Show simple item record

dc.contributorGamal, Raniaen_US
dc.contributorMazahrih, Naemen_US
dc.contributorJomaa, Ihaben_US
dc.contributorMosaad, Alaaen_US
dc.contributorEL Meknassi, Ehssanen_US
dc.contributorZaitouna, Rimen_US
dc.contributorNangia, Vinayen_US
dc.creatorGovind, Ajiten_US
dc.identifier.citationAjit Govind, Rania Gamal, Naem Mazahrih, Ihab Jomaa, Alaa Mosaad, Ehssan EL Meknassi, Rim Zaitouna, Vinay Nangia. (1/11/2021). Field Data Analysis and Reporting Activity 7. 1: Analyze the Data of the Field Measurements.en_US
dc.description.abstractReliable spatiotemporal measurements of evapotranspiration (ETa) are important for water resources planning, management and monitoring, efficient irrigation scheduling, and development and monitoring of climate change mitigation scenarios. Due to complex land-plant-atmosphere interactions and natural variability in topography, soil moisture and vegetation type, obtaining accurate information on ET is often challenging, especially in agroecosystems where water is scarce or fluctuates seasonally. There are several conventional field methods used to determine ETa, including: 1) the Eddy covariance/energy balance method; 2) the Bowen-ratio/energy balance method; 3) Weighing lysimeters; 4) Soil-moisture depletion method; and 5) Large Aperture Scintillometer. These methods have their own specific advantages and limitations based on the theory behind and on the instrumentation requirements. However, what they have in common is, among others, the restricted sampling area and the complexity and extremely high costs when attempting to scale-up to larger areas. For large scales (e.g., watershed, sub-national, national and regional), ETa estimation is often established through satellite Remote Sensing (RS), due to progress that has been made in space science in recent years. There are several well-established RS-based algorithms for the determination of ETa, including SEBAL (Surface Energy Balance Algorithm for Land), METRIC (Mapping Evapotranspiration at high Resolution with Internalized Calibration), SEBS (Surface Energy Balance System), ETLook, ETMonitor, etc. Unfortunately, these methods also have their own specific advantages and limitations and are all suffering from a generally limited and scattered field testing. Virtually no testing is systematically carried out in the NENA Region. Therefore, the Water Scarcity Initiative (WSI) of FAO for the Near East and North Africa conceived and promoted the establishment of this ET-Network so that ETa field data could effectively be used to test and calibrate the remote sensing-based estimations.en_US
dc.subjectet networken_US
dc.titleField Data Analysis and Reporting Activity 7.1: Analyze the Data of the Field Measurementsen_US
dc.typeInternal Reporten_US
cg.creator.idGovind, Ajit: 0000-0002-0656-0004en_US
cg.creator.idNangia, Vinay: 0000-0001-5148-8614en_US
cg.subject.agrovocwater managementen_US
cg.subject.agrovocwater productivityen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerAgricultural Research Center Egypt - ARC Egypten_US
cg.contributor.centerNational Research Institute of Rural Engineering, Water and Forest - INRGREFen_US
cg.contributor.centerNational Agricultural Research Center Jordan - NARC Jordanen_US
cg.contributor.centerInstitute of Agronomy and Veterinary Hassan II - IAV HASSAN IIen_US
cg.contributor.centerLebanese Agricultural Research Institute - LARIen_US
cg.contributor.crpCGIAR Research Program on Water, Land and Ecosystems - WLEen_US
cg.contributor.funderSwedish International Development Cooperation Agency - SIDAen_US
cg.contributor.projectEstablishing and Operating a Regional Network for Field Measurement of Actual Crop Water Consumption (Evapotranspiration)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
dc.identifier.statusOpen accessen_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

DSpace software copyright © 2002-2016  DuraSpace
MELSpace content providers and partners accept no liability to any consequence resulting from use of the content or data made available in this repository. Users of this content assume full responsibility for compliance with all relevant national or international regulations and legislation.
Theme by 
Atmire NV