نتایج جستجو برای: atmospheric moisture

تعداد نتایج: 114665  

2004
R. Marsh A. Yool T. M. Lenton M. Y. Gulamali N. R. Edwards J. G. Shepherd M. Krznaric S. Newhouse S. J. Cox

The effect on Atlantic overturning of changes in zonal and meridional atmospheric moisture transports is investigated. Zonal transports are considered in terms of net moisture export from the Atlantic sector. Meridional transports are related to vigour of the global hydrological cycle. The equilibrium thermohaline circulation (THC) simulated with an efficient climate model is strongly dependent...

Journal: :Plant physiology 1943
L D Doneen J H Macgillivray

Moisture is one essential condition for seed germination, and poor germination is very costly to growers. There is, nevertheless, little experimental evidence concerning the effects of different percentages of available moisture (5) on germination; more study of the subject is essential. Since most vegetable seeds are planted at shallow depths, there may be rapid fluctuations of soil moisture a...

2009
Nadja Insel Christopher J. Poulsen Todd A. Ehlers

Mountain ranges are known to have a firstorder control on mid-latitude climate, but previous studies have shown that the Andes have little effect on the largescale circulation over South America. We use a limiteddomain general circulation model (RegCM3) to evaluate the effect of the Andes on regional-scale atmospheric dynamics and precipitation. We present experiments in which Andean heights ar...

2003
V. Zavorotny D. Masters A. Gasiewski R. Zamora

The results of GPS L-band (L1, = 19 cm) surface reflection measurements observed using multiple polarizations and receiving antenna gains are described. The measurements were performed using the 300-m tall ETL Boulder Atmospheric Observatory (BAO) tower during summer through fall of 2002. In this experiment the first seasonal measurements of bare soil moisture from a stationary location using b...

2005
Jeffrey P. Walker

Accurate latent and sensible heat flux prediction in response to land surface soil moisture at midlatitudes has been shown to be as important as sea surface temperature in making accurate precipitation prediction at mid-latitudes over land (Koster et al., 2000). Unfortunately, land surface models typically give a poor prediction of soil moisture and atmospheric feedback, with large differences ...

2005
Yongqiang

[ I ] The relations between monthly-seasonal soil moisture and precipitation variability are investigated by identifying the coupled patterns of the two hydrological fields using singular value decomposition (SVD). SVD is a technique of principal component analysis similar to empirical orthogonal knctions (EOF). However, it is applied to two variables simultaneously and i s capable of extractin...

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