Soil erosion by gullying causes severe soil degradation, which in turn leads to socio-economic and environmental damages tropical subtropical regions. To mitigate these negative effects guarantee sustainable management of natural resources, gullies must be prevented. Gully strategies start devising adequate assessment tools identification driving factors control measures. achieve this, machine ...

Mapping surface water distribution and its dynamics over various environments with robust methods is essential for managing resources supporting water-related policy design. Thresholding Single Water Index image (TSWI) threshold a common way of using index (WI) mapping it easy to use could obtain acceptable accuracies in many applications. As more WIs are available each has distinct merits, the...

Mapping Impervious Surface Area (ISA) at regional and global scales has attracted increasing interest. DMSP-OLS nighttime light (NTL) data have proven to be successful for mapping urban land in large areas. However, the well-documented issues of pixel blooming and saturation limit the ability of DMSP-OLS data to provide accurate urban information. In this paper, a multi-source composition index...

The goal of this paper is to evaluate the DisTrad sharpening technique for deriving land surface temperatures over urban areas. While the original DisTrad technique is based on the correlation between land surface temperature and NDVI, this study evaluates the performance of DisTrad over different land covers by analysing the correlation between land surface temperature and 15 different indices...

Flood maps are a crucial tool to support emergency management, disaster recovery and risk reduction planning. Traditional flood mapping methods are time-consuming, labor intensive, and costly. Our goal in this paper is to introduce a novel technique to aggregate knowledge and information to map coastal flooded areas. We proposed a Difference of Normalized Difference Water Indices (DNDWI) derive...

The spatial distribution of saturated areas is an important consideration in numerous applications, such as water resource planning or sighting of management practices. However, in humid well vegetated climates where runoff is produced by saturation excess processes on hydrologically active areas (HAA) the delineation of these areas can 5 be difficult and time consuming. Much of the non-point s...

In this paper, we used Landsat imagery for water body identification to create a novel 36-year surface area extent time series for lakes Azuei (Haiti) and Enriquillo (Dominican Republic) aimed at illuminating the dramatic temporal changes of these two lakes not just at yearly but at monthly or even sub-monthly scales. We used the Normalized Difference Water Index (NDWI) to extract water feature...

The flooded areas of corn cultivation were determined by means satellite images in order to know the economic losses due floods. As a case study, flood that occurred in 2016 affected 4 municipalities in State Tabasco, Mexico, was analyzed. methodology included use Landsat (L8), calculation spectral indices (water, vegetation and humidity), identification growing through supervised classificatio...

This study deals with the use of geographic information systems and remote sensing using spectral indicators to detect manifestations desertification on farmland in Makhmour District. The aimed investigate monitor agricultural lands area modern technologies monitoring evaluating phenomenon its effects for a period twenty-eight years by employing some such as Normalized Difference Vegetation Ind...