Results 181 to 190 of about 7,005 (231)

European Union crop map 2022: Earth observation's 10-meter dive into Europe's crop tapestry. [PDF]

Sci Data
Ghassemi B, Izquierdo-Verdiguier E, Verhegghen A, Yordanov M, Lemoine G, Moreno Martínez Á, De Marchi D, van der Velde M, Vuolo F, d'Andrimont R.   +9 more
europepmc   +1 more source

Pixel 5 Versus Pixel 9 Pro XL-Are Android Devices Evolving Towards Better GNSS Performance? [PDF]

Sensors (Basel)
Tomaštík J, Hernández Olcina J, Saloň Š, Tunák D.   +3 more
europepmc   +1 more source

Combining a Standardized Growth Class Assessment, UAV Sensor Data, GIS Processing, and Machine Learning Classification to Derive a Correlation with the Vigour and Canopy Volume of Grapevines. [PDF]

Sensors (Basel)
Dillner RP, Wimmer MA, Porten M, Udelhoven T, Retzlaff R.   +4 more
europepmc   +1 more source

The role of wild bees and cavity-nesting wasps as ecological indicators of the last traditionally managed meadows in Eastern Europe. [PDF]

Ecol Evol
Demeter I, Lajos K, Balog A, Sárospataki M.   +3 more
europepmc   +1 more source

Analiza rezultatov transformacij med koordinatnima sistemoma ETRS89 in D48 na območju Slovenske obale

, 2007
openaire   +1 more source

A range of ED50-ETRS89 datum transformation models tested on the Spanish geodetic network

Survey Review, 2006
AbstractA set of datum transformation models for performing ED50-ETRS89 datum transformation in Spain are presented. These comprise 5/7 parameters, complex and real polynomials and distortion modelling. The latter case includes several tests using external points for the three methods explored: Rubber Sheeting, Minimum Curvature Surfaces and Least ...
J. González-Matesanz, A. Dalda, J.A. Malpica   +2 more
openaire   +2 more sources

Implementation of the ETRS89 in Europe: Current Status and Challenges

, 2015
The EUREF (Reference Frame Sub-Commission for Europe) Permanent GNSS Network (EPN) serves as the backbone for the realization of, and access to, the European Terrestrial Reference System (ETRS89). The cumulative site positions and velocities for the EPN stations are used for national ETRS89 densifications and geo-information applications.
Bruyninx, C., Altamimi, Z., Brockmann, E., Caporali, A., Dach, R., Dousa, J., FERNANDES AVELINE, ROBERTA, Gianniou, M., Habrich, H., Ihde, J., Jivall, L., Kenyeres, A., Lidberg, M., Pacione, R., Poutanen, M., Szafranek, K., Söhne, W., Stangl, G., Torres, J., Völksen, C.   +19 more
openaire   +2 more sources

Datum transformation by Gauss projection of the ellipsoid onto the sphere and bilinear function of complex variable: An application to ETRS89–ED50

Applied Mathematics and Computation, 2008
In this paper a simple method for accurate transformation of geodetic coordinates is presented. The process uses the regional network of points allocated in both geodetic systems researching only the two-dimensional problem (longitude and latitude). Basically, transformation of any point P consists to determine first the three network vertexes nearest ...
J.B. Mena
openaire   +2 more sources

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Local to ETRS89 datum transformation for Slovenia: triangle-based transformation using virtual tie points

Survey Review, 2013
The present paper presents a geodetic datum transformation between the old and new national coordinate reference systems of Slovenia. The basis for transformation is a set of about 2000 points coordinated in both systems. Virtual tie points are used, which form a regular triangular network covering the entire country.
S Berk, Ž Komadina
openaire   +1 more source

Systematical Analysis of the Transformation Between Gauss-Krueger-Coordinate/DHDN and UTM-Coordinate/ETRS89 in Baden-Württemberg with Different Estimation Methods

2009
For the concrete “Introduction of ETRS89 into Baden-Wurttemberg” the transformation which transforms the existing two-dimensional Gauss-Krueger coordinates in German geodetic reference system (DHDN) into UTM coordinates in the ETRS89 datum with the models of the 7-parameter Helmert transformation and the 6-parameter affine transformation using the 131 ...
Jianqing Cai, Erik W. Grafarend
openaire   +1 more source