Density gradients and type I velocities in the equatorial electrojet
VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradie...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
1992 |
|---|
| Reproduktion: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
|---|---|
| Übergeordnetes Werk: |
in: Advances in Space Research - Amsterdam : Elsevier, 12(1992), 6, Seite 45-48 |
| Übergeordnetes Werk: |
volume:12 ; year:1992 ; number:6 ; pages:45-48 |
| Links: |
|---|
| Katalog-ID: |
NLEJ180364596 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLEJ180364596 | ||
| 003 | DE-627 | ||
| 005 | 20210706124506.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 070505s1992 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)NLEJ180364596 | ||
| 035 | |a (DE-599)GBVNLZ180364596 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 245 | 1 | 0 | |a Density gradients and type I velocities in the equatorial electrojet |
| 264 | 1 | |c 1992 | |
| 336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
| 337 | |a nicht spezifiziert |b z |2 rdamedia | ||
| 338 | |a nicht spezifiziert |b zu |2 rdacarrier | ||
| 520 | |a VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. | ||
| 533 | |f Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 | ||
| 700 | 1 | |a Viswanathan, K.S. |4 oth | |
| 773 | 0 | 8 | |i in |t Advances in Space Research |d Amsterdam : Elsevier |g 12(1992), 6, Seite 45-48 |w (DE-627)NLEJ180340476 |w (DE-600)2023311-5 |x 0273-1177 |7 nnns |
| 773 | 1 | 8 | |g volume:12 |g year:1992 |g number:6 |g pages:45-48 |
| 856 | 4 | 0 | |u http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y |
| 912 | |a GBV_USEFLAG_H | ||
| 912 | |a ZDB-1-SDJ | ||
| 912 | |a GBV_NL_ARTICLE | ||
| 951 | |a AR | ||
| 952 | |d 12 |j 1992 |e 6 |h 45-48 | ||
| matchkey_str |
article:02731177:1992----::estgainsntpieoiisnheu |
|---|---|
| hierarchy_sort_str |
1992 |
| publishDate |
1992 |
| allfields |
(DE-627)NLEJ180364596 (DE-599)GBVNLZ180364596 DE-627 ger DE-627 rakwb eng Density gradients and type I velocities in the equatorial electrojet 1992 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Viswanathan, K.S. oth in Advances in Space Research Amsterdam : Elsevier 12(1992), 6, Seite 45-48 (DE-627)NLEJ180340476 (DE-600)2023311-5 0273-1177 nnns volume:12 year:1992 number:6 pages:45-48 http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 12 1992 6 45-48 |
| spelling |
(DE-627)NLEJ180364596 (DE-599)GBVNLZ180364596 DE-627 ger DE-627 rakwb eng Density gradients and type I velocities in the equatorial electrojet 1992 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Viswanathan, K.S. oth in Advances in Space Research Amsterdam : Elsevier 12(1992), 6, Seite 45-48 (DE-627)NLEJ180340476 (DE-600)2023311-5 0273-1177 nnns volume:12 year:1992 number:6 pages:45-48 http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 12 1992 6 45-48 |
| allfields_unstemmed |
(DE-627)NLEJ180364596 (DE-599)GBVNLZ180364596 DE-627 ger DE-627 rakwb eng Density gradients and type I velocities in the equatorial electrojet 1992 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Viswanathan, K.S. oth in Advances in Space Research Amsterdam : Elsevier 12(1992), 6, Seite 45-48 (DE-627)NLEJ180340476 (DE-600)2023311-5 0273-1177 nnns volume:12 year:1992 number:6 pages:45-48 http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 12 1992 6 45-48 |
| allfieldsGer |
(DE-627)NLEJ180364596 (DE-599)GBVNLZ180364596 DE-627 ger DE-627 rakwb eng Density gradients and type I velocities in the equatorial electrojet 1992 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Viswanathan, K.S. oth in Advances in Space Research Amsterdam : Elsevier 12(1992), 6, Seite 45-48 (DE-627)NLEJ180340476 (DE-600)2023311-5 0273-1177 nnns volume:12 year:1992 number:6 pages:45-48 http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 12 1992 6 45-48 |
| allfieldsSound |
(DE-627)NLEJ180364596 (DE-599)GBVNLZ180364596 DE-627 ger DE-627 rakwb eng Density gradients and type I velocities in the equatorial electrojet 1992 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Viswanathan, K.S. oth in Advances in Space Research Amsterdam : Elsevier 12(1992), 6, Seite 45-48 (DE-627)NLEJ180340476 (DE-600)2023311-5 0273-1177 nnns volume:12 year:1992 number:6 pages:45-48 http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 12 1992 6 45-48 |
| language |
English |
| source |
in Advances in Space Research 12(1992), 6, Seite 45-48 volume:12 year:1992 number:6 pages:45-48 |
| sourceStr |
in Advances in Space Research 12(1992), 6, Seite 45-48 volume:12 year:1992 number:6 pages:45-48 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| isfreeaccess_bool |
false |
| container_title |
Advances in Space Research |
| authorswithroles_txt_mv |
Viswanathan, K.S. @@oth@@ |
| publishDateDaySort_date |
1992-01-01T00:00:00Z |
| hierarchy_top_id |
NLEJ180340476 |
| id |
NLEJ180364596 |
| language_de |
