Juan Carlos Gómez Martı́n
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View article: Observational ozone datasets over the global oceans and polar regions (version 2024)
Observational ozone datasets over the global oceans and polar regions (version 2024) Open
Studying tropospheric ozone over the remote areas of the planet, such as the open oceans and the polar regions, is crucial to understand the role of ozone as a global climate forcer and regulator of atmospheric oxidative capacity. A focus …
View article: Aerosol Dust Optical Properties from Martian Analogs in the UV-vis-NIR
Aerosol Dust Optical Properties from Martian Analogs in the UV-vis-NIR Open
. IntroductionAerosol dust particles are an important component in planetary atmospheres, influencing energy balance, thermal structure, weather systems, and remote observations. Despite their importance, radiative-transfer models and clim…
View article: The Granada-Amsterdam Light Scattering Database: Experimental optical properties of cosmic dust analogue samples.
The Granada-Amsterdam Light Scattering Database: Experimental optical properties of cosmic dust analogue samples. Open
The characterization of dust particles in the Solar System is a fundamental component of planetary science. These particles are present in a variety of environments, including the atmospheres of planets and satellites, comets, or covering …
View article: Observational ozone data over the global oceans and polar regions: The TOAR-II Oceans data set version 2024
Observational ozone data over the global oceans and polar regions: The TOAR-II Oceans data set version 2024 Open
Studying tropospheric ozone over the remote areas of the planet, such as the open oceans and the polar regions, is crucial to understand the role of ozone as a global climate forcer and regulator of atmospheric oxidative capacity. A focus …
View article: Database of Martian dust optical properties in the UV-vis-NIR
Database of Martian dust optical properties in the UV-vis-NIR Open
The experimental data base of scattering matrices of three well-characterized Martian dust analogues with narrow particle size distributions representative of Martian dust aerosols is used to check the the suitability of hexahedra model pa…
View article: Role of the stratosphere in the global mercury cycle
Role of the stratosphere in the global mercury cycle Open
Mercury (Hg) is a global pollutant with substantial risks to human and ecosystem health. By upward transport in tropical regions, mercury enters into the stratosphere, but the contribution of the stratosphere to global mercury dispersion a…
View article: Ejected Particles after Impact Splash on Mars: Electrification
Ejected Particles after Impact Splash on Mars: Electrification Open
Within the RoadMap project, we investigated the microphysical aspects of particle collisions during saltation on the Martian surface in laboratory experiments. In earlier works, we followed the size distribution of ejected particles, their…
View article: Ejected Particles after Impact Splash on Mars: Electrification
Ejected Particles after Impact Splash on Mars: Electrification Open
Within the RoadMap project we investigated the microphysical aspects of particle collisions during saltation on the Martian surface in laboratory experiments. Following the size distribution of ejected particles, their aerodynamic properti…
View article: Experimental Scattering Matrices of Martian Dust Aerosols with Narrow Particle-size Distributions
Experimental Scattering Matrices of Martian Dust Aerosols with Narrow Particle-size Distributions Open
We present experimental scattering matrices of the JSC Mars-1, MMS-2, and MGS-1 simulants at 488 and 640 nm. The analogs were processed so that narrow size distributions representative of Martian dust aerosols during different dust cycles …
View article: Erratum: “Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs” (2023, ApJS, 270, 2)
Erratum: “Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs” (2023, ApJS, 270, 2) Open
This is a correction for 2024 The Astrophysical Journal Supplement Series 270 2, \thttp://hdl.handle.net/10261/347552
View article: Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs Open
Astronomical observations of the polarized intensity of scattered visible light have revealed the presence of dust envelopes around different types of evolved stars. These observations have helped determine the diameter and width of dust s…
View article: Spectroscopy of a mesospheric ghost reveals iron emissions
Spectroscopy of a mesospheric ghost reveals iron emissions Open
View article: Optical Constants of Martian Dust Analogs at UV–Visible–Near-infrared Wavelengths
Optical Constants of Martian Dust Analogs at UV–Visible–Near-infrared Wavelengths Open
We present an advanced light-scattering model to retrieve the optical constants of three Martian dust analogs: Johnson Space Center regolith simulant, Enhanced Mojave Mars Simulant, and Mars Global Simulant. The samples are prepared to hav…
View article: Ejected Particles after Impact Splash on Mars: Aggregates and Aerodynamics
Ejected Particles after Impact Splash on Mars: Aggregates and Aerodynamics Open
Our earlier laboratory measurements showed that low-velocity sand impacts release fine <5 μ m dust from a Martian simulant soil. This dust will become airborne in the Martian atmosphere. Here, we extend this study by measuring aerodynamic …
View article: Natural short-lived halogens exert an indirect cooling effect on climate
Natural short-lived halogens exert an indirect cooling effect on climate Open
View article: Experimental phase function and degree of linear polarization curve of olivine and spinel and the origin of the Barbarian polarization behavior
Experimental phase function and degree of linear polarization curve of olivine and spinel and the origin of the Barbarian polarization behavior Open
We explore experimentally possible explanations of the polarization curves of the sunlight reflected by the Barbarian asteroids. Their peculiar polarization curves are characterized by a large inversion angle, around 30 degrees, which coul…
View article: Polarimetric imaging for the detection of synthetic models of SARS-CoV-2: A proof of concept
Polarimetric imaging for the detection of synthetic models of SARS-CoV-2: A proof of concept Open
View article: Interactions between natural short-lived halogens and atmospheric oxidation capacity
Interactions between natural short-lived halogens and atmospheric oxidation capacity Open
Observational evidence shows the ubiquitous presence of short-lived halogens in the global atmosphere. This includes the biogenic contribution of organic very short-lived halocarbons as well as the abiotic source of inorganic halogens thro…
View article: Spectroscopy of a mesospheric ghost reveals iron emissions
Spectroscopy of a mesospheric ghost reveals iron emissions Open
Dataset and Python code to generate figures 3 and 4 in article titled "Spectroscopy of a mesospheric ghost reveals iron emissions".
