219 citations · 1k across the 28 of their papers we have counts for
29 papers
Properties of the Nili Fossae Olivine-clay-carbonate lithology: orbital and in situ at Séítah
Adrian J. Brown, Linda Kah, Lucia Mandon +31
We examine the observed properties of the Nili Fossae olivine-clay-carbonate lithology from orbital data and in situ by the Mars 2020 rover at the Séítah unit in Jezero crater, inc…
Using asymmetric band analysis to interpret the electronic spectroscopy of the Olivine family
Adrian J. Brown
This paper discusses the mathematical aspects of band fitting and introduces the mathematics of the Asymmetric Gaussian shape and its tangent space for the first time. First, we de…
Mars2020 and Mars Sample Return
Adrian J. Brown
Mars Sample Return consists of three separate missions, the first of which is the Mars2020 rover which will land at Jezero crater on February 18, 2021. We describe here our remote…
Ancient Australian Rocks and the Search for Life on Mars
Adrian J. Brown, Christina E. Viviano, Timothy A. Goudge
We discuss the results of a remote sensing study that has revealed new details about an important rock unit dominated by two minerals that can be associated with volcanism (olivine…
The case for a multi-channel polarization sensitive LIDAR for investigation of insolation-driven ices and atmospheres
Adrian J. Brown, Gorden Videen, Evgenij Zubko +20
All LIDAR instruments are not the same, and advancement of LIDAR technology requires an ongoing interest and demand from the community to foster further development of the required…
Ultramafic talc-carbonate unit -- The North Pole Dome and Dresser Formation
Adrian J. Brown
Here we describe the ultramafic talc-carbonate unit of the North Pole Dome. The North Pole Dome (NPD) is located in the centre of the East Pilbara Terrane (Van Kranendonk et al., 2…
Olivine-Carbonate Mineralogy of Jezero Crater
Adrian J. Brown, Christina E. Viviano, Timothy A. Goudge
A well-preserved, ancient delta deposit, in combination with ample exposures of Mg-carbonate rich materials, make Jezero Crater in Nili Fossae a compelling astrobiological site and…
Observations of a new stabilizing effect for polar water ice on Mars
Adrian J. Brown, Jonathan Bapst, Shane Byrne
Using the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), we map the temporal variability of water ice absorption bands over the near-polar ice mound in Louth crater,…
Circular Polarization and Coherent Backscattering
Adrian J. Brown
We extend the work of Mishchenko et al. (2000) regarding the exact results of the polarization effect, using the theory of Amic et al. (1997) to derive a model prediction for the p…
Cladistical analysis of the Jovian and Saturnian satellite systems
Timothy. R. Holt, Adrian. J. Brown, David Nesvorný +2
Jupiter and Saturn each have complex systems of satellites and rings. These satellites can be classified into dynamical groups, implying similar formation scenarios. Recently, a la…
Detection and Quantification of Volatiles at Mars using a multispectral LIDAR
Adrian J. Brown, Timothy Michaels, Lori Fenton +14
We present a concept for using a polarization sensitive multispectral lidar to map the seasonal distribution and exchange of volatiles among the reservoirs of the Martian surface a…
Martian north polar cap summer water cycle
Adrian J. Brown, Wendy M. Calvin, Patricio Becerra +1
A key outstanding question in Martian science is 'are the polar caps gaining or losing mass and what are the implications for past, current and future climate?' To address this que…
Correlations of atmospheric water ice and dust in the Martian Polar regions
Adrian J. Brown, Michael J. Wolff, Jeffrey D. Scargle
We report on the interannual variability of the atmospheric ice/dust cycle in the Martian polar regions for Mars Years 28-30. We used CRISM emission phase function measurements to…
Quantification of summertime water ice deposition on the Martian north polar ice cap
Adrian J. Brown, Wendy M. Calvin, Patricio Becerra +1
We use observations from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) of the north polar cap during late summer for two Martian years, to monitor the complete s…
Equivalence relations for Mueller matrix symmetries of laboratory, LIDAR and planetary scattering geometries
Adrian J. Brown
Symmetry relationships for optical observations of matter generally fall into several common scattering geometries. The 'planetary' configuration is preferred among a group of obse…
Interannual observations and quantification of summertime H2O ice deposition on the Martian CO2 ice south polar cap
Adrian J. Brown, Sylvain Piqueux, Timothy N. Titus
The spectral signature of water ice was observed on Martian south polar cap in 2004 by the Observatoire pour l'Mineralogie, l'Eau les Glaces et l'Activite (OMEGA) (Bibring et al.,…
The science case for a modern, multi-wavelength, polarization-sensitive LIDAR in orbit around Mars
Adrian J. Brown, Timothy I. Michaels, Shane Byrne +5
We present the scientific case to build a multiple-wavelength, active, near-infrared (NIR) instrument to measure the reflected intensity and polarization characteristics of backsca…
Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) north polar springtime recession mapping: First Three Mars years of observations
Adrian J. Brown, Wendy M. Calvin, Scott L. Murchie
We report on mapping of the north polar region of Mars using data from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument. We have observed three Mars Year…
Hydrothermal formation of Clay-Carbonate alteration assemblages in the Nili Fossae region of Mars
Adrian J. Brown, Simon J. Hook, Alice M. Baldridge +6
The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) has returned observations of the Nili Fossae region indicating the presence of Mg- carbonate in small (<10km sq2),…
Louth Crater: Evolution of a layered water ice mound
Adrian J. Brown, Shane Byrne, Livio L. Tornabene +1
We report on observations made of the ~36km diameter crater, Louth, in the north polar region of Mars (at 70°N, 103.2°E). High-resolution imagery from the instruments on the Mars R…
The MARTE VNIR Imaging Spectrometer Experiment: Design and Analysis
Adrian J. Brown, Brad Sutter, Stephen Dunagan
We report on the design, operation, and data analysis methods employed on the VNIR imaging spectrometer instrument that was part of the Mars Astrobiology Research and Technology Ex…
MR PRISM - Spectral Analysis Tool for the CRISM
Adrian J. Brown, Michael Storrie-Lombardi
We describe a computer application designed to analyze hyperspectral data collected by the Compact Infrared Spectrometer for Mars (CRISM). The application links the spectral, imagi…
Hydrothermal alteration at the Panorama Formation, North Pole Dome, Pilbara Craton, Western Australia
Adrian J. Brown, Thomas J. Cudahy, Malcolm R. Walter
An airborne hyperspectral remote sensing dataset was obtained of the North Pole Dome region of the Pilbara Craton in October 2002. It has been analyzed for indications of hydrother…
Hyperspectral imaging spectroscopy of a Mars analogue environment at the North Pole Dome, Pilbara Craton, Western Australia
Adrian J. Brown, Malcolm Walter, Thomas Cudahy
A visible and near infrared (VNIR) to shortwave infrared (SWIR) hyperspectral dataset of the Early Archaean North Pole Dome, Pilbara Craton, Western Australia, has been analysed fo…