1 to 10 of 15 Results
Nov 30, 2021
Juilin Li, 2021, "The Potential Influence of Falling Ice Radiative Effects on Central Pacific El Niño Variability under Progressive Global Warming", https://doi.org/10.48577/jpl.AQHBMO, Environmental research letter, JPL Open Repository
AbstractThis study examines the potential influence of inserting falling ice (snow) radiative effects (FIREs) in GCMs on simulated surface wind stress and sea surface temperature (SST) in the evolution of Central Pacific El Niño (CP-El Niño) events under a progressive warming cli... |
Nov 23, 2021
Jonathan Jiang, 2021, "Assessing Planetary Complexity and Potential Agnostic Biosignatures using Epsilon Machines", https://doi.org/10.48577/jpl.XMNTOI, Nature Astronomy, JPL Open Repository
We present a new approach to exoplanet characterization using tech-niques from complexity science, with potential applications to biosig-nature detection. This agnostic method makes use of the temporalvariability of light reected or emitted from a planet. We use a tech-nique know... |
Nov 8, 2021
Jonathan Jiang, 2021, "Rotation Period Detection for Earth-like Exoplanets", https://doi.org/10.48577/jpl.STWVJY, The Astrophysical Journal, JPL Open Repository
A terrestrial planet’s rotation period is one of the key parameters that determines its climate and habitability. Current methods for detecting the rotation period of exoplanets are not suitable for terrestrial exoplanets. Here we demonstrate that, under certain conditions, the r... |
Oct 25, 2021
Jonathan Jiang, 2021, "Angular momentum distributions for observed and modeled exoplanetary systems", https://doi.org/10.48577/jpl.5JZN8U, The Astrophysical Journal, JPL Open Repository
The distribution of angular momentum of planets and their host stars provides important information on the formation and evolution of the planetary system. However, mysteries still remain, partly due to bias and uncertainty of the current observational datasets and partly due to... |
Sep 8, 2021
Vijay Natraj, 2021, "Inferring Planetary Complexity using Epsilon Machines: A Novel Approach to Agnostic Biosignatures", https://doi.org/10.48577/jpl.GHAY3R, Nature Astronomy, JPL Open Repository
We present a new approach to exoplanet assessment using techniques from complexity science. The majority of life detection schemes rely upon biochemical signatures and planetary context. However, it is increasingly recognized that extraterrestrial life could be very different to... |
Sep 1, 2021
Jonathan Jiang, 2021, "Influence of Indian Summer Monsoon on Tropopause, Trace gases and Aerosols in Asian Summer Monsoon Anticyclone observed by COSMIC, MLS and CALIPSO", https://doi.org/10.48577/jpl.UHKMIQ, Remote Sensing, JPL Open Repository
The existence of the Asian Summer Monsoon Anticyclone (ASMA) during the summer in the northern hemisphere, upper troposphere and lower stratosphere (UTLS) region plays a significant role in confining the trace gases and aerosols for a long duration thus affecting regional and glo... |
Jul 23, 2021
Jonathan Jiang, 2021, "Avoiding the “Great Filter”: A Projected Timeframe for Human Expansion Off-World", https://doi.org/10.48577/jpl.EQUXJ0, Nature Communications, JPL Open Repository
A foundational model has been developed based on trends built from empirical data of space exploration and computing power through the first six plus decades of the Space Age which projects earliest possible launch dates for human-crewed missions from cis-lunar space to selected... |
Jul 1, 2021
Juilin Li, 2021, "Improved Ice Content, Radiation, Precipitation and Low-level Circulation over the Tropical Pacific from ECMWF ERA-Interim to ERA5", https://doi.org/10.48577/jpl.XL8BJZ, ERL, JPL Open Repository
Abstract This study evaluates changes in simulated Pacific climate between two ECMWF re-analyses; (ERA) Interim (ERAI) and the newest ERA5. Changes in the Integrated Forecasting System (IFS) and possibly sea surface temperature result in greatly reduced discrepancies in ERA5’s ic... |
Jun 16, 2021
Jonathan Jiang, 2021, "Cloud condensation nuclei characteristics at the Southern Great Plains site: role of particle size distribution and aerosol hygroscopicity", https://doi.org/10.48577/jpl.RRHUM2, Environmental Research Letters, JPL Open Repository
activation ability of aerosols as cloud condensation nuclei (CCN) is crucial in climate and13 hydrological cycle studies, but their properties are not well known. We investigated the long-term14 measurements of atmospheric aerosol properties, CCN concentrations (NCCN) at supersat... |
Jun 2, 2021
Jonathan Jiang, 2021, "From COVID-19 to Future Electrification: Assessing Traffic Impacts on Air Quality by a Machine Learning Model", https://doi.org/10.48577/jpl.YITKRQ, Science, JPL Open Repository
The large fluctuations in traffic during the COVID-19 pandemic provide an unparalleled opportunity to assess emission control efficacy. Here we develop a machine-learning (ML) model, based on the large volume of real-time observational data, to predict surface-level NO2, O3, and... |