View article: Experimental phase function and degree of linear polarization curve of olivine and spinel and the origin of the Barbarian polarization behaviour
Experimental phase function and degree of linear polarization curve of olivine and spinel and the origin of the Barbarian polarization behaviour Open
We explore experimentally possible explanations of the polarization curves of the sunlight reflected by the Barbarian asteroids. Their peculiar polarization curves are characterized by a large-inversion angle, around 30°, which could be re…
View article: Attempting to use dust analogue from lab to study Martian atmosphere
Attempting to use dust analogue from lab to study Martian atmosphere Open
<div> <p><strong>Attempting to use dust analogue from lab to study Martian atmosphere</strong></p> </div> <ul> <li><strong> Flimon<sup>1</sup>, J. Erwin<sup>1</sup&…
View article: RoadMap to understand the role of dust in the atmosphere of Mars
RoadMap to understand the role of dust in the atmosphere of Mars Open
<p>The atmosphere of Mars is driven by different cycles – seasonal cycles of temperature, dust, ice, water vapour, CO2, etc. – which are coupled through transport: dust is blown from the surface by winds, carried …
View article: Characterizing cometary dust grains with polarimetry
Characterizing cometary dust grains with polarimetry Open
<p><span dir="ltr" role="presentation">Light scattering experiments have been carried out at visible light for two kinds </span><span dir="ltr" role="presentation">of dust sam…
View article: Releasing Atmospheric Martian Dust in Sand Grain Impacts
Releasing Atmospheric Martian Dust in Sand Grain Impacts Open
Emission of dust up to a few microns in size by impacts of sand grains during saltation is thought to be one source of dust within the Martian atmosphere. To study this dust fraction, we carried out laboratory impact experiments. Small num…
View article: Experimental scattering matrices of Martian dust analogues for radiative modelling and remote sensing applications.
Experimental scattering matrices of Martian dust analogues for radiative modelling and remote sensing applications. Open
<p>The scattering matrices of three well-characterized Martian dust simulants (JSC Mars-1, MGS-1 and MMS-2) have been measured at the Cosmic Dust Laboratory in Granada as part of the experimental work package of the <strong>ROl…
View article: Retrieving scattering properties of Martian dust analogues by modelling light scattering
Retrieving scattering properties of Martian dust analogues by modelling light scattering Open
<p>We applied advanced light-scattering models on laboratory measurements to retrieve the scattering properties of Martian dust analogues JSC Mars-1, MMS-2, and MGS-1. The retrieval was performed in two parts: first, we computed the …
View article: The Chemistry of Mercury in the Stratosphere
The Chemistry of Mercury in the Stratosphere Open
Mercury, a global contaminant, enters the stratosphere through convective uplift, but its chemical cycling in the stratosphere is unknown. We report the first model of stratospheric mercury chemistry based on a novel photosensitized oxidat…
View article: Insights into the Chemistry of Iodine New Particle Formation: The Role of Iodine Oxides and the Source of Iodic Acid
Insights into the Chemistry of Iodine New Particle Formation: The Role of Iodine Oxides and the Source of Iodic Acid Open
Iodine chemistry is an important driver of new particle formation in the marine and polar boundary layers. There are, however, conflicting views about how iodine gas-to-particle conversion proceeds. Laboratory studies indicate that the pho…
View article: Polarimetric imaging for the detection of synthetic models of SARS-CoV-2: a proof of concept
Polarimetric imaging for the detection of synthetic models of SARS-CoV-2: a proof of concept Open
Objective: To conduct a proof-of-concept study of the detection of two synthetic models of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using polarimetric imaging. Methods: Two SARS-CoV-2 models were prepared as engineered …
View article: Ion-molecule reaction laboratory experiments show that iodine oxides explain CIMS atmospheric observations attributed to iodine oxoacids&#160;
Ion-molecule reaction laboratory experiments show that iodine oxides explain CIMS atmospheric observations attributed to iodine oxoacids  Open
<p>Iodine chemistry is a driver of new particle formation in the marine and polar boundary layer, with potential influence on cloud formation and properties. There are however conflicting views about how iodine gas-to-particle conver…