Advances in Space Research最新文献

{"title":"Energy management of space probe based on fuzzy-model predictive control strategy","authors":"Yuan Jiang ,&nbsp;Zhan Lei ,&nbsp;Liying Zhu ,&nbsp;Shuo Liu ,&nbsp;Suliang Ma","doi":"10.1016/j.asr.2025.02.018","DOIUrl":"10.1016/j.asr.2025.02.018","url":null,"abstract":"<div><div>Effective control of the electric propulsion and the charge–discharge current of the battery is crucial in energy management for space probes. A two-level energy management strategy based on a Fuzzy-Model Predictive Control (FMPC) algorithm is proposed in present work. First, in the upper-level, decision layer, the operating level of the electric propulsion is preliminarily determined. Fuzzy rules are employed to assess state of health (SOH) of the battery, guiding the charge–discharge modes and modifying the operating level of electric propulsion. Second, in the lower-level, control layer, a discretized state-space model of the battery is established. Using quadratic programming, the battery current is controlled to ensure a stable energy supply to both the electric propulsion and the other loads. Simulation results indicate that by applying the FMPC strategy, the over-charge or over-discharge time is reduced by 23 %, and the battery capacity degradation is decreased by 12.5 %, and the battery life is extended by 13 %. The battery current also shows good tracking performance, with a maximum transient deviation rate of only 4 %. Finally, hardware-in-the-loop tests are conducted. The experimental results demonstrate that, the electric propulsion operates at a lower power level in the later stages compared to the early stages of the experiment due to a lower state of charge (SOC). The battery current tracking deviation rate is maintained around 5 %. The power distribution and tracking performance of the power system of the space probe are satisfactory, validating the feasibility and effectiveness of the FMPC strategy.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 8","pages":"Pages 6104-6117"},"PeriodicalIF":2.8,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791900","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":"Accuracy evaluation of FY-4B GIIRS temperature and relative humidity profile products","authors":"Fayuan Chen ,&nbsp;Huayang Li ,&nbsp;Qixuan He ,&nbsp;Manhong Tu ,&nbsp;Xinzhi Wang ,&nbsp;Yi Zhou","doi":"10.1016/j.asr.2025.02.020","DOIUrl":"10.1016/j.asr.2025.02.020","url":null,"abstract":"<div><div>FY-4B represents the first operational satellite within the Fengyun-4 series, launched by China. Evaluating the accuracy of the FY-4B Geostationary Interferometric Infrared Sounder (GIIRS) temperature (T) and relative humidity (RH) profile products is crucial for the advancement and practical deployment of China’s geostationary satellite hyperspectral data. This study assesses the detection capabilities and accuracy of the FY-4B T and RH profile products relative to FY-4A, utilizing radiosonde data spanning from January 16, 2023, to January 16, 2024. The findings indicate that the FY-4B GIIRS demonstrates comparable capabilities in detecting T under clear skies to the FY-4A GIIRS. However, the FY-4A GIIRS exhibits superior performance in cloudy conditions. While FY-4B GIIRS effectively detects RH, its RH profile products show less accuracy, with a bias of −3.89 %, an RMSE of 15.42 %, and a correlation coefficient (CC) of 0.56. In contrast, the FY-4B T profile product shows a bias of −0.44 °C, an RMSE of 2.05 °C, and a CC of 0.89, indicating an overall higher accuracy compared to the FY-4A T profile product, which has a bias of −0.46 °C, an RMSE of 2.26 °C, and a CC of 0.87. Despite their overall minor deviation from radiosonde measurements, the correlation with radiosonde data inversely correlates with station altitude. Notably, due to the observation zenith angle in Xinjiang exceeding 60 degrees even before FY-4B’s drift, the satellite lacks T and RH profile products in Xinjiang and parts of the northwestern region under clear skies during the study period. Overall, the T profile products from FY-4A/B exhibit high accuracy and effectively address the scarcity of meteorological observations in remote areas.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 7","pages":"Pages 5283-5296"},"PeriodicalIF":2.8,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683637","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":"A two-DOF drilling robot with a suction drill for planetary regolith exploration","authors":"Yinliang Zhang ,&nbsp;Lin Zhong ,&nbsp;Riyue Wu ,&nbsp;Zhiwei Long ,&nbsp;Kun Xu ,&nbsp;Tao Zhang","doi":"10.1016/j.asr.2025.02.014","DOIUrl":"10.1016/j.asr.2025.02.014","url":null,"abstract":"<div><div>Planetary exploration is critical for human beings to understand the mysteries of the universe, trace the origin and evolution of life, and promote the sustainable development of human society. This article presents a two-degree-of-freedom (two-DOF) drilling robot with a suction drill bit that may be useful for extraterrestrial drilling. The device consists of a propulsion unit and an excavation unit. The propulsion unit has a radial expansion function that can accommodate slight variations in borehole diameter and maintain the body position and orientation of the drilling robot. The excavation unit breaks up the regolith and transports the chips to the ground to make room for advancement. The cutting discharge unit transports the chips from the front end of the drill bit to the surface. This article provides the system design, performance analysis, and cutting mechanics model of the robot in detail. Among others, the cutting mechanical model was completed and validated for a tine and multi-row tines and performed well in predicting drilling loads (average error of 13.81 <span><math><mrow><mo>%</mo></mrow></math></span>). The drilling experiments were conducted mainly on the sand and lunar regolith simulant (LRS), and the robot demonstrated good performance by penetrating a depth of 520 mm in the sand within 420 s. For LRS with more complex mechanical properties, the robot reached 182 mm in 270 s, indicating that the robot can also adapt to extraterrestrial regolith drilling. With appropriate improvements in future work, this robot is considered to have possible applications in extraterrestrial exploration.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 8","pages":"Pages 6089-6103"},"PeriodicalIF":2.8,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791899","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":"Research on multi-objective control algorithm for micro-nano satellite formation based on array signal detection","authors":"Jiao Wang ,&nbsp;Boao Zhu ,&nbsp;Chengshang Li ,&nbsp;Chong Sun ,&nbsp;Yawei Wan","doi":"10.1016/j.asr.2025.02.012","DOIUrl":"10.1016/j.asr.2025.02.012","url":null,"abstract":"<div><div>The study of attitude control methodologies for micro-nano satellite formations is a critical component of formation flight technology, essential for the coordinated operation of formation satellites. Conventional attitude control methods often require measuring absolute attitude using high-precision sensors before adjusting the relative attitude, which increases the payload burden of micro-nano satellites and exacerbates steady-state error. To address the challenges of limited payload capacity in micro-nano satellites and the cumulative relative attitude errors caused by repeated absolute attitude error calculations during control, this paper presents an attitude control algorithm that utilizes the array signal detection (ACASD) based on existing communication modules in micro-nano satellite formations. This paper first models the transmission and reception signals, employs cellular Code Division Multiple Access (CDMA) for multi-satellite identification, calculates bi-directional Line-of-Sight (LOS) vectors between spacecraft using array signals received at the terminal, and uses these LOS vectors as control inputs for the control algorithm design. Error equations and the Lyapunov function are then formulated to verify the feasibility of the algorithm. The performance of the proposed algorithms was rigorously evaluated through simulations, demonstrating superior control accuracy and stability compared to traditional PD controllers and classical sliding mode control methods.