Disease, Drought, and Warming: A Triple Threat to a Declining High-Elevation Amphibian. [PDF]
We developed a dynamic co‐occurrence occupancy model to explore the effects of climate change on the occupancy of boreal toads (Anaxyrus boreas) and the amphibian chytrid fungus (Batrachochytrium dendrobatidis, Bd) in the southern Rocky Mountains. We derived novel covariates to test hypotheses related to multi‐generational impacts of climate on the ...
Kissel AM +5 more
europepmc +2 more sources
Določitev primernega geodetskega datuma z uporabo robustnih statističnih metod ( = Definition of appropriate geodetic datum using robust statistical methods) [PDF]
The correct determination of geodetic datum is an obligatory condition for the proper determination of the point displacements. There are various methods of deformation analysis focused on the right identification of stable points, which ...
Aleš Marjetič, Klemen Kregar
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Določitev novega višinskega datuma Slovenije (=Determination of the new vertical datum of Slovenia) [PDF]
In this article, an overview of the height geodetic data of Slovenia that were determined on a basis of observations from various tide gauges along the Adriatic coast is presented.
Oskar Sterle, Božo Koler
doaj +1 more source
The review and development of a modern GNSS network and datum in Uzbekistan
This study is focused on the discussion of a modern GNSS network and datum in Uzbekistan. Considering the significance difference (up to 200 m) in positions of the local ellipsoidal datum and the global datum, the precise transformation parameters ...
Dilbarkhon Fazilova
doaj +1 more source
Estimation of strain accumulation of densification network in Northern Marmara Region, Turkey [PDF]
Strain analysis is one of the methods for the kinematic analysis of the repeated geodetic measurements. In order to derive strain accumulation in Marmara Region, different institutions carried out several Global Positioning System (GPS) campaigns in 1999
I. Deniz, H. Ozener
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Some problems in using global positioning system in our conditions
The paper points out some problems in using GPS in true field conditions. In particular, the paper describes importance of having a very good state network and its connection with the European reference frame (EUREF).
Branko Božić
doaj +1 more source
Modified method of deformation analysis according to the Munich approach
Despite the technical progress monitoring the stability of engineering structures remains one of the most difficult tasks in engineering geodesy. This article presents the deformation analysis according to the Munich approach of W. M. Welsch.
Simona Savšek, Tomaž Ambrožič
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Multi-epoch deformation analysis with geodetic datum invariance [PDF]
[EN] Multiple epochs of geodetic deformation observations in 1D, 2D or 3D with their covariance matrices can be adjusted using the least-squares method and tested for deformation hypotheses, using the author’s hypothesis constrained multi-epoch analysis ...
Velsink, Hiddo
core
From celestial objects to every feature on Earth, geodesy provides a reference frame and is the foundation for surveying, mapping, and other geoscience activities.
Shanker KC, Tri Dev Acharya
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Estimation of vertical datum offset for the South African vertical datum, in relation to the international height reference system [PDF]
The vertical offset and the geopotential value over South Africa is estimated on the four fundamental benchmarks in relation to the international height reference system (IHRS).
Matthews Siphiwe Mphuthi +1 more
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