ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Biology
Geology
Technology
Agronomy and forestry
Geography
Physical
Research
Education
Environment
Oceanography
all records (76)

Languages
English
Spanish
Portuguese
German
French

Countries
Indonesia
USA
Brazil
Italy
Romania
Ukraine
Spain
South Africa
Canada
Mexico
all records (81)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (24)

Filter  
 
10.670  Articles
1 of 1.067 pages  |  10  records  |  more records»
onospheric soundings carried out at the same site and simultaneously with GPS measurements could contribute to the better understanding of the variations of the total electron content. However, for this purpose the total electron content deduced from GPS ... see more

Consistency assessment permits to study road safety regarded to speed. There exist several speed-geometry models that assessed isolated components of roads, which are used for consistency assessment of single elements of roads. For instance, single horizo... see more

The total electron content (TEC) derived from two Global Positioning System (GPS) receivers localized at Palmas (PAL, 10.2oS, 48.2oW, dip latitude 5.5oS), near equatorial region, and São José dos Campos (SJC, 23.2oS, 45.9oW, dip latitude 17.6oS), under th... see more

We analyze more than 10 years of Global Positioning System (GPS) height residuals and vertical displacements predicted from surface mass loading observed by the Gravity Recovery and Climate Experiment (GRACE) for 36 International GNSS Service (IGS) statio... see more

This short-term work characterized the upper and lower levels of the atmosphere through Global Positioning System (GPS) measurements. The observations were conducted during the 2009 equinoxes from two pairs of conjugate polar observing stations: Husafell,... see more

The results of an experiment aimed at evaluating the effects of the ionosphere on GPS positioning applications are presented in this paper. Specifically, the study, based upon a differential approach, was conducted utilizing GPS measurements acquired by v... see more

In the present paper we provide an overview of a long term research project aimed at setting up a suitable platformfor measurements in the atmospheric boundary layer on a light airplane along with some preliminary resultsobtained from fi eld campaigns at ... see more

The single layer model of GPS ionospheric data processing is compared with the International Reference Ionosphere í 1990 and the attached Diffusive Equilibrium model of Plasmasphere (IRI-90+DEP) which proved to be a good supplement to GPS data processing.... see more

The IEN Galileo Ferraris uses GPS for time and frequency synchronization. To obtain high performance it is important to reduce the error due to the ionospheric time-delay in GPS measurements. Evaluations of TEC in the direction of GPS satellites, obtained... see more

1 of 1.067 pages  |  10  records  |  more records»