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161
The emergence of a dipole-like mode in Arctic atmospheric circulation conducive to European heat waves
Published 2025-02-01“…However, the impact of Arctic sea ice decline on changes in Arctic atmospheric circulation and its implications for mid-latitude summers remain unclear. Here we propose that the emergence of a dipole-like mode of Arctic atmospheric circulation, driven by the Arctic sea ice decline, is linked to the intensification of temperature rise and increased European heat waves. …”
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162
Integrity Monitoring Technology of Mixed Constellation of High, Medium and Low Orbit Navigation Based on Genetic Algorithm Star Selection
Published 2023-12-01“…Low-orbit satellites are widely used in communication, navigation, remote sensing and other fields, which is of great significance to meet the needs of communication and improve the accuracy of navigation and positioning.Integrity technology is an important guarantee for the safe and reliable operation of satellite navigation system.With the mature development of low orbit technology and the gradual application of a large number of low orbit satellites, it is urgent to develop the system integrity monitoring technology under the condition of mixed constellation of high and low orbits.This paper proposed a hybrid constellation integrity monitoring technology for high, middle and low orbit navigation based on genetic algorithm for star selection.On the basis of the traditional optimal geometric accuracy factor selection method, genetic algorithm was introduced to construct a fitness factor based on the linear weighted feature slope of the satellite geometric observation matrix, so as to achieve rapid convergence of user protection level to protection limit.This method further improved the integrity of the receiver by optimizing the way of star selection.Under the accuracy requirement of CAT I, for the "BeiDou+StarNet-1" constellation, the global availability level of the proposed algorithm was 5.60%, and the enhancement effect was the best for the mid-latitude and low-latitude of the Eastern Hemisphere, which were increased by 7.01% and 6.42%, respectively.…”
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163
Measurement of the Characteristics of TIDs Using Small and Regional Networks of GPS Receivers during the Campaign of 17–30 July of 2008
Published 2012-01-01“…This scientific report presents the results of a dedicated experiment that was conducted within the framework of the Low-latitude ionospheric Sensor Network (LISN) observatory to measure the characteristics of medium-scale (hundreds of km) Traveling Ionospheric Disturbances (TIDs) as they transit through the low-latitude ionosphere. …”
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164
Smart Bracelet for Tracking the Location of Dementia Patients
Published 2024-12-01“…The patient's location is pinpointed by the intersection of latitude and longitude coordinates. The device has a minimal margin of error, with a latitude error of 0.003% and a longitude error of 0.008%.…”
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165
Geomagnetic Disturbances Due To Neutral‐Wind‐Driven Ionospheric Currents
Published 2024-03-01“…During the recovery phase when the ion‐convection pattern retreats to high latitudes, neutral‐wind driven currents become the primary sources for GMDs at middle latitudes on the dayside due to the “flywheel” effect and the large dayside conductance. …”
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166
Atlantic overturning inferred from air-sea heat fluxes indicates no decline since the 1960s
Published 2025-01-01“…Instead, we find that air-sea heat flux anomalies north of any given latitude in the North Atlantic between 26.5°N and 50°N are tightly linked to the AMOC anomaly at that latitude on decadal and centennial timescales. …”
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167
Upper Oligocene to Pleistocene planktonic foraminifera stratigraphy at North Atlantic DSDP Site 407, Reykjanes Ridge: diversity trends and biozonation using modern Neogene taxonomi...
Published 2025-01-01“…Assemblages with an increasingly high-latitude nature, i.e. where <i>N. pachyderma</i> dominates, take over in the lower Pleistocene. …”
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168
Pathogenic potential of ornithogenic <i>Escherichia coli</i> strains detected in the Earth's polar regions
Published 2024-12-01“…Migratory bird colonies and high latitude avian colonies may be points of active intraspecies and interspecies contact between different animal species, accompanied by the spread of pathogens. …”
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169
Projection the Extreme Temperatures of Iran's Cold Season Using a Multi-Model Hamadi System with Socio-Economic Scenarios of CMIP6 Models.
