Showing 2,081 - 2,100 results of 2,648 for search '"satellites"', query time: 0.08s Refine Results
  1. 2081

    Preparing Curve Number Map of Run-off and Investigating its Precision Using Hydrological Model (Case Study: Navdar Catchment) by Narjes Omidi, Bahman Farhadi, Samira Rahimi, Homayon Hesadi

    Published 2013-11-01
    “…First, land use map of the study area was determined based on Landsat satellite images (TM) using ERDAS software package. …”
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    Article
  2. 2082

    Effects of GNSS Receiver Tuning on the PLL Tracking Jitter Estimation in the Presence of Ionospheric Scintillation by K. Guo, M. Aquino, S. Vadakke Veettil

    Published 2020-07-01
    “…It can severely degrade the performance of Global Navigation Satellite System (GNSS) receivers, thus increasing positioning errors. …”
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    Article
  3. 2083

    Climatic study of dust phenomenon in Semnan province and calculation of vertical dust flux by using GOCART model by Sara Karami, Nasim Hossein Hamzeh, Abbas Ranjbar

    Published 2024-09-01
    “…For this purpose, meteorological stations data of the province and the aerosol optical depth of satellite product have been investigated. Also, GOCART model has been used to estimate the amount of dust emissions from this region and to determine the vertical dust flux in Semnan province. …”
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  4. 2084

    Dust Aerosols Detected Using a Ground-Based Polarization Lidar and CALIPSO over Wuhan (30.5°N, 114.4°E), China by Yun He, Fan Yi

    Published 2015-01-01
    “…The vertical distribution, horizontal range, and optical properties of Asian dust were obtained using a ground-based depolarization lidar and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) over a two-year measurement period (2010–2012) in Wuhan (30.5°N, 114.4°E), China. …”
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  5. 2085

    Influência da acurácia de completude na delimitação de áreas de preservação permanente by Mayara Soares de Sousa, Tony Vinicius Moreira Sampaio

    Published 2018-04-01
    “…This paper used techniques of Remote Sensing, photointerpretation and GIS to identify and quantify the existing springs in the watersheds of the Forquilha and Mirim Rivers, located in the Southwest of Paraná, in addition to delimited the Permanent Preservation Areas of springs and riverbanks of first order, using satellite imagery made available by Google in QGIS software version 2.16, using Open Layers Plugin tool. …”
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  6. 2086

    Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking by Zhibin Luo, Jicheng Ding, Lin Zhao

    Published 2018-01-01
    “…The global navigation satellite system (GNSS) has been widely used in both military and civil fields. …”
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  7. 2087

    High-Precision UAV Photogrammetry with RTK GNSS: Eliminating Ground Control Points by Mehmet Nurullah Alkan

    Published 2024-12-01
    “…That approach enables the operators to use the Global Navigation Satellite System (GNSS) more efficiently with the production of high-precision 3D Digital Terrain Models (DTMs). …”
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  8. 2088

    Reduced Order Probabilistic Emulation for Physics‐Based Thermosphere Models by Richard J. Licata, Piyush M. Mehta

    Published 2023-05-01
    “…We show that across the available data, TIE‐GCM ROPE has similar error to previous linear approaches while improving storm‐time modeling. We also conduct a satellite propagation study for the significant November 2003 storm which shows that TIE‐GCM ROPE can capture the position resulting from TIE‐GCM density with <5 km bias. …”
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    Article
  9. 2089

    Built environment and physical activity for the elderly: a systematic review of South Ame by Hermes Koller De Paiva, Édina Maria de Camargo, Rodrigo Siqueira Reis

    Published 2018-10-01
    “…It was concluded that the installation of PA facilities, as well as improved safety, can increase the LPA of the elderly. In addition, satellite image information and audits should be considered when evaluating the built environment. …”
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    Article
  10. 2090

    Monitoring Damage and Air Pollutant Parameters after Forest Fire: A Case Study of Çanakkale Fire by Özer Akyüre

    Published 2024-01-01
    “…The aerosol index and nitrogen dioxide (NO2) air pollution parameters, which indicate the concentration of pollutants emitted into the atmosphere after the fire, were monitored and their concentrations determined from satellite imagery. The highest NO2 concentration recorded was 0.02624702 mol/m² on August 24, the last day of the fire. …”
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  11. 2091

    Applications of the Atmospheric Transport and Diffusion of LES Modeling to the Spread and Dissipation of COVID-19 Aerosol Particles inside and outside the Japan National Stadium (T... by Takanori Uchida, Ryo Araya

