Articles with "upper level" as a keyword



An Ode to Intern Year.

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Published in 2018 at "JAMA pediatrics"

DOI: 10.1001/jamapediatrics.2017.3020

Abstract: One year ago, I was terrified. I was in the neonatal intensive care unit with 3 co-interns for a brief orientation on the day before we started the first rotation of our residency. I remember… read more here.

Keywords: team; intern year; year; ode intern ... See more keywords

A Climatological Analysis of Upper‐Level Velocity Potential Using Global Weather Reanalysis, 1959–2020

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Published in 2024 at "International Journal of Climatology"

DOI: 10.1002/joc.8659

Abstract: Upper‐level (200 hPa) velocity potential (VP200) is useful in identifying areas of rising or sinking atmospheric motions on varying temporal scales (e.g., weekly, seasonal, interannual) especially in the global tropics. These areas are associated with enhancement… read more here.

Keywords: global weather; upper level; level; velocity potential ... See more keywords

Objective classification of extratropical cyclogenesis

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Published in 2017 at "Quarterly Journal of the Royal Meteorological Society"

DOI: 10.1002/qj.2989

Abstract: Extratropical cyclones experience vastly different genesis conditions at the first point of their tracks. A novel method is introduced to characterize this variability and classify genesis events by computing 30 diagnostic variables that describe the… read more here.

Keywords: level forcing; genesis events; cyclogenesis; level ... See more keywords

Impact of Mid- and Upper-Level Dry Air on Tropical Cyclone Genesis and Intensification: A Modeling Study of Durian (2001)

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Published in 2018 at "Advances in Atmospheric Sciences"

DOI: 10.1007/s00376-018-8039-0

Abstract: The impact of mid- and upper-level dry air, represented by low relative humidity (RH) values, on the genesis of tropical cyclone (TC) Durian (2001) in the South China Sea was investigated by a series of… read more here.

Keywords: mid upper; durian 2001; dry air; air ... See more keywords

Perspective of explosive cyclones with three shapes of upper-level potential vorticity over the northern Atlantic Ocean

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Published in 2024 at "Climate Dynamics"

DOI: 10.1007/s00382-024-07482-x

Abstract: The characteristics of explosive cyclones (ECs) with three shapes of upper-level potential vorticity (PV), namely “streamer”, “hook”, and “treble clef” shapes were jointly examined by composite and diagnostic approaches, by using the fifth-generation global atmospheric… read more here.

Keywords: upper level; level; three shapes; shapes upper ... See more keywords

Bilevel programming problems: a view through set-valued optimization

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Published in 2025 at "Annals of Operations Research"

DOI: 10.1007/s10479-025-06589-6

Abstract: Bilevel programming is one of the very active areas of research with many real-life applications in economics and engineering. Bilevel problems are hierarchical problems consisting of lower-level and upper-level problems, respectively. The leader or the… read more here.

Keywords: set valued; level; upper level; lower level ... See more keywords

A Comparative Study on the Effect of Upstream Trough on Intensity Changes of Two Types of Tropical Cyclones during Extratropical Transition

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Published in 2019 at "Asia-Pacific Journal of Atmospheric Sciences"

DOI: 10.1007/s13143-019-00136-7

Abstract: Based on the China Meteorological Administration (CMA) tropical cyclone (TC) database and the reanalysis data from the European Centre for Medium-Range Weather Forecasts (ECMWF), the post-transition intensifying tropical cyclones (ITC) and weakening tropical cyclones (WTC)… read more here.

Keywords: extratropical transition; vorticity; upper level; tropical cyclones ... See more keywords

Utilizing Take-Home Examinations in Upper-Level Analytical Lecture Courses in the Wake of the COVID-19 Pandemic

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Published in 2020 at "Journal of Chemical Education"

DOI: 10.1021/acs.jchemed.0c00768

Abstract: Take-home examinations were utilized during the COVID-19 pandemic for upper-level analytical chemistry lecture courses The questions were often scenarios which required the students to determine the best type of instrument to use and how to… read more here.

Keywords: level analytical; take home; lecture courses; upper level ... See more keywords

Attribution of the Increased Intensity of Upper‐Level Hadley Circulation Under Climate Change

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Published in 2025 at "Geophysical Research Letters"

DOI: 10.1029/2025gl115984

Abstract: The upper‐level Hadley circulation is critical to the energy transport from tropical toward mid‐to‐high latitude regions. In this study, an index denoting the intensity of upper‐level Hadley circulation in Northern Hemisphere (Southern Hemisphere) is defined… read more here.

Keywords: level hadley; upper level; hadley circulation;

Factors determining tropical upper-level cloud radiative effect in the radiative-convective equilibrium framework

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-62587-x

Abstract: Investigation of the major factors determining tropical upper-level cloud radiative effect (TUCRE) is crucial for understanding cloud feedback mechanisms. We examined the TUCRE inferred from the outputs of historical runs and AMIP runs from CMIP6… read more here.

Keywords: upper level; factors determining; level; tropical upper ... See more keywords
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Three-Level Longitudinal Mediation with Nested Units: How does an Upper-Level Predictor Influence a Lower-Level Outcome via an Upper-Level Mediator Over Time?

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Published in 2018 at "Multivariate Behavioral Research"

DOI: 10.1080/00273171.2018.1471975

Abstract: ABSTRACT In the study, extending from the cross-lagged panel model (CLPM) and the 2-2-1 cross-sectional multilevel mediation model, we proposed a three-level longitudinal mediation model to evaluate the causal process among variables at different levels… read more here.

Keywords: mediation; level; model; three level ... See more keywords