Results 211 to 220 of about 750,909 (382)
Using micrometeorological measurements in Brazil at the Amazon Tall Tower Observatory, the scalewise impact of thermal stratification on turbulent momentum fluxes is explored in the roughness sublayer and the atmospheric surface layer. A scalewise co‐spectral budget model developed here revealed that the turbulent momentum co‐spectrum Fwu(kx)$$ {F}_{wu}
Luca Mortarini+4 more
wiley +1 more source
The “Great” Magnetic Storms, 1875 to 1903, and their association with Sun-spots, as recorded at the Royal Observatory, Greenwich [PDF]
E. W. Maunder
openalex +1 more source
Atmospheric electricity data require local weather information for identifying representative ‘fair weather’ values, which are needed for climate‐related studies. ERA5 meteorological reanalysis data are evaluated for this, by comparison with data from Lerwick observatory, Shetland, where a long series of twentieth‐century potential gradient ...
H. Mkrtchyan+2 more
wiley +1 more source
Introduction: This reflective solar cooker uses the Sun’s energy to cook marshmallows. The target cooking area is the space where the light concentration is greatest. Never look directly at the Sun! It could damage your eyes. Don’t allow the cooker to
McDonald Observatory+1 more
core
On some Celestial Photographs recently taken at Sydney Observatory [PDF]
H. C. Russell
openalex +1 more source
Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network
The article explores securing a dynamic global quantum network using continuous variable QKD, proposing a unified three‐layer network architecture for integrating existing QKD networks. It evaluates secret key rates across various channels and introduces the link capacity as a metric for determining the optimum path for secret key distribution in a ...
Mikhael T. Sayat+4 more
wiley +1 more source
Introduction: One of astronomy’s first tools to measure the flow of time, a sundial is simply a stick that casts a shadow on a face marked with units of time. As Earth spins, the shadow sweeps across the face.
Mcdonald Observatory+1 more
core
Magnetic Disturbances as recorded at the Royal Observatory, Greenwich, and their Association with Sun-spots. Third Paper [PDF]
E. W. Maunder
openalex +1 more source
XMM-Newton observatory. I. The spacecraft and operations
F. Jansen+14 more
semanticscholar +1 more source
Proceedings of Observatories [PDF]
openaire +6 more sources