scholarly journals A new neutron monitor at the Juan Carlos I Spanish Antarctic Station (Livingston Island-Antarctic Peninsula)

2021 ◽  
pp. 149-154
Author(s):  
Juan José Blanco ◽  
Óscar García Población ◽  
Juan Ignacio García Tejedor ◽  
Sindulfo Ayuso ◽  
Alejandro López-Comazzi ◽  
...  
Keyword(s):  
Data Base ◽  
Antarctic Peninsula ◽  
Neutron Monitor ◽  
Muon Telescope ◽  
Livingston Island ◽  
La Mancha ◽  
Neutron Monitor Data ◽  
The Antarctic ◽  
Monitor Data ◽  
Future Plans

Last January 2019, a new neutron monitor was installed at Juan Carlos I Spanish Antarctic Station (62º 39’ 46’’ S, 60º23’20’’ W, 12 m asl) located in Livingston Island (South Shetland Archipelago) close to the Antarctic Peninsula. The vertical rigidity cut-off for this new station is estimated as 3.52 GV. This new station (ORC) is composed of a BF3-based 3NM64 (ORCA) and 3 bare BF3 counters (ORCB). The neutron monitor is complemented by a muon telescope sharing a common room in a single stack. ORCA and ORCB with the Castilla-La Mancha neutron monitor (CaLMa) are the Spanish contributions to the Neutron Monitor Data Base. Because Juan Carlos I station is a summer station, one minute data is providing once a day during the Antarctic summer. One hour data are sent once a day during Antarctic winter. First measurements and future plans are provided in this work.

scholarly journals Multitaper spectral analysis of cosmic rays São Martinho da Serra's muon telescope and Newark's neutron monitor data

2007 ◽  
Vol 25 ◽  
pp. 163-167 ◽  
Author(s):  
Marlos Rockenbach da Silva ◽  
Walter Demetrio Gonzalez Alarcon ◽  
Ezequiel Echer ◽  
Alisson Dal Lago ◽  
Luis Eduardo Antunes Vieira ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Cosmic Rays ◽  
Neutron Monitor ◽  
Muon Telescope ◽  
Neutron Monitor Data ◽  
Monitor Data

scholarly journals Method of automatic correction of neutron monitor data for precipitation in the form of snow in real time

2021 ◽  
Vol 7 (3) ◽  
pp. 120-126
Author(s):  
Valery Yanchukovsky ◽  
Vasiliy Kuz'menko
Keyword(s):  
Snow Cover ◽  
Real Time ◽  
Neutron Monitor ◽  
Count Rate ◽  
Continuous Monitoring ◽  
Laser Rangefinder ◽  
Flux Intensity ◽  
Time Correction ◽  
Neutron Monitor Data ◽  
Monitor Data

We have carried out an experimental study of the influence of precipitation in the form of snow on measurements of the neutron flux intensity near Earth's surface. We have examined the state of the snow cover and its density, and found out that the density depends on the depth of the snow cover. Using the experimental results, we estimate the neutron absorption path in the snow. Changes in snow cover by 10–12 cm at a depth of 80 cm are shown to cause variations in the monitor count rate with an amplitude of 0.9 %. At the snow depth of 80 cm, the neutron monitor count rate decreases by about 8 %. The observed variations should be attributed to the meteorological effects of cosmic rays. The absorption coefficient of neutrons in the snow was also found from the correlation between the count rate of the neutron monitor and the amount of snow above the detector. We propose a real-time correction of the neutron monitor data for precipitation in the form of snow. For this purpose, we implement continuous monitoring of the amount of snow cover. The monitoring is provided by a snow meter made using a laser rangefinder module. We discuss the results obtained.

