Results 31 to 40 of about 7,057 (207)

Metodología de diseño, observación y cálculo de redes geodésicas exteriores para túneles de gran longitud = Methedology for designing, observing and computing external geodetic networks of long lengths tunnels [PDF]

open access: yes, 2014
RESUMEN: La realización de túneles de gran longitud para ferrocarriles ha adquirido un gran auge en los últimos años. En España se han abordado proyectos de estas características, no existiendo para su ejecución una metodología completa y contrastada de
Herrero Tejedor, Tomás Ramón   +2 more
core   +5 more sources

Challenges and Harmonization of Local Datum Transformations within the Coordinate Reference Systems of North Macedonia [PDF]

open access: yesMicro, Macro & Mezzo Geoinformation
Accurate, reliable, and interoperable coordinate reference systems (CRS) form the basis of all modern geospatial, surveying, engineering, and cadastral activities.
Zoran Cvetkovski, Nikola Ribaroski
doaj   +1 more source

State of heavy metals pollution of flooded agricultural land in the North part of Republic of Srpska [PDF]

open access: yesAgroznanje, 2016
This paper presents the results of the research of soil contamination in flooded area located at the confluence of Bosna and Sava rivers. The sampling was performed according to a network of points Etrs89 reference European Network based on grid points ...
Predić Tihomir   +3 more
doaj   +1 more source

An All-in-One Application for Temporal Coordinate Transformation in Geodesy and Geoinformatics

open access: yesISPRS International Journal of Geo-Information, 2020
Over the years, Global Navigation Satellite Systems (GNSS) have been established in the geosciences as a tool that determines the positions of discrete points (stations) on the Earth’s surface, on global to local spatial scales in a very simple and ...
Antonio Banko   +3 more
doaj   +1 more source

Habitat complexity and prey composition shape an apex predator's habitat use across contrasting landscapes

open access: yesEcography, EarlyView.
The spatial ecology of stalk‐and‐ambush predators like the Eurasian lynx Lynx lynx depends on prey availability and environmental features, yet the relative roles of these factors remain unclear at large spatial scales. In this study, we analysed lynx habitat use across central and southern Finland using snow‐track data from the Wildlife Triangle ...
Francesca Malcangi   +4 more
wiley   +1 more source

Reference frames and reference networks

open access: yesGeodesy and Cartography, 2015
The summary of research activities concerning reference frames and reference networks performed in Poland in a period of 2011-2014 is presented. It contains the results of research on implementation of IUGG2011 and IAU2012 resolutions on reference ...
Bosy Jaroslaw, Krynski Jan
doaj   +1 more source

Comparison Workshop on a European Digital Elevation Model [PDF]

open access: yes, 2009
This document is the report of the Comparison Workshop on a European Digital Elevation Model Co-organised by the GMES Bureau (EC, DG Enterprise and Industry) and the Institute for Environment and Sustainability (EC, DG Joint Research Centre), Stresa ...
DUFOURMONT Hans Antoon Alfons   +4 more
core   +1 more source

Projected Evolution of Climatic Aridity in Spain: Robust Signals and Model Uncertainties

open access: yesInternational Journal of Climatology, EarlyView.
This study examines the projected evolution of climatic aridity in Spain throughout the 21st century, using the UNEP Aridity Index and CMIP6 simulations under different emission scenarios and global warming levels. Despite model biases, results show a general increase in aridity across the country, particularly in southern regions and the Canary ...
Víctor Trullenque‐Blanco   +5 more
wiley   +1 more source

Urbanisation and human activities influence the co‐occurrence of red squirrels Sciurus vulgaris and meso‐carnivores in Berlin, Germany

open access: yesWildlife Biology, EarlyView.
Urban expansion is a major driver of habitat fragmentation, shrinking wildlife habitat, and restricting wildlife movements and activity patterns. In this novel environment, species must adapt to the new composition of wildlife communities. For example, red squirrels Sciurus vulgaris are commonly found in urban environments, while their potential ...
Josefa Vergara Stuardo   +2 more
wiley   +1 more source

High-Resolution UAV RGB Imagery Dataset for Precision Agriculture and 3D Photogrammetric Reconstruction Captured over a Pistachio Orchard (Pistacia vera L.) in Spain

open access: yesData, 2022
A total of 248 UAV RGB images were taken in the summer of 2021 over a representative pistachio orchard in Spain (X: 341450.3, Y: 4589731.8; ETRS89/UTM zone 30N). It is a 2.03 ha plot, planted in 2016 with Pistacia vera L. cv.
Sergio Vélez   +4 more
doaj   +1 more source

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