Concepedia

G. A. Chapman

GA

Statistics

Publications

88

Citations

3.6K

H-Index

34

Active since

1962

Affiliations

California State University, Northridge(Current)

Environmental Protection Agency

Corvallis Environmental Center

Royal Institute and Observatory of the Spanish Navy

G. A. Chapman is an author at California State University, Northridge specializing in engineering, astrophysics, and solar variability.

Top concepts

EngineeringSolar VariabilityAstrophysicsSolar ActivitySolar ConvectionPhotometryToxicologyEcotoxicologyEnvironmental ToxicologyWater Quality

Publications per year

1962–2020

88

Publications

88

Observations of Solar Irradiance Variability

R. C. Willson, S. Gulkis, M. A. Janssen et al. · Science · 1981 · 401 citations

Effects of pH on the Toxicities of Cadmium, Copper, and Zinc to Steelhead Trout (<i>Salmo gairdneri</i>)

Robert F. Cusimano, David Brakke, G. A. Chapman · Canadian Journal of Fisheries and Aquatic Sciences · 1986 · 213 citations

Environmental Chemistry, Ecotoxicity, Engineering +11

The photospheric network

G. A. Chapman, N. R. Sheeley · Solar Physics · 1968 · 149 citations

Photospheric Network, Photometry (Optics), Astronomical Image Analysis +3

Toxicities of Cadmium, Copper, and Zinc to Four Juvenile Stages of Chinook Salmon and Steelhead

G. A. Chapman · Transactions of the American Fisheries Society · 1978 · 135 citations

Metal Contamination, Relative Tolerances, Chinook Salmon +18

Variations in total solar irradiance during solar cycle 22

G. A. Chapman, A. M. Cookson, J. J. Dobias · Journal of Geophysical Research Atmospheres · 1996 · 119 citations

Engineering, Solar Convection, Solar-terrestrial Interaction +19

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