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Spatial identification by satellite imagery of the crop–fallow rotation cycle in northern Laos

Yamamoto, Yukiyo; Oberthür, Thomas; Lefroy, Rod - In: Environment, Development and Sustainability 11 (2009) 3, pp. 639-654

Persistent link: https://www.econbiz.de/10010997216

Estimation of Sediment Yield and Areas of Soil Erosion and Deposition for Watershed Prioritization using GIS and Remote Sensing

Jain, Manoj; Das, Debjyoti - In: Water Resources Management 24 (2010) 10, pp. 2091-2112

capacity factor used in TLSD approach by linking it with normalized difference vegetation index (NDVI) derived from satellite …

Persistent link: https://www.econbiz.de/10010997422

The use of NDVI and its Derivatives for Monitoring Lake Victoria’s Water Level and Drought Conditions

Omute, Paul; Corner, Rob; Awange, Joseph - In: Water Resources Management 26 (2012) 6, pp. 1591-1613

Normalized Difference Vegetation Index (NDVI), which is a measure of vegetation vigour, and lake water levels respond … variably to precipitation and its deficiency. For a given lake catchment, NDVI may have the ability to depict localized natural … variations of a given lake’s surface. This study evaluates the potential of using NDVI and its associated derivatives (VCI …

Persistent link: https://www.econbiz.de/10010997451

Integrated Remote Sensing and Geographic Information System Based RUSLE Modelling for Estimation of Soil Loss in Western Himalaya, India

Kumar, Amit; Devi, Mamta; Deshmukh, Benidhar - In: Water Resources Management 28 (2014) 10, pp. 3307-3317

Soil loss due to water erosion was estimated in Kangra region of western Himalaya using revised universal soil loss equation modelling (RUSLE) in conjunction with Remote Sensing (RS) and Geographic Information Systems (GIS). The various parameters such as rainfall erosivity (R), soil erodibility...

Persistent link: https://www.econbiz.de/10010997574

Changes in Summer Irrigated Crop Area and Water Use in Southeastern Turkey from 1993 to 2002: Implications for Current and Future Water Resources

Ozdogan, Mutlu; Woodcock, Curtis; Salvucci, Guido; … - In: Water Resources Management 20 (2006) 3, pp. 467-488

thresholding of Landsat NDVI images from the peak summer period reveals that the total area of summer irrigated crops has increased …

Persistent link: https://www.econbiz.de/10010997974

The Potential Link Between El Nino and Water Hyacinth Blooms in Winam Gulf of Lake Victoria, East Africa: Evidence from Satellite Imagery

Kiage, Lawrence; Obuoyo, Joyce - In: Water Resources Management 25 (2011) 14, pp. 3931-3945

Spectroradiometer (MODIS) satellite are used to monitor areal extent and density of the aquatic plants. We related the NDVI derived from … (NDVI) analyzed from data acquired by the multispectral Aqua/Terra sensors aboard the Moderate Resolution Imaging … MODIS imagery to data on El Niño South Oscillation (ENSO) events that were obtained from NOAA and rainfall data from the …

Persistent link: https://www.econbiz.de/10010998166

Evaluating the Impact of Drought Using Remote Sensing in a Mediterranean, Semi-arid Region

Vicente-Serrano, Sergio - In: Natural Hazards 40 (2007) 1, pp. 173-208

This paper analyses monthly differences in drought impact on vegetation activity in a semi-arid region in the north-east of the Iberian Peninsula between 1987 and 2000. The study determines spatial differences in the effects of drought on the natural vegetation and agricultural crops by means of...

Persistent link: https://www.econbiz.de/10010846921

A Model of West African Millet Prices in Rural Markets

Brown, Molly; Higgins, Nathaniel; Hintermann, Beat - Agricultural and Applied Economics Association - AAEA - 2013

markets. Another novel aspect of our analysis is our use of the Normalized Difference Vegetation Index (NDVI) to detect and …

Persistent link: https://www.econbiz.de/10010880979

Studying of the Environmental Changes in Marsh Area Using Landsat Satellite Images

Saleh, Salah A. H. - In: Journal of Asian Scientific Research 2 (2012) 8, pp. 427-435

The marshes of Mesopotamia at the southern part of Iraq represent a unique component of our global heritage. During the last decades the Iraqi marshes subjected to many changes, these changes have great impact on marshes environmental and ecosystem. The goal of this research is to detect the...

Persistent link: https://www.econbiz.de/10010883658

Green Lights: Quantifying the economic impacts of drought

Fisker, Peter - Institut for Fødevare- og Ressourceøkonomi, … - 2014

This study investigates the effect of drought on economic activity globally using remote sensing data. In particular, predicted variation in greenness is correlated with changes in the density of artificial light observed at night on a grid of 0.25 degree latitude-longitude pixels. I define...

Persistent link: https://www.econbiz.de/10010941648