PJ
Member Since 2015
Pratik Joshi
Science Retrieval Algorithm Development Lead for NASA's Carruthers Geocorona Observatory, University of Illinois at Urbana-Champaign
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Climatological variability of the vertical limiting flux of atomic hydrogen in Earth's atmosphere as observed by NASA's TIMED/SABER
AGU 2024
spa-aeronomy | 13 december 2024
Pratik Joshi, Lara Waldrop, Gary R. Swenson
The vertical limiting flux of hydrogen (H) atoms available to escape from the Earths atmosphere is governed by the rate of upward diffusion of hydroge...
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Retrieval of thermal atomic hydrogen density from Lyman-alpha emission measured by NASA's TIMED/GUVI and by NASA’s Carruthers Geocorona Observatory
AGU 2024
spa-aeronomy | 11 december 2024
Pratik Joshi, Lara Waldrop, Thomas J. Immel, Heath...
Atomic hydrogen (H) plays an important role in Earths atmospheric evolution and its response to geomagnetic storms. Quantification of the global and t...
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The Carruthers Geocorona Observatory: A New Era for Exospheric Sensing at Earth
DYNAMIC EXOSPHERES OF TERRESTRIAL BODIES THROUGH THE SOLAR SYSTEM II ORAL
planetary sciences | 13 december 2023
Lara Waldrop, Thomas J. Immel, John T. Clarke, Pra...
Reliable characterization of the spatial structure and temporal variability of Earth's exosphere is notoriously difficult, owing mainly to the challen...
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Solar cycle variability of hydrogen density at the Martian exobase
PROCESSES IN THE PRESENT-DAY ATMOSPHERE OF MARS IV POSTERS
planetary sciences | 10 december 2020
Pratik Joshi, Dolon Bhattacharyya, Lara Waldrop, M...
Reliable empirical quantification of atomic hydrogen (H) density in the Martian thermosphere and lower exosphere is needed for advancing understanding...
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Quantification of the vertical limiting flux of hydrogen at Earth using TIMED/SABER
COMPOSITION, WIND, AND TEMPERATURE VARIABILITY IN THE MESOSPHERE AND IONOSPHERE/THERMOSPHERE III POSTERS
spa-aeronomy | 10 december 2019
Pratik Joshi, Lara Waldrop
The limiting flux of H escape at Earth is governed by its rate of upward diffusion through the mesopause (∼100 km). In the MLT region, hydrogen exists...
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Quantification of the Vertical Transport and Escape of Atomic Hydrogen in the Terrestrial Upper Atmosphere
JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS
09 december 2019
Pratik Joshi, Yamuna Phal, Lara Waldrop
Measurements of the limiting escape rate of atomic hydrogen (H) atoms at Earth and the relative significance of thermal evaporation and nonthermal ...
Parametric estimation of neutral hydrogen density under charge exchange and quantification of its effect on plasmasphere-ionosphere coupling
FALL MEETING 2018
11 december 2018
Pratik Joshi, Lara Waldrop
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Ionospheric O+ Momentum Balance Through Charge Exchange With Thermospheric O Atoms
JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS
20 november 2018
Pratik Joshi, Lara Waldrop, Christiano G. Garnett ...
One of the most notorious uncertainties in ionosphere/thermosphere physics concerns the cross section for resonant charge exchange between neutral ...