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Intermittency in Solar Wind Turbulence From Fluid to Kinetic Scales
Bruno, Roberto
Solar wind is a highly turbulent medium exhibiting fluctuations ranging from the solar sidereal rotation period to proton and electron gyroperiods. Their amplitudes show remarkable scalings with frequency across more than seven decades, suggesting a self-similar nature for these fluctuations. However, these fluctuations are not globally scale inva…
Solar Irradiance Variability: Comparisons of Models and Measurements
Haberreiter, M.; Kopp, G.; Baranyi, T. +8 more
The Earth system responds to solar variability on a wide range of timescales. Knowledge of total solar irradiance (TSI) and solar spectral irradiance (SSI) spanning minutes to centuries is needed by scientists studying a broad array of research applications. For these purposes, the NOAA National Centers for Environmental Information (NCEI) Climate…
Coordinates and Maps of the Apollo 17 Landing Site
Oberst, Jürgen; Haase, Isabel; Wählisch, Marita +2 more
We carried out an extensive cartographic analysis of the Apollo 17 landing site and determined and mapped positions of the astronauts, their equipment, and lunar landmarks with accuracies of better than ±1 m in most cases. To determine coordinates in a lunar body-fixed coordinate frame, we applied least squares (2-D) network adjustments to angular…
MARSWRF Prediction of Entry Descent Landing Profiles: Applications to Mars Exploration
Zorzano, María-Paz; Fonseca, Ricardo Morais; Martín-Torres, Javier
In this paper we use the Mars implementation of the Planet Weather Research and Forecasting model, MarsWRF, to simulate the Entry, Descent and Landing (EDL) vertical profiles from six past missions: Pathfinder, Mars Exploration Rovers Opportunity and Spirit, Phoenix, Mars Science Laboratory Curiosity rover, and ExoMars 2016 (Schiaparelli), and com…
Retrieval of Chemical Abundances in Titan's Upper Atmosphere From Cassini UVIS Observations With Pointing Motion
Gao, Peter; Fan, Siteng; Li, Cheng +3 more
Cassini/Ultraviolet Imaging Spectrograph (UVIS) Far-UV observations of stellar occultations at Titan are well suited for probing its atmospheric composition and structure. However, due to instrument pointing motion, only 5 out of tens of observations have been analyzed. We present an innovative retrieval method that corrects for the effect of poin…
A Robust Ground-to-Image Transformation Algorithm and Its Applications in the Geometric Processing of Linear Pushbroom Images
Geng, Xun; Xu, Qing; Lan, Chaozhen +1 more
Linear array cameras are widely used in the fields of aerial and space remote sensing. The ground-to-image transformation plays a significant role in the geometric processing procedures of linear pushbroom images, which is time-consuming due to multiple iterative calculations. Moreover, the detectors of the linear array may exhibit a curved shape …