Results 31 to 40 of about 1,106,622 (296)

Identifying and Interpreting Stratification in Sedimentary Rocks on Mars: Insight from Rover and Orbital Observations and Terrestrial Field Analogs [PDF]

open access: yes, 2013
Sedimentary rocks on Mars provide insight into past aqueous and atmospheric processes, climate regimes, and potential habitability. The stratigraphic architecture of sedimentary rocks on Mars is similar to that of Earth, indicating that the processes ...
Edgar, Lauren Ashley
core   +1 more source

Dark aeolian sediments in Martian craters: Composition and sources [PDF]

open access: yes, 2011
Our research focuses on the mineralogical characteristics of dark sediment deposits in Martian craters (dunes, dune fields, and sand sheets) and their local sediment sources, carried out on the basis of 70 selected localities.
R. Jaumann   +7 more
core   +1 more source

EVALUATING STEREO DTM QUALITY AT JEZERO CRATER, MARS WITH HRSC, CTX, AND HIRISE IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
We have used a high-precision, high-resolution digital terrain model (DTM) of the NASA Mars 2020 rover Perseverance landing site in Jezero crater based on mosaicked images from the Mars Reconnaissance Orbiter High Resolution Imaging Science Experiment ...
R. L. Kirk   +7 more
doaj   +1 more source

AN ITERATIVE PIXEL-LEVEL IMAGE MATCHING METHOD FOR MARS MAPPING USING APPROXIMATE ORTHOPHOTOS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Mars mapping is essential to the scientific research of the red planet. The special terrain characteristics of Martian surface can be used to develop the targeted image matching method.
X. Geng   +4 more
doaj   +1 more source

Simulation of Transient Topside Layer in the Martian Ionosphere

open access: yesRemote Sensing, 2023
Many Mars missions, e.g., Mariner, Viking, Mars Global Surveyor (MGS), Mars Express (MEX), and Mars Atmosphere and Volatile Evolution (MAVEN), have been launched to study the Martian atmosphere.
Chunhua Jiang, Rong Tian, Lehui Wei
doaj   +1 more source

Optimization of the Mars ionospheric radio occultation retrieval

open access: yesEarth and Planetary Physics, 2018
Electron density is a key parameter to characterize Martian ionospheric structure and dynamics. Based on the ephemeris and auxiliary information derived from the Spacecraft, Planet, Instruments, C-matrix, and Events (SPICE) toolkit, we calculated the ...
JunYi Wang   +3 more
doaj   +1 more source

Rosetta and Mars Express observations of the influence of high solar wind pressure on the Martian plasma environment [PDF]

open access: yesAnnales Geophysicae, 2009
We report on new simultaneous in-situ observations at Mars from Rosetta and Mars Express (MEX) on how the Martian plasma environment is affected by high pressure solar wind.
N. J. T. Edberg   +22 more
doaj   +1 more source

MARSIS Observations of the Martian Nightside Ionosphere During the September 2017 Solar Event

open access: yesGeophysical Research Letters, 2018
We present topside ionospheric sounding on the nightside of Mars during the September 2017 solar event by Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) on board Mars Express along with complementary dayside observations from Mars ...
Y. Harada   +7 more
doaj   +1 more source

Acute Neurological Events in Children With Hemoglobin SC Disease: A Multicenter Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neurological manifestations in children with hemoglobin SC (HbSC) disease remain insufficiently characterized, particularly regarding acute events. The aim of this study was to describe the spectrum and frequency of acute neurological events in a multicenter cohort of children with HbSC disease.
Célia Paulmin   +11 more
wiley   +1 more source

Analysis of Mars data using Arcobjects and Modelbuilder [PDF]

open access: yes, 2007
Geographic Information Systems (GIS) are powerful tools for integration of different planetary datasets, e.g. images, spectral data, and digital terrain models which are typically given in different formats like vector and raster.
Saiger, Peter   +5 more
core  

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