Zobrazeno 1 - 10
of 40
pro vyhledávání: '"H. McCreadie"'
Autor:
H. McCreadie, M. Menvielle
Publikováno v:
Annales Geophysicae, Vol 29, Pp 1581-1585 (2011)
No abstract available.
Externí odkaz:
https://doaj.org/article/9bc5465715b9473daca5465649f6e810
Autor:
H. McCreadie, M. Menvielle
Publikováno v:
Annales Geophysicae, Vol 28, Pp 1887-1903 (2010)
The Polar Cap (PC) index is a controversial topic within the IAGA scientific community. Since 1997 discussions of the validity of the index to be endorsed as an official IAGA index have ensued. There is no doubt as to the scientific merit of the i
Externí odkaz:
https://doaj.org/article/569d979a46a04f259adc3b4f01f8f0c6
Autor:
H. McCreadie, M. Menvielle
Publikováno v:
Annales Geophysicae, Vol 29, Pp 813-814 (2011)
No abstract available.
Externí odkaz:
https://doaj.org/article/e975bc91b4d741659b05d8c2fd76e4f4
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 123:13-21
The monitoring of the Earth's magnetic field time variation requires a continuous recording of geomagnetic data with a good spatial coverage over the area of study. In southern Africa, ground recording stations are limited and the use of satellite da
Autor:
H. McCreadie, W.T. Sivla
Publikováno v:
Advances in Space Research. 54:499-508
The diurnal variation of the mid-latitude upper thermosphere zonal winds during equinoxes has been studied using data recently generated from CHAMP measurements from 2002 to 2004 using an iterative algorithm. The wind data was separated into two geom
Autor:
Toshihiko Iyemori, H. McCreadie
Publikováno v:
Earth, Planets and Space. 58:885-893
The equatorial electrojet (EEJ) is a unique feature of the Earth’s external current systems because it must flow along the dip equator. This provides us with a tool to determine the nature of the variations imposed by competing main field models on
Publikováno v:
Environmental Science & Technology. 34:3159-3166
An increasing amount of attention is being focused on the effects of arsenic on health and the factors that control arsenic mobility in groundwater. The release and transport of arsenic below the water table in the current tailings impoundment at Cam
Publikováno v:
Journal of Fluids Engineering. 135
Results are presented of laboratory experiments undertaken to study the dynamics of wave propagation and transformation within the surf zone. The study involved measuring the external flow characteristics of regular plunging waves propagating along a
Publikováno v:
Geophysical Journal International. 114:175-184
Summary An extensive analysis, using 80 stations, has been made of the latitudinal and longitudinal variation of the additional fields in H, D and Z that occurred on Abnormal Quiet Days (AQDs) during the Northern Hemisphere winter months in the years
Autor:
H. McCreadie, E. C. Butcher
Publikováno v:
Exploration Geophysics. 24:151-155
Malin and lsikara (1976) proposed that the annual variation in the night-time values of the geomagnetic field was caused by an annual variation in the latitude of the ring current. Butcher and Schlapp (1992), using longer runs of data, showed that, b