englisch |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ180364596</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210706124506.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070505s1992 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ180364596</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVNLZ180364596</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Density gradients and type I velocities in the equatorial electrojet</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1992</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Elsevier Journal Backfiles on ScienceDirect 1907 - 2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Viswanathan, K.S.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Advances in Space Research</subfield><subfield code="d">Amsterdam : Elsevier</subfield><subfield code="g">12(1992), 6, Seite 45-48</subfield><subfield code="w">(DE-627)NLEJ180340476</subfield><subfield code="w">(DE-600)2023311-5</subfield><subfield code="x">0273-1177</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:12</subfield><subfield code="g">year:1992</subfield><subfield code="g">number:6</subfield><subfield code="g">pages:45-48</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_H</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SDJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">12</subfield><subfield code="j">1992</subfield><subfield code="e">6</subfield><subfield code="h">45-48</subfield></datafield></record></collection>
|
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ180364596</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210706124506.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070505s1992 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ180364596</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVNLZ180364596</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Density gradients and type I velocities in the equatorial electrojet</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1992</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Elsevier Journal Backfiles on ScienceDirect 1907 - 2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Viswanathan, K.S.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Advances in Space Research</subfield><subfield code="d">Amsterdam : Elsevier</subfield><subfield code="g">12(1992), 6, Seite 45-48</subfield><subfield code="w">(DE-627)NLEJ180340476</subfield><subfield code="w">(DE-600)2023311-5</subfield><subfield code="x">0273-1177</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:12</subfield><subfield code="g">year:1992</subfield><subfield code="g">number:6</subfield><subfield code="g">pages:45-48</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_H</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SDJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">12</subfield><subfield code="j">1992</subfield><subfield code="e">6</subfield><subfield code="h">45-48</subfield></datafield></record></collection>
|
| series2 |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)NLEJ180340476 |
| format |
electronic Article |
| delete_txt_mv |
keep |
| collection |
NL |
| remote_str |
true |
| illustrated |
Not Illustrated |
| issn |
0273-1177 |
| topic_title |
Density gradients and type I velocities in the equatorial electrojet |
| format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
zu |
| author2_variant |
k v kv |
| hierarchy_parent_title |
Advances in Space Research |
| hierarchy_parent_id |
NLEJ180340476 |
| hierarchy_top_title |
Advances in Space Research |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)NLEJ180340476 (DE-600)2023311-5 |
| title |
Density gradients and type I velocities in the equatorial electrojet |
| spellingShingle |
Density gradients and type I velocities in the equatorial electrojet |
| ctrlnum |
(DE-627)NLEJ180364596 (DE-599)GBVNLZ180364596 |
| title_full |
Density gradients and type I velocities in the equatorial electrojet |
| journal |
Advances in Space Research |
| journalStr |
Advances in Space Research |
| lang_code |
eng |
| isOA_bool |
false |
| recordtype |
marc |
| publishDateSort |
1992 |
| contenttype_str_mv |
zzz |
| container_start_page |
45 |
| container_volume |
12 |
| format_se |
Elektronische Aufsätze |
| title_sort |
density gradients and type i velocities in the equatorial electrojet |
| title_auth |
Density gradients and type I velocities in the equatorial electrojet |
| abstract |
VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. |
| abstractGer |
VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. |
| abstract_unstemmed |
VHF radar measurements of ionization irregularities in the equatorial electrojet (EEJ) at Thumba (dip 0.5^oN) for a morning counter electrojet (CEJ) indicate significant decrease in height and time structures of type I phase velocity. For this event, the influence of neutral winds and density gradients to the observed velocity changes have been studied. The absence of turbulence-related type II irregularities together with the presence of westward electric field points that electron density gradient length is positive and small, giving rise to decrease of type I velocity by about 20%. The possible causes that modify the observed velocity from the normally expected ion-acoustic velocity threshold are discussed. |
| collection_details |
GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE |
| container_issue |
6 |
| title_short |
Density gradients and type I velocities in the equatorial electrojet |
| url |
http://linkinghub.elsevier.com/retrieve/pii/0273-1177(92)90038-Y |
| remote_bool |
true |
| author2 |
Viswanathan, K.S. |
| author2Str |
Viswanathan, K.S. |
| ppnlink |
NLEJ180340476 |
| mediatype_str_mv |
z |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth |
| up_date |
2024-07-06T03:11:50.059Z |
| _version_ |
1803797670196674560 |
| score |
7.4030848 |