scholarly journals Delineation of small reservoirs using radar imagery in a semi-arid environment: A case study in the upper east region of Ghana

2009 ◽  
Vol 34 (4-5) ◽  
pp. 309-315 ◽  
Author(s):  
F.O. Annor ◽  
N. van de Giesen ◽  
J. Liebe ◽  
P. van de Zaag ◽  
A. Tilmant ◽  
...  
Keyword(s):  
Arid Environment ◽  
Small Reservoirs ◽  
East Region ◽  
Radar Imagery ◽  
Upper East Region ◽  
Semi Arid

CASE STUDY: Evaluation of Different Cooling Systems in Lactating Heat-Stressed Dairy Cows in a Semi-Arid Environment

2007 ◽  
Vol 23 (5) ◽  
pp. 546-555 ◽  
Author(s):  
R. Burgos ◽  
L.J. Odens ◽  
R.J. Collier ◽  
L.H. Baumgard ◽  
M.J. VanBaale
Keyword(s):  
Dairy Cows ◽  
Arid Environment ◽  
Cooling Systems ◽  
Study Evaluation ◽  
Semi Arid

scholarly journals Landscape Changes and Fragmentation Analysis in a Guinea Savannah Ecosystem: Case study of Talensi and Nabdam Districts of the Upper East region, Ghana

2016 ◽  
Vol 8 (1) ◽  
pp. 41 ◽  
Author(s):  
Steve Ampofo ◽  
Isaac Sackey ◽  
Boateng Ampadu
Keyword(s):  
Human Interaction ◽  
Northern Ghana ◽  
Landcover Change ◽  
East Region ◽  
Upper East Region ◽  
Spatio Temporal ◽  
Categorical Maps ◽  
Landsat Satellite

Landcover change is an observed natural change dynamics at both the local and regional levels. However, its scales are exacerbated by human interaction with its natural environment. The study examines these spatio-temporal changes in landcover and the level to which the change is accompanied by fragmentation of the identifiable cover types in the Talensi and Nabdam districts in Northern Ghana. The research uses digital classification of Landsat satellite imagery for 1999 and 2007 to produce the cover types which results in good accuracy levels of 66.39% and 63.03% respectively. Fragmentation analysis of the landscape was computed using FRAGSTATS® software for categorical maps obtained from the classified landcover maps for the two years. All cover types increased marginally. However, Bare areas decreased by as much as 17.17% and that of water decreased from 3% to 1%. The changing landscape involving conversions within and among various cover types is accompanied by fragmentation in all classes but more pronounced in the Bare class. The Bare class type which has more patches corresponds to the class with increased cover size and rather strangely decreases in the mean path size.

scholarly journals Soil erosion assessment in a semi-arid environment: a case study from the Argana Corridor, Morocco

2020 ◽  
Vol 79 (18) ◽  
Author(s):  
Latifa Bou-imajjane ◽  
Mhamed Alaeddine Belfoul ◽  
Racha Elkadiri ◽  
Martin Stokes
Keyword(s):  
Soil Erosion ◽  
Arid Environment ◽  
Semi Arid ◽  
Soil Erosion Assessment

scholarly journals Large-Scale Water Productivity Assessments with MODIS Images in a Changing Semi-Arid Environment: A Brazilian Case Study

2013 ◽  
Vol 5 (11) ◽  
pp. 5783-5804 ◽  
Author(s):  
Antônio de C. Teixeira ◽  
Morris Scherer-Warren ◽  
Fernando Hernandez ◽  
Ricardo Andrade ◽  
Janice Leivas
Keyword(s):  
Large Scale ◽  
Water Productivity ◽  
Arid Environment ◽  
Semi Arid ◽  
Brazilian Case

scholarly journals A groundwater potential zone mapping approach for semi-arid environments using remote sensing (RS), geographic information system (GIS), and analytical hierarchical process (AHP) techniques: a case study of Buffalo catchment, Eastern Cape, South Africa

2020 ◽  
Vol 13 (22) ◽  
Author(s):  
Solomon Temidayo Owolabi ◽  
Kakaba Madi ◽  
Ahmed Mulakazi Kalumba ◽  
Israel Ropo Orimoloye
Keyword(s):  
South Africa ◽  
Arid Environment ◽  
Groundwater Potential ◽  
Groundwater Potential Zone ◽  
Potential Zone ◽  
Eastern Cape ◽  
Analytical Hierarchical Process ◽  
Mapping Approach ◽  
Semi Arid

AbstractTheme unsuitability is noted to have inhibited the accuracy of groundwater potential zones (GWPZs) mapping approach, especially in a semi-arid environment where surface water supply is inadequate. This work, therefore presents a geoscience approach for mapping high-precision GWPZs peculiar to the semi-arid area, using Buffalo catchment, Eastern Cape, South Africa, as a case study. Maps of surficial-lithology, lineament-density, drainage-density, rainfall-distribution, normalized-difference-vegetation-index, topographic-wetness-index, land use/land cover, and land-surface-temperature were produced. These were overlaid based on analytical hierarchical process weightage prioritization at a constituency ratio of 0.087. The model categorizes GWPZs into the good (187 km2), moderate (338 km2), fair (406 km2), poor (185 km2), and very poor (121 km2) zones. The model validation using borehole yield through on the coefficient of determination (R2 = 0.901) and correlation (R = 0.949) indicates a significant replication of ground situation (p value < 0.001). The analysis corroboration shows that the groundwater is mainly hosted by a fractured aquifer where the GWPZs is either good (9.3 l/s) or moderate (5.5 l/s). The overall result indicates that the model approach is reliable and can be adopted for a reliable characterization of GWPZs in any semi-arid/arid environment.

Geochemical processes controlling groundwater quality under semi arid environment: A case study in central Morocco

2017 ◽  
Vol 609 ◽  
pp. 1140-1151 ◽  
Author(s):  
Morad Karroum ◽  
Mohammed Elgettafi ◽  
Abdenabi Elmandour ◽  
Cornelia Wilske ◽  
Mahjoub Himi ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Arid Environment ◽  
Geochemical Processes ◽  
Semi Arid
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