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 8","pages":"Pages 6342-6352"},"PeriodicalIF":2.8,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791739","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":"Effect of the ocean tide on the Earth nutation: An updated assessment","authors":"Yuting Cheng,&nbsp;Christian Bizouard","doi":"10.1016/j.asr.2025.02.009","DOIUrl":"10.1016/j.asr.2025.02.009","url":null,"abstract":"<div><div>Ocean tides perturb the nutation of the Earth rotation axis to a level of 2 mas, an order of magnitude that is 20 times that of the uncertainty of nutation estimations. Ocean tidal effects on nutation represent about 5% of the effects caused by the non-rigidity of the Earth. Therefore, it is of fundamental importance for the development of the nutation theory of a real Earth, in particular for determining the frequencies of the normal modes due to the presence of the fluid outer core and solid inner core. The last published estimates date back to the 2000s. They were obtained by (<span><span>Mathews et al., 2002</span></span>) in the frame of the building of the non-rigid Earth nutation model “MHB2000”, which was adopted as the standard in astronomy and geodesy by IAU in 2000. This study aims at reassessing those effects by considering more recent ocean tidal models, namely FES 2014, TPXO8 and EOT11. It extends the computation of the diurnal and semi-diurnal ocean tidal contributions on polar motion and UT1 recently done by (<span><span>Bizouard and Cheng, 2024</span></span>) using the principal waves of the ocean tidal angular momentum derived from the models mentioned before. We take into account the recent development of Earth rotation theory, especially the frequency dependence of the transfer functions in sub-diurnal bands. We find not only significant corrections to the terms evaluated by MHB2000 – up to 100 <span><math><mrow><mi>μ</mi></mrow></math></span>as –, but also significant contributions for circular terms with periods of <span><math><mrow><mo>+</mo><mn>9.13</mn></mrow></math></span> days, <span><math><mrow><mo>+</mo><mn>13.63</mn></mrow></math></span> days, <span><math><mrow><mo>+</mo><mn>121.75</mn></mrow></math></span> days, <span><math><mrow><mo>-</mo><mn>27.55</mn></mrow></math></span> days, and <span><math><mrow><mo>-</mo><mn>9.3</mn></mrow></math></span> years. The modelled <span><math><mrow><mo>-</mo><mn>27.55</mn></mrow></math></span> day term with an amplitude of 60 <span><math><mrow><mi>μ</mi></mrow></math></span>as is clearly reflected in the celestial pole offsets (CPO) with the same phase and one third of the predicted amplitude. Moreover, the 16 largest in-phase or out-phase perturbations produced by ocean tides, which were not taken into account in the reference model MHB2000, are found in the CPO time series with a systematically smaller amplitude. These results strongly suggest that the current nutation model needs to be revised.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 7","pages":"Pages 5245-5253"},"PeriodicalIF":2.8,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683623","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":"Mars Express investigations of the Martian ionosphere using ASPERA-3 and new MARSIS fixed frequency modes","authors":"Mats Holmstrom ,&nbsp;Andrii Voshchepynets ,&nbsp;Stas Barabash ,&nbsp;Sebastián Rojas Mata ,&nbsp;Beatriz Sánchez-Cano ,&nbsp;Mark Lester ,&nbsp;Simon Joyce ,&nbsp;Andrea Cicchetti ,&nbsp;Roberto Orosei ,&nbsp;Myroslava Hlebena","doi":"10.1016/j.asr.2025.02.005","DOIUrl":"10.1016/j.asr.2025.02.005","url":null,"abstract":"<div><div>The plasma package Analyzer of Space Plasma and Energetic Atoms (ASPERA-3) onboard Mars Express has observed ions and electrons accelerated by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) radar when it operates in its active ionospheric sounding mode. To better study the processes involved, new operational modes for MARSIS have been developed. In the first, a fixed frequency mode, the transmitter does not sweep over a range of frequencies, as normal, but instead transmits pulses at a fixed frequency. This frequency has been chosen to be close to the fundamental frequency of the local ionosphere around the spacecraft, which in all cases is &lt; 350 kHz. Also, an alternating mode has been introduced, where observations in the fixed frequency mode are interleaved with observations that sweep over frequencies in order to investigate how ions are accelerated.</div><div>Here we describe the new operational modes and present the results of several tests performed in the years 2020, 2021, and 2023.