Geographic Information Systems(GIS)

Nusail has provided GIS support on different software platforms. We understand the intricacies involved in surveying, planimetric mapping, and GIS development. More importantly, we have continually molded our entire operation around the idea of producing a spatially accurate GIS base map. We meet the minimum specifications for photogrammetric mapping and understand every aspect of GIS design, including software and hardware requirements, to ensure the delivery of a suitable GIS base map and a GIS- Friendly product

Nusail deploys web-based GIS for internal project management and for external customers. Our development goes beyond the simple deployment of "out of the box" software. We provide unique solutions, tailored to our customers' needs and desires. Our sites are robust and feature functionality not typically found in other web-based GIS sites. We develop sites for power users as well as the general public. To do this, we put careful consideration in the design and layout, and provide documentation through online help files

Products, either paper or digital include dimension details and 3D positional coordi-nates to the clients preferred horizontal and vertical datum including National Grid or WGS84 / UTM systems,

Geographic Information Systems can assist with the following:

Data Analysis
With GIS, two- and three-dimensional characteristics of the Earth's surface, subsurface, and
atmosphere can be modeled to relate climate events. For example, a GIS can quickly generate a map
with isopleth or contour lines that indicate differing amounts of rainfall. A two-dimensional
contour map created from the surface modeling of rainfall point measurements may be overlaid and
analyzed with any other map in a GIS covering the same area. This GIS derived map can then
provide additional information - such as the viability of water power potential as a renewable energy
source.

Topological Modeling
By analyzing topological relationships, spatial modelling can be performed between geometric
entities to determine such things as adjacency, containment, and proximity.

Geometric Networks
Geometric networks are linear networks of objects that can be used to represent interconnected
features, and to perform special spatial analysis on them. A geometric network is connected at
junction points, similar to graphs in mathematics. Just like graphs, networks can have weight and
flow, which can be used to represent road networks, public utility networks.

Hydrological Modeling
GIS hydrological models can provide a spatial element data that other hydrological models lack,
adding variables such as slope, aspect and watershed. Terrain analysis is fundamental to hydrology,
since water always flows downward. Slope and aspect can determine direction of surface runoff and
flow accumulation.

Cartographic Modeling
Cartographic modeling is a process where several thematic layers are produced, processed, and analyzed for simulation or optimization models.

Map Overlay
By overlaying vectors data can be extracted and used in either vector or raster data analysis. Rather than
combining the properties and features of both datasets, data extraction involves using a "clip" or "mask" to
extract the features of one data set that fall within the spatial extent of another dataset.

Geostatistics
Interpolation is the process by which a surface is created, usually a raster dataset, through the input of data
collected at a number of sample points. Digital elevation models, triangulated irregular networks, edge-
finding algorithms, Thiessen polygons, Fourier analysis, (weighted) moving averages, inverse distance
weighting, kriging, spline, and trend surface analysis are all mathematical methods to produce interpolative
data.