Zobrazeno 1 - 10
of 288
pro vyhledávání: '"R. G. Harrison"'
Autor:
R. G. Harrison, J. C. Riddick
Publikováno v:
History of Geo- and Space Sciences, Vol 15, Pp 5-16 (2024)
Atmospheric electricity measurements, principally of the hourly potential gradient (PG), were made continuously at Eskdalemuir Observatory, Scotland (55.314° N, 3.206° W), between 1911 and 1981. Air ion properties were also determined. The sensing
Externí odkaz:
https://doaj.org/article/91eca7c4f2574c88819aebc99f83508c
Autor:
R. G. Harrison, K. Schlegel
Publikováno v:
History of Geo- and Space Sciences, Vol 14, Pp 71-75 (2023)
During 4 decades, from 1950 to 1990, atmospheric electricity measurements as well as other environmental measurements were made by Reinhold Reiter at several sites close to Garmisch-Partenkirchen. The quantities determined included the atmospheric po
Externí odkaz:
https://doaj.org/article/e5c1c59bf616416f9df543accfb1284c
Autor:
R. G. Harrison, J. C. Riddick
Publikováno v:
History of Geo- and Space Sciences, Vol 13, Pp 133-146 (2022)
Atmospheric electricity measurements were made at Lerwick Observatory, Shetland, between 1925 and 1984. These principally provide a long series of hourly potential gradient (PG) measurements at an unpolluted site but also include air–Earth current
Externí odkaz:
https://doaj.org/article/80cd46bc39144d0a8cb48ac94f3dbc5a
Autor:
R. G. Harrison
Publikováno v:
Geoscientific Instrumentation, Methods and Data Systems, Vol 11, Pp 37-57 (2022)
In atmospheric science, measurements above the surface have long been obtained by carrying instrument packages, radiosondes, aloft using balloons. Whilst occasionally used for research, most radiosondes – around 1000 are released daily – only gen
Externí odkaz:
https://doaj.org/article/91520eab5c504661886b2a352c81d750
Autor:
R. G. Harrison
Publikováno v:
History of Geo- and Space Sciences, Vol 11, Pp 207-213 (2020)
The “Carnegie curve” describes the diurnal variation of the global atmospheric electric circuit. It was originally found from atmospheric electric potential gradient (PG) measurements made on the Carnegie, effectively a floating atmospheric elect
Externí odkaz:
https://doaj.org/article/870eec3ecbcc480e9dc8d547f237b77b
Publikováno v:
History of Geo- and Space Sciences, Vol 11, Pp 105-121 (2020)
The scientific career of Michael Rycroft (born in 1938) spans the space age, during which significant changes have occurred in how scientists work, experiment, and interact. Here, as part of his 80th birthday celebrations, we review his career to dat
Externí odkaz:
https://doaj.org/article/be32f709198d476e9f4f84af6aba5f84
Autor:
D. Dexheimer, M. Airey, E. Roesler, C. Longbottom, K. Nicoll, S. Kneifel, F. Mei, R. G. Harrison, G. Marlton, P. D. Williams
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 6845-6864 (2019)
A tethered-balloon system (TBS) has been developed and is being operated by Sandia National Laboratories (SNL) on behalf of the U.S. Department of Energy's (DOE) Atmospheric Radiation Measurement (ARM) User Facility in order to collect in situ atmosp
Externí odkaz:
https://doaj.org/article/5dd04721e7bc4788b0d7d2b56a754c9a
Autor:
K. L. Aplin, R. G. Harrison
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
The causes behind fluctuations in Neptune's brightness as observed from Earth have proved enigmatic. Here, Aplin and Harrison use photometric observations to show that solar ultraviolet radiation and galactic cosmic rays combined are responsible for
Externí odkaz:
https://doaj.org/article/22a46a87372d49a3a1dd2b3fa75fa449
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 14, Iss 4, Pp 773-777 (2014)
We illustrate how coupling could occur between surface air and clouds via the global electric circuit – through Atmospheric Lithosphere–Ionosphere Charge Exchange (ALICE) processes – in an attempt to develop a physical understanding of the poss
Externí odkaz:
https://doaj.org/article/98f4db2e0d964422843936e8ba949f74
Autor:
M. Lockwood, H. Nevanlinna, L. Barnard, M. J. Owens, R. G. Harrison, A. P. Rouillard, C. J. Scott
Publikováno v:
Annales Geophysicae, Vol 32, Pp 383-399 (2014)
In the concluding paper of this tetralogy, we here use the different geomagnetic activity indices to reconstruct the near-Earth interplanetary magnetic field (IMF) and solar wind flow speed, as well as the open solar flux (OSF) from 1845 to the pr
Externí odkaz:
https://doaj.org/article/269186d06c9e448298aa2fbbc763cdab