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 7","pages":"Pages 5899-5910"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683548","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":"Cyclic variations in the solar differential rotation pattern based on the Hα filament data (1957–1993)","authors":"Tengiz Mdzinarishvili ,&nbsp;Bidzina Chargeishvili ,&nbsp;Darejan Japaridze","doi":"10.1016/j.asr.2025.02.011","DOIUrl":"10.1016/j.asr.2025.02.011","url":null,"abstract":"<div><div>Using polynomial regression models, we studied the differential rotation of the solar chromosphere <span><math><mrow><msub><mrow><mi>H</mi></mrow><mrow><mi>α</mi></mrow></msub></mrow></math></span> filaments on the basis of data from the Abastumani Astrophysical Observatory. Current research uses discrete orthogonal polynomials to examine how the solar differential rotation of the <span><math><mrow><msub><mrow><mi>H</mi></mrow><mrow><mi>α</mi></mrow></msub></mrow></math></span> filaments varies with solar cycles. For differential rotation regression models, we consider discrete orthogonal polynomials up to degree 4. When performing regression analysis, we apply the Akaike information criterion. Regression analysis of the <span><math><mrow><msub><mrow><mi>H</mi></mrow><mrow><mi>α</mi></mrow></msub></mrow></math></span> data indicates that the best fit for polynomial models of the solar differential rotation is achieved with discrete orthogonal polynomials of degree 2. The equatorial values of the rotation rates remain almost constant for the period 1957–1993, while the average angular velocity, the ”rigid body” rotation rate, has cyclic variation and a decreasing linear trend. The spatio-temporal distribution of rotation rates hints at a 22-year periodicity in the differential pattern of rotation of the Sun.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 8","pages":"Pages 6514-6521"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791622","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":"Design and verification of the state recovery controller for a drag-free satellite with two test masses","authors":"Chenglei Yue ,&nbsp;Zhaohui Dang ,&nbsp;Chu Zhang ,&nbsp;Xiaokui Yue ,&nbsp;Yonghe Zhang","doi":"10.1016/j.asr.2025.02.001","DOIUrl":"10.1016/j.asr.2025.02.001","url":null,"abstract":"<div><div>This paper proposes a model predictive controller aimed at facilitating the recovery of drag-free satellite states after being impacted by micrometeorites, and designs a ground simulator for verification of the controller on the ground. The drag-free satellite will be in an undesirable working state after being seriously disturbed, and the state recovery is the process of resetting states to the desired states through the control system. The dynamic of the state recovery controller are simplified for the different control bandwidths of microthrusters and suspension controllers. In addition, consideration is given to relative distance constraints to prevent collisions between the test masses and the spacecraft platform. Drag-free satellites usually perform high-precision measurement missions, and existing ground equipment lacks a suitable microgravity environment. Therefore, in order to verify the proposed state recovery controller on the ground, this paper designs a novel ground simulator. We conduct dynamic modeling and numerical simulation analysis on the ground simulator to verify the feasibility of its design. The proposed ground simulator employs a physically constructed five-degree-of-freedom motion platform to simulate the spacecraft platform, while the test masses are simulated using a virtual simulator. To achieve dynamic equivalence between the space and ground environments, the design parameters of the system are determined using the Buckingham’s <span><math><mrow><mi>π</mi></mrow></math></span> theorem, which is also extended to the controller design. Monte Carlo simulation results validate the controller’s robustness. The overall performance of the ground simulation platform is demonstrated by numerical simulations, emphasizing the dynamic equivalence between the space and ground environments. The results demonstrate the effectiveness of the proposed approach. In the subsequent work, we will construct the ground simulation platform according to the design scheme proposed in this paper.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 8","pages":"Pages 6026-6047"},"PeriodicalIF":2.