(Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR
One main point of our atmospheric-electric measurements over the Atlantic Ocean 1973 was the investigation of the air-earth current density above the sea. In addition to direct measurements at the water surface with a floating net, we calculated the air-earth current density from the electric field...
Main Authors: | , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
1978
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.666242 https://doi.org/10.1594/PANGAEA.666242 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.666242 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.666242 2023-05-15T18:23:14+02:00 (Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR Gringel, W Leidel, J Mühleisen, R MEDIAN LATITUDE: 19.234417 * MEDIAN LONGITUDE: -45.472900 * SOUTH-BOUND LATITUDE: 14.500000 * WEST-BOUND LONGITUDE: -67.000000 * NORTH-BOUND LATITUDE: 27.000000 * EAST-BOUND LONGITUDE: -18.000000 * DATE/TIME START: 1973-10-26T14:00:00 * DATE/TIME END: 1973-12-05T23:00:00 * MINIMUM ALTITUDE: 13 m * MAXIMUM ALTITUDE: 13 m 1978-01-04 text/tab-separated-values, 369 data points https://doi.pangaea.de/10.1594/PANGAEA.666242 https://doi.org/10.1594/PANGAEA.666242 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.666242 https://doi.org/10.1594/PANGAEA.666242 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Gringel, W; Leidel, J; Mühleisen, R (1978): The air-earth current density at the water surface and in the free atmosphere above the ocean. Consequences for the global atmospheric-electric circuit. Results from the Atlantic-Expedition of the Research Vessel "Meteor" 1973. (Atmospheric-electric measurements on the sea - Part V). Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe B Meteorologie und Aeronomie, Gebrüder Bornträger, Berlin, Stuttgart, B13, 41-52 ALTITUDE Atlantic Calculated CT DATE/TIME Electric current density GEOSECS LATITUDE LONGITUDE M32 M32-track Meteor (1964) Underway cruise track measurements Dataset 1978 ftpangaea https://doi.org/10.1594/PANGAEA.666242 2023-01-20T08:42:07Z One main point of our atmospheric-electric measurements over the Atlantic Ocean 1973 was the investigation of the air-earth current density above the sea. In addition to direct measurements at the water surface with a floating net, we calculated the air-earth current density from the electric field and the air conductivity measured simultaneously on board of the ship and during particular ascents in the free atmosphere. During all five ascents the air-earth current density did not change with altitude. For pure maritime air-conditions, the mean air-earth current density was found to be 2.9 pA/m**2. The mean hourly air-earth current density over the Atlantic shows nearly the same 24-hour pattern as measured by Cobb (1977) at the South Pole at the same time. When dust-loaden air masses of African origin reached the ship as well as under continental influence the mean air-earth current density was reduced to 2.1 pA/m**2. The global 24-hour pattern was modified by this continental influences. Finally, it is shown that the values of the air conductivity measured on board R. V. "Meteor" during our earlier expeditions have been influenced by the exhaust of the ship and must therefore be corrected. With this correction, our new mean values of the air-earth current density over the Atlantic are 2.6 pA/m**2 in 1965 and 2.0 pA/m**2 in 1969. From all measurements, the global air-earth current is estimated to be about 1250 A. Dataset South pole PANGAEA - Data Publisher for Earth & Environmental Science South Pole ENVELOPE(-67.000000,-18.000000,27.000000,14.500000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ALTITUDE Atlantic Calculated CT DATE/TIME Electric current density GEOSECS LATITUDE LONGITUDE M32 M32-track Meteor (1964) Underway cruise track measurements |
spellingShingle |
ALTITUDE Atlantic Calculated CT DATE/TIME Electric current density GEOSECS LATITUDE LONGITUDE M32 M32-track Meteor (1964) Underway cruise track measurements Gringel, W Leidel, J Mühleisen, R (Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR |
topic_facet |
ALTITUDE Atlantic Calculated CT DATE/TIME Electric current density GEOSECS LATITUDE LONGITUDE M32 M32-track Meteor (1964) Underway cruise track measurements |
description |
One main point of our atmospheric-electric measurements over the Atlantic Ocean 1973 was the investigation of the air-earth current density above the sea. In addition to direct measurements at the water surface with a floating net, we calculated the air-earth current density from the electric field and the air conductivity measured simultaneously on board of the ship and during particular ascents in the free atmosphere. During all five ascents the air-earth current density did not change with altitude. For pure maritime air-conditions, the mean air-earth current density was found to be 2.9 pA/m**2. The mean hourly air-earth current density over the Atlantic shows nearly the same 24-hour pattern as measured by Cobb (1977) at the South Pole at the same time. When dust-loaden air masses of African origin reached the ship as well as under continental influence the mean air-earth current density was reduced to 2.1 pA/m**2. The global 24-hour pattern was modified by this continental influences. Finally, it is shown that the values of the air conductivity measured on board R. V. "Meteor" during our earlier expeditions have been influenced by the exhaust of the ship and must therefore be corrected. With this correction, our new mean values of the air-earth current density over the Atlantic are 2.6 pA/m**2 in 1965 and 2.0 pA/m**2 in 1969. From all measurements, the global air-earth current is estimated to be about 1250 A. |
format |
Dataset |
author |
Gringel, W Leidel, J Mühleisen, R |
author_facet |
Gringel, W Leidel, J Mühleisen, R |
author_sort |
Gringel, W |
title |
(Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR |
title_short |
(Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR |
title_full |
(Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR |
title_fullStr |
(Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR |
title_full_unstemmed |
(Table 1) Air-earth current density investigated during Atlantic Expedition 1973 of METEOR |
title_sort |
(table 1) air-earth current density investigated during atlantic expedition 1973 of meteor |
publisher |
PANGAEA |
publishDate |
1978 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.666242 https://doi.org/10.1594/PANGAEA.666242 |
op_coverage |
MEDIAN LATITUDE: 19.234417 * MEDIAN LONGITUDE: -45.472900 * SOUTH-BOUND LATITUDE: 14.500000 * WEST-BOUND LONGITUDE: -67.000000 * NORTH-BOUND LATITUDE: 27.000000 * EAST-BOUND LONGITUDE: -18.000000 * DATE/TIME START: 1973-10-26T14:00:00 * DATE/TIME END: 1973-12-05T23:00:00 * MINIMUM ALTITUDE: 13 m * MAXIMUM ALTITUDE: 13 m |
long_lat |
ENVELOPE(-67.000000,-18.000000,27.000000,14.500000) |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Supplement to: Gringel, W; Leidel, J; Mühleisen, R (1978): The air-earth current density at the water surface and in the free atmosphere above the ocean. Consequences for the global atmospheric-electric circuit. Results from the Atlantic-Expedition of the Research Vessel "Meteor" 1973. (Atmospheric-electric measurements on the sea - Part V). Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe B Meteorologie und Aeronomie, Gebrüder Bornträger, Berlin, Stuttgart, B13, 41-52 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.666242 https://doi.org/10.1594/PANGAEA.666242 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.666242 |
_version_ |
1766202785460649984 |