dc.contributor.author | Barasa, Bernard | |
dc.contributor.author | Wanyama, Joshua | |
dc.date.accessioned | 2022-03-04T08:50:04Z | |
dc.date.available | 2022-03-04T08:50:04Z | |
dc.date.issued | 2020-03-18 | |
dc.identifier.citation | Barasa, Bernard., Wanyama, Joshua (2020). Freshwater lake inundation monitoring using Sentinel-1 SAR imagery in Eastern Uganda.Taylor&Francis Online: Annals of GIS.https://doi.org/10.1080/19475683.2020.1743754. | en_US |
dc.identifier.uri | https://doi.org/10.1080/19475683.2020.1743754 | |
dc.identifier.uri | https://kyuspace.kyu.ac.ug/xmlui/handle/20.500.12504/781 | |
dc.description | 191-200 p. | en_US |
dc.description.abstract | In flood hazard assessment, little attention has been given to the seasonal observation of freshwater
inundation using Sentinel-1 Synthetic-Aperture Radar (SAR) images in the tropics. To assess these
spatial variations, this study examined the inundation magnitudes and reflectance of riparian flora in
the raining seasons (February-April and September-November) and dry-periods (May-August and
December-January). The inundation areas were determined using an object-oriented classification
algorithm, whilst the merits concerning the lake, riparian vegetation and shoreline were well-defined
using backscatter-coefficient values. Findings indicated that the SAR images are practical to monitor
inundation coverages and discern lake basin specific features such as highland areas, shoreline, water
and riparian-vegetation. Seasonally, inundated sizes were comparatively higher in February (902 sq.
km) and October (700 sq.km). Backscatter values of inundated parts varied from −16 dB to −19 dB,
whereas those of riparian vegetation were higher in the months of May and August. This study hence
displays a clear-cut correlation between riparian-vegetation, hydrology and climate variables. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Taylor&Francis Online: Annals of GIS | en_US |
dc.relation.ispartofseries | Vol.26;Issue 2 | |
dc.subject | Lake inundation | en_US |
dc.subject | Sentinel-1 | en_US |
dc.subject | SAR images | en_US |
dc.subject | Shoreline | en_US |
dc.subject | Backscatter-coefficient | en_US |
dc.title | Freshwater lake inundation monitoring using Sentinel-1 SAR imagery in Eastern Uganda | en_US |
dc.type | Article | en_US |