What is GIS and some project examples

 

Geographic Information System (GIS) is a system of hardware, software, and digital data layers in the form of geospatial database; that aids in making decisions by relating various data to a geographic location that is unlike a conventional information system that relates data in databases by common attributes.  Data for a GIS may come from many sources such as conventional databases, digitized or electron maps/CAD files, remotely sensed or acquired imagery data such as those from aerial or satellite platforms, and other field or site collected data associated with a particular study site or Area of Interest.  GIS benefits any decision making in that:

  • Data to support decision making is within a click away

  • Spatially presented data is a more intuitive method to understand complex analyses

  • Data changes easily made when the need arises.

  • Spatial patterns recognizable while analyses simplified

The biggest advantage that a GIS offers is the ability to relate attribute data with spatial locations.  Choosing from a variety of software, JAYA can design a spatial database specialized for the needs of the user. Whether this requires creating a stream layer from elevation models, or multiple layers digitized from aerial photos, created from scratch, or adjusted from baseline data,  JAYA is equipped for these services. Once the database is designed and developed, JAYA will made the database available via the Internet for users and their clients to browse and review.  Any update can be integrated into the database and quickly uploaded for clients' review.

 

          

 

Data stored in a GIS can be used to provide a variety of decision aiding products, visualization/presentation, and analytical products.  Our capabilities include:

  • ESRI ArcGIS Server implementation for various spatial data project requirements

  • Electronic or hardcopy map of selected data layers (can be queried for particular requirement).

  • Visualizations of the location of specific group of items such as vegetation types.

  • Temporal visualization showing the change over time of data such as census data.

  • Real-time display of the location of emergency vehicles or equipment.

  • Visualization of the analysis to determine the possible locations for a particular building such as a retail store.

  • Providing roject status by facilitating access and review of various data layers in a GIS over a web-application and accessible via the Internet

         

 

 

The following is a list of projects that JAYA has completed or currently undertakes: . 

  • Environmental/Natural Resource Management

  • Ecosystem Assessment, Watershed Restoration, and Wetland Assessment (Hydrogeomorphic Approach)

  • GIS Database Design and Implementation for City Planning

  • GIS Database for Addressing Emergency Situation

  • Formerly Used Defense Sites (FUDS) Investigation, Remedial Investigation/Feasibility Study Data Management

  • Unexploded Ordnance (UXO) Field Data Analysis and Statistical Modelling

  • Site Characterization and Map Feature Update

  • Field Data Collection and Integration

  • US Army National Guard Training Site Map Update (Site Visits, Data Collection, GIS)

Sample Reference Projects

USDA Forest Service - Ozark-St. Francis NF, Southern Region

Provided two key hydrologic GIS data layers for the Ozark-St. Francis National Forest. The first layer delineated and annotated flood plains and flat ridge tops derived from DEM using slope, aspect and slope position analysis. The second, vector high-order stream data layers that were created from digitized maps and hydrological model using 10 and 30 meter Digital Elevation Model (DEM) data.

USDA Forest Service - Southern Region  and DOI National Park Services

JAYA developed visitors' map  by converting digital data archived in CAD drawings into ESRI GIS environment. JAYA processed the CAD drawings such that each level of drawings is stored in GIS data layer with the appropriate attribute information. The layers are then constructed into a map environment from which a film product is developed.

Sverdrup Technologies

Developed a customized software application for an environmental management GIS. The package was developed in the ESRI ArcView environment. The application allows environmental managers and engineers to view and analyze data collected by field environmental engineers and technicians. Site visualizations include analysis of chemical residue, site, ground lithology and monitoring well construction. Report and charts compliant with agency requirements are generated.

COLSA Corporation, Advanced Research Center, US Army Space and Missile Defense Command

Developed a custom software application to convert map data to a GIS format which is subsequently translated to a format compatible with the ModSAF Compact Terrain Data Base (CTDB), a battlefield simulation environment.

USDA Forest Service, Southern Region

Developed data layers for the Automated Lands Project (ALP) geographic information system by digitizing in ARC/INFO the interior parcel boundaries within each ranger district from engineering mylars.

US Fish & Wildlife Services, Southeast Region and DOI National Park Service

Developed data layers for the Realty management geographic information system by digitizing in ARC/INFO the refuge boundaries for wildlife refuges in the Southeast United States from engineering mylars.

Updated the National Wetland Inventory Data for Escambia county by performing image interpretation using Digital Orthophoto data as well as site visits to collect field data  used as reference.