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1521
As temperaturas intraurbanas: exemplos do Brasil e de Portugal
Published 2011-11-01“…This research aims to analyze the differences in summer intra urban temperatures through Landsat 7 satellite thermal images in two medium-sized cities at different latitudes: Porto (Portugal) and Presidente Prudente (Brazil). …”
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1522
A 12 GHz 30 mW 130 nm CMOS Rotary Travelling Wave Voltage Controlled Oscillator
Published 2012-01-01“…The phase noise and power consumption performances were compared with the literature and with telecommunication standards for broadcast satellite applications. The RTW VCO exhibits a −106 dBc/Hz at 1 MHz and a 30 mW power consumption with a sensibility of 400 MHz/V. …”
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1523
Low Profile, Dual-Polarised Antenna for Aeronautical and Land Mobile Satcom
Published 2009-01-01“…High data rate communications on the move is fastly becoming a major application area for satellite systems using Ku- and higher frequency bands. …”
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1524
Aging dams, political instability, poor human decisions and climate change: recipe for human disaster
Published 2025-01-01“…In Derna, Libya, a record-breaking storm and subsequent dam failures on September 10, 2023, caused over 11,000 deaths. Analyzing satellite data from 2016–2023, we found 1.8 mm/yr of differential settlement in dams contributed to their failure, and flooding damaged ~8570 buildings. …”
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1525
Audouin Dollfus, astronome du XX$^{\protect \mathrm{e}}$ siècle
Published 2023-08-01“…In particular, he discovered Saturn’s satellite Janus, determined the composition of the soil on Mars, detected atmospheric residue on Mercury and helped choose the landing site for the Apollo 11 mission, which enabled Neil Armstrong to set foot on the Moon for the first time. …”
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1526
Narkomfin’s new life. A ‘prosthesis’ for Ginzburg and Milinis’s masterpiece
Published 2021-06-01“…The article’s object is to recover the original purpose of the Narkomfin through a satellite architecture that embraces some of the functions no longer in use in the famous building by Ginzburg and Milinis, thus renewing its role as a ‘social condenser’ in contemporary post-Soviet Moscow. …”
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1527
Field Observations During the Fourth Microwave Water and Energy Balance Experiment (MicroWEX-4): from March 10 - June 14, 2005
Published 2019-05-01“… The goal of MicroWEX-4 was to understand the land-atmosphere interactions during the growing season of corn, and their effect on observed microwave brightness signatures at 6.7 GHz, matching that of the satellite based microwave radiometer, AMSR. This document is Circular 1482, one of a series of the Department of Agricultural and Biological Engineering, UF/IFAS Extension. …”
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1528
Estimation of Biomass Burning Influence on Air Pollution around Beijing from an Aerosol Retrieval Model
Published 2014-01-01“…We investigate heavy haze episodes (with dense concentrations of atmospheric aerosols) occurring around Beijing in June, when serious air pollution was detected by both satellite and ground measurements. Aerosol retrieval is achieved by radiative transfer simulation in an Earth atmosphere model. …”
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1529
Postflight Data Processing Instructions on the Use of Unmanned Aerial Vehicles (UAVs) for Agricultural Applications
Published 2019-11-01“… Remote sensing applications for agriculture often require periodically collected high-resolution data, which are difficult to obtain by manned flights or satellite imagery. This 6-page document provides guidance on the use of post-processing software to visualize data collected by unmanned aerial vehicles (UAVs) for agricultural applications. …”
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1530
Field Observations During the Fourth Microwave Water and Energy Balance Experiment (MicroWEX-4): from March 10 - June 14, 2005
Published 2019-05-01“… The goal of MicroWEX-4 was to understand the land-atmosphere interactions during the growing season of corn, and their effect on observed microwave brightness signatures at 6.7 GHz, matching that of the satellite based microwave radiometer, AMSR. This document is Circular 1482, one of a series of the Department of Agricultural and Biological Engineering, UF/IFAS Extension. …”
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1531
Postflight Data Processing Instructions on the Use of Unmanned Aerial Vehicles (UAVs) for Agricultural Applications
Published 2019-11-01“… Remote sensing applications for agriculture often require periodically collected high-resolution data, which are difficult to obtain by manned flights or satellite imagery. This 6-page document provides guidance on the use of post-processing software to visualize data collected by unmanned aerial vehicles (UAVs) for agricultural applications. …”
