Results 91 to 100 of about 13,243 (282)

Combined Use of Multiple Cloud‐Free Snow Cover Products in China and Its High‐Mountain Region: Implications From Snow Cover Identification to Snow Phenology Detection

open access: yesWater Resources Research
Accurate snow phenology detection, including snow cover days (SCD), snow start date (SSD), and snow end date (SED), is increasingly important for understanding mountain hydrology such as snow heterogeneity and snowmelt seasonality.
Longhui Zhang   +3 more
doaj   +1 more source

Reliably flattened radar backscatter for wet snow mapping from wide-swath sensors

open access: yes, 2013
Retrieval of wet snow extent with high temporal resolution over large areas that include topography requires use of wide swath SAR and radiometric terrain correction to enable backscatter comparisons across different orbital tracks. We report on springtime wet snow mapping using a time series of Envisat ASAR wide swath (WS) images covering the Swiss ...
Small, David   +3 more
openaire   +1 more source

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

open access: yesGeological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source

Independent leaf and root responses to autumn freezing in perennial herbs: Insights from cutting and transplant manipulations

open access: yesGrassland Research, EarlyView.
In this study, we compared two sampling approaches to assess autumn freezing resistance. Our goal was to determine whether the commonly employed cutting method, which disrupts root‐tissue connectivity, provides a valid measure of true freezing resistance.
Zhengjie Yan   +6 more
wiley   +1 more source

Temperature independent snow production [PDF]

open access: yes, 2017
Both the reliability of natural snow and the number of potential snow production days with traditional snowmaking equipment are decreasing due to a warmer climate. This is especially the case at lower altitudes. To maintain conditions suitable for winter
Trædal, Stian
core  

Extreme Climate Events in Morocco: Historical Analysis and Future Projections Based on CMIP6 Simulations

open access: yesInternational Journal of Climatology, EarlyView.
Historical observations and bias‐corrected CMIP6 projections reveal intensifying warm extremes, declining cold events and increasingly irregular precipitation patterns across Morocco. Future warming, particularly under SSP5‐8.5, produces an almost linear amplification of heat, aridity and hydrological stress, leading to longer droughts and more intense
Oualid Hakam   +4 more
wiley   +1 more source

Reliability estimation of industrial building structures

open access: yesИнженерно-строительный журнал, 2018
The article is devoted to solving the problem of the reliability of industrial building structures: crane and roof beams, columns, redundant building systems.
Sergii Pichugin
doaj   +1 more source

Dynamic snow density for snow water equivalent retrieval

open access: yes, 2020
Snow water equivalent is the amount of water that would form if a pack of snow would melt in place. Snow water equivalent is an important variable in describing global seasonal snow cover.
Venäläinen, Pinja
core  

Degradation of Seasonally Frozen Ground in the Three–River Source Region and Its Correlation Impact Within Precipitation–Runoff Process

open access: yesInternational Journal of Climatology, EarlyView.
This study reveals how climate change alters the water cycle in the Three Rivers Source region by degrading its important ‘solid groundwater’ (seasonally frozen ground). We found that runoff response varies by watershed and the role of permafrost decreases sharply, making water supply more dependent on rainfall and becoming increasingly vulnerable ...
Chenchen Ren   +6 more
wiley   +1 more source

On the reliability of steel frames exposed to snow load. Considering the Effect of Epistemic Uncertainty

open access: yes, 2014
This paper examines the reliability level of the Eurocode’s partial factor design (PFD) method for steel frames subjected to snow load. This is motivated by the frequent damage and collapse of structures under heavy snowfall [1, 2 ...
Rózsás, Árpád   +1 more
core  

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