|
 |
 |
 |
Glossary Search Results
I |
- Ice Concentration
- The ratio (in tenth) expressing the proportion of water surface covered by ice in a given area. Based on concentration, drift ice is identified as very open (1/10 – 3/10), open (4/10 - 6/10), close (7/10 – 8/10), very close (9/10 - < 10/10) or compact (10/10).
- Image direction
- The orientation of an image appearing on an original copy or a photographic film. The image (either negative or positive) is said to be right-reading if it can be read normally when viewed from the emulsion side. The image (either negative or positive) is said to be wrong- or reverse-reading if it appears reversed when viewed from the emulsion side.
- Imagery
- A graphical 2-dimensional representation of an object, or the Earth's surface. An image can be produced by an optical device, such as a photographic camera, or an electronic device, such as a scanner. Remotely sensed images taken from a satellite are digital representations of the Earth's surface.
- Imperial system of measurement
- (See British system of measurement)
- Incidence Rate
- (See Morbidity)
- Incidence Ratio
- As used in the Atlas, incidence ratio is computed by dividing an age-standardized rate for a particular region by the rate for the geographical unit that has been employed as the standard or reference.
- Incidence of Low Income
- The incidence of low income is the proportion or percentage of economic families or unattached individuals in a given classification below the low income cut-offs. These incidence rates are calculated from unrounded estimates of economic families and unattached individuals 15 years of age and over. (Source: Statistics Canada)
- Income Status
- Refers to the position of an economic family or an unattached individual 15 years of age and over in relation to Statistics Canada’s low income cut-offs (LICOs). (Source: 1996 Census Dictionary, Cat. No. 92-351-XPE, Statistics Canada)
- Income Tax
- "Income tax" represents the amount paid in federal and provincial taxes, while "Income after tax" is defined as total income minus income tax paid. (Source: 1996 Census Dictionary, Cat. No. 92-351-XPE, Statistics Canada)
- Income per Capita
- The sum of income from all individuals in the region, divided by the population.
- Index contour line
- A contour line on a map shown in a heavier line, usually labelled in a gap in the line with the corresponding value of elevation, or depth it represents. On topographic maps, usually every fifth contour line starting at zero elevation is designated as an index contour line.
- Index map
- (1) A map showing the general location and coverage of other maps, aerial photographs or points of interest.
(2) A map showing the location, sheet lines and reference codes of maps in a map series.
- Index of Centrality
- While the size of the market determines the amount of service activity within a city, it may have more service activity than indicated by the size of the market, and this surplus of facilities is called "centrality". A high index value of centrality implies that the city is serving an extensive region outside the city, as well as the urban market itself. Conversely, a deficiency of service facilities suggests that the city's external role is quite limited, or that it may even import goods and service from nearby centres.
- Indian (or North American Indian)
- The term “Indian” collectively describes all the Indigenous people in Canada who are not Inuit or Métis. Indian peoples are one of three peoples recognized as Aboriginal in the Constitution Act, 1982. It specifies that Aboriginal people in Canada consist of the Indian, Inuit, and Métis peoples. In addition, three categories apply to Indians in Canada: Status Indians, Non-Status Indians and Treaty Indians. (See First Nation(s)) (Source: Department of Indian Affairs and Northern Development)
- Indian Band
- A band is a community of Indians for whom lands have been set apart, and for whom money is held by the Crown. A band is also a body of Indians declared by the Governor-in-Council to be a band for the purposes of the Indian Act. Many bands today prefer to be called “First Nations” and have changed their names to incorporate “First Nation”. (Source: Department of Indian Affairs and Northern Development)
- Indian Registry
- An official list of Status Indians maintained by the federal government. Certain criteria determine who can be registered as a Status Indian. Only Status Indians are recognized as Indians under the Indian Act, which defines an Indian as “a person who, pursuant to this Act, is registered as an Indian or is entitled to be registered as an Indian.” Status Indians are entitled to certain rights and benefits under the law. (Source: Department of Indian Affairs and Northern Development)
- Indian Reserve
- A reserve is the land that is set aside by the Crown for the use and benefit of a band in Canada. Many First Nations now prefer the term “First Nation community”, and no longer use “reserve”. (Source: Department of Indian Affairs and Northern Development)
Indian Reserve (R) is one of Statistics Canada’s census subdivision (CSD) type. Other CSD types which include First Nation communities are: Indian Government District (IGD), Indian settlement (S-E), Terres réservées (TR), Village cri (VC) and Village naskapi (VK). (Source: Statistics Canada)
- Indicator species
- An organism whose presence or absence suggests that certain environmental conditions prevail. It can be used to monitor how much of a factor is present, and how the environment is responding to stresses and changes.
