|
|
Updated neutron‐monitor yield function : bridging between in situ and ground‐based cosmic ray measurements |
|---|---|
| Author: | Mishev, Alexander L.1,2; Koldobskiy, Sergey A.1,3; Kovaltsov, Gennady A.4; |
| Organizations: |
1Space Physics and Astronomy Research Unit, University of Oulu, Oulu, Finland 2Sodankylä Geophysical Observatory, University of Oulu, Oulu, Finland 3National Research Nuclear University “MEPhI”, Moscow, Russia
4Ioffe Physical‐Technical Institute, St. Petersburg, Russia
5Space Research Center, Polish Academy of Sciences, Warsaw, Poland 6Institute of Mathematics, Siedlce University, Siedlce, Poland |
| Format: | article |
| Version: | published version |
| Access: | open |
| Online Access: | PDF Full Text (PDF, 0.8 MB) |
| Persistent link: | http://urn.fi/urn:nbn:fi-fe202002195944 |
| Language: | English |
| Published: |
American Geophysical Union,
2020
|
| Publish Date: | 2020-08-18 |
| Description: |
AbstractAn updated yield function for a standard NM64 neutron monitor (NM) is computed and extended to different atmospheric depths from sea level to 500 g/cm² (∼5.7 km altitude) and is presented as lookup tables and a full parametrization. The yield function was validated using the cosmic ray spectra directly measured in space by the AMS‐02 experiment during the period May 2011 through May 2017 and confronted with count rates of all NM64‐type NMs being in operation during this period. Using this approach, stability of all the selected NMs was analyzed for the period 2011–2017. Most of NMs appear very stable and suitable for studies of long‐term solar modulation of cosmic rays. However, some NMs suffer from instabilities like trends, apparent jumps, or strong seasonal waves in the count rates. see all
|
| Series: |
Journal of geophysical research. Space physics |
| ISSN: | 2169-9380 |
| ISSN-E: | 2169-9402 |
| ISSN-L: | 2169-9380 |
| Volume: | 125 |
| Issue: | 2 |
| Article number: | e2019JA027433 |
| DOI: | 10.1029/2019JA027433 |
| OADOI: | https://oadoi.org/10.1029/2019JA027433 |
| Type of Publication: |
A1 Journal article – refereed |
| Field of Science: |
115 Astronomy and space science |
| Subjects: | |
| Funding: |
This work was partially supported by the Academy of Finland (ReSoLVE Centre of Excellence, Project 307411; HEAIM Projects 314982 and 316223; ESPERA Project 321882), by RFBR (Research Project 18‐32‐00062), RFBR and NRF (Research Project 19‐52‐60003), and MEPhI Academic Excellence Project (Contract 02.a03.21.0005), as well as by the International Space Science Institute support to International Team 441: High EneRgy sOlar partICle Events Analysis (HEROIC). |
| Academy of Finland Grant Number: |
307411 314982 316223 321882 |
| Detailed Information: |
307411 (Academy of Finland Funding decision) 314982 (Academy of Finland Funding decision) 316223 (Academy of Finland Funding decision) 321882 (Academy of Finland Funding decision) |
| Dataset Reference: |
Supporting Information S1: |
|
https://agupubs.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1029%2F2019JA027433&file=jgra55549-sup-0001-Figure_SI-S01.pdf |
|
| Copyright information: |
© 2020. American Geophysical Union. All Rights Reserved. |