Results 31 to 40 of about 165,440 (288)

Determination of the Radius of the Ring Current in the Earth’s Core According to the Data of the INTERMAGNET Network Observatories

open access: yesApplied Sciences
The geomagnetic dynamo is currently considered the most likely source of the Earth’s main dipole field. However, the radius of the current ring located in the Earth’s core is not reliably known.
Ivan Vassilyev   +4 more
doaj   +1 more source

Accelerated Glacier Area Loss in the Zhetysu (Dzhungar) Alatau Range (Tien Shan) for the Period of 1956–2016

open access: yesRemote Sensing, 2023
An updated glacier inventory is important for understanding the current glacier dynamics in the conditions of actual accelerating glacier retreat observed around the world.
Serik Nurakynov   +8 more
doaj   +1 more source

Assessment of GRAS Ionospheric Measurements for Ionospheric Model Assimilation

open access: yesRemote Sensing, 2023
We conducted a study to assess the GNSS (Global Navigation Satellite System) Receiver for Atmospheric Sounding (GRAS) ionospheric data quality by processing Radio Occultation (RO) observations of ionospheric products. The main objective of the study is to validate ionospheric data generated at EUMETSAT, such as ionospheric bending angle profiles ...
M. M. Hoque   +8 more
openaire   +6 more sources

Long-Term Changes and Trends in the F2 Layer Critical Frequency over Alma-Ata (Kazakhstan)

open access: yesAtmosphere
The long-term variability and trends in the F2 layer critical frequency variations over Alma-Ata [43.25 N, 77.92 E] for the period 07.1957–04.2018 are studied using near-midday, near-midnight, and hourly median foF2 values.
Galina Gordiyenko   +3 more
doaj   +1 more source

A possible effect of atmospheric circulation in the daily variation of the earth's magnetic field [PDF]

open access: yes, 1963
The daily variation of the horizontal intensity of the earth's magnetic field at Honolulu exhibits seasonal features that are not related in a simple way to solar declination.
Wulf, Oliver Reynolds
core   +1 more source

Finding Minimum‐Cost Explanations for Predictions Made by Tree Ensembles

open access: yesSoftware: Practice and Experience, EarlyView.
ABSTRACT The ability to reliably explain why a machine learning model arrives at a particular prediction is crucial when used as decision support by human operators of critical systems. The provided explanations must be provably correct, and preferably without redundant information, called minimal explanations.
John Törnblom   +2 more
wiley   +1 more source

Operative center of the geophysical prognosis in Izmiran [PDF]

open access: yesAnnales Geophysicae, 2005
IZMIRAN was founded about 65 years ago with one of the goals of carrying out geomagnetic prognoses. More or less, this activity has been developed during its entire history, but about 6 years ago this aim became sufficiently feasible due to the ...
A. V. Belov   +5 more
doaj   +1 more source

Ionosphere Influenced From Lower-Lying Atmospheric Regions

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The ionosphere represents part of the upper atmosphere. Its variability is observed on a wide-scale temporal range from minutes, or even shorter, up to scales of the solar cycle and secular variations of solar energy input.
Petra Koucká Knížová   +8 more
doaj   +1 more source

DQN‐Guided Subset‐Induced OCSVM Kernel Approximation for Imbalanced Anomaly Detection

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Anomaly detection under limited normal data remains a fundamental challenge due to severe class imbalance and scarcity of anomalies. We propose a novel framework that reformulates support vector selection in One‐Class SVM as a sequential decision‐making problem.
Wenqian Yu, Jiaying Wu, Jinglu Hu
wiley   +1 more source

The STM32 microcontroller based pulse intensity registration system for the neutron monitor

open access: yesEPJ Web of Conferences, 2017
We present the outlines of a new microcontroller based data acquisition system which is aimed for reliable operation in a typical cosmic ray particle registration experiment.
Shepetov Alexander   +5 more
doaj   +2 more sources

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