The table below shows the most common keywords used by the author. The letters in brackets after some keywords denote if the keyword corresponds to Solar Physics (S) or Heliospheric Physics (H).
| Keyword
| Occurrences
|
|---|
| Sunspot Number
| 10
|
| Solar Cycle
| 10
|
| Solar Activity
| 8
|
| Sunspots [S]
| 7
|
| Sun: Sunspots
| 6
|
| Sun: Sunspot Number
| 5
|
| The Sun [S]
| 5
|
| Sun: Solar Activity
| 5
|
| Sun: Astrophysics - Solar And Stellar Astrophysics
| 5
|
| Sun: Solar Cycle
| 4
|
| Maunder Minimum
| 4
|
| Sun: Statistics
| 4
|
| Sun: Observations
| 3
|
| Astronomy Databases
| 2
|
| Sun: Sunspot Area
| 2
|
| Sun: Machine Learning
| 2
|
| Sun: Fourier Transform
| 2
|
| Historical Records
| 2
|
| Sun: Time Series Analysis
| 2
|
| Spain
| 2
|
| Sunspot Groups
| 2
|
| Pyrheliometer
| 2
|
| Cloud Cover
| 2
|
| Sun: Cortie Classification
| 1
|
| Sun: Catalogs
| 1
|
| Space Climate
| 1
|
| Solar Radius
| 1
|
| Solar Physics [S]
| 1
|
| Reanalysis
| 1
|
| Precipitable Water
| 1
|
| Portugal
| 1
|
| Physics - Atmospheric And Oceanic Physics
| 1
|
| Partial Eclipses
| 1
|
| Meteors
| 1
|
| Madrid Astronomical Observatory
| 1
|
| Machine Learning
| 1
|
| Infrared Thermometer
| 1
|
| Historical Climatology
| 1
|
| Guadiana Basin
| 1
|
| Global Navigation Satellite Systems
| 1
|
| Floods
| 1
|
| Fast Fourier Transform
| 1
|
| Extremadura
| 1
|
| Early Instrumental Data
| 1
|
| Early Dimming
| 1
|
| Early Brightening
| 1
|
| Direct Solar Radiation
| 1
|
| Direct Solar Irradiance
| 1
|
| Dimming/brightening
| 1
|
| Dimming
| 1
|
| Validation
| 1
|
| Tripero River
| 1
|
| Time Series Analysis
| 1
|
| Surface Solar Radiation
| 1
|
| Sunspot Cycle
| 1
|
| Sunspot
| 1
|
| Sunshine Duration
| 1
|
| Sun: Zurich Classification
| 1
|
| Sun: Sunspot-number Series
| 1
|
| Sun: Sunspot Catalogue
| 1
|
| Sun: Sunspot Catalogs
| 1
|
| Sun: Sun: Sunspots
| 1
|
| Sun: Sun: General
| 1
|
| Sun: Sun: Activity
| 1
|
| Sun: Sun
| 1
|
| Sun: Solar Radius
| 1
|
| Sun: Solar Observations
| 1
|
| Sun: Solar Hemisphere
| 1
|
| Sun: Rgo Classification
| 1
|
| Sun: Physics - History And Philosophy Of Physics
| 1
|
| Sun: Morphological Classification Of Sunspots
| 1
|
| Sun: Hemispheric Sunspot Number
| 1
|
| Sun: Filaments [S]
| 1
|
| Brightening
| 1
|
| Atmospheric Transparency
| 1
|
| Atmospheric Column Transparency
| 1
|
| Atmospheric Aerosols
| 1
|
| Water Vapor
| 1
|