If digital images of clear daytime or twilight skies are acquired through a linear polarizing filter, they can be combined to produce high-resolution maps of skylight polarization. Here polarization P and normalized Stokes parameter Q are measured near sunset at one inland and two coastal sites. Maps that include the principal plane consistently show that the familiar Arago and Babinet neutral ...

Atmosphere Earth is enveloped by a vast amount of air called the atmosphere. It is relative thin compared to the size of the earth and fades away with increasing distance from the earth's surface. The earth's atmosphere is categorized into 4 layers troposphere, stratosphere, mesosphere and thermosphere. Troposphere where all the weather takes place and stratosphere, the two closest layers to ea...

Measurements of the skylight polarized radiance distribution were performed at different measurement sites, atmospheric conditions, and three wavelengths with our newly developed Polarization Radiance Distribution Camera System (RADS-IIP), an analyzer-type Stokes polarimeter. Three Stokes parameters of skylight (I, Q, U), the degree of polarization, and the plane of polarization are presented i...

The present work is an analysis and statistical association of distributions experimental spectral values visible infrared radiation attenuation through the skylight a museum in city Valencia (Spain). They have been statistically analyzed summer winter. This allows detecting interrelation between data distributions. spatial these also by applying Yule index belonging to Spatial Statistics. inte...

The present work is an analysis and statistical association of distributions experimental values ultraviolet radiation attenuation through the skylight a museum in city Valencia (Spain). were made summer winter at different times. Statistical was obtained to detect clustering measurement distributions, carried out using Q or Yule index, which means dependency function between this parameter str...

In the subtropical zone of China, a large number old factory buildings rich in industrial historical and cultural value have been transformed into art studios. existing research on building renovation, there are still problems such as insufficient lighting, low uniformity, ignoring effect glare lighting environment after transformation. To fill this gap, paper provides daylighting design strate...

[1] A vector radiative transfer model was used in conjunction with the line-by-line radiative transfer model and the database of high-resolution transmission (HITRAN) molecular absorption to simulate the degree of linear polarization of skylight in cloud-free conditions. Differences between simulated and measured polarization data in highspectral resolution are found to be within 1% after aeros...

Reflected skylight in above-water measurements of diffuse marine reflectance can be reduced substantially by viewing the surface through an analyzer transmitting the vertically polarized component of incident radiance. For maximum reduction of effects, radiometric measurements should be made at a viewing zenith angle of approximately 45 degrees (near the Brewster angle) and a relative azimuth a...

Vikings routinely crossed the North Atlantic without a magnetic compass and left their mark on lands as far away as Greenland, Newfoundland and Baffin Island. Based on an eleventh-century dial fragment artefact, found at Uunartoq in Greenland, it is widely accepted that they sailed along chosen latitudes using primitive Sun compasses. Such instruments were tested on sea and proved to be efficie...

Introduction: Combined lander-rover modeling is the transformational means for developing high resolution, color, three-dimensional representations of planetary features such as cave entrances and skylights. Lander-rover modeling combines registered overflight imagery with rover-based surface imaging techniques to build highly accurate co-registered models. The models produced by this approach ...