Results 181 to 190 of about 3,012 (284)

Helioseismic evidence that the solar dynamo originates near the tachocline. [PDF]

Sci Rep
Mandal K, Kosovichev AG.
europepmc   +1 more source

Estimation of the Hurst Exponent for the Daily Sunspot Number

This paper deals with the estimation of the Hurst exponent of the International relative sunspot number data. We focus on three data sets of the yearly, monthly and daily sunspot numbers, and individually we consider the estimation of the Hurst exponent ...
Tanaka, Minoru
core  

The missing woodland story: Implications of 1700 years of stand‐scale change on ‘naturalness’ and managing remnant broadleaved woodlands

People and Nature, Volume 8, Issue 6, Page 1572-1587, June 2026.
Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard, J. Edward Schofield, Tim Mighall, Scott Timpany, Gill Plunkett   +4 more
wiley   +1 more source

Relationship between food quality and body size of common vole in different habitats

Pest Management Science, Volume 82, Issue 6, Page 5206-5215, June 2026.
The body size of the common vole in crop fields (alfalfa, rape, cereals) is larger than in less‐cultivated habitats (forests, clearings, set‐aside) and is not related to food quality. Abstract BACKGROUND There is a close relationship between habitat, food and demographic parameters of common vole populations.
Eva Jánová, Ladislav Čepelka, Josef Suchomel, Marta Heroldová   +3 more
wiley   +1 more source

Performance analysis of neural network architectures for time series forecasting: A comparative study of RNN, LSTM, GRU, and hybrid models. [PDF]

MethodsX
Yunita A, Pratama MI, Almuzakki MZ, Ramadhan H, Akhir EAP, Firdausiah Mansur AB, Basori AH.   +6 more
europepmc   +1 more source

First Results of a New Inversion Tool for Thermospheric Neutral Mass Density Computations During Severe Geomagnetic Storms

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract In Low Earth Orbit (LEO), atmospheric drag is the dominant source of trajectory prediction error below approximately 700 km altitude, primarily due to inaccuracies in thermospheric density models. This work presents a method for temporally deconvolving Energy Dissipation Rates (EDRs) to produce single‐satellite density estimates, which can be ...
S. Mutschler, M. Pilinski, E. Zesta, D. M. Oliveira, K. Delano, K. Garcia‐Sage, W. K. Tobiska   +6 more
wiley   +1 more source

Ordinal Spectrum: Mapping Ordinal Patterns into Frequency Domain. [PDF]

Entropy (Basel)
Chavez M, Martínez JH.
europepmc   +1 more source

Sunspot Number and Precipitation

Journal of the Meteorological Society of Japan. Ser. II, 1925
openaire   +1 more source

Gravity Wave Activity in the Stratosphere and Mesosphere During Hurricane Sam

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Multi‐instrument observations of gravity wave (GW) activity during Hurricane Sam (2021) were made using AIRS (Atmospheric Infrared Sounder) satellite data, ERA5 reanalysis, and TIMED/SABER temperature profiles. Two GW extraction methods, vertical high‐pass filtering and empirical mode decomposition, were applied to quantify wave‐induced ...
Ayden L. S. Gann, Erdal Yiğit
wiley   +1 more source

Spatiotemporal variations of precipitation and driving forces during wheat maturation season in Henan Province. [PDF]

Sci Rep
Zhang Z, Guo H, Qi Q, Luo X, Zhang W, Feng K, Wang F, Liu J.   +7 more
europepmc   +1 more source