Results 1 to 10 of about 24,343 (191)

No evidence for the use of magnetic declination for migratory navigation in two songbird species. [PDF]

open access: yesPLoS ONE, 2020
Determining the East-West position was a classical problem in human sea navigation until accurate clocks were manufactured and sailors were able to measure the difference between local time and a fixed reference to determine longitude.
Nikita Chernetsov   +4 more
doaj   +2 more sources

Research on WMM-00 geomagnetic field model accuracy in Lithuanian territory

open access: yesGeodesy and Cartography, 2012
The development of surveying technology gives the possibility for a detailed exploration of physical processes on the Earth’s surface. The satellite geomagnetic surveys, the precise geomagnetic surveys in magnetic observatories, the measurement at repeat
Romuald Obuchovski
doaj   +5 more sources

Changes in the level of magnetic declination in the Adriatic from 1806 to 1995 – a contribution to the history of Adriatic seafaring [PDF]

open access: yesGeodetski Glasnik, 2017
The paper analyzes changes in magnetic declination in the Adriatic Sea from the first measurements in 1806 to the latest isogonic charts from 1995. The basis of analysis are data provided by the Adriatic pilot books as literature that mariners used as an
Mithad Kozličić, Sanda Uglešić
doaj   +1 more source

Magnetic storm and term‐day observations at the Prague observatory Clementinum in the mid‐19th century

open access: yesGeoscience Data Journal, 2023
Magnetic observations at the Clementinum Observatory were started in July 1839 and data up to 1917 were published in yearbooks. In addition to regular daily observations with a typical 2‐hr time step, two categories of data with a higher cadence were ...
Pavel Hejda   +2 more
doaj   +1 more source

Measurement experiences with FluxSet digital D/I station [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2017
Geomagnetic observatories use classical theodolites equipped with single-axis flux-gate magnetometers known as declination–inclination magnetometers (DIM) to determine absolute values of declination and inclination angles.
L. Hegymegi   +3 more
doaj   +1 more source

Differences in geographical coordinates of minefields in Colombia according to their acquisition method

open access: yesLogos Ciencia & Tecnología, 2023
The scourge of explosive devices such as landmines, improvised explosive devices and unex-ploded ordnance, a product of armed conflicts in several countries around the world, has set a great precedent in the violation of fundamental human rights.
Luis Alberto Herrera Martínez   +1 more
doaj   +1 more source

Magnetic Declination [PDF]

open access: yesTransactions of the Royal Society of Edinburgh
n ...
  +6 more sources

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