Results 41 to 50 of about 1,187,144 (257)

Streamflow variability over the 1881–2011 period in northern Québec: comparison of hydrological reconstructions based on tree rings and geopotential height field reanalysis

, 2016
Over the last decades, different methods have been used by hydrologists to extend observed hydro-climatic time series, based on other data sources, such as tree rings or sedimentological datasets.
P. Brigode, F. Brissette, A. Nicault, L. Perreault, A. Kuentz, T. Mathevet, J. Gailhard   +6 more
semanticscholar   +1 more source

Geoid Studies in Two Test Areas in Greece Using Different Geopotential Models towards the Estimation of a Reference Geopotential Value

Remote Sensing, 2023
In the present study, we first examine the contribution of different, satellite-only or combined, global geopotential models in geoid computation employing the remove–compute–restore approach. For this reason, two test areas of about 100 km2 each, one in
Vassilios N. Grigoriadis, Vassilios D. Andritsanos, Dimitrios A. Natsiopoulos, Georgios S. Vergos, Ilias N. Tziavos   +4 more
doaj   +1 more source

Predictability of US tornado outbreak seasons using ENSO and northern hemisphere geopotential height variability

, 2016
The predictability of dangerous atmospheric phenomena such as tornado outbreaks has generally been limited to a week or less. However, recent work has demonstrated the importance of the Rossby wavetrain phasing over the United States in establishing ...
Kent Sparrow, A. Mercer
semanticscholar   +1 more source

Evaluation of aerosol loading and its relationship with geopotential height in Nigeria’s Guinea Coast

Bulletin of the National Research Centre
Climate variability and atmospheric changes significantly affect weather patterns and human activities. Aerosols impact the Earth's climate by influencing cloud formation, scattering radiation, and cooling the planet. However, aerosols, like black carbon,
Onyinyechi Caroline Ibe, Okechukwu Kelechi Nwofor, Ugochukwu Kingsley Okoro   +2 more
doaj   +1 more source

Dry–Hot Compound Events Driving the 2024 Pantanal Wildfires

International Journal of Climatology, EarlyView.
Extreme wildfires in the Pantanal in 2024 were driven by a cascade of heatwaves, rainfall deficits and the absence of the annual flood pulse. These conditions dried soils and rivers, enhanced fuel accumulation and enabled early and intense fire outbreaks.
Liz B. C. Belém, Ronaldo Albuquerque, Leonardo F. Peres, Filippe L. M. Santos, Julia A. Rodrigues, Lucas S. Menezes, Patrícia S. Silva, Ricardo M. Trigo, Carlos C. DaCamara, Ana Russo, João Geirinhas, Geraldo A. Damasceno Junior, Fabio O. Roque, Ana M. B. Nunes, Renata Libonati   +14 more
wiley   +1 more source

Spatiotemporal Changes in Precipitation Concentration in the Atlantic‐European Region

International Journal of Climatology, EarlyView.
This study analyses changes in precipitation concentration using ERA5 and E‐OBS datasets. Gini index as a measure of precipitation concentration revealed a gradual expansion of areas with increasing unevenness in precipitation distribution across the Atlantic‐European region since 1961.
Petr Dobrovolný, David Tichopád, Rudolf Brázdil, Jan Řehoř, Jiří Mikšovský   +4 more
wiley   +1 more source

Revealing skill of the MiKlip decadal prediction system by three-dimensional probabilistic evaluation

Meteorologische Zeitschrift, 2016
Decadal climate predictions and their verification are part of ongoing research. This article studies different methods applied to decadal hindcasts of three-dimensional atmospheric variables to evaluate the MiKlip (Mittelfristige Klimaprognosen ...
Sophie Stolzenberger, Rita Glowienka-Hense, Thomas Spangehl, Marc Schröder, Alex Mazurkiewicz, Andreas Hense   +5 more
doaj   +1 more source

An Ensemble Mean and Evaluation of Third Generation Global Climate Reanalysis Models

Atmosphere, 2018
We have produced a global ensemble mean of the four third-generation climate reanalysis models for the years 1981–2010. The reanalysis system models used in this study are National Centers for Environmental Prediction (NCEP) Climate Forecast System
Jeffrey D. Auger, Sean D. Birkel, Kirk A. Maasch, Paul A. Mayewski, Keah C. Schuenemann   +4 more
doaj   +1 more source

Large Proportions of Surface Ozone and Premature Mortality Due to a Stratospheric Intrusion Event in North China

International Journal of Climatology, EarlyView.
This study, by examining a typical stratospheric intrusion event that occurred in North China from 30 to 31 July 2021, found that the event led to a sharp increase in near‐surface ozone concentrations by 23 ppbv within 36 h, accounting for 40% of the total observed ozone levels, with localised peaks exceeding 30 ppbv.
Yinghan Sun, Zhicong Yin, Yijia Zhang
wiley   +1 more source

Seasonal Characteristics of Mesoscale Convective Systems Over the Philippines

International Journal of Climatology, EarlyView.
This study examines how mesoscale convective systems (MCSs) over the Philippines are most frequent during boreal summer, while those in winter are longer‐lived and more intense due to cold surges and enhanced easterly moisture transport. Intraseasonal oscillations, such as the Madden‐Julian Oscillation (MJO) and the Boreal Summer Intraseasonal ...
Cathrene Lagare, Junshi Ito, Takeshi Yamazaki, Giuseppe Torri   +3 more
wiley   +1 more source