| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repository | sid.inpe.br/iris@1916/2006/01.05.16.17 (restricted access) |
| Last Update | 2006:01.05.16.17.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/iris@1916/2006/01.05.16.17.34 |
| Metadata Last Update | 2018:06.05.01.16.42 (UTC) administrator |
| Secondary Key | INPE-13300-PRE/8542 |
| ISSN | 0273-1177 |
| Citation Key | ContreiraRMMBATSS:2005:ExStSo |
| Title | An experiment to study solar flare effects on radio-communication  |
| Year | 2005 |
| Access Date | 2024, May 18 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 394 KiB |
| 2. Context | |
| Author | 1 Contreira, Danieli Balbueno 2 Rodrigues, F. S. 3 Makita, K. 4 Makita, Kazuo 5 Brum, Christiano Garnett Marques 6 Alarcon, Walter Demétrio Gonzalez 7 Trivedi, Nalin Babulal 8 Silva, M. R. da 9 Schuch, Nelson Jorge |
| Resume Identifier | 1 2 3 4 5 6 8JMKD3MGP5W/3C9JJC4 7 8JMKD3MGP5W/3C9JHTS 8 9 8JMKD3MGP5W/3C9JHUD |
| Group | 1 RSU-INPE-MCT-BR 2 DGE-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Journal | Advances in Space Research |
| Volume | 36 |
| Pages | 2455-2459 |
| History (UTC) | 2006-03-07 16:20:12 :: jefferson -> administrator :: 2012-07-17 12:41:31 :: administrator -> jefferson :: 2012-10-03 14:39:42 :: jefferson -> administrator :: 2005 2018-06-05 01:16:42 :: administrator -> marciana :: 2005 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | Space weather solar flares effects radio communication signals |
| Abstract | The occurrence of radio signal fading events caused by ionospheric absorption plays an important role in the performance of radio-communication systems. It is necessary to know the magnitude and time-scale of such events in order to specify technical parameters of the communication system to be used. Generally, fading events are associated with solar flares, which are characterized by sudden increase in the solar X-ray flux that causes an increase in the ionization in the lower ionosphere. The abrupt increase of ionization causes the absorption of radio waves propagating in the Earthionosphere wave-guide and is reported as radio signal fading events. A simple experiment to monitor the behavior of lower ionosphere has been carried out at the Southern Space Observatory- SSO/INPE (29.43S, 53.8W), located in southern Brazil. The experiment is basically a computer controlled radio receiver that records the received signal strength of Amplitude Modulated (AM) radio signals in the HF (High Frequencies) range. We analyzed data of the 6 MHz beacon signal that has been transmitted by a broadcasting radio station located about 400 km from the observation site. In this work we present initial results of daily variation of the received signal strength and fading events associated with solar flares observed in the 6 MHz signal monitored by the experiment during 2001. X-ray solar flux data from the GOES-8 satellite were used to identify X-ray solar bursts associated with solar flares. Based on the one-year data collected by the experiment, a statistical summary of fading occurrences and their correlation with solar flares, as well as the distributions of time-scales and magnitudes of such events are presented. |
| Area | CEA |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > An experiment to... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CRCRS > An experiment to... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| User Group | administrator jefferson |
| Reader Group | administrator jefferson |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft24 |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3EU29DP 8JMKD3MGPCW/3EUFCFP |
| Citing Item List | sid.inpe.br/bibdigital/2013/10.01.22.11 2 sid.inpe.br/mtc-m21/2012/07.13.14.56.48 2 sid.inpe.br/mtc-m21/2012/07.13.15.01.50 2 |
| Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX. |
| Host Collection | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format identifier isbn label lineage mark mirrorrepository month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |