Comparison of the DAN Experiment Data on the Subsurface Water Content Along the Curiosity Rover Traverse in Gale Crater with the MRO CRISM Experiment Data

2019 ◽  
Author(s):  
M. V Djachkova ◽  
◽  
S. Yu. Nikiforov ◽  
D. I. Lisov ◽  
I. G. Mitrofanov ◽  
...  
Keyword(s):  
Water Content ◽  
Subsurface Water ◽  
Experiment Data ◽  
Gale Crater ◽  
Curiosity Rover

Estimation of Water Content in Vera Rubin Ridge and Glen Torridon areas Based on Measurements of the MSL/DAN Instrument in Gale crater

2021 ◽  
Author(s):  
Sergei Nikiforov ◽  
Maya Djachkova ◽  
Igor Mitrofanov ◽  
Maxim Litvak ◽  
Denis Lisov ◽  
...  
Keyword(s):  
Water Content ◽  
Qualitative Difference ◽  
Bound Water ◽  
Data Set ◽  
Imaging Spectrometer ◽  
Gale Crater ◽  
Martian Soil ◽  
Notable Increase ◽  
Bound Water Content ◽  
Curiosity Rover

<p>This work presents the latest results on the estimations of Water Equivalent Hydrogen (WEH) gathered in martian areas Vera Rubin ridge (VRR) and Glen Torridon (GT) by the Dynamic Albedo of Neutron (DAN) instrument installed onboard NASA’s Curiosity rover. The main science objective of DAN is to study bound water content in shallow layer of martian subsurface down to 0.6 m [1].</p><p>Extensive scientific campaign on Vera Rubin ridge was started in the middle of 2017 and lasted until the beginning of 2019 when the rover reached another region – Glen Torridon. VRR is mostly related to hematite minerals that might be formed in the presence of liquid water. On the other hand, GT region is thought to be associated with clay minerals, according to CRISM observations [2].</p><p>We will present the latest results on DAN passive observations in these Mars areas. Data are referred to the period of more than 3 years of observations or MSL traverse segment from 17 km to 23 km. The main result is the notable increase of WEH in GT in comparison with VRR, as well as in comparison with the whole Curiosity traverse. Possibly, the increase may indicate on the qualitative difference in neutron-absorption elements that are forming the soil of the GT region.</p><p>References:</p><p>[1] <em>Mitrofanov, I. G., et al., (2014). Water and chlorine content in the Martian soil along the first 1900 m of the Curiosity rover traverse as estimated by the DAN instrument. J. Geophys. Res., 119(7), 1579–1596. doi:10.1002/2013JE004553.</em></p><p>[2] <em>Murchie, S. L., et al. (2009), Compact Reconnaissance Imaging Spectrometer for Mars investigation and data set from the Mars Reconnaissance Orbiter's primary science phase, J. Geophys. Res., 114, E00D07, doi:10.1029/2009JE003344.</em></p>

Testing correspondence between areas with hydrated minerals, as observed by CRISM onboard MRO, and spots of enhanced subsurface water content, as found by DAN along the traverse of Curiosity

2020 ◽  
Author(s):  
Maya Djachkova ◽  
Igor Mitrofanov ◽  
Maxim Litvak ◽  
Denis Lisov ◽  
Sergei Nikiforov ◽  
...  
Keyword(s):  
Mineralogical Composition ◽  
Subsurface Water ◽  
Martian Surface ◽  
Imaging Spectrometer ◽  
Gale Crater ◽  
Sedimentary Deposits ◽  
Standard Value ◽  
The Mean ◽  
Hydrated Minerals ◽  
Curiosity Rover

