Results 131 to 140 of about 4,101,946 (282)

A new scale‐selective measure of curvature for meteorological fields

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We introduce a novel diagnostic called curvature using radial variation (CURV) that quantifies the local cyclonic or anticyclonic curvature of mean‐sea‐level pressure or geopotential height gridded fields over selected scales. A depiction of how CURV values relate to differing cyclonic curvature is shown in the figure.
Nigel Roberts, Timothy Hewson, Anca Brookshaw, Matthieu Chevallier   +3 more
wiley   +1 more source

Zinc in Soil–Plant–Human Systems: A Synthesis of Its Fate, Essential Roles, and Health Implications

Scientifica
Zinc (Zn) is an essential micronutrient that plays a pivotal role in the soil–plant–human continuum, influencing soil health, crop productivity, and human nutrition.
Ajit Kumar Mandal, Jitendra Kumar, Joy Kumar Dey, Ashok Chhetri, Subrata Das, Vijay Kumar, Amulya Kumar Mohanty, Ashim Debnath, Shatabhisa Sarkar, Annika Jahan Aonti, Md. Parvez Kabir, Shahin Imran, Akbar Hossain   +12 more
doaj   +1 more source

Subseasonal forecasts of the MJO and convectively coupled equatorial waves in ACCESS‐S2 and GraphCast: A multi‐year analysis

Quarterly Journal of the Royal Meteorological Society, EarlyView.
ACCESS‐S2 performs better in predicting longer time‐scale and slower moving waves (MJO and equatorial Rossby waves), while GraphCast performs better in predicting shorter and faster moving waves (Kelvin and mixed Rossby–gravity waves). However, both models systematically underestimate precipitation amplitude across all wave types, especially over the ...
Beata Latos, Hanh Nguyen, Matthew C. Wheeler, Chen Li, Catherine de Burgh‐Day, Muhammad E. Hassim, Sandeep Sahany, Aurel Moise   +7 more
wiley   +1 more source

The Comet Program and the U.S. DoD: A Model Partnership in Meteorology Education [PDF]

, 2004
American Meteorological Society (AMS) 13th Symposium on EducationThe Cooperative Program for Operational Meteorology Education and Training resides within the University Corporation for Atmospheric Research (UCAR) to serve as a training and education ...
Nuss, Wendell, Schreiber-Abshire, Wendy, Miles, Carl B., Wesley, Douglas, Sigafoose, Melanie, Bol, Alan J., Willingham, Erin C.W.   +6 more
core  

Low‐order system for eddy growth in the storm track

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Reanalysis data for the North Atlantic storm track are used to construct a low‐order model that optimally fits the observed interaction between the mean flow and baroclinic eddies. The resulting model is a certain type of predator–prey model. It explains various properties of the storm track, including why eddies grow linearly with the Eady growth rate,
Maarten H. P. Ambaum, Thomas H. A. Frame
wiley   +1 more source

Exploration and Practice of Excellent Marine Meteorology Talents Training [PDF]

Proceedings of the 2017 2nd International Seminar on Education Innovation and Economic Management (SEIEM 2017), 2018
Guangya Zhang, Lingli Fan
openaire   +1 more source

Object‐based deep learning for probabilistic convective‐core nowcasting from satellite data

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Convective cores detected from Meteosat infrared imagery are represented as compact physical objects to generate probabilistic nowcasts up to 6 h ahead. A spatio‐temporal transformer models interactions among evolving core populations and produces gridded probability forecasts across the western Sahel.
Mendrika Rakotomanga, Douglas J. Parker, Nadhir Ben Rached, Seonaid R. Anderson, Cornelia Klein, Steven C. Wells   +5 more
wiley   +1 more source

Synoptic and large‐scale drivers of extreme precipitation events in the Himalayas

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Months associated with maximum frequency of extreme precipitation events (EPEs). 6102 extreme precipitation days (i.e., exceeding 99th percentile for daily precipitation) occurred across the Karakoram, Western Himalayas (WH), Central Himalayas (CH) and Eastern Himalayas (EH) during 1979 to 2023.
Priya Bharati, Pranab Deb, Kieran M. R. Hunt   +2 more
wiley   +1 more source

Review of Aeronautical Meteorology

, 2000
The modules in this Review of Aeronautical Meteorology course are being offered by The COMET® Program to serve the continuing education needs of international aeronautical forecasters.

core  

Error in ERA5 2‐m temperature identified using GraphCast

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We identify a recurrent error in ERA5 2‐m temperature over the Ethiopian Highlands that occurs predominantly at 0600 UTC on ≈7%$$ \approx 7\% $$ of dates. The artefact is caused by the 2D optimal‐interpolation scheme assimilating temporally displaced surface reports (e.g., 0900 UTC) into the 0600 UTC analysis.
Hannah M. Christensen, Jack Barker, Bobby Antonio, Massimo Bonavita, Mohamed Dahoui, Patricia de Rosnay   +5 more
wiley   +1 more source