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791896","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":"Design of impact ultrasonic penetrator and optimization of impact efficiency","authors":"Yinchao Wang ,&nbsp;Ziming Yu ,&nbsp;Zihao Yin ,&nbsp;Weiwei Zhang ,&nbsp;Lin Zu ,&nbsp;Guanghong Tao ,&nbsp;Suyang Yu","doi":"10.1016/j.asr.2025.02.008","DOIUrl":"10.1016/j.asr.2025.02.008","url":null,"abstract":"<div><div>This paper proposes, optimizes, and experimentally investigates a thread-clamped ultrasonic penetrator that uses a spring to induce forced vibration in the transducer, thereby enhancing drilling efficiency. The penetrator consists mainly of a transducer, a free mass, an elastic energy storage unit, a drilling tool, and a housing. The elastic energy storage unit is attached to the transducer’s flange, permitting limited axial movement. When excited by a sinusoidal signal at a specific frequency, the transducer’s front end generates high-frequency longitudinal vibrations that impact the free mass. Upon colliding with the drilling tool and the transducer subsequently, the elastic energy storage unit absorbs and utilizes this energy, optimizing the energy transfer process. This study designs the penetrator’s structure, analyzes the motion curves of each component, and derives the kinetic energy curve of the drilling tool. A novel particle swarm optimization algorithm is employed to optimize the key parameters of the penetrator, verifying the optimization effect. The prototype was fabricated, and its vibration and output characteristics were tested. The results from rigorous testing clearly demonstrate a significant improvement in the penetrator’s drilling efficiency after meticulous structural and parameter optimization. Both simulation and experimental results confirm the feasibility of the penetrator.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 8","pages":"Pages 6070-6088"},"PeriodicalIF":2.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791898","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":"Study the spatiotemporal variation characteristics and driving forces differences of land surface temperature in the Chishui River Basin based on the Bayesian Structural equation model","authors":"Xingji Li ,&nbsp;Hong Cai ,&nbsp;Xianyun Zhang ,&nbsp;Lei Zhang ,&nbsp;Yibo Chen ,&nbsp;Jiandong Hao ,&nbsp;Yong Mao","doi":"10.1016/j.asr.2025.02.006","DOIUrl":"10.1016/j.asr.2025.02.006","url":null,"abstract":"<div><div>Clarifying the driving processes of the thermal environment of a basin is important for maintaining the Water-land ecological security of the basin. The main focus in current basin Land surface temperature (LST) driver research is on the direct effects of the drivers, but there is still insufficient understanding of their interactions and indirect effects. This study based on Bayesian Structural Equation Model (BSEM) to study the driving force influencing LST in the Chishui River Basin from three perspectives: the spatial distribution of long-term LST at a 1 km resolution, changes, and the spatial distribution of instantaneous LST at a 100 m resolution. The results indicate that: (1) Over the 20 years in the Chishui River Basin, daytime LST (DLST) and day-night LST difference (LSTd-LSTn) exhibited a cooling trend of 0.039 K/year and 0.0312 K/year, respectively, while nighttime LST (NLST) showed a warming trend of 0.0238 K/year. (2) The spatial distribution of 1 km long time-series LST is mainly influenced by terrain and climate, while the change of LST is primarily influenced by climate and the degree of vegetation cover. The 100 m instantaneous LST is mainly influenced by terrain and human activities. The differences in dominant driving factors of LST at different spatial scales stem from the scale dependence of driving factors. (3) Terrain directly affects LST and indirectly through climate, human activities, and biophysical parameters; human activities and climate directly affect LST and indirectly through biophysical parameters. NDVI directly affects LST and plays an important intermediate regulatory role. This study has certain theoretical guidance significance in the aspects of ecological civilization construction and surface water thermal environment in the basin.</div></div>","PeriodicalId":50850,"journal":{"name":"Advances in Space Research","volume":"75 8","pages":"Pages 6253-6273"},"PeriodicalIF":2.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791826","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}