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1532
Study on interference problems between 5G base stations and adjacent frequency systems
Published 2021-11-01“…For the interference problems in frequency sharing and geographical coexistence between 5G base stations and the adjacent frequency systems such as satellite earth stations, the different situations consisting of the interferences to 5G base stations and the interferences to other stations were analyzed, and the solutions to improve interference positioning efficiency including analyzing the same frequency signal using real-time spectrum function, identifying the signal using 5G NR demodulation function, and locating the interference source combined with same-frequency multiple radio source positioning method were presented.…”
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1533
Methodology of determining of the transfer function of engagement kinematics of accelerations of an aircraft and its elliptic coordinates in alternative representation
Published 2021-10-01“…The key feature of the hyperbola navigation method is the ability to reduce the number of navigation positions by one when the on-board navigation equipment operates in a passive mode, carrying out only the reception of navigation information, like consumers of satellite navigation information.…”
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1534
Spatiotemporal Distribution Characteristics of Mesoscale Convective Systems Producing Short-Duration Heavy Rainfall over the Tianshan Mountain Area
Published 2019-01-01“…Based on hourly precipitation data and FY-2 satellite infrared (IR) digital satellite imagery collected during the warm season from 2005 to 2015 in the Tianshan Mountains and the adjacent areas in Xinjiang, China, the definition of mesoscale convective systems (MCSs) was revised based on short-duration heavy precipitation processes. …”
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1535
Effect of Lockdown due to COVID-19 on the Aerosol and Trace Gases Spatial Distribution over India and Adjoining Regions
Published 2020-10-01“…Using Ozone Monitoring Instrument (OMI) satellite measurements, we found a 50–60% reduction in the mean tropospheric columnar Nitrogen dioxide (NO2) and planetary boundary layer Sulphur dioxide (SO2) levels over India and adjoining regions during the lockdown (25 March–7 April 2020) compared to the pre-lockdown periods (8–21 March 2020). …”
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1536
Statistical characteristics and classification of ionospheric mid-latitude trough as revealed by the observations of DMSP-F18
Published 2025-01-01“…Statistical characteristics and the classification of the topside ionospheric mid-latitude trough are systemically analyzed, using observations from the Defense Meteorological Satellite Program F18 (DMSP-F18) satellite. The data was obtained at an altitude of around 860 km in near polar orbit, throughout 2013. …”
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1537
Water Quality Variations in the Lower Yangtze River Based on GA-RF Model From GF-1, Landsat-8, and Sentinel-2 Images
Published 2025-01-01“…The results indicate that the three-satellite GA-RF joint model shows the best estimation performance from the in-situ measurements: TP with MAE 0.0108 and RMSE 0.0132, and TN with MAE 0.32 and RMSE 0.40. …”
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1538
Assessment and Validation of Three Ionospheric Models (IRI‐2016, NeQuick2, and IGS‐GIM) From 2002 to 2018
Published 2020-06-01“…In this contribution, International Global Navigation Satellite System Global Ionospheric Maps (IGSG) and two empirical models, that is, NeQuick2 and IRI‐2016, are assessed in detail by applying different assessment methods, for example, Jason2/3 ionospheric data, difference of Slant Total Electron Content (dSTEC) data derived from Global Navigation Satellite System (GNSS) phase observation, and single‐frequency precise point positioning. …”
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1539
Synthesis‐Style Auto‐Correlation‐Based Transformer: A Learner on Ionospheric TEC Series Forecasting
Published 2023-10-01“…Abstract Accurate 1‐day global total electron content (TEC) forecasting is essential for ionospheric monitoring and satellite communications. However, it faces challenges due to limited data and difficulty in modeling long‐term dependencies. …”
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1540
High‐Latitude Electrodynamics Specified in SAMI3 Using AMPERE Field‐Aligned Currents
Published 2022-01-01“…The results indicate that the 66‐satellite Iridium constellation provides sufficient resolution of FACs to estimate large‐scale ionospheric convection as it impacts TEC.…”
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