Pertemuan 01 Definisi, Karakteristik, Contoh Aplikasi Sistem Informasi Geografi (SIG). Matakuliah: T0234 / Sistem Informasi Geografi Tahun: 2005 Versi: 01/revisi 1. Learning Outcomes. Pada akhir pertemuan ini, diharapkan mahasiswa akan mampu :
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Pertemuan 01Definisi, Karakteristik, Contoh Aplikasi Sistem Informasi Geografi (SIG)
Matakuliah: T0234 / Sistem Informasi Geografi
Versi: 01/revisi 1
Pada akhir pertemuan ini, diharapkan mahasiswa
akan mampu :
A computer system that can hold and use data describing places on the Earth’ surfaces.
A set of tools for collecting, storing, retrieving at will, transforming, and displaying spatial data from the real world for a particular set of purposes.
Sistem Informasi berbasis komputer dengan memakai data digital berujuk pada lokasi geografis di muka bumi.
A computer software that links geographic information (where things are) with descriptive information (what things are).
Lihat buku referensi. (Eddy Prahasta : “Konsep-konsep Dasar SIG”, hal.56-57, 2001, dsb.)
What is it?
Location Information: Where is it?
Age: 75 Yrs
Geographic Information Systems
Describing Our World
ESRI Canada :
GIS : A method to visualize, manipulate, analyze, and display spatial data
GIS is a technology that is used to view and analyze data from a geographic perspective. The technology is a piece of an organization's overall information system framework.
GIS links location to information (such as people to addresses, buildings to parcels, or streets within a network) and layers that information to give you a better understanding of how it all interrelates. You choose what layers to combine based on your purpose.
Within a few hours of the destruction of Space Shuttle Columbia, GIS accurately modeled the shuttle's debris location and distribution.
(see this image)
Three Views of a GIS (http://www.gis.com)
2. The Map View: A GIS is a set of intelligent maps and other views that show features and feature relationships on the earth's surface. Maps of the underlying geographic information can be constructed and used as "windows into the database" to support queries, analysis, and editing of the information. This is called geovisualization.
Three Views of a GIS (http://www.gis.com)
3. The Model View: A GIS is a set of information transformation tools that derive new geographic datasets from existing datasets. These geoprocessing functions take information from existing datasets, apply analytic functions, and write results into new derived datasets.
Peta, Grafik, Daftar Alamat, Ringkasan data statistik , dsb.
GIS contains many layers of information:
These are just a few of the kinds of layers a GIS can contain:
GIS software links the location data and the attribute data:
What provinces have more than 1.5 million people?
What provinces border Saskatchewan?
GIS software can answer questions about our world:
GIS can analyze data in many ways:
Peta, Grafik, Daftar Alamat, Ringkasan data statistik, dsb.
Land cover and temperature relationships are made clear when the data are seen at once using Geotechnology.
A proposed excavation, identified by address, is compared to pipelines in the area using Geotechnology.
Geotechnology is used in making crop management decisions to maximize yields and minimize fertilizer input.
Geotechnology can query a database and identify only those areas with the highest household income within a specified distance of a store.
Park planners use Geotechnology to determine if a new Visitor Centre can be seen from the peak.
Geotechnology identifies communities at risk of River Blindness and helps determine the impact of treatment.
With Geotechnology, an agent can show a map of a neighborhood and a picture or video of the actual properties.
Geotechnology can choose the fastest route to a hospital. The GIS can take into account traffic and other impediments.