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
|
|---|
| Solar Cycle
| 8
|
| Sunspot Number
| 8
|
| Solar Activity
| 7
|
| Sun: Sunspots
| 6
|
| Sun: Sunspot Number
| 5
|
| Sun: Astrophysics - Solar And Stellar Astrophysics
| 5
|
| Sun: Solar Activity
| 5
|
| Maunder Minimum
| 4
|
| Sun: Statistics
| 4
|
| Sun: Solar Cycle
| 4
|
| Sunspots [S]
| 4
|
| Sun: Observations
| 3
|
| Spain
| 2
|
| The Sun [S]
| 2
|
| Historical Records
| 2
|
| Sun: Fourier Transform
| 2
|
| Sun: Machine Learning
| 2
|
| Pyrheliometer
| 2
|
| Sun: Time Series Analysis
| 2
|
| Cloud Cover
| 2
|
| Sun: Sunspot Area
| 2
|
| Sun: Physics - History And Philosophy Of Physics
| 1
|
| Sun: Morphological Classification Of Sunspots
| 1
|
| Sun: Hemispheric Sunspot Number
| 1
|
| Sun: Filaments [S]
| 1
|
| Sun: Cortie Classification
| 1
|
| Sun: Catalogs
| 1
|
| Space Climate
| 1
|
| Solar Radius
| 1
|
| Reanalysis
| 1
|
| Precipitable Water
| 1
|
| Portugal
| 1
|
| Physics - Atmospheric And Oceanic Physics
| 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
|
| Astronomy Databases
| 1
|
| Validation
| 1
|
| Tripero River
| 1
|
| Time Series Analysis
| 1
|
| Surface Solar Radiation
| 1
|
| Sunspot Groups
| 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
|
| Brightening
| 1
|
| Atmospheric Transparency
| 1
|
| Atmospheric Column Transparency
| 1
|
| Atmospheric Aerosols
| 1
|
| Water Vapor
| 1
|