نتایج جستجو برای: moisture

تعداد نتایج: 39613  

2012
Wade T. Crow Aaron A. Berg Michael H. Cosh Alexander Loew Binayak P. Mohanty Rocco Panciera Patricia de Rosnay Dongryeol Ryu Jeffrey P. Walker

[1] The contrast between the point-scale nature of current ground-based soil moisture instrumentation and the ground resolution (typically >10 km) of satellites used to retrieve soil moisture poses a significant challenge for the validation of data products from current and upcoming soil moisture satellite missions. Given typical levels of observed spatial variability in soil moisture fields, t...

2006
PAUL A. O’GORMAN TAPIO SCHNEIDER

The transport of a condensing passive scalar is studied as a prototype model for the kinematics of moisture transport on isentropic surfaces. Condensation occurs whenever the scalar concentration exceeds a specified local saturation value. Since condensation rates are strongly nonlinear functions of moisture content, the mean moisture flux is generally not diffusive. To relate the mean moisture...

Journal: :International journal of biometeorology 2003
A P Dimitrakopoulos A M Bemmerzouk

In order to provide a relatively simple means of predicting live herbaceous plant moisture content from a readily available meteorological index with an accuracy adequate for fire hazard assessment, the moisture content fluctuations of certain species were correlated with the values of a seasonal drought index based on soil moisture deficiency. The simple linear regression models provided the b...

Journal: :Remote Sensing 2017
Chenjie Xing Nengcheng Chen Xiang Zhang Jianya Gong

Surface soil moisture is an important environment variable that is dominant in a variety of research and application areas. Acquiring spatiotemporal continuous soil moisture observations is therefore of great importance. Weather conditions can contaminate optical remote sensing observations on soil moisture, and the absence of remote sensors causes gaps in regional soil moisture observation tim...

2008
Enrique R. Vivoni Mekonnen Gebremichael Christopher J. Watts Rajat Bindlish Thomas J. Jackson

Comparisons to ground-based surface soil moisture estimates are necessary to evaluate the capability of remote sensors to determine soil moisture and its spatiotemporal variability. Soil moisture can be especially variable in regions of complex terrain which exhibit large variations in vegetation, soil properties and hydrologic conditions. The objective of this study is to evaluate the spatiote...

Journal: :Experimental gerontology 2013
Kensuke Kinoshita Kazuya Hattori Yoshio Ota Takao Kanai Miyuki Shimizu Hiroyuki Kobayashi Yasuharu Tokuda

PURPOSE Dry axilla can sometimes be found among dehydrated older patients. In this study, we measured the axillary moisture and assessed it as possible marker for dehydration. METHODS Twenty-nine older patients admitted with acute medical conditions participated in this study. Dehydration was diagnosed by the calculated serum osmolality of greater than 295 mOsm/L. The moisture of axilla was m...

2013
Xudong Chen Wanshan Huang Jikai Zhou

The aim of this study is to evaluate the moisture effect on the strength of concrete specimens that has completely cured. This study is also aimed to develop relations that can be used to determine the properties of concrete with different moisture contents that are normally experienced in outside conditions. Numerous compressions and split tensile tests are performed. In order to better unders...

2008
Matthew Hutchins Barbara Reynolds

In this study, the effects of a low-intensity prescribed bum were assessed on soil microarthropods by examining Collembola, Oribatid, Mesostigmata, and Pro stigmata populations. Sampling was done for three consecutive years, including one year pre-bum. Mean microarthropod populations of all groups fluctuated over the three years, but further analysis indicated significant differences by date wi...

2005
John E. Kutzbach John W. Williams Stephen J. Vavrus Gaylord Nelson

[1] Simulations from eight climate models and two greenhouse gas emission scenarios are used to investigate changes in the hydrologic budget of the Great Lakes region of North America and the links to large-scale hemispheric/ global changes. The ensemble average simulations indicate that increased net moisture (increased P-E) for the Great Lakes area is associated with a general increase in pol...

2016
Xiaojing Li Xin Wang Qian Zhao Yueyong Zhang Qixing Zhou

The electrical conductivity (EC) of soil is generally measured after soil extraction, so this method cannot represent the in situ EC of soil (e.g., EC of soils with different moisture contents) and therefore lacks comparability in some cases. Using a resistance measurement apparatus converted from a configuration of soil microbial fuel cell, the in situ soil EC was evaluated according to the Oh...

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