China ; Climatic variability ; Foehn ; Global change ; Monsoon ; Seasonal variation ; Spatial variation ; Temperature
The objectives of this study are to determine the existence of any temperature variability trend(s) for the period 1951 through 1996, and to map temperature variability for China on a seasonal basis to depict the geographical patterns of thermal
This study aims to identify the geographical patterns of seasonal rainfall in China, examine the temporal variability in each precipitation region for various seasons and to investigate the relationships between seasonal rainfall patterns
with atmospheric teleconnections. Rainfall variability in China for the period from 1951 to 1999 was investigated with monthly rainfall data for 160 meteorological stations. It was discovered that the Polar-Eurasia (POL) and Arctic Oscillation (AO) index were
Active-layer monitoring in Northeast Russia : spatial, seasonal, and interannual variability
Active layer ; Asian part of Russia ; Chukotka ; Cold area ; Interannual variability ; Northern Russia ; Permafrost ; Russian Far East ; Seasonalvariability ; Spatial variation ; Thawing
Straw coverage alleviates seasonalvariability of the topsoil microbial biomass and activity
Agricultural practice ; Agropedology ; China ; Cultivated land ; Experiment plot ; Maize ; Micro-organism ; Mulching ; North-Eastern China ; Seasonalvariability ; Soil properties ; Soil temperature
Seasonalvariability of microbial biomass carbon (MBC) and basal respiration (BR) in surface soil was compared between conventional straw removal (SR) and straw coverage (SC) in a maize field experiment, Northeast China. The straw coverage treatment
variability of MBC and BR. These results demonstrate that straw coverage contributes to stabilizing soil microbial characteristics in season.
significantly increased microbial energy, carbon and nutrient sources (soil C and N contents) and improved soil physical environment (moisture and porosity), and thus stimulated MBC and BR across the growth season of maize, as compared to the straw removal
treatment. MBC and BR showed similar seasonal trends in soil temperature, with maximum values in summer. In both study years, the straw coverage treatment reduced seasonal variation of soil temperature, therefore it significantly moderated seasonal
Daily air temperature variability associated with climatic variability at Colombus, Ohio
The purpose is to determine how the frequency of daily extremes of temperature are related to the seasonal mean temperature, its interannual variability and longer term variations among decades. The warmest winters and summers at Columbus occur
Applied climatology ; Climatic variability ; Forecast ; Global change ; Interannual variability ; Model ; Renewable energy ; Seasonalvariability ; Vulnerability
. Consequently, the urgent need to forecast energy supply and demand has fuelled an interest in climate variability and climate forecasting at the seasonal and inter-annual scales.
The vulnerability of the renewable energy industry to climate variability and change has become patently obvious with severe weather (droughts, heat waves, harsh winters) creating energy crises in various parts of the globe in recent years
, and substrate characteristics. Time-averaged seasonal data were used to investigate spatial patterns in both physical and ecological variables on the delta and to identify possible geomorphic controls on such patterns.
To track delta changes over the seasonal to interannual time scale, inorganic and organic sedimentation rates were monitored biweekly and time averaged to obtain seasonal estimates that could be related to seasonal vegetation patterns, topography
Ch onnosc na tle sezonowych zmian srodowiska przyrodniczego Capacity of absorbing tourists in terms of seasonal changes in the natural environment
The degradation of the environment depends upon the scale of tourism, and its intensity is affected by the seasonalvariableness in tourist arrivals. In order to prevent it, indispensable is a suitable control of the tourist frequency by means
Analyse des variations saisonnières de la mortalité en Alaska en 1962-1976. Le rôle du climat et des types de temps apparaît variable selon les causes de décès et les ethnies. (HP).
Active-layer spatial and temporal variability at European Russian Circum-Active-Layer-Monitoring (CALM) sites
Active layer ; Arctic Region ; Cold area ; Model ; Permafrost ; Seasonalvariability ; Spatial variation ; Thawing
This paper analyses data from those European Russian CALM sites, primarily with regard to the interannual and spatial variability of the active layer. The effects of organic-layer thickness on thaw depth are shown to change during the warm season.
Thermal seasonality of the high mountain belts of the Pyrenees in Special issue on the Spanish Pyrenees.
Presentation of altitudinal gradients of thermal variables and seasonal means as regression equations which allows extrapolation of such variables to a range of altitudes. The lowest critical isotherm, O C for the period December-March, lies
series of the boundary positions exhibited very little longer (seasonal) scale variability, but somewhat larger smaller (daily) scale variability.
In this study, an intertidal bar and trough system on the beach of Noordwijk was monitored over a 15-month period in order to examine the daily to seasonal sequential cross-shore behaviour and to establish which conditions force or interrupt
A model study on seasonal spatial-temporal variability of the lagrangian residual circulations in the Bohai Sea
Model ; Monsoon ; Numerical model ; Ocean circulation ; Pacific Region ; Seasonal variation ; Tide ; Wind
The results showed that the tide-induced Lagrangian Residual Circulations, LRC, of the harmonic constituent M2 bears an identical pattern in 4 seasons in the Bohai Sea : the surface one is weak with random directions; however, there exist
significantly to the whole LRC in the Bohai Sea. Unlike the identical structure of the tide-induced LRC, the wind diven LRC varies seasonally under the prevailing monsoon.
Warm-season soil moisture deficits in the Southern United States
Atmospheric dynamics ; Correlation ; Drought ; Evapotranspiration ; Interannual variability ; Precipitation ; Soil moisture ; Southern United States ; Teleconnection ; Twentieth Century ; United States of America ; Water deficit
The interannual variability in warm-season soil-moisture deficits were examined for the Southern United States from 1895-2005. Moisture deficit values are computed using the Thornthwaite/Mather water budget technique. Five soil-moisture deficit
regions were identified, each has a distinct pattern and magnitude of deficit. No long-term trends were evident but considerable interannual variability is observed. The role of atmospheric indices on affecting deficits, precipitation, and potential
evapotranspiration was explored. In particular, the Bermuda High and PNA indices show the strongest correlations with soil-moisture deficits during the warm season.
Seasonalvariability of runoff and soil loss on forest road backslopes under simulated rainfall
Deforestation ; Mass movement ; Mediterranean area ; Plant canopy ; Rainfall simulation ; Rill wash ; Road ; Seasonalvariability ; Slope ; Soil erosion ; Spain ; Water erosion
and vegetated road backslopes during summer and winter in order to study seasonal differences. Preserving the vegetation cover over 20% is recommended for keeping soil loss rates under low levels, especially during winter.
Long-term variability in the number of days with precipitation in Kraków in relation to circulation patterns
Atmospheric circulation ; Cracow ; Interannual variability ; Nineteenth Century ; Poland ; Precipitation ; Seasonalvariability ; Time series ; Twentieth Century
This paper analyses long-term variability in the number of days with precipitation in Kraków in relation to changes in atmospheric circulation. This paper provides a certain contribution to the reconstruction of the climate in the first half