Browsing by Author "Dalezios, N. R."
Now showing items 1-20 of 34
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Agreement assessment of NOAA/AVHRR NDVI with landsat TM NDVI for mapping burned forested areas
(2002)Meteorological satellites are appropriate for operational applications related to early warning, monitoring and damage assessment of forest fires. Environmental or resources satellites, with better spatial resolution than ... -
Assessment of cotton phenological stages using agroclimatic indices: An innovative approach
(2009)Reliable long time-series of phenological observations are not widely available, since recording requires special expertise. In Greece, phenological stations network exists only in fruits trees and for the past 17 years. ... -
Assessment of NDVI and agrometeorological indices for major crops in central Greece
(2002)Major agricultural crops such as vineyards and apples can be monitored by comparing normalized difference vegetation index (NDVI) with several agrometeorological indices. The agrometeorological indices used in this study ... -
Assessment of remotely sensed drought features in vulnerable agriculture
(2012)The growing number and effectiveness of Earth observation satellite systems, along with the increasing reliability of remote sensing methodologies and techniques, present a wide range of new capabilities in monitoring and ... -
Basin-wide actual evapotranspiration estimation using NOAA/AVHRR satellite data
(2005)The present study elaborates on the estimation of actual evapotranspiration at watershed scale using mathematical models and remote sensing techniques. A water balance model was updated and used to simulate runoff from a ... -
Climate change implications on flood response of a mountainous watershed
(2004)The modification of the flood response due to future climate change is presented for the Illecillewaet watershed of British Columbia, Canada. The Canadian Centre for Climate Modeling Analysis General Circulation Model ... -
Climatic impacts on the runoff generation processes in British Columbia, Canada
(2002)The potential impact of future climate change on runoff generation processes in two southern British Columbia catchments was explored using the Canadian Centre for Climate Modelling Analysis General Circulation Model ... -
Cotton yield estimation based on NOAA/AVHRR produced NDVI
(2001)The high temporal resolution of the NOAA/AVHRR satellite data can provide an efficient and consistent way for biomass and yield monitoring and assessment. The reflected radiation provides an indication of the type and ... -
DAILY PRECIPITATION VARIABILITY IN SEMIARID AGRICULTURAL REGIONS IN MACEDONIA, GREECE
(1995)The spatio-temporal variability of daily precipitation series was investigated in a semiarid region of central Macedonia in northern Greece. Ten years of daily rainfall records for seven stations in the region constituted ... -
Early cotton production assessment in Greece based on a combination of the drought Vegetation Condition Index (VCI) and the Bhalme and Mooley Drought Index (BMDI)
(2004)A new methodological approach is presented for quantifying the meteorological effects on cotton production during the growing season in Greece. The proposed Bhalme and Mooley Vegetation Condition Index (BMVCI) is based on ... -
Early cotton yield assessment by the use of the NOAA/AVHRR derived Vegetation Condition Index (VCI) in Greece
(2004)Satellite data can significantly contribute to agricultural monitoring. The reflected radiation, as recorded by satellite sensors, provides an indication of the type, density and condition of canopy. A widely used index ... -
FEATURES OF FROST-AFFECTED AREAS FROM DIGITAL METEOSAT IR IMAGES
(1995)Frost is a natural hazard, which may cause significant damage to agriculture depending also on the phenological stage of the affected crops. In this paper, several features of the frost-affected areas are examined by using ... -
Flood producing mechanisms identification in southern British Columbia, Canada
(2000)The causes of peak flows in two climatically different mountainous-forested basins of British Columbia have been identified. The U.B.C. watershed model was used to identify the causes of peak flows, since this model ... -
Geoinformatic Intelligence Methodologies for Drought Spatiotemporal Variability in Greece
(2012)One of the most important hazards in terms of cost, frequency of occurrence and impact on humans is drought. Drought indices are estimations of precipitation shortage and water supply deficit. Satellite drought indices are ... -
GIS-based weather radar siting procedure in mountainous terrain
(2010)This paper describes a weather radar siting procedure for a mountainous region in Greece using GIS. The established radar siting objectives consist of the detection and tracking of storms (rainstorms, hailstorms, and ... -
Hydroclimatic variability of regional droughts in Greece using the palmer moisture anomaly index
(2002)The hydroclimatic variability of droughts at a regional scale in the semiarid climate of Greece was examined in this paper. The moisture anomaly Z-index of the Palmer Drought Severity Index (PDSI) was employed for a ... -
Phenomenological features of precipitation series in agricultural regions
(1993)A region in central Macedonia of northern Greece is used for the analysis, where the availability of water is mandatory for the agricultural activities of the region. Seven stations are employed with a 10-year record of ... -
Potential climate change impacts on flood producing mechanisms in southern British Columbia, Canada using the CGCMA1 simulation results
(2002)The potential impacts of the future climate change on the causes of flood flows were investigated for two mountainous watersheds located in two different climatic regions of British Columbia. The Canadian Centre for Climate ... -
Rainfall-frequency mapping for Greece
(2001)For the design of hydrotechnical projects in ungauged watersheds, the flood flow is estimated by various methods, which demand the estimation of rainfall of particular critical duration and return period. For medium-sized ...