Results 141 to 150 of about 45,474 (275)

A Climatology of Heatwaves Over Greece for the Period 1960–2022

open access: yesInternational Journal of Climatology, Volume 46, Issue 2, February 2026.
This research examines the spatiotemporal evolution of heatwaves in Greece from 1960 to 2022, utilising a long timeseries of homogenised high‐quality data with broad spatial coverage. It focuses on identifying heatwaves using verified definitions, introducing spatial and intensity classifications to understand their diverse regional variations ...
Panagiotis Ioannidis   +3 more
wiley   +1 more source

Characteristics of Moisture Transport in Rainstorms in Different Regions of Eastern China Under the Background of Northeast China Cold Vortex in Warm‐Season

open access: yesEarth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Revealing the characteristics of moisture transport in heavy rainfall events in eastern China under the Northeast China Cold Vortex (NCCV) background holds important scientific and practical value for improving precipitation prediction accuracy. This study uses reanalysis data, surface observations, and a Lagrangian trajectory model to compare
Hao Yang   +5 more
wiley   +1 more source

Investment-Based Underperformance Following Seasoned Equity Offerings [PDF]

open access: yes
Adding a return factor based on capital investment into standard, calendar-time factor regressions makes underperformance following seasoned equity offerings largely insignificant and reduces its magnitude by 37-46%.
Evgeny Lyandres, Le Sun, Lu Zhang
core  

Calendar market anomalies : Ημερολογιακές Ανωμαλίες Αγοράς

open access: yes, 2004
Η διπλωματική αυτή εργασία μελετά τις Ημερολογιακές Ανωμαλίες της Αγοράς (Calendar Market Anomalies). Πιο συγκεκριμένα οι ανωμαλίες της αγοράς είναι ένα φαινόμενο που εμφανίζεται στις χρηματιστηριακές αγορές και επηρεάζει την ομαλή λειτουργία τους. Ανωμαλία είναι ένα γεγονός που δεν μπορεί να ερμηνευτεί από την επικρατούσα θεωρία και συγκεκριμένα στην ...
openaire   +1 more source

The True Cost of Heat: Evaluating Heat‐Related Mortality Estimation Methods in Texas

open access: yesGeoHealth, Volume 10, Issue 2, February 2026.
Abstract Different ways of counting heat‐related deaths (HRD) can give you very different numbers. This study examines HRD in Texas using three different definitions: The Optimal Temperature Method (OTM) estimates mortality based on deviations from a community's optimal temperature, capturing the effects of both moderate and extreme heat exposure. This
Jesse R. J. Rutt, Andrew E. Dessler
wiley   +1 more source

Impact‐Based Drought Detection via Interpretable Machine Learning and Causal Discovery

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract The intensification of drought events due to climate change presents unprecedented risks and widespread socioenvironmental impacts. Traditional drought indices, which rely on hydrometeorological anomalies, often fall short in capturing the full extent of these impacts, as they primarily focus on isolated precursors (e.g., precipitation deficit
Paolo Bonetti   +6 more
wiley   +1 more source

DeepRec: Global Terrestrial Water Storage Reconstruction Since 1941 Using Spatiotemporal‐Aware Deep Learning Model

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Terrestrial water storage (TWS) plays an important role in describing the Earth system, as water availability is decisive for ecosystems and human development. Since 2002, the Gravity Recovery and Climate Experiment (GRACE) and its Follow‐On (GRACE‐FO) mission have measured TWS anomalies with unprecedented accuracy, enabling a leap in ...
Luis Q. Gentner   +5 more
wiley   +1 more source

Calendar anomalies at Istanbul Stock Exchange

open access: yes, 1993
Ankara : Department of Management and the Graduate School of Business Administration of Bilkent University, 1993. Thesis (Master's) -- Bilkent University, 1993. Includes bibliographical references leaves 36-38 A securities market in which market prices fully reflect all relevant information is called efficient.
openaire   +1 more source

Weak Physics‐Guided Multi‐Agent Learning for Surface to Subsurface Moisture Estimation Across Diverse Climate and Soil Conditions

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Estimating subsurface soil moisture remains challenging due to limited in situ observations and the complexity of soil water dynamics. Although surface soil moisture can be retrieved from satellites with high accuracy, deeper layers are not directly observable. Traditional physics‐based models that predict subsurface soil moisture require site‐
Abhilash Singh   +2 more
wiley   +1 more source

A Machine Learning-Based Dynamic SST Index for Long-Lead Malaria Prediction in the Peruvian Amazon. [PDF]

open access: yesGeohealth
Pan M   +7 more
europepmc   +1 more source

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