Results 101 to 110 of about 8,681 (227)
MERRA-2: File Specification [PDF]
The second Modern-Era Retrospective analysis for Research and Applications (MERRA-2) is a NASA atmospheric reanalysis that begins in 1980. It replaces the original MERRA reanalysis (Rienecker et al., 2011) using an upgraded version of the Goddard Earth ...
Bosilovich, M. G. +2 more
core +1 more source
Is the subtropical jet shifting poleward? [PDF]
, 2019 The tropics are expanding poleward at about 0.5∘ per decade in observations. This poleward expansion of the circulation is consistently reported using Hadley cell edge metrics and lower-atmospheric tropical edge metrics.
Kelleher, Michael E. +3 more
core +2 more sources
Drivers of Mid‐Latitude Quiet‐Time Longitude Variations in Ionospheric Density
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract The aim of this study is to provide an observational benchmark of mid‐latitude quiet‐time variability in winds, O/N2, and TEC across longitude and local time to provide a foundation for future model–data comparison studies. The quiet‐time ionospheric structure is not uniform but rather exhibits pronounced longitudinal and local‐time ...
K. R. Greer +3 more
wiley +1 more source
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.Abstract During land model development, simulated carbon dynamics are often benchmarked against observational data sets to evaluate model performance. Functional relationship benchmarks are the relationship between a driving variable (e.g., temperature) and a response variable (e.g., ecosystem respiration) and are a promising tool for assessing model ...
Jeralyn Poe +28 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Aerosols are ubiquitous microscopic particles in the atmosphere, and their diurnal variation characteristics reflect short‐term atmospheric changes that are crucial for climate monitoring and prediction. However, satellite, ground‐based, and reanalysis systems cannot simultaneously provide observational authenticity together with full temporal–
Yujia Cao +7 more
wiley +1 more source
Journal of Field OrnithologyConservation status assessments for Cassin’s Sparrow ( Peucaea cassinii ) show considerable variability across the species’ North American range. In this study, we combine data from NASA’s Modern-Era Reanalysis for Research and Applications, Version 2 ...
John L. Schnase +3 more
doaj +1 more source
Spatio-temporal patterns and trends of the air pollution integrating MERRA-2 and in situ air quality data over Egypt (2013-2021). [PDF]
Air Qual Atmos Health, 2023 Masoud AA.
europepmc +1 more source
Chemistry Simulations Using MERRA-2 Reanalysis with the GMI CTM and Replay in Support of the Atmospheric Composition Community [PDF]
Simulations using reanalyzed meteorological conditions have been long used to understand causes of atmospheric composition change over the recent past.
Oman, Luke D., Strahan, Susan E.
core +1 more source
Observed Increase in Tropical Vegetation Droughts Over the Past Three Decades
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Tropical terrestrial vegetation is critical to the global carbon cycle but faces escalating drought threats. Traditional assessments using fixed climate thresholds often ignore actual physiological responses and non‐moisture disturbances.
Shuai Cheng +7 more
wiley +1 more source
Full Coverage Hourly PM2.5 Concentrations' Estimation Using Himawari-8 and MERRA-2 AODs in China. [PDF]
Int J Environ Res Public Health, 2023 Liu Z, Xiao Q, Li R.
europepmc +1 more source