Investigation on contribution of neutron monitor data to estimation of aviation doses

2016 ◽  
Vol 11 ◽  
pp. 24-28 ◽  
Author(s):  
M. Kákona ◽  
O. Ploc ◽  
D. Kyselová ◽  
J. Kubančák ◽  
R. Langer ◽  
...  
Keyword(s):  
Neutron Monitor ◽  
Neutron Monitor Data ◽  
Monitor Data

New trigonioid bivalves from the Early Jurassic to earliest Cretaceous of the Antarctic Peninsula region: systematics and austral paleobiogeography

1995 ◽  
Vol 69 (1) ◽  
pp. 66-84 ◽  
Author(s):  
Simon R. A. Kelly
Keyword(s):  
New Zealand ◽  
Antarctic Peninsula ◽  
Southern Africa ◽  
Late Jurassic ◽  
Early Jurassic ◽  
South Shetland Islands ◽  
Shetland Islands ◽  
Livingston Island ◽  
History Of ◽  
The Antarctic

New discoveries of trigonioid bivalves are documented from three areas in the Antartic Peninsula: the Fossil Bluff Group of Alexander Island, the Latady Formation of the Orville Coast, and the Byers Group of Livingston Island, South Shetland Islands. Eleven taxa are described, representing six genera or subgenera. The faunas are characterized by genera including Vaugonia (Vaugonia), the first Early Jurassic trigonioid recognized on the continent; Vaugonia (V.) and V. (Orthotrigonia?) in the Late Jurassic; and Iotrigonia (Iotrigonia), Myophorella (Scaphogonia), and Pterotrigonia (Pterotrigonia), which span the Jurassic–Cretaceous boundary, reaching the Berriasian stage. The following species are new: Pterotrigonia (P.) cramei n. sp., Pterotrigonia (P.) thomsoni n. sp., Vaugonia (V.) orvillensis n. sp., and V. (Orthotrigonia?) quiltyi n. sp. The faunas show affinities with those of New Zealand and southern Africa. Trigonioids characterize the shallower marine biofacies in the Jurassic of the Antarctic and reflect the principal shallowing events in the history of the region.

scholarly journals New Method of Assessment of the Integral Fluence of Solar Energetic (> 1 GV Rigidity) Particles from Neutron Monitor Data

Solar Physics ◽  
2019 ◽  
Vol 294 (7) ◽  
Author(s):  
Sergey A. Koldobskiy ◽  
Gennady A. Kovaltsov ◽  
Alexander L. Mishev ◽  
Ilya G. Usoskin
Keyword(s):  
Neutron Monitor ◽  
New Method ◽  
Neutron Monitor Data ◽  
Method Of Assessment ◽  
Monitor Data

The effect of the thunderstorm activity on the tien shan neutron monitor data

2009 ◽  
Vol 73 (3) ◽  
pp. 394-396 ◽  
Author(s):  
V. P. Antonova ◽  
A. V. Gurevich ◽  
K. P. Zybin ◽  
A. N. Karashtin ◽  
S. V. Kryukov ◽  
...  
Keyword(s):  
Neutron Monitor ◽  
Thunderstorm Activity ◽  
Tien Shan ◽  
Neutron Monitor Data ◽  
Monitor Data

Rigidity Dependence of Forbush Decreases

1992 ◽  
Vol 10 (1) ◽  
pp. 24-26 ◽  
Author(s):  
M. L. Duldig ◽  
J. E. Humble
Keyword(s):  
Energy Range ◽  
Neutron Monitor ◽  
Forbush Decrease ◽  
Forbush Decreases ◽  
Neutron Monitor Data ◽  
Monitor Data ◽  
Rigidity Dependence

AbstractIna recent paper, Lockwood et al. (1991) have used IMP spacecraft and Neutron Monitor data to consider the rigidity dependence of three large Forbush Decreases over the energy range 50 MeV to 30 GeV. Some of their conclusions are extrapolated to higher energies. In an earlier paper (Duldig, 1987a), one of us discussed the need to consider the presence of isotropic intensity waves when determining the Forbush Decrease spectrum at energies up to a few hundred GeV. Lockwood et al.’s conclusions are discussed in the light of these results.

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