Results 31 to 40 of about 1,956 (197)

GLOBAL BUNDLE ADJUSTMENT WITH VARIABLE ORIENTATION POINT DISTANCE FOR PRECISE MARS EXPRESS ORBIT RECONSTRUCTION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The photogrammetric bundle adjustment of line scanner image data requires a precise description of the time-dependent image orientation. For this task exterior orientation parameters of discrete points are used to model position and viewing direction of ...
J. Bostelmann, C. Heipke
doaj   +1 more source

ANOMALY DETECTION PERFORMANCE COMPARISON ON ANOMALY-DETECTION BASED CHANGE DETECTION ON MARTIAN IMAGE PAIRS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The surface of Mars has been imaged in visible wavelengths for more than 40 years since the first flyby image taken by Mariner 4 in 1964. With higher resolution from orbit from MOC-NA, HRSC, CTX, THEMIS, and HiRISE, changes can now be observed on high ...
A. R. D. Putri, P. Sidiropoulos, J.-P. Muller   +2 more
doaj   +1 more source

Evaluating Stereo Digital Terrain Model Quality at Mars Rover Landing Sites with HRSC, CTX, and HiRISE Images

Remote Sensing, 2021
We have used high-resolution digital terrain models (DTMs) of two rover landing sites based on mosaicked images from the High-Resolution Imaging Science Experiment (HiRISE) camera as a reference to evaluate DTMs based on High-Resolution Stereo Camera ...
Randolph L. Kirk, David P. Mayer, Robin L. Fergason, Bonnie L. Redding, Donna M. Galuszka, Trent M. Hare, Klaus Gwinner   +6 more
doaj   +1 more source

Probing Subsurface Properties With Mission Hardware: Lessons Learned From Artificial Impacts of Mars 2020

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Hardware released during spacecraft entry can generate hypervelocity impacts that provide unique constraints on planetary subsurface properties. During NASA's Perseverance descent, two tungsten cruise ballast mass devices (CBMD) and fragments of the cruise stage formed meter‐scale craters north‐west of Jezero crater, in one of the sinuous ...
A. J. Sokołowska, I. J. Daubar, G. S. Collins, F. Calef, A. Jones   +4 more
wiley   +1 more source

Photogrammetric co-registration and photometric analysis of HRSC Phobos images [PDF]

, 2012
HRSC images from Mars Express Phobos flybys are used to study the photometric character of the surface of the Martian satellite. This investigation involves measuring of surface reflectance and illumination angles for estimates of a phase curve, and ...
Patsyn, V., Roatsch, Thomas, Hoffmann, Harald, Patsyn, Vasily, Grechishev, Alexander, Oberst, J., Matz, K.-D., Matz, Klaus-Dieter, Willner, Konrad, Willner, K., Grechishev, A., Pasewaldt, Andreas, Oberst, Jürgen, Wählisch, Marita, Scholten, Frank   +14 more
core   +1 more source

Progress and trends in high-resolution characterization of organic-contaminated sites: A review

Shuiwen dizhi gongcheng dizhi
The heterogeneity of subsurface aquifer causes organic-contaminated sites to commonly exhibit complex source zones, contaminant back diffusion, and concentration rebound.
Xiaoqing SHI, Siyuan QIANG, Xueyuan KANG, Jichun WU   +3 more
doaj   +1 more source

Factors associated with poor sleep quality in nursing students from a private university in Ceará

O Mundo da Saúde, 2022
Sleep is essential for the physical, psychological, and social well-being of individuals. Its poor quality/quantity may lead to functional impairment in the performance of social activities and interpersonal relationships.
Huana Carolina Cândido Morais, Bianca Guilherme Gomes, Ana Karollaine da Silva de Holanda, Kamila Elen Alves Nogueira, Rafhael Fonseca, Ana Carolina Matias Dinelly Pinto, Igor Cordeiro Mendes   +6 more
doaj  

BATCH CO-REGISTRATION OF MARS HIGH-RESOLUTION IMAGES TO HRSC MC11-E MOSAIC [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Four NASA missions over the last forty years with onboard instruments for high-resolution orbital imaging have achieved both global coverage (with 6m CTX, 20m THEMIS-VIS and >8m Viking Orbiter cameras) as well as imaging with very high resolution in ...
P. Sidiropoulos, J.-P. Muller
doaj   +1 more source

Aluminum Phyllosilicate and Jarosite Formation Through Alteration of Reworked Al/Si‐Rich Volcaniclastic Sediments in Nili Fossae, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Aluminum phyllosilicates occur in 1–10s of km2 exposures of Noachian (∼3.7 Ga) rock across Mars and typically appear stratigraphically above Fe/Mg‐phyllosilicates. These units have been proposed to represent pedogenic basalt weathering sequences.
S. R. Baker, B. L. Ehlmann
wiley   +1 more source

High-resolution topography of Gusev crater using CTX data (Mars).

Geogaceta
High-resolution Digital Terrain Models (DTMs) of Mars are both limited and crucial for studying surface processes. The available DTMs generated from Mars Orbiter Laser Altimeter (MOLA) and High-Resolution Stereo Camera (HRSC) data offer limited ...
Ronny Steveen Anangonó Tutasig, Francisco Javier De Cos Juez, Susana Fernández Menéndez   +2 more
doaj   +1 more source