Results 91 to 100 of about 388,640 (338)

Investigation and analysis of climate change factors in Caspian Zone forests for last fifty years [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2008
Iran is located in the North Temperate Zone from 25 to 40 degrees latitude and 44 to 63 degrees longitude, with a total area of approximately 1,650,000 Km2. A 50% of total lands area is covered with high mountain ranges.
Mostafa Jafari
doaj  

Review of the state of the art and future prospects of the ground-based GNSS meteorology in Europe

open access: yes, 2016
. Global navigation satellite systems (GNSSs) have revolutionised positioning, navigation, and timing, becoming a common part of our everyday life. Aside from these well-known civilian and commercial applications, GNSS is now an established atmospheric ...
G. Guerova   +10 more
semanticscholar   +1 more source

Toward a macroevolutionary understanding of live‐leaf flammability in plant species of fire‐prone forests

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The flammability of live leaves in canopies varies considerably among plant species. Identifying macroevolutionary processes that shape variation in leaf flammability contributes to an understanding of the phylogenetic underpinnings of wildfire dynamics.
Brad R. Murray   +3 more
wiley   +1 more source

Characterizing Aircraft Exhaust Emissions and Impact Factors at Tianjin Binhai International Airport via Open-Path Fourier-Transform Infrared Spectrometer

open access: yesToxics
The growth of the civil aviation industry has raised concerns about the impact of airport emissions on human health and the environment. The aim of this study was to quantify the emissions of sulfur dioxide (SO2), nitrogen oxides (NOX), and carbon ...
Jingbo Zhao   +7 more
doaj   +1 more source

In commemoration of Alfred Wegener (1880-1930), 120 years after his birth and 70 years after his death

open access: yesMeteorologische Zeitschrift, 2000
Wegener made an astounding scientific contribution to many different subjects. His books became wellknown textbooks as well as a basis for weighty scientific discussions.
Cornelia Lüdecke
doaj   +1 more source

Color polymorphism in Anemone coronaria: Correlations with soil, climate, and flowering phenology

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Flower color polymorphism (FCP) is thought to be driven by multiple selection agents. Although widely associated with visual attraction of multiple pollinators, FCP is also often correlated with abiotic factors. We explored the links between abiotic conditions, flowering phenology, and FCP in the winter‐flowering geophyte Anemone ...
Tzlil Labin   +4 more
wiley   +1 more source

Short-term energy and meteorological impacts on Thanksgiving CO2 in Salt Lake City

open access: yesEnvironmental Research Communications
Long-term, high-frequency atmospheric CO _2 measurements at multiple sites in Salt Lake City (SLC), Utah, reveal that annual and monthly CO _2 variability aligns with a priori estimates of emissions from anthropogenic and biological sources.
Ju-Mee Ryoo   +2 more
doaj   +1 more source

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