    Published 2021-01-01
    “…Next, a model of the Japan National Stadium (Tokyo Olympic Stadium) was constructed using 3D detailed topographic Advanced World 3D Map (AW3D) data generated by combining high-resolution satellite images. We tried to reproduce the hypothetical spread and dissipation of the fluid layer (assuming the fluid layer contains COVID-19 particles) inside and outside of the Japan National Stadium using Airflow Analyst implemented with the RIAM-COMPACT analysis function for gas diffusion. …”
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  12. 2092

    Evaluating Proton Intensities for the SMILE Mission by Simon Mischel, Elena A. Kronberg, C. P. Escoubet

    Published 2024-12-01
    “…Our approach diverges from existing methodologies by offering a user‐friendly model that doesn't require specialized software, making it accessible for broader applications in satellite mission planning and risk assessment. The research segregates the data set into four distinct regions, each analyzed for proton intensity dynamics. …”
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  13. 2093

    Terminus thinning drives recent acceleration of a Greenlandic lake-terminating outlet glacier by Ed Holt, Peter Nienow, Encarni Medina-Lopez

    Published 2024-01-01
    “…Here, time series of satellite-derived observations of ice velocity, surface elevation, and terminus position were generated at a lake-terminating outlet glacier, Isortuarsuup Sermia, and the nearby land-terminating Kangaasarsuup Sermia in south-west Greenland. …”
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  14. 2094

    Retracted: Design and Performance Evaluation of OAM-Antennas: A Comparative Review by Omar A. Saraereh

    Published 2023-01-01
    “…For many communication systems, including wireless networks, mobile, satellite, radar, remote sensing, and many more applications, antenna arrays are very necessary. …”
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  15. 2095

    Mapping in the Oiapoque Indigenous Territories by Rosélis Remor de Souza Mazurek

    Published 2016-07-01
    “…The first mapping exercise was carried out through regional workshops with a selected group of indigenous (Indigenous Environmental Agents) using a georeferenced Landsat satellite image and drawing physical and cultural aspects of the territory over the images on paper. …”
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  16. 2096

    Elevated high-precision mapping and localization technology for periodic inspections by Xianghua Fan, Wenbo Pan

    Published 2025-02-01
    “…Abstract Due to the absence of Global Navigation Satellite System (GNSS) information within tunnels, mobile mapping systems encounter issues with cumulative errors, making it difficult to obtain precise absolute pose information. …”
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  17. 2097
  18. 2098

    Ionospheric Disturbances Generated by the 2015 Calbuco Eruption: Comparison of GITM‐R Simulations and GNSS Observations by J. Tyska, Y. Deng, S. Zhang, C. Y. Lin

    Published 2024-02-01
    “…In this study, Global Navigation Satellite System (GNSS) Total Electron Content (TEC) data are analyzed and compared to simulations performed by the Global Ionosphere‐Thermosphere Model with Local Mesh Refinement (GITM‐R) for the first phase of the 2015 Calbuco eruption that occurred on 22 April. …”
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  19. 2099

    Location services and technologies of 5G-Advanced network by Ming AI, Yunjing HOU, Runze ZHOU, Mao CAI

    Published 2022-06-01
    “…The Release15 (Rel-15) of the 5G standard developed by 3GPP only supports the location service requirements of emergency services.The standardization of 5G location service network architecture, network element functions, end-to-end process design, positioning reference signals, measurement quantities, measurement processes, etc, has been completed in Rel-16, which is the complete version of location services that supporting business scenarios.In Rel-17, further reduction of the location service delay and improving the positioning accuracy are achieved.The 3GPP will start Rel-18 location service and positioning study in 2022, which mainly includes further improving positioning performance index, such as lower delay, and lower power and higher accuracy positioning, and further expanding positioning functions, such as supporting sidelink positioning, user plane positioning and UE (user equipment) location verification optimization of satellite access scenarios.Based on the introduction of the status of Rel-15/Rel-16/Rel-17 location services, some potential key technologies for realizing Rel-18 location services were put forward and analyzed.Then, the summary that the positioning requirements of 6G network are higher accuracy support the positioning of higher speed scenarios and support more vertical industries and scenarios was pointed out.Artificial intelligence and terahertz communication will become potential key technologies to realize 6G higher accuracy location services.…”
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  20. 2100

    Utilization of NDVI, VTCI and WDI indices in analyzing the effects of drought severity and duration on vegetation density in Siminehrood catchment by Parviz zeaiean Firoozabadi

    Published 2020-12-01
    “…Various satellite remote sensing data, images and products have proven their place in drought, drought and agriculture studies since the production of this type of information resource. …”
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