Results 51 to 60 of about 7,825 (236)

On the robustness of ENSO teleconnections [PDF]

Climate Dynamics, 2007
Using observations covering the last 128 years we show that apparent changes in El Nino-Southern Oscillation (ENSO) teleconnections can be explained by chance and stem from sampling variability. This result is backed by experiments in which an atmosphere model is driven by 123 years of observed sea surface temperature.
Sterl, Andreas, van Oldenborgh, Geert Jan, Hazeleger, Wilco, Burgers, Gerrit   +3 more
openaire   +1 more source

Shifting Patterns of Precipitation Extremes in the Southeast Atlantic Basin—Brazil: From Observed Trends to Future Projections

International Journal of Climatology, EarlyView.
Observed trends and EC‐Earth3 climate model projections demonstrate expressive changes in the Southeast Atlantic Hydrographic Basin, Brazil. Significant increases in rainfall intensity and dry spell duration in the present climate are followed by projected amplification of extreme precipitation under future warming, particularly under the SSP5‐8.5 ...
Pedro Lucas Oliveira‐Santos, Wanderson Luiz‐Silva, Daniela Carneiro Rodrigues, Fabricio Polifke, Antonio Carlos Oscar‐Júnior   +4 more
wiley   +1 more source

Tropical Teleconnections

Eos, 2017
A recent article in Reviews of Geophysics explored how regional climate and weather is interconnected across space and time.
openaire   +1 more source

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

Quarterly 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, David Corell, Juan J. Miró, María José Estrela   +3 more
wiley   +1 more source

Variability and Changes of the Growing Season Length and Frost Days Number in Russian sub-Arctic

Geography, Environment, Sustainability, 2019
Observational data from the Russian sub-Arctic stations are used to investigate long-term variability of the growing season length (GSL) and the number of frost days (FD) in 1949-2013.
I. I. Zveryaev, A. V. Arkhipkin
doaj   +1 more source

Empirical Orthogonal Teleconnections

Journal of Climate, 2000
Abstract A new variant is proposed for calculating functions empirically and orthogonally from a given space–time dataset. The method is rooted in multiple linear regression and yields solutions that are orthogonal in one direction, either space or time. In normal setup, one searches for that point in space, the base point (predictor), which, by linear
H. M. van den Dool, S. Saha, Å Johansson   +2 more
openaire   +1 more source

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

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

Consequences of agricultural total factor productivity growth for the sustainability of global farming: accounting for direct and indirect land use effects

Environmental Research Letters, 2019
Most of the growth in agricultural output in the last thirty years comes from increases in the efficiency with which both land and non-land inputs are used.
Nelson Villoria
doaj   +1 more source

Land Use and Wildfire: A Review of Local Interactions and Teleconnections

Land, 2015
Fire is a naturally occurring process of most terrestrial ecosystems as well as a tool for changing land use. Since the beginning of history humans have used fire as a mechanism for creating areas suitable for agriculture and settlement.
Van Butsic, Maggi Kelly, Max A. Moritz
doaj   +1 more source