نتایج جستجو برای: available moisture

تعداد نتایج: 606467  

2001

The CRSP will not be distributing this publication. Copies may be obtained by writing to the authors. A pilot study on the spatial and temporal soil moisture distribution in integrated crop-fishwetland and crop-wetland agroecosystems in Zomba-East, Malawi Daniel Jamu International Center for Living Aquatic Resources Management P.O. Box 229, Zomba, Malawi Integration of aquaculture into existing...

2003
Wenge Ni-Meister WENGE NI-MEISTER

This study reviews recent progress on soil moisture data assimilation. Data assimilation is a process of merging observations with a system dynamic model to provide an improved estimate of the states of the environment. The application of data assimilation in hydrology is relatively new, however, rapid progress has been made in the last decade or so with the available remotely sensed soil moist...

2011
A. B. Smith

Accurate prediction of soil moisture in a land surface model (LSM) is critical in improving land surface and atmosphere interactions in the atmospheric general circulation models used in numerical weather prediction and global climate models. Gravity is a relatively new source of remotely sensed data, available since the launch of the twin Gravity Recovery And Climate Experiment (GRACE) satelli...

2005
Bishara S. ATIYEH

Good hydration is the single most important external factor responsible for optimal wound healing. Unfortunately, available moisture retentive materials, products and devices require a certain expertise for application, are relatively expensive, may be associated with some serious complications and side effects, but most of all are impractical for application over large surface areas. We presen...

2005
Catherine Prigent Filipe Aires William B. Rossow Alan Robock

[1] This study presents a systematic and integrated analysis of the sensitivity of the available satellite observations to in situ soil moisture measurements. Although none of these satellites is optimized for land surface characterization, before the launches of the SMOSand HYDROS-dedicated missions they are the only potential sources of global soil moisture measurements. The satellite observa...

Journal: :Remote Sensing 2009
Tarendra Lakhankar Hosni Ghedira Marouane Temimi Manajit Sengupta Reza Khanbilvardi Reginald A. Blake

Satellite remote sensing observations have the potential for efficient and reliable mapping of spatial soil moisture distributions. However, soil moisture retrievals from microwave remote sensing techniques are typically complex due to inherent difficulty in characterizing the interactions among land surface parameters that contribute to the retrieval process. Therefore, adequate physical mathe...

2011
W. A. Dorigo W. Wagner

In situ measurements of soil moisture are invaluable for calibrating and validating land surface models and satellite-based soil moisture retrievals. In addition, longterm time series of in situ soil moisture measurements themselves can reveal trends in the water cycle related to climate or land cover change. Nevertheless, on a worldwide basis the number of meteorological networks and stations ...

2017
Binayak P. Mohanty Michael H. Cosh Venkat Lakshmi Carsten Montzka

This is an update to the special section “Remote Sensing for Vadose Zone Hydrology—A Synthesis from the Vantage Point” [Vadose Zone Journal 12(3)]. Satellites (e.g., Soil Moisture Active Passive [SMAP] and Soil Moisture and Ocean Salinity [SMOS]) using passive microwave techniques, in particular at L-band frequency, have shown good promise for global mapping of near-surface (0–5-cm) soil moistu...

2010
Annett Bartsch Daniel Sabel Carsten Pathe Scott Sinclair Theo Vischel Marcela Doubkova Wolfgang Wagner Geoff Pegram

A soil moisture monitoring service for the region of the Southern African Development Community (SADC) has been developed within the ESA TIGER Innovator project SHARE (www.ipf.tuwien.ac.at/radar/share). This service addresses one of today's most severe obstacles in water resource management which is the lack of availability of reliable soil moisture information on a dynamic basis. The spatial r...

2012
T. Prathima T. Yellamanda Reddy T. Murali Krishna K. Devaki P. Sudhakar N. V. Sarala A. Muneendra Babu K. V. Naga Madhuri

Groundnut (Arachis hypogaea L.) is an important oilseed crop grown in our country. Majority of crop is under rainfed conditions and as a post rainy season (Rabi) crop in Andhra Pradesh. Several models are available to predict the phenology, growth and yield of groundnut crop. However, no precise models are available to validate the effects of moisture stress on groundnut and their subsequent im...

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