Results 91 to 100 of about 63,059,936 (298)

Impact of Weak‐Constraint Four‐Dimensional Variational data assimilation on the prediction of a sudden stratospheric warming event in 2024

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The Weak‐Constraint Four‐Dimensional Variational (WC‐4DVAR) system markedly improved the analysis and forecasting of the 2024 sudden stratospheric warming (SSW) event. It reduced biases and enhanced 7–9 day predictions of temperature across the SSW life cycle, with the most pronounced gains for winds also during the critical onset period.
Shaoying Li   +5 more
wiley   +1 more source

5th Annual NOAA Hurricane Preparedness Summit Report [PDF]

open access: yes
NOAA’s Disaster Preparedness Program partnered with Coastal Response Research Center (CRRC) to facilitate webinars on two consecutive days focusing on NOAA’s hurricane preparedness and readiness for personnel, mission, infrastructure (PMI).
NOAA, CRRC
core  

Dynamics and thermodynamics of the fast and slow Madden–Julian Oscillation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The results of this study highlight the MJO as a complex phenomenon, the behavior of which is driven by an interplay of thermodynamic and dynamic processes. The MJO's distinct speeds are controlled by different mechanisms: slow MJOs propagate eastward primarily via horizontal moisture advection, fast MJOs by vertical moisture advection.
Víctor C. Mayta   +3 more
wiley   +1 more source

Coupled observation‐operator approximations in outer‐loop coupling data assimilation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We present a methodology for coupled variational data assimilation that allows the effect of coupled observation operators whilst maintaining separate minimisations across model components. This allows us to constrain the atmosphere, ocean, and sea‐ice components of our coupled model directly from satellite radiances. We illustrate the system in action
P. A. Browne   +5 more
wiley   +1 more source

Evaluation and assimilation of Arctic Weather Satellite data in the AROME‐Arctic forecast system

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The Arctic Weather Satellite (AWS), launched in August 2024, is a prototype for the future EPS–Sterna constellation of small satellites carrying an innovative microwave sounder. We present the first assessment of AWS in the regional AROME‐Arctic numerical weather prediction system, covering post‐launch calibration results and the impact of AWS ...
Stéphanie Guedj   +2 more
wiley   +1 more source

LA TEMPERATURA DE LA SUPERFICIE DEL MAR PERUANO A PARTIR DE LAS IMÁGENES AVHRR / NOAA (2000 - 2003)

open access: yesRevista de Investigación de Física, 2006
El objetivo de este trabajo es el análisis de la temperatura de la superficie del mar (TSM), estimado de los datos AVHRR / NOAA, cerca de la costa Peruana para su aplicación en la determinación de los frentes térmicos y en el estudio del Fenómeno El Niño.
Joel Rojas Acuña   +1 more
doaj   +1 more source

Inter-Comparing SNPP and NOAA-20 CrIS Toward Measurement Consistency and Climate Data Records

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
The cross-track infrared sounder (CrIS) is a Fourier transform spectrometer that provides hyperspectral soundings of the atmosphere over three wavelength ranges onboard on both Suomi National Polar-orbiting Partnership (SNPP) and NOAA-20 satellites. Quantifying the radiometric difference and creating a calibration link between SNPP and NOAA-20 CrIS are
Likun Wang 0001, Yong Chen 0011
openaire   +1 more source

Structural changes in the interannual variability of extreme autumn precipitation in eastern Spain and the weakening of synoptic forcing

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Total autumn precipitation in eastern Spain remains stable between 1950 and 2024, masking a substantial internal redistribution between ordinary and extreme rainfall. While torrential precipitation (Rp95) increases and ordinary precipitation (Ro) decreases, the extreme contribution index (Cext) shows a significant positive trend and a structural shift ...
Eduardo A. Agosta   +3 more
wiley   +1 more source

Pre-Launch Polarization Assessment of JPSS-3 and -4 VIIRS VNIR Bands and Comparison with Previous Builds

open access: yesRemote Sensing
The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument, deployed on multiple satellites including the Suomi National Polar-orbiting Partnership (S-NPP), National Oceanic and Atmospheric Administration 20 (NOAA-20), NOAA-21, Joint Polar ...
David Moyer   +3 more
doaj   +1 more source

Fishery Publication Index, 1980-85 and Technical Memorandum Index, 1972-85 [PDF]

open access: yes, 1987
The following series of fishery publications produced in calendar years 1980-85 by the Scientific Publications OffIce of the National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), are listed numerically and ...
Martin, Cynthia S.   +3 more
core  

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