41 to 50 of 510 Results
Dec 1, 2020
Posselt, Derek J, 2020, "Which combinations of environmental conditions and microphysical parameter values produce a given orographic precipitation distribution?", https://doi.org/10.48577/jpl.LSECRL, Journal of the Atmospheric Sciences, JPL Open Repository
This study applies an idealized modeling framework, alongside a Bayesian Markov chain Monte Carlo (MCMC) algorithm, to explore which combinations of upstream environmental conditions and cloud microphysical parameter values can produce a particular precipitation distribution over... |
Nov 30, 2020
Daniel Cusworth, 2020, "Multi-satellite imaging of a gas well blowout enables quantification of total methane emissions", https://doi.org/10.48577/jpl.OBDCU4, Geophysical Research Letters, JPL Open Repository
Incidents involving loss of control of oil/gas wells can result in large but variable emissions whose impact on the global methane budget is currently unknown. On November 1, 2019, a gas well blowout was reported in the Eagle Ford Shale. By combining satellite observations at dif... |
Nov 30, 2020
Buscicchio, Alessandro, 2020, "Improving Current-based Torque Sensing forHarmonic Drives Leveraging Asymmetry inDirectional Efficiency.", https://doi.org/10.48577/jpl.KBMEBA, IEEE ICRA, JPL Open Repository
Torque estimation is a critical requirement for several manipulation and mobility tasks such as closed-loop force control, gravity compensation, contact detection, etc. This can be achieved by direct sensing with torque sensors which are heavy and significantly increase the load... |
Nov 30, 2020
Kazuyuki Miyazaki, 2020, "Air quality response in China linked to the 2019 novel Coronavirus (COVID-19) mitigation", https://doi.org/10.48577/jpl.Z9TZPV, Science, JPL Open Repository
Efforts to stem the spread of COVID-19 in China hinged on severe restrictionsto human movement starting January 23rd, 2020 in Wuhan and subsequentlyto other provinces. Here, we quantify the ancillary impacts on air pollutionand human health using inverse emissions estimates based... |
Nov 24, 2020
Baijun Tian, 2020, "Estimating and Removing the Sampling Biases of the AIRS Obs4MIPs V2 Data", https://doi.org/10.48577/jpl.1LSWAX, Earth and Space Science, JPL Open Repository
The Atmospheric Infrared Sounder (AIRS) Observations for Model Intercomparison Projects (Obs4MIPs) Version 2 (V2) monthly mean tropospheric air temperature, specific humidity and relative humidity data designed for climate model evaluation in the context of the Coupled Model Inte... |
Nov 23, 2020
Roa Vicens, Javier, 2020, "Recoverability of known near-Earth asteroids", https://doi.org/10.48577/jpl.BXOLCG, Astronomical Journal, JPL Open Repository
This paper analyzes the current population of known near-Earth asteroids (NEAs) and presents statistics on the recoverability of NEAs with both targeted observation campaigns and all-sky surveys. For an asteroid to be observable at a future apparition, given the right geometry, t... |
Nov 19, 2020
Neal Turner, 2020, "Inferring (Sub)millimeter Dust Opacities and Temperature Structure in Edge-on Protostellar Disks From Resolved Multi-Wavelength Continuum Observations: The Case of the HH212 Disk", https://doi.org/10.48577/jpl.23HXCH, Monthly Notices of the Royal Astronomical Society, JPL Open Repository
(Sub)millimeter dust opacities are required for converting the observable dust continuum emission to the mass, but their values have long been uncertain, especially in disks around young stellar objects. We propose a method to constrain the opacity 𝜅_𝜈 in edge-on disks from a c... |
Nov 19, 2020
Mastropietro, A. J. J, 2020, "Hot Isostatic Pressing of Ultrasonic Additive Manufacturing Liquid Cold Plate Heat Exchangers", https://doi.org/10.48577/jpl.FV0SGH, AIAA Journal of Spacecraft and Rockets, JPL Open Repository
The aim of this paper is to discuss the improved performance of an AA 6061 Ultrasonic Additive Manufacturing (UAM) heat exchanger device through the use of traditional hot isostatic pressing (HIP) and combined HIP and T6 heat treatment in a rapid quenching HIP. The paper begins b... |
Nov 19, 2020
Jason Rhodes, 2020, "Reconciling galaxy cluster shapes, measured by theorists vs observers", https://doi.org/10.48577/jpl.NE9MGK, MNRAS, JPL Open Repository
If properly calibrated, the shapes of galaxy clusters can be used to investigate many physical processes: from feedback and quenching of star formation, to the nature of dark matter. Theorists frequently measure shapes using moments of inertia of simulated particles’. We instead... |
Nov 18, 2020
Adams, Kyra, 2020, "An evaluation of remotely sensed and in-situ data sufficiency for SGMA-scale groundwater studies in the Central Valley, California", https://doi.org/10.48577/jpl.YF4C4Z, Journal of American Water Resources Association, JPL Open Repository
California’s Central Valley aquifer represents a critical freshwater resource for the state, providing drinking water to 6.5 million residents and irrigation water for the nation. As a partially non-renewable resource, increasing demands have led to a steady decline of aquifer wa... |