- Individual projections
- (See Unique map projections)
- Industrial Zone
- Extensive areas within cities that are zoned for industrial use, but may also include wholesalers, big box stores, auto and other services. There are no internal links among stores and visibility gives way to low rent as a location advantage. Customers must seek out these facilities.
- Industrial water use
- In the Municipal Water Use Database, this refers to water used by industries connected to municipal water supplies. However, many industries have their own water supply system and are not included in this database.
- Infant Mortality
- Infant mortality refers to the death of a live born infant within the first year of life.
- Inhibitors
- Residues in milk from antibiotics given to cows to treat bacterial infections. Milk from treated cows cannot be sold for a specific period until traces of the medicine have been metabolized or excreted by the cow.
- Inset map
- (1) A map located within the border of a larger map depicting an area of the main map at a larger scale.
(2) A small scale key map (located in the surround) showing the area of the main map in the context of a greater region.
(3) A map showing a region outside the main map that is significant to the theme of the principal map. (See Surround).
- Interface
- A hardware and software link where interaction occurs between two computer systems, or a computer and its peripherals, for the purpose of data exchange.
- Intergovernmental Panel on Climate Change (IPCC)
- A body made up of the world’s leading climate scientists established in 1988 by the World Meteorological Organization (WMO) and the United Nations Environment Program (UNEP) to assess the available scientific, technical and socio-economic information in the field of climate change. (Source: Government of Canada Climate Change Site, Glossary of Climate Change Terms)
- Intermediate contour line
- A contour line which is drawn between index contour lines and shown as a thinner line. There are usually four intermediate contour lines between index contour lines on a topographic map.
- Intermontane valley
- Valley situated between or surrounded by mountains, mountain ranges or mountanious regions. (Source: Glossary of Geology. Robert L. Bates and Julia A. Jackson, Editors, American Geological Institute, 1987)
- International Date Line
- A hypothetical line on the Earth running from the North to South Pole generally following the 180° meridian, measured from Greenwich. It divides neighbouring regions so that the date differs by one day.
- International Map of the World (IMW)
- A map series designed to provide uniform coverage of the world (according to United Nations specifications) at the scale 1:1 000 000 . These maps are designed to meet the needs of specialists in many scientific disciplines as well as those of general users and to serve as bases for thematic maps of diverse subjects. The series is metric and employs the Lambert Conformal Conic Projection. For Canada, coverage consists of 69 maps produced by The National Atlas of Canada, Geomatics Canada and five maps of common Canada/United States boundary areas prepared by the United States Geological Survey.
- Interpolation
- The process of estimating the position, or value of points between points of known location or value.
- Interpretation
- The process of inferring, or determining the identity or nature of objects and patterns that appear as images on photographs, or other forms of remotely sensed imagery.
- Interrupted projection
- A type of world map projection which has been divided into gores, each gore providing coverage to certain landmass or ocean areas in order to reduce the amount of distortion normally found on other world map projections. This characteristic of reduced distortion occurs by fact of each gore having its own central meridian.
- Intersect
- To cut, or divide an object by crossing it with a line, or plane.
- Interval data
- Data whose values can be set on a scale of measurement indicating the distance, or time between differing values. This scale of measurement is usually depicted and explained in the map legend. A rainfall map indicating the number of millimetres per year in different locations would illustrate interval data.
- Inuit
- Inuit are the Aboriginal people of Arctic Canada. The word “Inuit” means “the people” in Inuktitut, the Inuit language, and is the term by which Inuit refer to themselves. The term “Eskimo”, applied to Inuit by European explorers, is no longer used in Canada. (Source: Department of Indian Affairs and Northern Development)
- Irrigation
- The application of water to a crop to augment what it receives from soil storage and precipitation. (Source: Agriculture and Agrifood Canada).
- Isoline
- (See Isopleth)
- Isometric diagram
- A diagram drawn in such a way that the object represented appears to have three dimensions. The scale is correct along three axes.
- Isopleth
- A line on a map joining points of equal value. Isopleths separate areas with low values from those with higher values. Examples are a contour line (joining points of equal elevation) or an isotherm (joining points of equal temperature). Also, called an isoline, or isarithm.
|
|
|
Select the first letter
of the word you are looking for |
|
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z
|
|
|
|
