منابع مشابه
Comparison of five portable peak flow meters
OBJECTIVE To compare the measurements of spirometric peak expiratory flow (PEF) from five different PEF meters and to determine if their values are in agreement. Inaccurate equipment may result in incorrect diagnoses of asthma and inappropriate treatments. METHODS Sixty-eight healthy, sedentary and insufficiently active subjects, aged from 19 to 40 years, performed PEF measurements using Air ...
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Soil moisture state and variability control many hydrological and ecological processes as well as exchanges of energy and water between the land surface and the atmosphere. However, its state and variability are poorly understood at spatial scales larger than the fields (i.e. 1 km2) as well as the ability to extrapolate field scale to larger spatial scales. This study investigates soil moisture...
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The assessment of soil moisture content and surface roughness from remotely sensed data is of primary importance for improving agricultural techniques of conservation farming such as yield forecasts, scheduling irrigations, fertilization. SAR (Synthetic Aperture Radar) remotely sensed data may provide a powerful tool for indirectly retrieving these agricultural surface parameters over large are...
متن کاملASCAT Soil Moisture
This report presents a proposal for a new discrete global grid (DGG) that is recommended for implementation within IPF's software for processing scatterometer data and generating soil moisture products. The new grid is to improve the current adapted sinusoidal grid used within WARP4.0. An overview of the three main methods for implementing DGG'S; partitioning, tiling and subdivision, is present...
متن کاملSoil moisture retrieval
Soil moisture retrieval through a merging of multi-temporal L-band SAR data and hydrologic modelling F. Mattia, G. Satalino, V. R. N. Pauwels, and A. Loew Consiglio Nazionale delle Ricerche, Istituto di Studi sui Sistemi Intelligenti per l’Automazione (ISSIA), Bari, Italy Ghent University, Laboratory of Hydrology and Water Management (LHWM), Ghent, Belgium University of Munich (LMU), Department...
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ژورنال
عنوان ژورنال: HortTechnology
سال: 1993
ISSN: 1063-0198,1943-7714
DOI: 10.21273/horttech.3.2.195