Concepedia

T. Nygrén

TN

44

Publications

1.2K

Citations

23

H-Index

1974

Active since

Affiliations

University of Oulu(Current)

"Dunarea de Jos" University of Galati

Finnish Meteorological Institute

Polar Geophysical Institute

Max Planck Society

T. Nygrén is an author at University of Oulu specializing in engineering, geophysics, and atmospheric science.

Top concepts

EngineeringGeophysicsAtmospheric ScienceSpace WeatherRadarInstrumentationSynthetic Aperture RadarMeteorologyRadar ScatteringPhysics

Publications per year

1974–2016

44

Publications

44

The role of electric field and neutral wind direction in the formation of sporadic E-layers

T. Nygrén, L. Jalonen, J. Oksman et al. · Journal of Atmospheric and Terrestrial Physics · 1984 · 161 citations

Geophysics, Electrical Engineering, Engineering +8

Stochastic inversion in ionospheric radiotomography

T. Nygrén, Markku Markkanen, Markku Lehtinen et al. · Radio Science · 1997 · 50 citations · Full text

Geophysics, Appropriate Regularization, Engineering +12

Electric fields and neutral winds from monostatic incoherent scatter measurements by means of stochastic inversion

T. Nygrén, Anita Aikio, R. Kuula et al. · Journal of Geophysical Research Atmospheres · 2011 · 47 citations

Electric Field Components, Engineering, Radio Communication +19

Statistical distribution of height‐integrated energy exchange rates in the ionosphere

Anita Aikio, Lei Cai, T. Nygrén · Journal of Geophysical Research Atmospheres · 2012 · 45 citations · Full text

Upper Atmosphere, Engineering, Solar Convection +18

Ion composition in sporadic <i>E</i> layers measured by the EISCAT UHF radar

A. Huuskonen, T. Nygrén, L. Jalonen et al. · Journal of Geophysical Research Atmospheres · 1988 · 42 citations

Radar, Geophysics, Engineering +11

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