Published 2023-03-01“…The minimum temperature will increase significantly compared to the maximum temperature in the base period. The country's latitude will play a major role in the country's maximum temperature distribution, and the minimum temperature distribution will also be influenced by the country's major altitudes and latitude.…”
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170
Northern Hemisphere sea ice variability in a transient CGCM simulation of the past 2.6 Ma
Published 2025-01-01“…We find that the Earth’s axial tilt (obliquity) and axial wobble (precession) strongly influence the variability in high-latitude (>70° N) perennial sea ice and mid-latitude (35° N–70° N) seasonal sea ice, respectively, by modifying the net surface shortwave radiation. …”
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171
Geographical prevalence and risk factors for pterygium: a systematic review and meta-analysis
Published 2013-11-01“…We found a trend that the higher pooled prevalence of pterygium was associated with increasing geographical latitude and age in the world. The pooled OR was 2.32 (95% CI 1.66 to 3.23) for the male gender and 1.76 (95% CI 1.55 to 2.00) for outdoor activity, respectively.Conclusions The pooled prevalence of pterygium was relatively high, especially for low latitude regions and the elderly. …”
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172
The Sanya Incoherent Scatter Radar Tristatic System and Initial Experiments
Published 2024-09-01“…Abstract Low latitude ionosphere experiences complex dynamical and electrodynamical processes, which make the spatiotemporal variations of the corresponding electron density complicated and therefore influence trans‐ionosphere radio communications. …”
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173
Error Compensation for Dead Reckoning Based on SVM
Published 2024-12-01“…The error compensation model takes seven parameters as input: pitch angle, roll angle, course angle, forward, right, and upward velocity of the Doppler velocity log(DVL) relative to the ground, and dead reckoning time of the AUV. The difference in latitude and longitude provided by the global positioning system(GPS) and inertial navigation system(INS) + DVL combination compared with latitude and longitude obtained from dead reckoning serves as the output of the model. …”
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174
Data Assimilation of Ion Drift Measurements for Estimation of Ionospheric Plasma Drivers
Published 2024-09-01“…Results show improvements in performance at mid‐latitudes by augmenting electron density rates with 3D spatially distributed line‐of‐sight ion drift measurements, with negligible improvements to low and high latitude estimations. …”
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175
Protein Quality of African Locust Bean—A High-Value Gathered Tree Food Contributing Protein and Palatability to Plant-Based Diets
Published 2024-01-01“…The results indicate no correlation between phytochemical parameters and geographic variables of latitude and elevation, suggesting that management and processing may contribute more to nutritional quality than product provenance. …”
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176
3‐D Ionospheric Imaging Over the South American Region With a New TEC‐Based Ionospheric Data Assimilation System (TIDAS‐SA)
Published 2024-02-01“…TIDAS‐SA can produce a reanalyzed three‐dimensional (3‐D) electron density spatial variation with a high time cadence, yielding spatial‐temporal resolution of 1° (latitude) × 1° (longitude) × 20 km (altitude) × 5 min. …”
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177
Survey to Evaluate Escape of Eucalyptus spp. Seedlings from Plantations in Southeastern USA
Published 2013-01-01“…The most predictive variable evaluated was latitude, with 27°N being the highest latitude at which seedlings established with regularity. …”
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178
Assessment of Using Field‐Aligned Currents to Drive the Global Ionosphere Thermosphere Model: A Case Study for the 2013 St Patrick’s Day Geomagnetic Storm
Published 2022-09-01“…Abstract In this study, field‐aligned currents (FACs) obtained from the Active Magnetosphere and Planetary Electrodynamics Response Experiment data set have been used to specify the high‐latitude electric potential in the Global Ionosphere Thermosphere Model (GITM). …”
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179
Effects of Different Vegetation Zones on CH4 and N2O Emissions in Coastal Wetlands: A Model Case Study
Published 2014-01-01“…This study used a DNDC model to simulate current and future CH4 and N2O emissions of coastal wetlands in four sites along the latitude in China. The simulation results showed that different vegetation zones, including bare beach, Spartina beach, and Phragmites beach, produced different emissions of CH4 and N2O in the same latitude region. …”
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180
Preliminary Assessment of Methane Concentration Variation Observed by GOSAT in China
Published 2015-01-01“…However, comparing to paddy area in the same latitude zone, Sichuan Basin shows a relatively higher XCH4 value during the winter of noncultivation period when the emissions from rice paddies are weak and surface air temperature is low. …”
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