphere and thermosphere observations and models into a standardised open access research environment: The PITHIA-NRF international project","authors":"Anna Belehaki ,&nbsp;Ingemar Häggström ,&nbsp;Tamas Kiss ,&nbsp;Ivan Galkin ,&nbsp;Anders Tjulin ,&nbsp;Mária Miháliková ,&nbsp;Carl-Fredrik Enell ,&nbsp;Gabriel Pierantoni ,&nbsp;Yin Chen ,&nbsp;Gergely Sipos ,&nbsp;Sean Bruinsma ,&nbsp;Viviane Pierrard ,&nbsp;David Altadill ,&nbsp;Antoni Segarra ,&nbsp;Víctor Navas-Portella ,&nbsp;Emanuele Pica ,&nbsp;Luca Spogli ,&nbsp;Lucilla Alfonsi ,&nbsp;Claudio Cesaroni ,&nbsp;Vicenzo Romano ,&nbsp;Jurgen Watermann","doi":"10.1016/j.asr.2024.11.065","DOIUrl":"10.1016/j.asr.2024.11.065","url":null,"abstract":"<div><div>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 <em>trans</em>-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 <em>trans</em>-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.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 3","pages":"Pages 3082-3114"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}