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GeoBase (geospatial data)

GeoBase (geospatial data) is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand GeoBase (geospatial data) rather than just read about it. In short: GeoBase is a federal, provincial and territorial government initiative that is overseen by the Canadian Council on Geomatics (CCOG). It is undertaken to ensure the provision of, and access to, a common, up-to-date and maintained base of quality geospatial data for Canada.

Key takeaways

  • GeoBase (geospatial data) belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect GeoBase (geospatial data) to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of GeoBase (geospatial data) from memory before moving on to harder problems.

Reference excerpt

GeoBase is a federal, provincial and territorial government initiative that is overseen by the Canadian Council on Geomatics (CCOG). It is undertaken to ensure the provision of, and access to, a common, up-to-date and maintained base of quality geospatial data for Canada. Through the GeoBase, users with an interest in geomatics have access to quality geospatial information at no cost and with unrestricted use.

GeoBase Principles These are the fundamental principles that GeoBase operates under and that direct the decision making process on a regular basis:

Source, regional and—where practical—national data all share the same geometry. GeoBase provides national data coverages. Source data is collected once and used by many. Source data is collected and maintained closest to the source. The cost of maintenance and update is shared among the levels of government. All GeoBase data is available at no charge. GeoBase data has no restrictions on its subsequent use. GeoBase data uses a common license.

Data Layers Provincial, territorial, and municipal stakeholders agreed to work together to ensure the availability of high-quality geospatial data covering the entire Canadian landmass. These data is collected once and maintained closest to the source and provided free through the GeoBase with no restrictions for users. GeoBase has partnerships with federal, provincial, territorial, municipal government, and private companies, with the dual goals of eliminating data duplication and optimizing collectively available resources. GeoBase partners are involved in different levels of the data production process such as project funding, sharing of source data or by working on data collection and data processing. All GeoBase data must conform to the following technical characteristics:

GeoBase data elements carry a unique and singular ID. GeoBase data comply with a standard data model and meet or exceed a minimum standard for accuracy, resolution, and currency. Metadata is defined and standardized at the entity level. GeoBase data and all associated tools adhere to international standards. GeoBase data is seamless across Canada. GeoBase data is consistent across layers.

Geographical Names Data Base The purpose of this layer is to store names and their attributes that have been approved by the Geographical Names Board of Canada (GNBC) and to make these authoritative records available for government and public use. These records include the names of over 70,000 populated places and administrative areas; 300,000 water features; and 115,000 terrain features (e.g., mountains and peninsulas).

Partners Provincial and Territorial Agencies

Federal Agencies Canada Post; Canadian Hydrographic Service; Elections Canada; Earth Sciences; Geological Survey of Canada; Indian and Northern Affairs Canada; Library and Archives Canada; Natural Resources Canada; Department of National Defence; Parks Canada; Statistics Canada; Translation Bureau

National Road Network Since 2003, GeoBase has provided a consistent, accurate, and current NRN. The first edition of the NRN depicted the centerline of over 1.1 million kilometers of non-restricted use roads in Canada. In the fall of 2007, the second edition of the NRN was launched. NRN 2.0 includes place names, street names, and address ranges between intersections. Road network data provides the framework for many geomatics applications such as mapping, geocoding, geographic searching, and area delineations. NRN data can be used in a wide variety of activities, including managing road operations, business development and marketing, transportation, and government services delivery (e.g. census and elections).

Partners The following organizations are 'closest to the source' partners actively working as the authoritative data providers of GeoBase's National Road Network:

Provincial and Territorial Agencies

Federal Agencies

Geopolitical Boundaries This data layer contains the international, inter-provincial, and territorial boundaries, as well as the boundaries of Canada’s exclusive economic zone. It is not intended for legal use, and should be utilized for cartographic purposes only. The dataset is composed of three files: an administrative boundary file, an administrative areas file, and a metadata file.

Partners The authoritative data source providers for this data layer are:

Statistics Canada Elections Canada International Boundary Commission Canadian Hydrographic Service Archived 2015-02-08 at the Wayback Machine Province of Ontario Surveyor General Branch

National Hydro Network The NHN focuses on providing a quality geometric description and a set of basic attributes describing Canada’s inland surface waters. It provides geospatial digital data describing hydrographic features such as lakes, reservoirs, rivers, etc., as well as a linear drainage network and the toponymic information (geographical names) associated to hydrography.

Partners GeoBase is joined by the following provincial/territorial partners for this data layer:

Geodetic Network The Canadian Geodetic Network data has created a dynamic infrastructure to serve both present and future needs for positioning. As well as being a GPS control network, the Geodetic Network can serve as a monitoring network for deformation studies of the Canadian landmass.

Satellite Orthoimages GeoBase Orthoimage 2005–2010 is made from SPOT 4/5 earth observation data covering Canada's landmass south of the 81st parallel; approximately 5000 images will be acquired during the period 2005–2010. Each orthorectified satellite image covers an area of approximately 3 600 km2, or 60×60 km of the Earth’s surface. In addition, Landsat 7 provides a complete set of cloud-free orthoimages covering the Canadian landmass. The GeoBase SPOT 4 and SPOT 5 orthoimagery can be used in a wide variety of applications including: mapping; agriculture; forestry; geology; land-use planning and management; maritime monitoring; disaster management and mitigation; and in defence, intelligence, and security. GeoBase SPOT orthoimagery is aligned with, and can be integrated with, other GeoBase data layers. It can also be used in combination with other remotely sensed data.

Partners With funding support from GeoConnections, the following federal and provincial/territorial agencies jointly contributed to the production of the orthoimages:

Provincial and Territorial Agencies

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with GeoBase (geospatial data)

Start with the simplest possible case. Write down what GeoBase (geospatial data) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to GeoBase (geospatial data) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about GeoBase (geospatial data) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of GeoBase (geospatial data)

In research
GeoBase (geospatial data) appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses GeoBase (geospatial data) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
GeoBase (geospatial data) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Canadian federal government websites, Geographic data and information organizations, so understanding it makes those chapters shorter.
In everyday life
Look for GeoBase (geospatial data) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study GeoBase (geospatial data) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what GeoBase (geospatial data) means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain GeoBase (geospatial data) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GeoBase (geospatial data) in simple terms?

GeoBase is a federal, provincial and territorial government initiative that is overseen by the Canadian Council on Geomatics (CCOG). It is undertaken to ensure the provision of, and access to, a common, up-to-date and maintained base of quality geospatial data for Canada.

Why does GeoBase (geospatial data) matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study GeoBase (geospatial data)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on GeoBase (geospatial data).

Tags

  • Canadian federal government websites
  • Geographic data and information organizations

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