Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Project Magnet"'
Autor:
Susan Macmillan, D. R. Barraclough
Publikováno v:
Journal of geomagnetism and geoelectricity. 49:263-278
A global evaluation is made of the candidate geomagnetic field models for the DGRF 1990 (main field) and IGRF 1995 (main field and secular variation). An evaluation of these models is also made with respect to the previous (6th generation) IGRF. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef3348b73e65e3c4bb8883f89e4a6787
https://doi.org/10.5636/jgg.49.263
https://doi.org/10.5636/jgg.49.263
Autor:
Robert A. Langel, R. T. Baldwin
Publikováno v:
Journal of geomagnetism and geoelectricity. 44:805-842
Candidate models were submitted to IAGA Working group V-8 for DGRF 1985 and IGRF 1990. Main field candidates were of degree 10 for each epoch and the 1990 models included secular variation models of degree 8. Two main field candidates for each epoch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f80e207082188d6e8a8883a6070bba5
https://doi.org/10.5636/jgg.44.805
https://doi.org/10.5636/jgg.44.805
Autor:
Norman W. Peddie
Publikováno v:
Journal of geomagnetism and geoelectricity. 44:735-743
The secular variation of the main geomagnetic field during the periods 1980-1985 and 1985-1990 was analyzed in terms of spherical harmonics up to the eighth degree and order. Data from worldwide magnetic observatories and the Navy's Project MAGNET ae
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::431e693050c4c5620887cf0569b54f6f
https://doi.org/10.5636/jgg.44.735
https://doi.org/10.5636/jgg.44.735
Evaluation of Models Proposed for the 1991 Revision of the International Geomagnetic Reference Field
Autor:
Norman W. Peddie
Publikováno v:
Journal of geomagnetism and geoelectricity. 44:793-803
The 1991 revision of the International Geomagnetic Reference Field (IGRF) comprises a definitive main-field model for 1985.0, amain-field model for 1990.0, and a forecast secular-variation model for the period 1990-1995. The five 1985.0 main-field mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69ce0c365a62ce15d085dba83ae0e8e3
https://doi.org/10.5636/jgg.44.793
https://doi.org/10.5636/jgg.44.793
Autor:
John M. Quinn, Donald L. Shiel
The Juan de Fuca and Explorer plates have been extensively surveyed over a period of several decades, primarily using shipborne scalar magnetometers, as noted by Raff and Mason (1961), Elvers et al. (1974), and more recently by Tivey and Johnson (199
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ff78ef179cd5c20c50ded935f872d67
https://doi.org/10.21236/ada283507
https://doi.org/10.21236/ada283507
Autor:
Robert D. Regan, Birendra K. Jain
Publikováno v:
Geoexploration. 20:233-258
Data from the Polar Orbiting Geophysical Observatory (POGO) satellites over the central and southern part of the East African Rift system are examined in conjunction with other conventional geophysical data, specifically surface gravity and Project M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f2096508b9c5e8f59e02f319fd26dfa
https://doi.org/10.1016/0016-7142(82)90024-2
https://doi.org/10.1016/0016-7142(82)90024-2
Publikováno v:
Physics of the Earth and Planetary Interiors. 48:313-319
A tenth degree and order spherical harmonic model of the main geomagnetic field for 1980 has been derived using MAGSAT data supplemented by aeromagnetic vector data collected by the Project MAGNET aircraft. A secular variation model of degree and ord
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c0f14838b1ce8fd64ca75da71650353
https://doi.org/10.1016/0031-9201(87)90153-1
https://doi.org/10.1016/0031-9201(87)90153-1
Autor:
M. J. Keen
Publikováno v:
Nature. 197:888-890
THE intensity of the Earth's magnetic field over the Atlantic Ocean has been measured on a number of flights organized by the Department of Mines and Technical Surveys of Canada and also under Project Magnet (U.S. Hydrographic Office). Some of these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::959b1aa64b3e5c6cdc260570ac6f44ea
https://doi.org/10.1038/197888a0
https://doi.org/10.1038/197888a0
Autor:
Robert D. Regan
Over the last decade, the utility of geomagnetic field models or the mathematical representations of the geomagnetic field has expanded considerably, both for civilian and military applications. Such an increase has been accompanied with more interes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2e93ec3bec716789410ad7910defaa1
https://doi.org/10.21236/ada102946
https://doi.org/10.21236/ada102946