<p>The Dynamic Albedo of Neutrons (DAN) instrument designed to detect neutrons in order to determine hydrogen abundance in the Martian subsurface (down to 1 m deep) is successfully working onboard Mars Science Laboratory (MSL) Curiosity rover for more than seven years. The Curiosity rover covered more than 20 km on the Martian surface and crossed a range of terrain types and geological structures of different mineralogical composition.</p><p>We investigate the possible correlation between the water equivalent hydrogen (WEH) value, as measured by DAN along the Curiosity traverse, and the presence of hydrated minerals, as observed from the orbit by Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) onboard Mars Reconnaissance Orbiter.  </p><p>Our analysis of the WEH value from DAN measurements in Gale crater and the CRISM data, reflecting the distribution of hydrated/hydroxylated minerals on the surface of this crater, shows a confident increase of the average WEH values for the surface elements, containing certain types of minerals, in comparison with surface elements, that do not contain any of them. This increase is shown to become higher for surface with more prominent spectral features of hydrated/ hydroxylated minerals on the surface. Thus, certain types of minerals being parts of the sedimentary deposits composing Gale crater, should have considerable thickness, which is sufficient for active neutron sensing in DAN measurements. To explain the correspondence, one may assume that large blocks of certain mineral composition are distributed over the traverse, the tops of which are observed by CRISM from the Martian orbit, and the volumes of which are detectable by DAN on the Martian surface.</p><p>The bottom of the crater is thought to be a composition of a uniform regolith and sedimentary blocks of minerals with different level of hydration. The fraction of the regolith contains a standard value of WEH, about 2.6 wt.%, and the  fraction of minerals, provided they are there, might contribute to some increase of the mean WEH values, up to 3.8 wt.%, as they are obtained at some spots from the DAN neutron sensing.</p>

Analysis of Subsurface Water Content with Integrated Techniques.

10.3383/1.1.8 ◽  
2008 ◽  
Vol 1 (1) ◽  
pp. 109-123 ◽  
Author(s):  
G. LEUCCI ◽  
R. CATALDO ◽  
G. DE NUNZIO
Keyword(s):  
Water Content ◽  
Subsurface Water

MORPHOLOGICAL DIVERSITY OF MARTIAN EOLIAN BEDFORMS AS REVEALED BY THE CURIOSITY ROVER AT GALE CRATER, MARS

2017 ◽  
Author(s):  
Mathieu G.A. Lapotre ◽  
◽  
Ryan C. Ewing ◽  
Ryan C. Ewing ◽  
Michael P. Lamb ◽  
...  
Keyword(s):  
Morphological Diversity ◽  
Gale Crater ◽  
Curiosity Rover

scholarly journals Scientists Turn Back Time to Track Methane Emissions on Mars

Eos ◽  
2022 ◽  
Vol 103 ◽  
Author(s):  
JoAnna Wendel
Keyword(s):  
Methane Emissions ◽  
Gale Crater ◽  
Curiosity Rover

Period spikes of methane on Mars could originate inside Gale crater, where NASA’s Curiosity rover is currently exploring.s

scholarly journals Identification of the groundwater existence by geoelectrical method

2020 ◽  
Vol 4 (2) ◽  
pp. 36-42
Author(s):  
I Ketut Sukarasa ◽  
Ida Bagus Alit Paramarta
Keyword(s):  
Surface Water ◽  
Water Content ◽  
Subsurface Water ◽  
Rock Layer ◽  
Work Process ◽  
Electric Currents ◽  
Subsurface Structures ◽  
On Line ◽  
Bearing Layer ◽  
2D Images

Research has been carried out to identify the presence of subsurface water in Selulung Village, Kintamani District, Bangli Regency using 2D geoelectric methods. The work process of this research is the first to collect data directly by using a geoelectric device with Wenner configuration. Electric currents are injected from the surface to the subsurface through the current electrodes which are put on the earth's surface. The collected data is then processed using the Res2Din software version 3.71.118. The software results in the form of 2D images are direct lateral images of subsurface structures. From the three trajectories identified, namely at the coordinates  8°12'18.7"S 115°16'08.3"E the lowest resistivity value was 178 Ohm m with a depth of 10 m which was thought to be a rock layer with surface water content. On line 2 at coordinates 8°12'16.1"S 115°16'09.7"E the resistivity value is 6 ohm.m up to 660,000 ohm.m, the maximum depth obtained is 24 m. This line is thought to be a water-bearing layer because the value of resistance is low. Line 3 which is in the coordinates 8°12'16.3"S 115°15'50.0"E the distribution of resistivity values varies from 42 - 9,400 Ohm m.

Sign in / Sign up

Export Citation Format

Share Document