Showing 1,181 - 1,200 results of 2,648 for search '"satellites"', query time: 0.08s Refine Results
  1. 1181

    A Model of High Latitude Ionospheric Convection Derived From SuperDARN EOF Model Data by M. M. Lam, R. M. Shore, G. Chisham, M. P. Freeman, A. Grocott, M.‐T. Walach, L. Orr

    Published 2023-07-01
    “…Abstract Forecasting of the effects of thermospheric drag on satellites will be improved significantly with better modeling of space weather effects on the high‐latitude ionosphere, in particular the Joule heating arising from electric field variability. …”
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    Article
  2. 1182

    Improving Neutral Density Predictions Using Exospheric Temperatures Calculated on a Geodesic, Polyhedral Grid by D. R. Weimer, P. M. Mehta, W. K. Tobiska, E. Doornbos, M. G. Mlynczak, D. P. Drob, J. T. Emmert

    Published 2020-01-01
    “…The exospheric temperature model is derived from measurements of the neutral densities on several satellites. These data were sorted into triangular cells on a geodesic grid, based on location. …”
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  3. 1183
  4. 1184

    Detecting centennial changes in the clarity and colour of the Red and Eastern Mediterranean Seas by retracing the “Pola” expeditions by Jonathan R. Heath, Robert J. W. Brewin, Jaime Pitarch, Dionysios E. Raitsos

    Published 2024-08-01
    “…Here, we retrace Secchi depth and Forel-Ule colour scale surveys performed during the “Pola” expeditions between 1890-1898 using contemporary satellite data, to assess changes in water colour and clarity (and by extension phytoplankton abundance) in the Red Sea and the Eastern Mediterranean Sea over the past century. …”
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    Article
  5. 1185

    Sensitivity of global solar irradiance to transposition models: Assessing risks associated with model discrepancies by Yasser F. Nassar, Hala J. El-Khozondar, Mohamed M. Khaleel, Abdussalam A. Ahmed, Abdulgader H. Alsharif, Monaem Elmnifi, Mark Amoah Nyasapoh

    Published 2025-03-01
    “…Global and sky-diffuse horizontal irradiances are measured by meteorological stations and satellites. Global horizontal solar irradiance is converted into a global tilted solar irradiance using transposition models (TMs). …”
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    Article
  6. 1186

    Enhanced quantitative precipitation estimation through the opportunistic use of Ku TV-SAT links via a dual-channel procedure by L. Gelbart, L. Barthès, F. Mercier-Tigrine, A. Chazottes, C. Mallet

    Published 2025-01-01
    “…<p>Earth–satellite microwave links such as TV-SAT can help for rainfall monitoring and could be a complement or an alternative to ground-based weather radars, rain gauges or Earth observation satellites. …”
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    Article
  7. 1187

    Performance Enhancement of NavIC With Low-Cost MEMS-IMU, Barometer, and Magnetometer by Saraswathi Sirikonda, Laxminarayana Parayitam, Hari B. Hablani

    Published 2025-01-01
    “…Integration of the global navigation satellite systems with the Inertial Navigation System (INS) is a sensor fusion stratagem for continuous and reliable navigation. …”
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    Article
  8. 1188

    Construction of Multi-Scale Fusion Attention Unified Perceptual Parsing Networks for Semantic Segmentation of Mangrove Remote Sensing Images by Xin Wang, Yu Zhang, Wenquan Xu, Hanxi Wang, Jingye Cai, Qin Qin, Qin Wang, Jing Zeng

    Published 2025-01-01
    “…To address these challenges, we present two main contributions. (1) Using multi-source high-resolution satellite imagery from China’s new generation of Earth observation satellites, we constructed the Mangrove Semantic Segmentation Dataset of Beihai, Guangxi (MSSDBG); (2) We propose a novel Multi-scale Fusion Attention Unified Perceptual Network (MFA-UperNet) for precise mangrove segmentation. …”
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  9. 1189

    Inferring 3D displacement time series through InSAR measurements and potential field theory in volcanic areas by Andrea Barone, Maurizio Fedi, Antonio Pepe, Pietro Mastro, Pietro Tizzani, Raffaele Castaldo

    Published 2025-02-01
    “…Abstract Interferometric SAR (InSAR) techniques allow the detection of ground displacements along the satellite line-of-sight (LOS) directions. Moreover, InSAR can discriminate the ground deformations along the Up-Down and East-West by combining information gathered through ascending and descending paths. …”
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    Article
  10. 1190

    Evaluation and Correction of GPM IMERG Precipitation Products over the Capital Circle in Northeast China at Multiple Spatiotemporal Scales by Wei Sun, Yonghua Sun, Xiaojuan Li, Tao Wang, Yanbing Wang, Qi Qiu, Zhitian Deng

    Published 2018-01-01
    “…The Global Precipitation Measurement (GPM) satellite product offers new options for the global study of precipitation. …”
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    Article
  11. 1191

    Validation of the DSCOVR Spacecraft Mission Space Weather Solar Wind Products by Paul T. M. Loto'aniu, K. Romich, W. Rowland, S. Codrescu, D. Biesecker, J. Johnson, H. J. Singer, A. Szabo, M. Stevens

