Estimating solar irradiation in the Arctic

Solar Irradiation Fundamentals

Downscaling of global solar irradiation in R

A methodology for downscaling solar irradiation from satellite-derived databases is described using R software. Different packages such as raster, parallel, solaR, gstat, sp and rasterVis are considered in this study for improving solar resource estimation in areas with complex topography, in which downscaling is a very useful tool for reducing inherent deviations in satellite-derived irradiati...

Estimating the masses of extra-solar planets

All extra-solar planet masses that have been derived spectroscopically are lower limits since the inclination of the orbit to our line-of-sight is unknown except for transiting systems. In theory, however, it is possible to determine the inclination angle, i, between the rotation axis of a star and an observer’s line-of-sight from measurements of the projected equatorial velocity (v sin i), the...

Protosolar Irradiation in the Early Solar System: a Hibonite Perspective

Estimating Solar Irradiance and Components

-The performance of models to estimate solar irradiance and its components is assessed using data for six Canadian stations for nine years (1968-76). Greatest emphasis is placed on a model, the MAC model, which uses cloud information from different layers. Here, effects on model estimates of using observed cloud layer opacities instead of amounts is examined because after 1976 the latter quanti...