    Published 2022-10-01
    “…Hourly averages, in general, show good correlations between the satellites for the IMF, solar wind velocity Geocentric Solar Ecliptic (GSE) vx‐component, and density. …”
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  12. 1192

    A Sentinel-2-Based System to Detect and Monitor Oil Spills: Demonstration on 2024 Tobago Accident by Emilio D’Ugo, Ashish Kallikkattilkuruvila, Roberto Giuseppetti, Alejandro Carvajal, Abdou Mbacke Diouf, Matteo Tucci, Federico Aulenta, Alessandro Ursi, Patrizia Sacco, Deodato Tapete, Giovanni Laneve, Fabio Magurano

    Published 2025-01-01
    “…The analysis suggests that with sufficient cloud-free conditions, high temporal revisit multispectral optical satellites could support the timely detection and tracking of oil masses during environmental incidents near natural sanctuaries.…”
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  13. 1193

    An Apparent Thermal Inertia Based Trapezoid Model for Downscaling ESA CCI Soil Moisture Products by Shulin Li, Minfeng Xing, Taifeng Dong

    Published 2025-01-01
    “…Various spectral information derived from optical satellite data, such as the land surface temperature-vegetation parameter (LST-VP), have been widely employed to detect spatiotemporal variability of SM under different regional hydrological scales. …”
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    Article
  14. 1194

    Quantifying the Spatiotemporal Evolution of Radiation Belt Electrons Scattered by Lower Band Chorus Waves: An Integrated Model by Weixin Chen, Song Fu, Xin Ma, Binbin Ni, Deyu Guo, Qiongyue Zhang, Xiangyuan Tong, Yibo Zhao, Xing Cao, Zheng Xiang, Yuan Lei

    Published 2024-08-01
    “…However, the global wave and plasma density distributions adopted in the kinetic simulations are very difficult to be directly obtained by satellites. Here we present a new model, by integrating the machine learning technique and kinetic simulations, to analyze the spatiotemporal evolution of radiation belt electrons scattered by lower band chorus (LBC). …”
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    Article
  15. 1195

    Evidence of active subglacial lakes under a slowly moving coastal region of the Antarctic Ice Sheet by J. F. Arthur, C. Shackleton, G. Moholdt, K. Matsuoka, J. van Oostveen

    Published 2025-01-01
    “…Laser altimetry data from ICESat-2 and ICESat (Ice, Cloud, and Land Elevation Satellites) combined with multi-temporal Reference Digital Elevation Model of Antarctica (REMA) strips reveal that these lakes actively fill and drain over periods of several years. …”
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    Article
  16. 1196

    Evaluating the accuracy of earth rotation parameters based on the BDS observations by Chenxiang Wang, Pengfei Zhang, Tengxu Zhang, Ziyu Shen, Jizhang Sang, Wenbin Shen

    Published 2025-01-01
    “…The BeiDou satellite system (BDS) has progressed with the full operationalization of the second-generation regional system (BDS-2) and the third-generation global system (BDS-3). …”
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    Article
  17. 1197

    Impacts of an Early Morning Low Earth Orbit Observing Platform in a Future Global Observing Network Scenario by Nikki C. Privé, Bryan M. Karpowicz, Erica L. McGrath-Spangler, Satya Kalluri

    Published 2024-12-01
    “…Significant changes to the global observing network are expected in the coming decades including the launch of a global ring of geostationary satellites and a reduction in the number of low earth orbit (LEO) platforms. …”
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  18. 1198

    Estimation of 1 km Dawn–Dusk All-Sky Land Surface Temperature Using a Random Forest-Based Reanalysis and Thermal Infrared Remote Sensing Data Merging (RFRTM) Method by Yaohai Dong, Xiaodong Zhang, Xiuqing Hu, Jian Shang, Feng Zhao

    Published 2025-01-01
    “…Under this background, this study merged the observations of the Medium Resolution Spectrum Imager (MERSI-LL) on board the dusk–dawn-orbit Fengyun (FY)-3E satellite and Global Land Data Assimilation System (GLDAS) data to estimate dawn–dusk 1 km all-sky LST using a random forest-based method (RFRTM). …”
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  19. 1199

    A New Global Ionospheric Electron Density Model Based on Grid Modeling Method by Huijun Le, Tingwei Han, Qiaoling Li, Libo Liu, Yiding Chen, Hui Zhang

    Published 2022-06-01
    “…Abstract Based on nearly 4.6 million radio occultation (RO) ionospheric profile data from Constellation Observing System for Meteorology, Ionosphere, and Climate satellites in 2006–2020, a global three‐dimensional ionospheric electron density model was constructed with a new concept. …”
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  20. 1200

    Analysis of Multifrequency GNSS Signals and an Improved Single-Epoch RTK Method for Medium-Long Baseline by Jian Chen, Jiahui Wang, Kaikun Zhang, Wei Duan, Xingwang Zhao, Chao Liu

    Published 2023-01-01
    “…In recent years, the quantity of visible satellites has increased significantly due to multiple satellite systems that leaped forward. …”
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